]> git.xonotic.org Git - xonotic/gmqcc.git/blobdiff - ir.c
Moving all the global opts_ variables into a struct, now there's one global 'opts...
[xonotic/gmqcc.git] / ir.c
diff --git a/ir.c b/ir.c
index 28a81f9a435a222ad5a0963a418d6071682007e0..eb2e6b5c773e8f3a60860b05d32d0f40cf990d52 100644 (file)
--- a/ir.c
+++ b/ir.c
@@ -38,10 +38,11 @@ const char *type_name[TYPE_COUNT] = {
     "field",
     "function",
     "pointer",
-#if 0
     "integer",
-#endif
-    "variant"
+    "variant",
+    "struct",
+    "union",
+    "array"
 };
 
 size_t type_sizeof[TYPE_COUNT] = {
@@ -53,10 +54,11 @@ size_t type_sizeof[TYPE_COUNT] = {
     1, /* TYPE_FIELD    */
     1, /* TYPE_FUNCTION */
     1, /* TYPE_POINTER  */
-#if 0
     1, /* TYPE_INTEGER  */
-#endif
     3, /* TYPE_VARIANT  */
+    0, /* TYPE_STRUCT   */
+    0, /* TYPE_UNION    */
+    0, /* TYPE_ARRAY    */
 };
 
 uint16_t type_store_instr[TYPE_COUNT] = {
@@ -70,9 +72,37 @@ uint16_t type_store_instr[TYPE_COUNT] = {
     INSTR_STORE_ENT, /* should use I */
 #if 0
     INSTR_STORE_I, /* integer type */
+#else
+    INSTR_STORE_F,
 #endif
 
     INSTR_STORE_V, /* variant, should never be accessed */
+
+    AINSTR_END, /* struct */
+    AINSTR_END, /* union  */
+    AINSTR_END, /* array  */
+};
+
+uint16_t field_store_instr[TYPE_COUNT] = {
+    INSTR_STORE_FLD,
+    INSTR_STORE_FLD,
+    INSTR_STORE_FLD,
+    INSTR_STORE_V,
+    INSTR_STORE_FLD,
+    INSTR_STORE_FLD,
+    INSTR_STORE_FLD,
+    INSTR_STORE_FLD,
+#if 0
+    INSTR_STORE_FLD, /* integer type */
+#else
+    INSTR_STORE_FLD,
+#endif
+
+    INSTR_STORE_V, /* variant, should never be accessed */
+
+    AINSTR_END, /* struct */
+    AINSTR_END, /* union  */
+    AINSTR_END, /* array  */
 };
 
 uint16_t type_storep_instr[TYPE_COUNT] = {
@@ -86,9 +116,15 @@ uint16_t type_storep_instr[TYPE_COUNT] = {
     INSTR_STOREP_ENT, /* should use I */
 #if 0
     INSTR_STOREP_ENT, /* integer type */
+#else
+    INSTR_STOREP_F,
 #endif
 
     INSTR_STOREP_V, /* variant, should never be accessed */
+
+    AINSTR_END, /* struct */
+    AINSTR_END, /* union  */
+    AINSTR_END, /* array  */
 };
 
 uint16_t type_eq_instr[TYPE_COUNT] = {
@@ -102,9 +138,15 @@ uint16_t type_eq_instr[TYPE_COUNT] = {
     INSTR_EQ_E, /* should use I */
 #if 0
     INSTR_EQ_I,
+#else
+    INSTR_EQ_F,
 #endif
 
     INSTR_EQ_V, /* variant, should never be accessed */
+
+    AINSTR_END, /* struct */
+    AINSTR_END, /* union  */
+    AINSTR_END, /* array  */
 };
 
 uint16_t type_ne_instr[TYPE_COUNT] = {
@@ -118,18 +160,49 @@ uint16_t type_ne_instr[TYPE_COUNT] = {
     INSTR_NE_E, /* should use I */
 #if 0
     INSTR_NE_I,
+#else
+    INSTR_NE_F,
 #endif
 
     INSTR_NE_V, /* variant, should never be accessed */
+
+    AINSTR_END, /* struct */
+    AINSTR_END, /* union  */
+    AINSTR_END, /* array  */
 };
 
-MEM_VEC_FUNCTIONS(ir_value_vector, ir_value*, v)
+uint16_t type_not_instr[TYPE_COUNT] = {
+    INSTR_NOT_F, /* should use I when having integer support */
+    INSTR_NOT_S,
+    INSTR_NOT_F,
+    INSTR_NOT_V,
+    INSTR_NOT_ENT,
+    INSTR_NOT_ENT,
+    INSTR_NOT_FNC,
+    INSTR_NOT_ENT, /* should use I */
+#if 0
+    INSTR_NOT_I, /* integer type */
+#else
+    INSTR_NOT_F,
+#endif
+
+    INSTR_NOT_V, /* variant, should never be accessed */
+
+    AINSTR_END, /* struct */
+    AINSTR_END, /* union  */
+    AINSTR_END, /* array  */
+};
+
+/* protos */
+static void ir_gen_extparam(ir_builder *ir);
+
+/* error functions */
 
 static void irerror(lex_ctx ctx, const char *msg, ...)
 {
     va_list ap;
     va_start(ap, msg);
-    cvprintmsg(ctx, LVL_ERROR, "internal error", msg, ap);
+    con_cvprintmsg((void*)&ctx, LVL_ERROR, "internal error", msg, ap);
     va_end(ap);
 }
 
@@ -138,23 +211,70 @@ static bool irwarning(lex_ctx ctx, int warntype, const char *fmt, ...)
        va_list ap;
        int lvl = LVL_WARNING;
 
-    if (!OPTS_WARN(warntype))
+    if (warntype && !OPTS_WARN(warntype))
         return false;
 
-    if (opts_werror)
+    if (opts.werror)
            lvl = LVL_ERROR;
 
        va_start(ap, fmt);
-    vprintmsg(lvl, ctx.file, ctx.line, "warning", fmt, ap);
+    con_vprintmsg(lvl, ctx.file, ctx.line, (opts.werror ? "error" : "warning"), fmt, ap);
        va_end(ap);
 
-       return opts_werror;
+       return opts.werror;
+}
+
+/***********************************************************************
+ * Vector utility functions
+ */
+
+bool GMQCC_WARN vec_ir_value_find(ir_value **vec, ir_value *what, size_t *idx)
+{
+    size_t i;
+    size_t len = vec_size(vec);
+    for (i = 0; i < len; ++i) {
+        if (vec[i] == what) {
+            if (idx) *idx = i;
+            return true;
+        }
+    }
+    return false;
+}
+
+bool GMQCC_WARN vec_ir_block_find(ir_block **vec, ir_block *what, size_t *idx)
+{
+    size_t i;
+    size_t len = vec_size(vec);
+    for (i = 0; i < len; ++i) {
+        if (vec[i] == what) {
+            if (idx) *idx = i;
+            return true;
+        }
+    }
+    return false;
+}
+
+bool GMQCC_WARN vec_ir_instr_find(ir_instr **vec, ir_instr *what, size_t *idx)
+{
+    size_t i;
+    size_t len = vec_size(vec);
+    for (i = 0; i < len; ++i) {
+        if (vec[i] == what) {
+            if (idx) *idx = i;
+            return true;
+        }
+    }
+    return false;
 }
 
 /***********************************************************************
- *IR Builder
+ * IR Builder
  */
 
+static void ir_block_delete_quick(ir_block* self);
+static void ir_instr_delete_quick(ir_instr *self);
+static void ir_function_delete_quick(ir_function *self);
+
 ir_builder* ir_builder_new(const char *modulename)
 {
     ir_builder* self;
@@ -163,43 +283,51 @@ ir_builder* ir_builder_new(const char *modulename)
     if (!self)
         return NULL;
 
-    MEM_VECTOR_INIT(self, functions);
-    MEM_VECTOR_INIT(self, globals);
-    MEM_VECTOR_INIT(self, fields);
+    self->functions   = NULL;
+    self->globals     = NULL;
+    self->fields      = NULL;
+    self->extparams   = NULL;
+    self->filenames   = NULL;
+    self->filestrings = NULL;
+    self->htglobals   = util_htnew(IR_HT_SIZE);
+    self->htfields    = util_htnew(IR_HT_SIZE);
+    self->htfunctions = util_htnew(IR_HT_SIZE);
+
+    self->str_immediate = 0;
     self->name = NULL;
     if (!ir_builder_set_name(self, modulename)) {
         mem_d(self);
         return NULL;
     }
 
-    /* globals which always exist */
-
-    /* for now we give it a vector size */
-    ir_builder_create_global(self, "OFS_RETURN", TYPE_VARIANT);
-
     return self;
 }
 
-MEM_VEC_FUNCTIONS(ir_builder, ir_value*, globals)
-MEM_VEC_FUNCTIONS(ir_builder, ir_value*, fields)
-MEM_VEC_FUNCTIONS(ir_builder, ir_function*, functions)
-
 void ir_builder_delete(ir_builder* self)
 {
     size_t i;
+    util_htdel(self->htglobals);
+    util_htdel(self->htfields);
+    util_htdel(self->htfunctions);
     mem_d((void*)self->name);
-    for (i = 0; i != self->functions_count; ++i) {
-        ir_function_delete(self->functions[i]);
+    for (i = 0; i != vec_size(self->functions); ++i) {
+        ir_function_delete_quick(self->functions[i]);
+    }
+    vec_free(self->functions);
+    for (i = 0; i != vec_size(self->extparams); ++i) {
+        ir_value_delete(self->extparams[i]);
     }
-    MEM_VECTOR_CLEAR(self, functions);
-    for (i = 0; i != self->globals_count; ++i) {
+    vec_free(self->extparams);
+    for (i = 0; i != vec_size(self->globals); ++i) {
         ir_value_delete(self->globals[i]);
     }
-    MEM_VECTOR_CLEAR(self, globals);
-    for (i = 0; i != self->fields_count; ++i) {
+    vec_free(self->globals);
+    for (i = 0; i != vec_size(self->fields); ++i) {
         ir_value_delete(self->fields[i]);
     }
-    MEM_VECTOR_CLEAR(self, fields);
+    vec_free(self->fields);
+    vec_free(self->filenames);
+    vec_free(self->filestrings);
     mem_d(self);
 }
 
@@ -213,12 +341,7 @@ bool ir_builder_set_name(ir_builder *self, const char *name)
 
 ir_function* ir_builder_get_function(ir_builder *self, const char *name)
 {
-    size_t i;
-    for (i = 0; i < self->functions_count; ++i) {
-        if (!strcmp(name, self->functions[i]->name))
-            return self->functions[i];
-    }
-    return NULL;
+    return (ir_function*)util_htget(self->htfunctions, name);
 }
 
 ir_function* ir_builder_create_function(ir_builder *self, const char *name, int outtype)
@@ -229,12 +352,13 @@ ir_function* ir_builder_create_function(ir_builder *self, const char *name, int
     }
 
     fn = ir_function_new(self, outtype);
-    if (!ir_function_set_name(fn, name) ||
-        !ir_builder_functions_add(self, fn) )
+    if (!ir_function_set_name(fn, name))
     {
         ir_function_delete(fn);
         return NULL;
     }
+    vec_push(self->functions, fn);
+    util_htset(self->htfunctions, name, fn);
 
     fn->value = ir_builder_create_global(self, fn->name, TYPE_FUNCTION);
     if (!fn->value) {
@@ -242,7 +366,7 @@ ir_function* ir_builder_create_function(ir_builder *self, const char *name, int
         return NULL;
     }
 
-    fn->value->isconst = true;
+    fn->value->hasvalue = true;
     fn->value->outtype = outtype;
     fn->value->constval.vfunc = fn;
     fn->value->context = fn->context;
@@ -252,12 +376,7 @@ ir_function* ir_builder_create_function(ir_builder *self, const char *name, int
 
 ir_value* ir_builder_get_global(ir_builder *self, const char *name)
 {
-    size_t i;
-    for (i = 0; i < self->globals_count; ++i) {
-        if (!strcmp(self->globals[i]->name, name))
-            return self->globals[i];
-    }
-    return NULL;
+    return (ir_value*)util_htget(self->htglobals, name);
 }
 
 ir_value* ir_builder_create_global(ir_builder *self, const char *name, int vtype)
@@ -273,21 +392,14 @@ ir_value* ir_builder_create_global(ir_builder *self, const char *name, int vtype
     }
 
     ve = ir_value_var(name, store_global, vtype);
-    if (!ir_builder_globals_add(self, ve)) {
-        ir_value_delete(ve);
-        return NULL;
-    }
+    vec_push(self->globals, ve);
+    util_htset(self->htglobals, name, ve);
     return ve;
 }
 
 ir_value* ir_builder_get_field(ir_builder *self, const char *name)
 {
-    size_t i;
-    for (i = 0; i < self->fields_count; ++i) {
-        if (!strcmp(self->fields[i]->name, name))
-            return self->fields[i];
-    }
-    return NULL;
+    return (ir_value*)util_htget(self->htfields, name);
 }
 
 
@@ -300,10 +412,8 @@ ir_value* ir_builder_create_field(ir_builder *self, const char *name, int vtype)
 
     ve = ir_value_var(name, store_global, TYPE_FIELD);
     ve->fieldtype = vtype;
-    if (!ir_builder_fields_add(self, ve)) {
-        ir_value_delete(ve);
-        return NULL;
-    }
+    vec_push(self->fields, ve);
+    util_htset(self->htfields, name, ve);
     return ve;
 }
 
@@ -337,10 +447,11 @@ ir_function* ir_function_new(ir_builder* owner, int outtype)
     self->outtype = outtype;
     self->value = NULL;
     self->builtin = 0;
-    MEM_VECTOR_INIT(self, params);
-    MEM_VECTOR_INIT(self, blocks);
-    MEM_VECTOR_INIT(self, values);
-    MEM_VECTOR_INIT(self, locals);
+
+    self->params = NULL;
+    self->blocks = NULL;
+    self->values = NULL;
+    self->locals = NULL;
 
     self->code_function_def = -1;
     self->allocated_locals = 0;
@@ -348,10 +459,6 @@ ir_function* ir_function_new(ir_builder* owner, int outtype)
     self->run_id = 0;
     return self;
 }
-MEM_VEC_FUNCTIONS(ir_function, ir_value*, values)
-MEM_VEC_FUNCTIONS(ir_function, ir_block*, blocks)
-MEM_VEC_FUNCTIONS(ir_function, ir_value*, locals)
-MEM_VEC_FUNCTIONS(ir_function, int,       params)
 
 bool ir_function_set_name(ir_function *self, const char *name)
 {
@@ -361,51 +468,239 @@ bool ir_function_set_name(ir_function *self, const char *name)
     return !!self->name;
 }
 
+static void ir_function_delete_quick(ir_function *self)
+{
+    size_t i;
+    mem_d((void*)self->name);
+
+    for (i = 0; i != vec_size(self->blocks); ++i)
+        ir_block_delete_quick(self->blocks[i]);
+    vec_free(self->blocks);
+
+    vec_free(self->params);
+
+    for (i = 0; i != vec_size(self->values); ++i)
+        ir_value_delete(self->values[i]);
+    vec_free(self->values);
+
+    for (i = 0; i != vec_size(self->locals); ++i)
+        ir_value_delete(self->locals[i]);
+    vec_free(self->locals);
+
+    /* self->value is deleted by the builder */
+
+    mem_d(self);
+}
+
 void ir_function_delete(ir_function *self)
 {
     size_t i;
     mem_d((void*)self->name);
 
-    for (i = 0; i != self->blocks_count; ++i)
+    for (i = 0; i != vec_size(self->blocks); ++i)
         ir_block_delete(self->blocks[i]);
-    MEM_VECTOR_CLEAR(self, blocks);
+    vec_free(self->blocks);
 
-    MEM_VECTOR_CLEAR(self, params);
+    vec_free(self->params);
 
-    for (i = 0; i != self->values_count; ++i)
+    for (i = 0; i != vec_size(self->values); ++i)
         ir_value_delete(self->values[i]);
-    MEM_VECTOR_CLEAR(self, values);
+    vec_free(self->values);
 
-    for (i = 0; i != self->locals_count; ++i)
+    for (i = 0; i != vec_size(self->locals); ++i)
         ir_value_delete(self->locals[i]);
-    MEM_VECTOR_CLEAR(self, locals);
+    vec_free(self->locals);
 
     /* self->value is deleted by the builder */
 
     mem_d(self);
 }
 
-bool GMQCC_WARN ir_function_collect_value(ir_function *self, ir_value *v)
+void ir_function_collect_value(ir_function *self, ir_value *v)
 {
-    return ir_function_values_add(self, v);
+    vec_push(self->values, v);
 }
 
-ir_block* ir_function_create_block(ir_function *self, const char *label)
+ir_block* ir_function_create_block(lex_ctx ctx, ir_function *self, const char *label)
 {
     ir_block* bn = ir_block_new(self, label);
-    memcpy(&bn->context, &self->context, sizeof(self->context));
-    if (!ir_function_blocks_add(self, bn)) {
-        ir_block_delete(bn);
-        return NULL;
-    }
+    bn->context = ctx;
+    vec_push(self->blocks, bn);
     return bn;
 }
 
+static bool instr_is_operation(uint16_t op)
+{
+    return ( (op >= INSTR_MUL_F  && op <= INSTR_GT) ||
+             (op >= INSTR_LOAD_F && op <= INSTR_LOAD_FNC) ||
+             (op == INSTR_ADDRESS) ||
+             (op >= INSTR_NOT_F  && op <= INSTR_NOT_FNC) ||
+             (op >= INSTR_AND    && op <= INSTR_BITOR) );
+}
+
+bool ir_function_pass_minor(ir_function *self)
+{
+    size_t b;
+
+    for (b = 0; b < vec_size(self->blocks); ++b) {
+        size_t    i;
+        ir_block *block = self->blocks[b];
+
+        if (vec_size(block->instr) < 2)
+            continue;
+
+        for (i = 1; i < vec_size(block->instr); ++i) {
+            ir_instr *store;
+            ir_instr *oper;
+            ir_value *value;
+
+            store = block->instr[i];
+            if (store->opcode < INSTR_STORE_F ||
+                store->opcode > INSTR_STORE_FNC)
+            {
+                continue;
+            }
+
+            oper  = block->instr[i-1];
+            if (!instr_is_operation(oper->opcode))
+                continue;
+
+            value = oper->_ops[0];
+
+            /* only do it for SSA values */
+            if (value->store != store_value)
+                continue;
+
+            /* don't optimize out the temp if it's used later again */
+            if (vec_size(value->reads) != 1)
+                continue;
+
+            /* The very next store must use this value */
+            if (value->reads[0] != store)
+                continue;
+
+            /* And of course the store must _read_ from it, so it's in
+             * OP 1 */
+            if (store->_ops[1] != value)
+                continue;
+
+            ++optimization_count[OPTIM_PEEPHOLE];
+            oper->_ops[0] = store->_ops[0];
+
+            vec_remove(block->instr, i, 1);
+            ir_instr_delete(store);
+        }
+    }
+
+    return true;
+}
+
+bool ir_function_pass_tailcall(ir_function *self)
+{
+    size_t b, p;
+
+    for (b = 0; b < vec_size(self->blocks); ++b) {
+        ir_value *funcval;
+        ir_instr *ret, *call, *store = NULL;
+        ir_block *block = self->blocks[b];
+
+        if (!block->final || vec_size(block->instr) < 2)
+            continue;
+
+        ret = block->instr[vec_size(block->instr)-1];
+        if (ret->opcode != INSTR_DONE && ret->opcode != INSTR_RETURN)
+            continue;
+
+        call = block->instr[vec_size(block->instr)-2];
+        if (call->opcode >= INSTR_STORE_F && call->opcode <= INSTR_STORE_FNC) {
+            /* account for the unoptimized
+             * CALL
+             * STORE %return, %tmp
+             * RETURN %tmp
+             * version
+             */
+            if (vec_size(block->instr) < 3)
+                continue;
+
+            store = call;
+            call = block->instr[vec_size(block->instr)-3];
+        }
+
+        if (call->opcode < INSTR_CALL0 || call->opcode > INSTR_CALL8)
+            continue;
+
+        if (store) {
+            /* optimize out the STORE */
+            if (ret->_ops[0]   &&
+                ret->_ops[0]   == store->_ops[0] &&
+                store->_ops[1] == call->_ops[0])
+            {
+                ++optimization_count[OPTIM_PEEPHOLE];
+                call->_ops[0] = store->_ops[0];
+                vec_remove(block->instr, vec_size(block->instr) - 2, 1);
+                ir_instr_delete(store);
+            }
+            else
+                continue;
+        }
+
+        if (!call->_ops[0])
+            continue;
+
+        funcval = call->_ops[1];
+        if (!funcval)
+            continue;
+        if (funcval->vtype != TYPE_FUNCTION || funcval->constval.vfunc != self)
+            continue;
+
+        /* now we have a CALL and a RET, check if it's a tailcall */
+        if (ret->_ops[0] && call->_ops[0] != ret->_ops[0])
+            continue;
+
+        ++optimization_count[OPTIM_TAIL_RECURSION];
+        vec_shrinkby(block->instr, 2);
+
+        block->final = false; /* open it back up */
+
+        /* emite parameter-stores */
+        for (p = 0; p < vec_size(call->params); ++p) {
+            /* assert(call->params_count <= self->locals_count); */
+            if (!ir_block_create_store(block, call->context, self->locals[p], call->params[p])) {
+                irerror(call->context, "failed to create tailcall store instruction for parameter %i", (int)p);
+                return false;
+            }
+        }
+        if (!ir_block_create_jump(block, call->context, self->blocks[0])) {
+            irerror(call->context, "failed to create tailcall jump");
+            return false;
+        }
+
+        ir_instr_delete(call);
+        ir_instr_delete(ret);
+    }
+
+    return true;
+}
+
 bool ir_function_finalize(ir_function *self)
 {
     if (self->builtin)
         return true;
 
+    if (OPTS_OPTIMIZATION(OPTIM_PEEPHOLE)) {
+        if (!ir_function_pass_minor(self)) {
+            irerror(self->context, "generic optimization pass broke something in `%s`", self->name);
+            return false;
+        }
+    }
+
+    if (OPTS_OPTIMIZATION(OPTIM_TAIL_RECURSION)) {
+        if (!ir_function_pass_tailcall(self)) {
+            irerror(self->context, "tailcall optimization pass broke something in `%s`", self->name);
+            return false;
+        }
+    }
+
     if (!ir_function_naive_phi(self))
         return false;
 
@@ -413,41 +708,24 @@ bool ir_function_finalize(ir_function *self)
 
     if (!ir_function_calculate_liferanges(self))
         return false;
-
     if (!ir_function_allocate_locals(self))
         return false;
     return true;
 }
 
-ir_value* ir_function_get_local(ir_function *self, const char *name)
-{
-    size_t i;
-    for (i = 0; i < self->locals_count; ++i) {
-        if (!strcmp(self->locals[i]->name, name))
-            return self->locals[i];
-    }
-    return NULL;
-}
-
 ir_value* ir_function_create_local(ir_function *self, const char *name, int vtype, bool param)
 {
-    ir_value *ve = ir_function_get_local(self, name);
-    if (ve) {
-        return NULL;
-    }
+    ir_value *ve;
 
     if (param &&
-        self->locals_count &&
-        self->locals[self->locals_count-1]->store != store_param) {
+        vec_size(self->locals) &&
+        self->locals[vec_size(self->locals)-1]->store != store_param) {
         irerror(self->context, "cannot add parameters after adding locals");
         return NULL;
     }
 
     ve = ir_value_var(name, (param ? store_param : store_local), vtype);
-    if (!ir_function_locals_add(self, ve)) {
-        ir_value_delete(ve);
-        return NULL;
-    }
+    vec_push(self->locals, ve);
     return ve;
 }
 
@@ -465,7 +743,7 @@ ir_block* ir_block_new(ir_function* owner, const char *name)
     memset(self, 0, sizeof(*self));
 
     self->label = NULL;
-    if (!ir_block_set_label(self, name)) {
+    if (name && !ir_block_set_label(self, name)) {
         mem_d(self);
         return NULL;
     }
@@ -473,34 +751,45 @@ ir_block* ir_block_new(ir_function* owner, const char *name)
     self->context.file = "<@no context>";
     self->context.line = 0;
     self->final = false;
-    MEM_VECTOR_INIT(self, instr);
-    MEM_VECTOR_INIT(self, entries);
-    MEM_VECTOR_INIT(self, exits);
+
+    self->instr   = NULL;
+    self->entries = NULL;
+    self->exits   = NULL;
 
     self->eid = 0;
     self->is_return = false;
     self->run_id = 0;
-    MEM_VECTOR_INIT(self, living);
+
+    self->living = NULL;
 
     self->generated = false;
 
     return self;
 }
-MEM_VEC_FUNCTIONS(ir_block, ir_instr*, instr)
-MEM_VEC_FUNCTIONS_ALL(ir_block, ir_block*, entries)
-MEM_VEC_FUNCTIONS_ALL(ir_block, ir_block*, exits)
-MEM_VEC_FUNCTIONS_ALL(ir_block, ir_value*, living)
+
+static void ir_block_delete_quick(ir_block* self)
+{
+    size_t i;
+    if (self->label) mem_d(self->label);
+    for (i = 0; i != vec_size(self->instr); ++i)
+        ir_instr_delete_quick(self->instr[i]);
+    vec_free(self->instr);
+    vec_free(self->entries);
+    vec_free(self->exits);
+    vec_free(self->living);
+    mem_d(self);
+}
 
 void ir_block_delete(ir_block* self)
 {
     size_t i;
-    mem_d(self->label);
-    for (i = 0; i != self->instr_count; ++i)
+    if (self->label) mem_d(self->label);
+    for (i = 0; i != vec_size(self->instr); ++i)
         ir_instr_delete(self->instr[i]);
-    MEM_VECTOR_CLEAR(self, instr);
-    MEM_VECTOR_CLEAR(self, entries);
-    MEM_VECTOR_CLEAR(self, exits);
-    MEM_VECTOR_CLEAR(self, living);
+    vec_free(self->instr);
+    vec_free(self->entries);
+    vec_free(self->exits);
+    vec_free(self->living);
     mem_d(self);
 }
 
@@ -516,7 +805,7 @@ bool ir_block_set_label(ir_block *self, const char *name)
  *IR Instructions
  */
 
-ir_instr* ir_instr_new(ir_block* owner, int op)
+ir_instr* ir_instr_new(lex_ctx ctx, ir_block* owner, int op)
 {
     ir_instr *self;
     self = (ir_instr*)mem_a(sizeof(*self));
@@ -524,22 +813,29 @@ ir_instr* ir_instr_new(ir_block* owner, int op)
         return NULL;
 
     self->owner = owner;
-    self->context.file = "<@no context>";
-    self->context.line = 0;
+    self->context = ctx;
     self->opcode = op;
     self->_ops[0] = NULL;
     self->_ops[1] = NULL;
     self->_ops[2] = NULL;
     self->bops[0] = NULL;
     self->bops[1] = NULL;
-    MEM_VECTOR_INIT(self, phi);
-    MEM_VECTOR_INIT(self, params);
+
+    self->phi    = NULL;
+    self->params = NULL;
 
     self->eid = 0;
+
+    self->likely = true;
     return self;
 }
-MEM_VEC_FUNCTIONS(ir_instr, ir_phi_entry_t, phi)
-MEM_VEC_FUNCTIONS(ir_instr, ir_value*, params)
+
+static void ir_instr_delete_quick(ir_instr *self)
+{
+    vec_free(self->phi);
+    vec_free(self->params);
+    mem_d(self);
+}
 
 void ir_instr_delete(ir_instr *self)
 {
@@ -550,25 +846,25 @@ void ir_instr_delete(ir_instr *self)
      * gcc doesn't care about an explicit: (void)foo(); to ignore the result,
      * I have to improvise here and use if(foo());
      */
-    for (i = 0; i < self->phi_count; ++i) {
+    for (i = 0; i < vec_size(self->phi); ++i) {
         size_t idx;
-        if (ir_value_writes_find(self->phi[i].value, self, &idx))
-            if (ir_value_writes_remove(self->phi[i].value, idx)) GMQCC_SUPPRESS_EMPTY_BODY;
-        if (ir_value_reads_find(self->phi[i].value, self, &idx))
-            if (ir_value_reads_remove (self->phi[i].value, idx)) GMQCC_SUPPRESS_EMPTY_BODY;
+        if (vec_ir_instr_find(self->phi[i].value->writes, self, &idx))
+            vec_remove(self->phi[i].value->writes, idx, 1);
+        if (vec_ir_instr_find(self->phi[i].value->reads, self, &idx))
+            vec_remove(self->phi[i].value->reads, idx, 1);
     }
-    MEM_VECTOR_CLEAR(self, phi);
-    for (i = 0; i < self->params_count; ++i) {
+    vec_free(self->phi);
+    for (i = 0; i < vec_size(self->params); ++i) {
         size_t idx;
-        if (ir_value_writes_find(self->params[i], self, &idx))
-            if (ir_value_writes_remove(self->params[i], idx)) GMQCC_SUPPRESS_EMPTY_BODY;
-        if (ir_value_reads_find(self->params[i], self, &idx))
-            if (ir_value_reads_remove (self->params[i], idx)) GMQCC_SUPPRESS_EMPTY_BODY;
-    }
-    MEM_VECTOR_CLEAR(self, params);
-    if (ir_instr_op(self, 0, NULL, false)) GMQCC_SUPPRESS_EMPTY_BODY;
-    if (ir_instr_op(self, 1, NULL, false)) GMQCC_SUPPRESS_EMPTY_BODY;
-    if (ir_instr_op(self, 2, NULL, false)) GMQCC_SUPPRESS_EMPTY_BODY;
+        if (vec_ir_instr_find(self->params[i]->writes, self, &idx))
+            vec_remove(self->params[i]->writes, idx, 1);
+        if (vec_ir_instr_find(self->params[i]->reads, self, &idx))
+            vec_remove(self->params[i]->reads, idx, 1);
+    }
+    vec_free(self->params);
+    (void)!ir_instr_op(self, 0, NULL, false);
+    (void)!ir_instr_op(self, 1, NULL, false);
+    (void)!ir_instr_op(self, 2, NULL, false);
     mem_d(self);
 }
 
@@ -576,25 +872,16 @@ bool ir_instr_op(ir_instr *self, int op, ir_value *v, bool writing)
 {
     if (self->_ops[op]) {
         size_t idx;
-        if (writing && ir_value_writes_find(self->_ops[op], self, &idx))
-        {
-            if (!ir_value_writes_remove(self->_ops[op], idx))
-                return false;
-        }
-        else if (ir_value_reads_find(self->_ops[op], self, &idx))
-        {
-            if (!ir_value_reads_remove(self->_ops[op], idx))
-                return false;
-        }
+        if (writing && vec_ir_instr_find(self->_ops[op]->writes, self, &idx))
+            vec_remove(self->_ops[op]->writes, idx, 1);
+        else if (vec_ir_instr_find(self->_ops[op]->reads, self, &idx))
+            vec_remove(self->_ops[op]->reads, idx, 1);
     }
     if (v) {
-        if (writing) {
-            if (!ir_value_writes_add(v, self))
-                return false;
-        } else {
-            if (!ir_value_reads_add(v, self))
-                return false;
-        }
+        if (writing)
+            vec_push(v->writes, self);
+        else
+            vec_push(v->reads, self);
     }
     self->_ops[op] = v;
     return true;
@@ -627,13 +914,20 @@ ir_value* ir_value_var(const char *name, int storetype, int vtype)
     self->fieldtype = TYPE_VOID;
     self->outtype = TYPE_VOID;
     self->store = storetype;
-    MEM_VECTOR_INIT(self, reads);
-    MEM_VECTOR_INIT(self, writes);
-    self->isconst = false;
+
+    self->reads  = NULL;
+    self->writes = NULL;
+
+    self->cvq          = CV_NONE;
+    self->hasvalue     = false;
     self->context.file = "<@no context>";
     self->context.line = 0;
     self->name = NULL;
-    ir_value_set_name(self, name);
+    if (name && !ir_value_set_name(self, name)) {
+        irerror(self->context, "out of memory");
+        mem_d(self);
+        return NULL;
+    }
 
     memset(&self->constval, 0, sizeof(self->constval));
     memset(&self->code,     0, sizeof(self->code));
@@ -643,7 +937,9 @@ ir_value* ir_value_var(const char *name, int storetype, int vtype)
     self->members[2] = NULL;
     self->memberof = NULL;
 
-    MEM_VECTOR_INIT(self, life);
+    self->unique_life = false;
+
+    self->life = NULL;
     return self;
 }
 
@@ -689,20 +985,12 @@ ir_value* ir_value_vector_member(ir_value *self, unsigned int member)
     return m;
 }
 
-MEM_VEC_FUNCTIONS(ir_value, ir_life_entry_t, life)
-MEM_VEC_FUNCTIONS_ALL(ir_value, ir_instr*, reads)
-MEM_VEC_FUNCTIONS_ALL(ir_value, ir_instr*, writes)
-
 ir_value* ir_value_out(ir_function *owner, const char *name, int storetype, int vtype)
 {
     ir_value *v = ir_value_var(name, storetype, vtype);
     if (!v)
         return NULL;
-    if (!ir_function_collect_value(owner, v))
-    {
-        ir_value_delete(v);
-        return NULL;
-    }
+    ir_function_collect_value(owner, v);
     return v;
 }
 
@@ -711,7 +999,7 @@ void ir_value_delete(ir_value* self)
     size_t i;
     if (self->name)
         mem_d((void*)self->name);
-    if (self->isconst)
+    if (self->hasvalue)
     {
         if (self->vtype == TYPE_STRING)
             mem_d((void*)self->constval.vstring);
@@ -720,17 +1008,18 @@ void ir_value_delete(ir_value* self)
         if (self->members[i])
             ir_value_delete(self->members[i]);
     }
-    MEM_VECTOR_CLEAR(self, reads);
-    MEM_VECTOR_CLEAR(self, writes);
-    MEM_VECTOR_CLEAR(self, life);
+    vec_free(self->reads);
+    vec_free(self->writes);
+    vec_free(self->life);
     mem_d(self);
 }
 
-void ir_value_set_name(ir_value *self, const char *name)
+bool ir_value_set_name(ir_value *self, const char *name)
 {
     if (self->name)
         mem_d((void*)self->name);
     self->name = util_strdup(name);
+    return !!self->name;
 }
 
 bool ir_value_set_float(ir_value *self, float f)
@@ -738,7 +1027,7 @@ bool ir_value_set_float(ir_value *self, float f)
     if (self->vtype != TYPE_FLOAT)
         return false;
     self->constval.vfloat = f;
-    self->isconst = true;
+    self->hasvalue = true;
     return true;
 }
 
@@ -747,7 +1036,7 @@ bool ir_value_set_func(ir_value *self, int f)
     if (self->vtype != TYPE_FUNCTION)
         return false;
     self->constval.vint = f;
-    self->isconst = true;
+    self->hasvalue = true;
     return true;
 }
 
@@ -756,7 +1045,7 @@ bool ir_value_set_vector(ir_value *self, vector v)
     if (self->vtype != TYPE_VECTOR)
         return false;
     self->constval.vvec = v;
-    self->isconst = true;
+    self->hasvalue = true;
     return true;
 }
 
@@ -765,7 +1054,7 @@ bool ir_value_set_field(ir_value *self, ir_value *fld)
     if (self->vtype != TYPE_FIELD)
         return false;
     self->constval.vpointer = fld;
-    self->isconst = true;
+    self->hasvalue = true;
     return true;
 }
 
@@ -785,7 +1074,7 @@ bool ir_value_set_string(ir_value *self, const char *str)
     if (self->vtype != TYPE_STRING)
         return false;
     self->constval.vstring = ir_strdup(str);
-    self->isconst = true;
+    self->hasvalue = true;
     return true;
 }
 
@@ -795,7 +1084,7 @@ bool ir_value_set_int(ir_value *self, int i)
     if (self->vtype != TYPE_INTEGER)
         return false;
     self->constval.vint = i;
-    self->isconst = true;
+    self->hasvalue = true;
     return true;
 }
 #endif
@@ -803,7 +1092,7 @@ bool ir_value_set_int(ir_value *self, int i)
 bool ir_value_lives(ir_value *self, size_t at)
 {
     size_t i;
-    for (i = 0; i < self->life_count; ++i)
+    for (i = 0; i < vec_size(self->life); ++i)
     {
         ir_life_entry_t *life = &self->life[i];
         if (life->start <= at && at <= life->end)
@@ -817,9 +1106,8 @@ bool ir_value_lives(ir_value *self, size_t at)
 bool ir_value_life_insert(ir_value *self, size_t idx, ir_life_entry_t e)
 {
     size_t k;
-    if (!ir_value_life_add(self, e)) /* naive... */
-        return false;
-    for (k = self->life_count-1; k > idx; --k)
+    vec_push(self->life, e);
+    for (k = vec_size(self->life)-1; k > idx; --k)
         self->life[k] = self->life[k-1];
     self->life[idx] = e;
     return true;
@@ -833,7 +1121,7 @@ bool ir_value_life_merge(ir_value *self, size_t s)
     ir_life_entry_t new_entry;
 
     /* Find the first range >= s */
-    for (i = 0; i < self->life_count; ++i)
+    for (i = 0; i < vec_size(self->life); ++i)
     {
         before = life;
         life = &self->life[i];
@@ -841,7 +1129,7 @@ bool ir_value_life_merge(ir_value *self, size_t s)
             break;
     }
     /* nothing found? append */
-    if (i == self->life_count) {
+    if (i == vec_size(self->life)) {
         ir_life_entry_t e;
         if (life && life->end+1 == s)
         {
@@ -852,8 +1140,7 @@ bool ir_value_life_merge(ir_value *self, size_t s)
         if (life && life->end >= s)
             return false;
         e.start = e.end = s;
-        if (!ir_value_life_add(self, e))
-            return false; /* failing */
+        vec_push(self->life, e);
         return true;
     }
     /* found */
@@ -864,8 +1151,7 @@ bool ir_value_life_merge(ir_value *self, size_t s)
         {
             /* merge */
             before->end = life->end;
-            if (!ir_value_life_remove(self, i))
-                return false; /* failing */
+            vec_remove(self->life, i, 1);
             return true;
         }
         if (before->end + 1 == s)
@@ -893,19 +1179,18 @@ bool ir_value_life_merge_into(ir_value *self, const ir_value *other)
 {
     size_t i, myi;
 
-    if (!other->life_count)
+    if (!vec_size(other->life))
         return true;
 
-    if (!self->life_count) {
-        for (i = 0; i < other->life_count; ++i) {
-            if (!ir_value_life_add(self, other->life[i]))
-                return false;
-        }
+    if (!vec_size(self->life)) {
+        size_t count = vec_size(other->life);
+        ir_life_entry_t *life = vec_add(self->life, count);
+        memcpy(life, other->life, count * sizeof(*life));
         return true;
     }
 
     myi = 0;
-    for (i = 0; i < other->life_count; ++i)
+    for (i = 0; i < vec_size(other->life); ++i)
     {
         const ir_life_entry_t *life = &other->life[i];
         while (true)
@@ -922,28 +1207,27 @@ bool ir_value_life_merge_into(ir_value *self, const ir_value *other)
             }
 
             if (life->start <  entry->start &&
-                life->end   >= entry->start)
+                life->end+1 >= entry->start)
             {
                 /* starts earlier and overlaps */
                 entry->start = life->start;
             }
 
-            if (life->end     >  entry->end &&
-                life->start-1 <= entry->end)
+            if (life->end   >  entry->end &&
+                life->start <= entry->end+1)
             {
                 /* ends later and overlaps */
                 entry->end = life->end;
             }
 
             /* see if our change combines it with the next ranges */
-            while (myi+1 < self->life_count &&
+            while (myi+1 < vec_size(self->life) &&
                    entry->end+1 >= self->life[1+myi].start)
             {
                 /* overlaps with (myi+1) */
                 if (entry->end < self->life[1+myi].end)
                     entry->end = self->life[1+myi].end;
-                if (!ir_value_life_remove(self, myi+1))
-                    return false;
+                vec_remove(self->life, myi+1, 1);
                 entry = &self->life[myi];
             }
 
@@ -952,9 +1236,8 @@ bool ir_value_life_merge_into(ir_value *self, const ir_value *other)
             {
                 ++myi;
                 /* append if we're at the end */
-                if (myi >= self->life_count) {
-                    if (!ir_value_life_add(self, *life))
-                        return false;
+                if (myi >= vec_size(self->life)) {
+                    vec_push(self->life, *life);
                     break;
                 }
                 /* otherweise check the next range */
@@ -978,13 +1261,13 @@ bool ir_values_overlap(const ir_value *a, const ir_value *b)
     ir_life_entry_t *la, *lb, *enda, *endb;
 
     /* first of all, if either has no life range, they cannot clash */
-    if (!a->life_count || !b->life_count)
+    if (!vec_size(a->life) || !vec_size(b->life))
         return false;
 
     la = a->life;
     lb = b->life;
-    enda = la + a->life_count;
-    endb = lb + b->life_count;
+    enda = la + vec_size(a->life);
+    endb = lb + vec_size(b->life);
     while (true)
     {
         /* check if the entries overlap, for that,
@@ -1024,9 +1307,14 @@ bool ir_values_overlap(const ir_value *a, const ir_value *b)
  *IR main operations
  */
 
-bool ir_block_create_store_op(ir_block *self, int op, ir_value *target, ir_value *what)
+bool ir_block_create_store_op(ir_block *self, lex_ctx ctx, int op, ir_value *target, ir_value *what)
 {
-    ir_instr *in = ir_instr_new(self, op);
+    ir_instr *in;
+    if (self->final) {
+        irerror(self->context, "unreachable statement (%s)", self->label);
+        return false;
+    }
+    in = ir_instr_new(ctx, self, op);
     if (!in)
         return false;
 
@@ -1040,15 +1328,15 @@ bool ir_block_create_store_op(ir_block *self, int op, ir_value *target, ir_value
     }
 
     if (!ir_instr_op(in, 0, target, true) ||
-        !ir_instr_op(in, 1, what, false)  ||
-        !ir_block_instr_add(self, in) )
+        !ir_instr_op(in, 1, what, false))
     {
         return false;
     }
+    vec_push(self->instr, in);
     return true;
 }
 
-bool ir_block_create_store(ir_block *self, ir_value *target, ir_value *what)
+bool ir_block_create_store(ir_block *self, lex_ctx ctx, ir_value *target, ir_value *what)
 {
     int op = 0;
     int vtype;
@@ -1070,10 +1358,10 @@ bool ir_block_create_store(ir_block *self, ir_value *target, ir_value *what)
             op = INSTR_STORE_V;
     }
 
-    return ir_block_create_store_op(self, op, target, what);
+    return ir_block_create_store_op(self, ctx, op, target, what);
 }
 
-bool ir_block_create_storep(ir_block *self, ir_value *target, ir_value *what)
+bool ir_block_create_storep(ir_block *self, lex_ctx ctx, ir_value *target, ir_value *what)
 {
     int op = 0;
     int vtype;
@@ -1092,41 +1380,40 @@ bool ir_block_create_storep(ir_block *self, ir_value *target, ir_value *what)
             op = INSTR_STOREP_V;
     }
 
-    return ir_block_create_store_op(self, op, target, what);
+    return ir_block_create_store_op(self, ctx, op, target, what);
 }
 
-bool ir_block_create_return(ir_block *self, ir_value *v)
+bool ir_block_create_return(ir_block *self, lex_ctx ctx, ir_value *v)
 {
     ir_instr *in;
     if (self->final) {
-        irerror(self->context, "block already ended (%s)", self->label);
+        irerror(self->context, "unreachable statement (%s)", self->label);
         return false;
     }
     self->final = true;
     self->is_return = true;
-    in = ir_instr_new(self, INSTR_RETURN);
+    in = ir_instr_new(ctx, self, INSTR_RETURN);
     if (!in)
         return false;
 
     if (v && !ir_instr_op(in, 0, v, false))
         return false;
 
-    if (!ir_block_instr_add(self, in))
-        return false;
+    vec_push(self->instr, in);
     return true;
 }
 
-bool ir_block_create_if(ir_block *self, ir_value *v,
+bool ir_block_create_if(ir_block *self, lex_ctx ctx, ir_value *v,
                         ir_block *ontrue, ir_block *onfalse)
 {
     ir_instr *in;
     if (self->final) {
-        irerror(self->context, "block already ended (%s)", self->label);
+        irerror(self->context, "unreachable statement (%s)", self->label);
         return false;
     }
     self->final = true;
-    /*in = ir_instr_new(self, (v->vtype == TYPE_STRING ? INSTR_IF_S : INSTR_IF_F));*/
-    in = ir_instr_new(self, VINSTR_COND);
+    /*in = ir_instr_new(ctx, self, (v->vtype == TYPE_STRING ? INSTR_IF_S : INSTR_IF_F));*/
+    in = ir_instr_new(ctx, self, VINSTR_COND);
     if (!in)
         return false;
 
@@ -1138,72 +1425,60 @@ bool ir_block_create_if(ir_block *self, ir_value *v,
     in->bops[0] = ontrue;
     in->bops[1] = onfalse;
 
-    if (!ir_block_instr_add(self, in))
-        return false;
+    vec_push(self->instr, in);
 
-    if (!ir_block_exits_add(self, ontrue)    ||
-        !ir_block_exits_add(self, onfalse)   ||
-        !ir_block_entries_add(ontrue, self)  ||
-        !ir_block_entries_add(onfalse, self) )
-    {
-        return false;
-    }
+    vec_push(self->exits, ontrue);
+    vec_push(self->exits, onfalse);
+    vec_push(ontrue->entries,  self);
+    vec_push(onfalse->entries, self);
     return true;
 }
 
-bool ir_block_create_jump(ir_block *self, ir_block *to)
+bool ir_block_create_jump(ir_block *self, lex_ctx ctx, ir_block *to)
 {
     ir_instr *in;
     if (self->final) {
-        irerror(self->context, "block already ended (%s)", self->label);
+        irerror(self->context, "unreachable statement (%s)", self->label);
         return false;
     }
     self->final = true;
-    in = ir_instr_new(self, VINSTR_JUMP);
+    in = ir_instr_new(ctx, self, VINSTR_JUMP);
     if (!in)
         return false;
 
     in->bops[0] = to;
-    if (!ir_block_instr_add(self, in))
-        return false;
+    vec_push(self->instr, in);
 
-    if (!ir_block_exits_add(self, to) ||
-        !ir_block_entries_add(to, self) )
-    {
-        return false;
-    }
+    vec_push(self->exits, to);
+    vec_push(to->entries, self);
     return true;
 }
 
-bool ir_block_create_goto(ir_block *self, ir_block *to)
+bool ir_block_create_goto(ir_block *self, lex_ctx ctx, ir_block *to)
 {
     ir_instr *in;
     if (self->final) {
-        irerror(self->context, "block already ended (%s)", self->label);
+        irerror(self->context, "unreachable statement (%s)", self->label);
         return false;
     }
     self->final = true;
-    in = ir_instr_new(self, INSTR_GOTO);
+    in = ir_instr_new(ctx, self, INSTR_GOTO);
     if (!in)
         return false;
 
     in->bops[0] = to;
-    if (!ir_block_instr_add(self, in))
-        return false;
+    vec_push(self->instr, in);
 
-    if (!ir_block_exits_add(self, to) ||
-        !ir_block_entries_add(to, self) )
-    {
-        return false;
-    }
+    vec_push(self->exits, to);
+    vec_push(to->entries, self);
     return true;
 }
 
-ir_instr* ir_block_create_phi(ir_block *self, const char *label, int ot)
+ir_instr* ir_block_create_phi(ir_block *self, lex_ctx ctx, const char *label, int ot)
 {
     ir_value *out;
     ir_instr *in;
-    in = ir_instr_new(self, VINSTR_PHI);
+    in = ir_instr_new(ctx, self, VINSTR_PHI);
     if (!in)
         return NULL;
     out = ir_value_out(self->owner, label, store_value, ot);
@@ -1216,11 +1491,7 @@ ir_instr* ir_block_create_phi(ir_block *self, const char *label, int ot)
         ir_value_delete(out);
         return NULL;
     }
-    if (!ir_block_instr_add(self, in)) {
-        ir_instr_delete(in);
-        ir_value_delete(out);
-        return NULL;
-    }
+    vec_push(self->instr, in);
     return in;
 }
 
@@ -1229,11 +1500,11 @@ ir_value* ir_phi_value(ir_instr *self)
     return self->_ops[0];
 }
 
-bool ir_phi_add(ir_instr* self, ir_block *b, ir_value *v)
+void ir_phi_add(ir_instr* self, ir_block *b, ir_value *v)
 {
     ir_phi_entry_t pe;
 
-    if (!ir_block_entries_find(self->owner, b, NULL)) {
+    if (!vec_ir_block_find(self->owner->entries, b, NULL)) {
         /* Must not be possible to cause this, otherwise the AST
          * is doing something wrong.
          */
@@ -1243,17 +1514,16 @@ bool ir_phi_add(ir_instr* self, ir_block *b, ir_value *v)
 
     pe.value = v;
     pe.from = b;
-    if (!ir_value_reads_add(v, self))
-        return false;
-    return ir_instr_phi_add(self, pe);
+    vec_push(v->reads, self);
+    vec_push(self->phi, pe);
 }
 
 /* call related code */
-ir_instr* ir_block_create_call(ir_block *self, const char *label, ir_value *func)
+ir_instr* ir_block_create_call(ir_block *self, lex_ctx ctx, const char *label, ir_value *func)
 {
     ir_value *out;
     ir_instr *in;
-    in = ir_instr_new(self, INSTR_CALL0);
+    in = ir_instr_new(ctx, self, INSTR_CALL0);
     if (!in)
         return NULL;
     out = ir_value_out(self->owner, label, (func->outtype == TYPE_VOID) ? store_return : store_value, func->outtype);
@@ -1262,13 +1532,13 @@ ir_instr* ir_block_create_call(ir_block *self, const char *label, ir_value *func
         return NULL;
     }
     if (!ir_instr_op(in, 0, out, true) ||
-        !ir_instr_op(in, 1, func, false) ||
-        !ir_block_instr_add(self, in))
+        !ir_instr_op(in, 1, func, false))
     {
         ir_instr_delete(in);
         ir_value_delete(out);
         return NULL;
     }
+    vec_push(self->instr, in);
     return in;
 }
 
@@ -1277,21 +1547,15 @@ ir_value* ir_call_value(ir_instr *self)
     return self->_ops[0];
 }
 
-bool ir_call_param(ir_instr* self, ir_value *v)
+void ir_call_param(ir_instr* self, ir_value *v)
 {
-    if (!ir_instr_params_add(self, v))
-        return false;
-    if (!ir_value_reads_add(v, self)) {
-        if (!ir_instr_params_remove(self, self->params_count-1))
-            GMQCC_SUPPRESS_EMPTY_BODY;
-        return false;
-    }
-    return true;
+    vec_push(self->params, v);
+    vec_push(v->reads, self);
 }
 
 /* binary op related code */
 
-ir_value* ir_block_create_binop(ir_block *self,
+ir_value* ir_block_create_binop(ir_block *self, lex_ctx ctx,
                                 const char *label, int opcode,
                                 ir_value *left, ir_value *right)
 {
@@ -1380,10 +1644,10 @@ ir_value* ir_block_create_binop(ir_block *self,
         return NULL;
     }
 
-    return ir_block_create_general_instr(self, label, opcode, left, right, ot);
+    return ir_block_create_general_instr(self, ctx, label, opcode, left, right, ot);
 }
 
-ir_value* ir_block_create_unary(ir_block *self,
+ir_value* ir_block_create_unary(ir_block *self, lex_ctx ctx,
                                 const char *label, int opcode,
                                 ir_value *operand)
 {
@@ -1413,10 +1677,10 @@ ir_value* ir_block_create_unary(ir_block *self,
     }
 
     /* let's use the general instruction creator and pass NULL for OPB */
-    return ir_block_create_general_instr(self, label, opcode, operand, NULL, ot);
+    return ir_block_create_general_instr(self, ctx, label, opcode, operand, NULL, ot);
 }
 
-ir_value* ir_block_create_general_instr(ir_block *self, const char *label,
+ir_value* ir_block_create_general_instr(ir_block *self, lex_ctx ctx, const char *label,
                                         int op, ir_value *a, ir_value *b, int outype)
 {
     ir_instr *instr;
@@ -1426,7 +1690,7 @@ ir_value* ir_block_create_general_instr(ir_block *self, const char *label,
     if (!out)
         return NULL;
 
-    instr = ir_instr_new(self, op);
+    instr = ir_instr_new(ctx, self, op);
     if (!instr) {
         ir_value_delete(out);
         return NULL;
@@ -1439,8 +1703,7 @@ ir_value* ir_block_create_general_instr(ir_block *self, const char *label,
         goto on_error;
     }
 
-    if (!ir_block_instr_add(self, instr))
-        goto on_error;
+    vec_push(self->instr, instr);
 
     return out;
 on_error:
@@ -1449,7 +1712,7 @@ on_error:
     return NULL;
 }
 
-ir_value* ir_block_create_fieldaddress(ir_block *self, const char *label, ir_value *ent, ir_value *field)
+ir_value* ir_block_create_fieldaddress(ir_block *self, lex_ctx ctx, const char *label, ir_value *ent, ir_value *field)
 {
     ir_value *v;
 
@@ -1460,12 +1723,12 @@ ir_value* ir_block_create_fieldaddress(ir_block *self, const char *label, ir_val
     if (field->vtype != TYPE_FIELD)
         return NULL;
 
-    v = ir_block_create_general_instr(self, label, INSTR_ADDRESS, ent, field, TYPE_POINTER);
+    v = ir_block_create_general_instr(self, ctx, label, INSTR_ADDRESS, ent, field, TYPE_POINTER);
     v->fieldtype = field->fieldtype;
     return v;
 }
 
-ir_value* ir_block_create_load_from_ent(ir_block *self, const char *label, ir_value *ent, ir_value *field, int outype)
+ir_value* ir_block_create_load_from_ent(ir_block *self, lex_ctx ctx, const char *label, ir_value *ent, ir_value *field, int outype)
 {
     int op;
     if (ent->vtype != TYPE_ENTITY)
@@ -1488,13 +1751,14 @@ ir_value* ir_block_create_load_from_ent(ir_block *self, const char *label, ir_va
         case TYPE_INTEGER: op = INSTR_LOAD_I;   break;
 #endif
         default:
+            irerror(self->context, "invalid type for ir_block_create_load_from_ent: %s", type_name[outype]);
             return NULL;
     }
 
-    return ir_block_create_general_instr(self, label, op, ent, field, outype);
+    return ir_block_create_general_instr(self, ctx, label, op, ent, field, outype);
 }
 
-ir_value* ir_block_create_add(ir_block *self,
+ir_value* ir_block_create_add(ir_block *self, lex_ctx ctx,
                               const char *label,
                               ir_value *left, ir_value *right)
 {
@@ -1504,6 +1768,7 @@ ir_value* ir_block_create_add(ir_block *self,
     if (l == r) {
         switch (l) {
             default:
+                irerror(self->context, "invalid type for ir_block_create_add: %s", type_name[l]);
                 return NULL;
             case TYPE_FLOAT:
                 op = INSTR_ADD_F;
@@ -1525,12 +1790,15 @@ ir_value* ir_block_create_add(ir_block *self,
             op = INSTR_ADD_IF;
         else
 #endif
+        {
+            irerror(self->context, "invalid type for ir_block_create_add: %s", type_name[l]);
             return NULL;
+        }
     }
-    return ir_block_create_binop(self, label, op, left, right);
+    return ir_block_create_binop(self, ctx, label, op, left, right);
 }
 
-ir_value* ir_block_create_sub(ir_block *self,
+ir_value* ir_block_create_sub(ir_block *self, lex_ctx ctx,
                               const char *label,
                               ir_value *left, ir_value *right)
 {
@@ -1541,6 +1809,7 @@ ir_value* ir_block_create_sub(ir_block *self,
 
         switch (l) {
             default:
+                irerror(self->context, "invalid type for ir_block_create_sub: %s", type_name[l]);
                 return NULL;
             case TYPE_FLOAT:
                 op = INSTR_SUB_F;
@@ -1562,12 +1831,15 @@ ir_value* ir_block_create_sub(ir_block *self,
             op = INSTR_SUB_IF;
         else
 #endif
+        {
+            irerror(self->context, "invalid type for ir_block_create_sub: %s", type_name[l]);
             return NULL;
+        }
     }
-    return ir_block_create_binop(self, label, op, left, right);
+    return ir_block_create_binop(self, ctx, label, op, left, right);
 }
 
-ir_value* ir_block_create_mul(ir_block *self,
+ir_value* ir_block_create_mul(ir_block *self, lex_ctx ctx,
                               const char *label,
                               ir_value *left, ir_value *right)
 {
@@ -1578,6 +1850,7 @@ ir_value* ir_block_create_mul(ir_block *self,
 
         switch (l) {
             default:
+                irerror(self->context, "invalid type for ir_block_create_mul: %s", type_name[l]);
                 return NULL;
             case TYPE_FLOAT:
                 op = INSTR_MUL_F;
@@ -1606,13 +1879,15 @@ ir_value* ir_block_create_mul(ir_block *self,
         else if ( (l == TYPE_INTEGER && r == TYPE_FLOAT) )
             op = INSTR_MUL_IF;
 #endif
-        else
+        else {
+            irerror(self->context, "invalid type for ir_block_create_mul: %s", type_name[l]);
             return NULL;
+        }
     }
-    return ir_block_create_binop(self, label, op, left, right);
+    return ir_block_create_binop(self, ctx, label, op, left, right);
 }
 
-ir_value* ir_block_create_div(ir_block *self,
+ir_value* ir_block_create_div(ir_block *self, lex_ctx ctx,
                               const char *label,
                               ir_value *left, ir_value *right)
 {
@@ -1623,6 +1898,7 @@ ir_value* ir_block_create_div(ir_block *self,
 
         switch (l) {
             default:
+                irerror(self->context, "invalid type for ir_block_create_div: %s", type_name[l]);
                 return NULL;
             case TYPE_FLOAT:
                 op = INSTR_DIV_F;
@@ -1643,9 +1919,12 @@ ir_value* ir_block_create_div(ir_block *self,
             op = INSTR_DIV_IF;
         else
 #endif
+        {
+            irerror(self->context, "invalid type for ir_block_create_div: %s", type_name[l]);
             return NULL;
+        }
     }
-    return ir_block_create_binop(self, label, op, left, right);
+    return ir_block_create_binop(self, ctx, label, op, left, right);
 }
 
 /* PHI resolving breaks the SSA, and must thus be the last
@@ -1657,7 +1936,7 @@ bool ir_function_naive_phi(ir_function *self)
 {
     size_t i;
 
-    for (i = 0; i < self->blocks_count; ++i)
+    for (i = 0; i < vec_size(self->blocks); ++i)
     {
         if (!ir_block_naive_phi(self->blocks[i]))
             return false;
@@ -1665,6 +1944,7 @@ bool ir_function_naive_phi(ir_function *self)
     return true;
 }
 
+#if 0
 static bool ir_naive_phi_emit_store(ir_block *block, size_t iid, ir_value *old, ir_value *what)
 {
     ir_instr *instr;
@@ -1675,35 +1955,61 @@ static bool ir_naive_phi_emit_store(ir_block *block, size_t iid, ir_value *old,
         return false;
 
     /* we now move it up */
-    instr = block->instr[block->instr_count-1];
-    for (i = block->instr_count; i > iid; --i)
+    instr = vec_last(block->instr);
+    for (i = vec_size(block->instr)-1; i > iid; --i)
         block->instr[i] = block->instr[i-1];
     block->instr[i] = instr;
 
     return true;
 }
+#endif
 
 static bool ir_block_naive_phi(ir_block *self)
 {
-    size_t i, p, w;
+    size_t i, p; /*, w;*/
     /* FIXME: optionally, create_phi can add the phis
      * to a list so we don't need to loop through blocks
      * - anyway: "don't optimize YET"
      */
-    for (i = 0; i < self->instr_count; ++i)
+    for (i = 0; i < vec_size(self->instr); ++i)
     {
         ir_instr *instr = self->instr[i];
         if (instr->opcode != VINSTR_PHI)
             continue;
 
-        if (!ir_block_instr_remove(self, i))
-            return false;
+        vec_remove(self->instr, i, 1);
         --i; /* NOTE: i+1 below */
 
-        for (p = 0; p < instr->phi_count; ++p)
+        for (p = 0; p < vec_size(instr->phi); ++p)
         {
             ir_value *v = instr->phi[p].value;
-            for (w = 0; w < v->writes_count; ++w) {
+            ir_block *b = instr->phi[p].from;
+
+            if (v->store == store_value &&
+                vec_size(v->reads) == 1 &&
+                vec_size(v->writes) == 1)
+            {
+                /* replace the value */
+                if (!ir_instr_op(v->writes[0], 0, instr->_ops[0], true))
+                    return false;
+            }
+            else
+            {
+                /* force a move instruction */
+                ir_instr *prevjump = vec_last(b->instr);
+                vec_pop(b->instr);
+                b->final = false;
+                instr->_ops[0]->store = store_global;
+                if (!ir_block_create_store(b, instr->context, instr->_ops[0], v))
+                    return false;
+                instr->_ops[0]->store = store_value;
+                vec_push(b->instr, prevjump);
+                b->final = true;
+            }
+
+#if 0
+            ir_value *v = instr->phi[p].value;
+            for (w = 0; w < vec_size(v->writes); ++w) {
                 ir_value *old;
 
                 if (!v->writes[w]->_ops[0])
@@ -1723,7 +2029,7 @@ static bool ir_block_naive_phi(ir_block *self)
                      */
                     if (!ir_naive_phi_emit_store(self, i+1, old, v))
                         return false;
-                    if (i+1 < self->instr_count)
+                    if (i+1 < vec_size(self->instr))
                         instr = self->instr[i+1];
                     else
                         instr = NULL;
@@ -1736,11 +2042,11 @@ static bool ir_block_naive_phi(ir_block *self)
                 {
                     /* If it didn't, we can replace all reads by the phi target now. */
                     size_t r;
-                    for (r = 0; r < old->reads_count; ++r)
+                    for (r = 0; r < vec_size(old->reads); ++r)
                     {
                         size_t op;
                         ir_instr *ri = old->reads[r];
-                        for (op = 0; op < ri->phi_count; ++op) {
+                        for (op = 0; op < vec_size(ri->phi); ++op) {
                             if (ri->phi[op].value == old)
                                 ri->phi[op].value = v;
                         }
@@ -1751,6 +2057,7 @@ static bool ir_block_naive_phi(ir_block *self)
                     }
                 }
             }
+#endif
         }
         ir_instr_delete(instr);
     }
@@ -1766,21 +2073,13 @@ static bool ir_block_naive_phi(ir_block *self)
  * Though this implementation might run an additional time for if nests.
  */
 
-typedef struct
-{
-    ir_value* *v;
-    size_t    v_count;
-    size_t    v_alloc;
-} new_reads_t;
-MEM_VEC_FUNCTIONS_ALL(new_reads_t, ir_value*, v)
-
 /* Enumerate instructions used by value's life-ranges
  */
 static void ir_block_enumerate(ir_block *self, size_t *_eid)
 {
     size_t i;
     size_t eid = *_eid;
-    for (i = 0; i < self->instr_count; ++i)
+    for (i = 0; i < vec_size(self->instr); ++i)
     {
         self->instr[i]->eid = eid++;
     }
@@ -1796,7 +2095,7 @@ void ir_function_enumerate(ir_function *self)
 {
     size_t i;
     size_t instruction_id = 0;
-    for (i = 0; i < self->blocks_count; ++i)
+    for (i = 0; i < vec_size(self->blocks); ++i)
     {
         self->blocks[i]->eid = i;
         self->blocks[i]->run_id = 0;
@@ -1813,18 +2112,19 @@ bool ir_function_calculate_liferanges(ir_function *self)
     do {
         self->run_id++;
         changed = false;
-        for (i = 0; i != self->blocks_count; ++i)
+        for (i = 0; i != vec_size(self->blocks); ++i)
         {
             if (self->blocks[i]->is_return)
             {
+                vec_free(self->blocks[i]->living);
                 if (!ir_block_life_propagate(self->blocks[i], NULL, &changed))
                     return false;
             }
         }
     } while (changed);
-    if (self->blocks_count) {
+    if (vec_size(self->blocks)) {
         ir_block *block = self->blocks[0];
-        for (i = 0; i < block->living_count; ++i) {
+        for (i = 0; i < vec_size(block->living); ++i) {
             ir_value *v = block->living[i];
             if (v->memberof || v->store != store_local)
                 continue;
@@ -1844,13 +2144,11 @@ bool ir_function_calculate_liferanges(ir_function *self)
  * This is the counterpart to register-allocation in register machines.
  */
 typedef struct {
-    MEM_VECTOR_MAKE(ir_value*, locals);
-    MEM_VECTOR_MAKE(size_t,    sizes);
-    MEM_VECTOR_MAKE(size_t,    positions);
+    ir_value **locals;
+    size_t    *sizes;
+    size_t    *positions;
+    bool      *unique;
 } function_allocator;
-MEM_VEC_FUNCTIONS(function_allocator, ir_value*, locals)
-MEM_VEC_FUNCTIONS(function_allocator, size_t,    sizes)
-MEM_VEC_FUNCTIONS(function_allocator, size_t,    positions)
 
 static bool function_allocator_alloc(function_allocator *alloc, const ir_value *var)
 {
@@ -1864,11 +2162,9 @@ static bool function_allocator_alloc(function_allocator *alloc, const ir_value *
     if (!ir_value_life_merge_into(slot, var))
         goto localerror;
 
-    if (!function_allocator_locals_add(alloc, slot))
-        goto localerror;
-
-    if (!function_allocator_sizes_add(alloc, vsize))
-        goto localerror;
+    vec_push(alloc->locals, slot);
+    vec_push(alloc->sizes, vsize);
+    vec_push(alloc->unique, var->unique_life);
 
     return true;
 
@@ -1888,31 +2184,47 @@ bool ir_function_allocate_locals(ir_function *self)
 
     function_allocator alloc;
 
-    if (!self->locals_count && !self->values_count)
+    if (!vec_size(self->locals) && !vec_size(self->values))
         return true;
 
-    MEM_VECTOR_INIT(&alloc, locals);
-    MEM_VECTOR_INIT(&alloc, sizes);
-    MEM_VECTOR_INIT(&alloc, positions);
+    alloc.locals    = NULL;
+    alloc.sizes     = NULL;
+    alloc.positions = NULL;
+    alloc.unique    = NULL;
 
-    for (i = 0; i < self->locals_count; ++i)
+    for (i = 0; i < vec_size(self->locals); ++i)
     {
+        if (!OPTS_OPTIMIZATION(OPTIM_LOCALTEMPS))
+            self->locals[i]->unique_life = true;
         if (!function_allocator_alloc(&alloc, self->locals[i]))
             goto error;
     }
 
     /* Allocate a slot for any value that still exists */
-    for (i = 0; i < self->values_count; ++i)
+    for (i = 0; i < vec_size(self->values); ++i)
     {
         v = self->values[i];
 
-        if (!v->life_count)
+        if (!vec_size(v->life))
             continue;
 
-        for (a = 0; a < alloc.locals_count; ++a)
+        for (a = 0; a < vec_size(alloc.locals); ++a)
         {
+            /* if it's reserved for a unique liferange: skip */
+            if (alloc.unique[a])
+                continue;
+
             slot = alloc.locals[a];
 
+            /* never resize parameters
+             * will be required later when overlapping temps + locals
+             */
+            if (a < vec_size(self->params) &&
+                alloc.sizes[a] < type_sizeof[v->vtype])
+            {
+                continue;
+            }
+
             if (ir_values_overlap(v, slot))
                 continue;
 
@@ -1926,8 +2238,8 @@ bool ir_function_allocate_locals(ir_function *self)
             self->values[i]->code.local = a;
             break;
         }
-        if (a >= alloc.locals_count) {
-            self->values[i]->code.local = alloc.locals_count;
+        if (a >= vec_size(alloc.locals)) {
+            self->values[i]->code.local = vec_size(alloc.locals);
             if (!function_allocator_alloc(&alloc, v))
                 goto error;
         }
@@ -1938,24 +2250,26 @@ bool ir_function_allocate_locals(ir_function *self)
     }
 
     /* Adjust slot positions based on sizes */
-    if (!function_allocator_positions_add(&alloc, 0))
-        goto error;
+    vec_push(alloc.positions, 0);
 
-    if (alloc.sizes_count)
+    if (vec_size(alloc.sizes))
         pos = alloc.positions[0] + alloc.sizes[0];
     else
         pos = 0;
-    for (i = 1; i < alloc.sizes_count; ++i)
+    for (i = 1; i < vec_size(alloc.sizes); ++i)
     {
         pos = alloc.positions[i-1] + alloc.sizes[i-1];
-        if (!function_allocator_positions_add(&alloc, pos))
-            goto error;
+        vec_push(alloc.positions, pos);
     }
 
-    self->allocated_locals = pos + alloc.sizes[alloc.sizes_count-1];
+    self->allocated_locals = pos + vec_last(alloc.sizes);
 
-    /* Take over the actual slot positions */
-    for (i = 0; i < self->values_count; ++i) {
+    /* Locals need to know their new position */
+    for (i = 0; i < vec_size(self->locals); ++i) {
+        self->locals[i]->code.local = alloc.positions[i];
+    }
+    /* Take over the actual slot positions on values */
+    for (i = 0; i < vec_size(self->values); ++i) {
         self->values[i]->code.local = alloc.positions[self->values[i]->code.local];
     }
 
@@ -1964,11 +2278,11 @@ bool ir_function_allocate_locals(ir_function *self)
 error:
     retval = false;
 cleanup:
-    for (i = 0; i < alloc.locals_count; ++i)
+    for (i = 0; i < vec_size(alloc.locals); ++i)
         ir_value_delete(alloc.locals[i]);
-    MEM_VECTOR_CLEAR(&alloc, locals);
-    MEM_VECTOR_CLEAR(&alloc, sizes);
-    MEM_VECTOR_CLEAR(&alloc, positions);
+    vec_free(alloc.locals);
+    vec_free(alloc.sizes);
+    vec_free(alloc.positions);
     return retval;
 }
 
@@ -2016,7 +2330,7 @@ static bool ir_block_living_add_instr(ir_block *self, size_t eid)
     size_t i;
     bool changed = false;
     bool tempbool;
-    for (i = 0; i != self->living_count; ++i)
+    for (i = 0; i != vec_size(self->living); ++i)
     {
         tempbool = ir_value_life_merge(self->living[i], eid);
         /* debug
@@ -2031,30 +2345,31 @@ static bool ir_block_living_add_instr(ir_block *self, size_t eid)
 static bool ir_block_life_prop_previous(ir_block* self, ir_block *prev, bool *changed)
 {
     size_t i;
+
+    (void)changed;
+
     /* values which have been read in a previous iteration are now
      * in the "living" array even if the previous block doesn't use them.
      * So we have to remove whatever does not exist in the previous block.
      * They will be re-added on-read, but the liferange merge won't cause
      * a change.
-     */
-    for (i = 0; i < self->living_count; ++i)
+    for (i = 0; i < vec_size(self->living); ++i)
     {
-        if (!ir_block_living_find(prev, self->living[i], NULL)) {
-            if (!ir_block_living_remove(self, i))
-                return false;
+        if (!vec_ir_value_find(prev->living, self->living[i], NULL)) {
+            vec_remove(self->living, i, 1);
             --i;
         }
     }
+     */
 
     /* Whatever the previous block still has in its living set
      * must now be added to ours as well.
      */
-    for (i = 0; i < prev->living_count; ++i)
+    for (i = 0; i < vec_size(prev->living); ++i)
     {
-        if (ir_block_living_find(self, prev->living[i], NULL))
+        if (vec_ir_value_find(self->living, prev->living[i], NULL))
             continue;
-        if (!ir_block_living_add(self, prev->living[i]))
-            return false;
+        vec_push(self->living, prev->living[i]);
         /*
         irerror(self->contextt from prev: %s", self->label, prev->living[i]->_name);
         */
@@ -2079,40 +2394,47 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change
             return false;
     }
 
-    i = self->instr_count;
+    i = vec_size(self->instr);
     while (i)
     { --i;
         instr = self->instr[i];
 
         /* PHI operands are always read operands */
-        for (p = 0; p < instr->phi_count; ++p)
+        for (p = 0; p < vec_size(instr->phi); ++p)
         {
             value = instr->phi[p].value;
             if (value->memberof)
                 value = value->memberof;
-            if (!ir_block_living_find(self, value, NULL) &&
-                !ir_block_living_add(self, value))
-            {
-                return false;
-            }
+            if (!vec_ir_value_find(self->living, value, NULL))
+                vec_push(self->living, value);
         }
 
         /* call params are read operands too */
-        for (p = 0; p < instr->params_count; ++p)
+        for (p = 0; p < vec_size(instr->params); ++p)
         {
             value = instr->params[p];
             if (value->memberof)
                 value = value->memberof;
-            if (!ir_block_living_find(self, value, NULL) &&
-                !ir_block_living_add(self, value))
-            {
-                return false;
-            }
+            if (!vec_ir_value_find(self->living, value, NULL))
+                vec_push(self->living, value);
         }
 
         /* See which operands are read and write operands */
         ir_op_read_write(instr->opcode, &read, &write);
 
+        if (instr->opcode == INSTR_MUL_VF)
+        {
+            /* the float source will get an additional lifetime */
+            tempbool = ir_value_life_merge(instr->_ops[2], instr->eid+1);
+            *changed = *changed || tempbool;
+        }
+        else if (instr->opcode == INSTR_MUL_FV)
+        {
+            /* the float source will get an additional lifetime */
+            tempbool = ir_value_life_merge(instr->_ops[1], instr->eid+1);
+            *changed = *changed || tempbool;
+        }
+
         /* Go through the 3 main operands */
         for (o = 0; o < 3; ++o)
         {
@@ -2134,11 +2456,8 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change
             /* read operands */
             if (read & (1<<o))
             {
-                if (!ir_block_living_find(self, value, NULL) &&
-                    !ir_block_living_add(self, value))
-                {
-                    return false;
-                }
+                if (!vec_ir_value_find(self->living, value, NULL))
+                    vec_push(self->living, value);
             }
 
             /* write operands */
@@ -2149,7 +2468,7 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change
             if (write & (1<<o))
             {
                 size_t idx;
-                bool in_living = ir_block_living_find(self, value, &idx);
+                bool in_living = vec_ir_value_find(self->living, value, &idx);
                 if (!in_living)
                 {
                     /* If the value isn't alive it hasn't been read before... */
@@ -2160,7 +2479,7 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change
                      * since this function is run multiple times.
                      */
                     /* For now: debug info: */
-                    /* fprintf(stderr, "Value only written %s\n", value->name); */
+                    /* con_err( "Value only written %s\n", value->name); */
                     tempbool = ir_value_life_merge(value, instr->eid);
                     *changed = *changed || tempbool;
                     /*
@@ -2175,18 +2494,17 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change
                     tempbool = ir_value_life_merge(value, instr->eid);
                     /*
                     if (tempbool)
-                        fprintf(stderr, "value added id %s %i\n", value->name, (int)instr->eid);
+                        con_err( "value added id %s %i\n", value->name, (int)instr->eid);
                     */
                     *changed = *changed || tempbool;
                     /* Then remove */
-                    if (!ir_block_living_remove(self, idx))
-                        return false;
+                    vec_remove(self->living, idx, 1);
                 }
             }
         }
         /* (A) */
         tempbool = ir_block_living_add_instr(self, instr->eid);
-        /*fprintf(stderr, "living added values\n");*/
+        /*con_err( "living added values\n");*/
         *changed = *changed || tempbool;
 
     }
@@ -2196,7 +2514,7 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change
 
     self->run_id = self->owner->run_id;
 
-    for (i = 0; i < self->entries_count; ++i)
+    for (i = 0; i < vec_size(self->entries); ++i)
     {
         ir_block *entry = self->entries[i];
         ir_block_life_propagate(entry, self, changed);
@@ -2220,11 +2538,11 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change
  *
  * Breaking conventions is annoying...
  */
-static bool ir_builder_gen_global(ir_builder *self, ir_value *global);
+static bool ir_builder_gen_global(ir_builder *self, ir_value *global, bool islocal);
 
 static bool gen_global_field(ir_value *global)
 {
-    if (global->isconst)
+    if (global->hasvalue)
     {
         ir_value *fld = global->constval.vpointer;
         if (!fld) {
@@ -2232,32 +2550,21 @@ static bool gen_global_field(ir_value *global)
             return false;
         }
 
-        /* Now, in this case, a relocation would be impossible to code
-         * since it looks like this:
-         * .vector v = origin;     <- parse error, wtf is 'origin'?
-         * .vector origin;
-         *
-         * But we will need a general relocation support later anyway
-         * for functions... might as well support that here.
-         */
-        if (!fld->code.globaladdr) {
-            irerror(global->context, "FIXME: Relocation support");
-            return false;
-        }
-
         /* copy the field's value */
-        ir_value_code_setaddr(global, code_globals_add(code_globals_data[fld->code.globaladdr]));
+        ir_value_code_setaddr(global, vec_size(code_globals));
+        vec_push(code_globals, fld->code.fieldaddr);
         if (global->fieldtype == TYPE_VECTOR) {
-            code_globals_add(code_globals_data[fld->code.globaladdr]+1);
-            code_globals_add(code_globals_data[fld->code.globaladdr]+2);
+            vec_push(code_globals, fld->code.fieldaddr+1);
+            vec_push(code_globals, fld->code.fieldaddr+2);
         }
     }
     else
     {
-        ir_value_code_setaddr(global, code_globals_add(0));
+        ir_value_code_setaddr(global, vec_size(code_globals));
+        vec_push(code_globals, 0);
         if (global->fieldtype == TYPE_VECTOR) {
-            code_globals_add(0);
-            code_globals_add(0);
+            vec_push(code_globals, 0);
+            vec_push(code_globals, 0);
         }
     }
     if (global->code.globaladdr < 0)
@@ -2267,7 +2574,7 @@ static bool gen_global_field(ir_value *global)
 
 static bool gen_global_pointer(ir_value *global)
 {
-    if (global->isconst)
+    if (global->hasvalue)
     {
         ir_value *target = global->constval.vpointer;
         if (!target) {
@@ -2291,11 +2598,13 @@ static bool gen_global_pointer(ir_value *global)
             return false;
         }
 
-        ir_value_code_setaddr(global, code_globals_add(target->code.globaladdr));
+        ir_value_code_setaddr(global, vec_size(code_globals));
+        vec_push(code_globals, target->code.globaladdr);
     }
     else
     {
-        ir_value_code_setaddr(global, code_globals_add(0));
+        ir_value_code_setaddr(global, vec_size(code_globals));
+        vec_push(code_globals, 0);
     }
     if (global->code.globaladdr < 0)
         return false;
@@ -2314,8 +2623,8 @@ static bool gen_blocks_recursive(ir_function *func, ir_block *block)
 
 tailcall:
     block->generated = true;
-    block->code_start = code_statements_elements;
-    for (i = 0; i < block->instr_count; ++i)
+    block->code_start = vec_size(code_statements);
+    for (i = 0; i < vec_size(block->instr); ++i)
     {
         instr = block->instr[i];
 
@@ -2336,11 +2645,10 @@ tailcall:
 
             /* otherwise we generate a jump instruction */
             stmt.opcode = INSTR_GOTO;
-            stmt.o1.s1 = (target->code_start) - code_statements_elements;
+            stmt.o1.s1 = (target->code_start) - vec_size(code_statements);
             stmt.o2.s1 = 0;
             stmt.o3.s1 = 0;
-            if (code_statements_add(stmt) < 0)
-                return false;
+            code_push_statement(&stmt, instr->context.line);
 
             /* no further instructions can be in this block */
             return true;
@@ -2359,15 +2667,13 @@ tailcall:
 
             if (ontrue->generated) {
                 stmt.opcode = INSTR_IF;
-                stmt.o2.s1 = (ontrue->code_start) - code_statements_elements;
-                if (code_statements_add(stmt) < 0)
-                    return false;
+                stmt.o2.s1 = (ontrue->code_start) - vec_size(code_statements);
+                code_push_statement(&stmt, instr->context.line);
             }
             if (onfalse->generated) {
                 stmt.opcode = INSTR_IFNOT;
-                stmt.o2.s1 = (onfalse->code_start) - code_statements_elements;
-                if (code_statements_add(stmt) < 0)
-                    return false;
+                stmt.o2.s1 = (onfalse->code_start) - vec_size(code_statements);
+                code_push_statement(&stmt, instr->context.line);
             }
             if (!ontrue->generated) {
                 if (onfalse->generated) {
@@ -2383,24 +2689,41 @@ tailcall:
             }
             /* neither ontrue nor onfalse exist */
             stmt.opcode = INSTR_IFNOT;
-            stidx = code_statements_elements;
-            if (code_statements_add(stmt) < 0)
-                return false;
+            if (!instr->likely) {
+                /* Honor the likelyhood hint */
+                ir_block *tmp = onfalse;
+                stmt.opcode = INSTR_IF;
+                onfalse = ontrue;
+                ontrue = tmp;
+            }
+            stidx = vec_size(code_statements);
+            code_push_statement(&stmt, instr->context.line);
             /* on false we jump, so add ontrue-path */
             if (!gen_blocks_recursive(func, ontrue))
                 return false;
             /* fixup the jump address */
-            code_statements_data[stidx].o2.s1 = code_statements_elements - stidx;
+            code_statements[stidx].o2.s1 = vec_size(code_statements) - stidx;
             /* generate onfalse path */
             if (onfalse->generated) {
                 /* fixup the jump address */
-                code_statements_data[stidx].o2.s1 = (onfalse->code_start) - (stidx);
+                code_statements[stidx].o2.s1 = (onfalse->code_start) - (stidx);
+                stmt.opcode = vec_last(code_statements).opcode;
+                if (stmt.opcode == INSTR_GOTO ||
+                    stmt.opcode == INSTR_IF ||
+                    stmt.opcode == INSTR_IFNOT ||
+                    stmt.opcode == INSTR_RETURN ||
+                    stmt.opcode == INSTR_DONE)
+                {
+                    /* no use jumping from here */
+                    return true;
+                }
                 /* may have been generated in the previous recursive call */
                 stmt.opcode = INSTR_GOTO;
-                stmt.o1.s1 = (onfalse->code_start) - code_statements_elements;
+                stmt.o1.s1 = (onfalse->code_start) - vec_size(code_statements);
                 stmt.o2.s1 = 0;
                 stmt.o3.s1 = 0;
-                return (code_statements_add(stmt) >= 0);
+                code_push_statement(&stmt, instr->context.line);
+                return true;
             }
             /* if not, generate now */
             block = onfalse;
@@ -2421,41 +2744,72 @@ tailcall:
              *      generation already. This would even include later
              *      reuse.... probably... :)
              */
-            size_t p;
+            size_t p, first;
             ir_value *retvalue;
 
-            for (p = 0; p < instr->params_count; ++p)
+            first = vec_size(instr->params);
+            if (first > 8)
+                first = 8;
+            for (p = 0; p < first; ++p)
             {
                 ir_value *param = instr->params[p];
 
                 stmt.opcode = INSTR_STORE_F;
                 stmt.o3.u1 = 0;
 
-                stmt.opcode = type_store_instr[param->vtype];
+                if (param->vtype == TYPE_FIELD)
+                    stmt.opcode = field_store_instr[param->fieldtype];
+                else
+                    stmt.opcode = type_store_instr[param->vtype];
                 stmt.o1.u1 = ir_value_code_addr(param);
                 stmt.o2.u1 = OFS_PARM0 + 3 * p;
-                if (code_statements_add(stmt) < 0)
-                    return false;
+                code_push_statement(&stmt, instr->context.line);
             }
-            stmt.opcode = INSTR_CALL0 + instr->params_count;
+            /* Now handle extparams */
+            first = vec_size(instr->params);
+            for (; p < first; ++p)
+            {
+                ir_builder *ir = func->owner;
+                ir_value *param = instr->params[p];
+                ir_value *targetparam;
+
+                if (p-8 >= vec_size(ir->extparams))
+                    ir_gen_extparam(ir);
+
+                targetparam = ir->extparams[p-8];
+
+                stmt.opcode = INSTR_STORE_F;
+                stmt.o3.u1 = 0;
+
+                if (param->vtype == TYPE_FIELD)
+                    stmt.opcode = field_store_instr[param->fieldtype];
+                else
+                    stmt.opcode = type_store_instr[param->vtype];
+                stmt.o1.u1 = ir_value_code_addr(param);
+                stmt.o2.u1 = ir_value_code_addr(targetparam);
+                code_push_statement(&stmt, instr->context.line);
+            }
+
+            stmt.opcode = INSTR_CALL0 + vec_size(instr->params);
             if (stmt.opcode > INSTR_CALL8)
                 stmt.opcode = INSTR_CALL8;
             stmt.o1.u1 = ir_value_code_addr(instr->_ops[1]);
             stmt.o2.u1 = 0;
             stmt.o3.u1 = 0;
-            if (code_statements_add(stmt) < 0)
-                return false;
+            code_push_statement(&stmt, instr->context.line);
 
             retvalue = instr->_ops[0];
-            if (retvalue && retvalue->store != store_return && retvalue->life_count)
+            if (retvalue && retvalue->store != store_return && vec_size(retvalue->life))
             {
                 /* not to be kept in OFS_RETURN */
-                stmt.opcode = type_store_instr[retvalue->vtype];
+                if (retvalue->vtype == TYPE_FIELD)
+                    stmt.opcode = field_store_instr[retvalue->vtype];
+                else
+                    stmt.opcode = type_store_instr[retvalue->vtype];
                 stmt.o1.u1 = OFS_RETURN;
                 stmt.o2.u1 = ir_value_code_addr(retvalue);
                 stmt.o3.u1 = 0;
-                if (code_statements_add(stmt) < 0)
-                    return false;
+                code_push_statement(&stmt, instr->context.line);
             }
             continue;
         }
@@ -2493,10 +2847,19 @@ tailcall:
             /* 2-operand instructions with A -> B */
             stmt.o2.u1 = stmt.o3.u1;
             stmt.o3.u1 = 0;
+
+            /* tiny optimization, don't output
+             * STORE a, a
+             */
+            if (stmt.o2.u1 == stmt.o1.u1 &&
+                OPTS_OPTIMIZATION(OPTIM_PEEPHOLE))
+            {
+                ++optimization_count[OPTIM_PEEPHOLE];
+                continue;
+            }
         }
 
-        if (code_statements_add(stmt) < 0)
-            return false;
+        code_push_statement(&stmt, instr->context.line);
     }
     return true;
 }
@@ -2509,7 +2872,7 @@ static bool gen_function_code(ir_function *self)
     /* Starting from entry point, we generate blocks "as they come"
      * for now. Dead blocks will not be translated obviously.
      */
-    if (!self->blocks_count) {
+    if (!vec_size(self->blocks)) {
         irerror(self->context, "Function '%s' declared without body.", self->name);
         return false;
     }
@@ -2528,20 +2891,40 @@ static bool gen_function_code(ir_function *self)
     stmt.o1.u1 = 0;
     stmt.o2.u1 = 0;
     stmt.o3.u1 = 0;
-    if (code_statements_add(stmt) < 0)
-        return false;
+    code_push_statement(&stmt, vec_last(code_linenums));
     return true;
 }
 
+static qcint ir_builder_filestring(ir_builder *ir, const char *filename)
+{
+    /* NOTE: filename pointers are copied, we never strdup them,
+     * thus we can use pointer-comparison to find the string.
+     */
+    size_t i;
+    qcint  str;
+
+    for (i = 0; i < vec_size(ir->filenames); ++i) {
+        if (ir->filenames[i] == filename)
+            return ir->filestrings[i];
+    }
+
+    str = code_genstring(filename);
+    vec_push(ir->filenames, filename);
+    vec_push(ir->filestrings, str);
+    return str;
+}
+
 static bool gen_global_function(ir_builder *ir, ir_value *global)
 {
     prog_section_function fun;
     ir_function          *irfun;
 
     size_t i;
+#if 0
     size_t local_var_end;
+#endif
 
-    if (!global->isconst || (!global->constval.vfunc))
+    if (!global->hasvalue || (!global->constval.vfunc))
     {
         irerror(global->context, "Invalid state of function-global: not constant: %s", global->name);
         return false;
@@ -2550,33 +2933,38 @@ static bool gen_global_function(ir_builder *ir, ir_value *global)
     irfun = global->constval.vfunc;
 
     fun.name    = global->code.name;
-    fun.file    = code_cachedstring(global->context.file);
+    fun.file    = ir_builder_filestring(ir, global->context.file);
     fun.profile = 0; /* always 0 */
-    fun.nargs   = irfun->params_count;
+    fun.nargs   = vec_size(irfun->params);
+    if (fun.nargs > 8)
+        fun.nargs = 8;
 
     for (i = 0;i < 8; ++i) {
-        if (i >= fun.nargs)
+        if ((int32_t)i >= fun.nargs)
             fun.argsize[i] = 0;
         else
             fun.argsize[i] = type_sizeof[irfun->params[i]];
     }
 
-    fun.firstlocal = code_globals_elements;
-    fun.locals     = irfun->allocated_locals + irfun->locals_count;
+    fun.firstlocal = vec_size(code_globals);
 
+#if 0
     local_var_end = fun.firstlocal;
-    for (i = 0; i < irfun->locals_count; ++i) {
-        if (!ir_builder_gen_global(ir, irfun->locals[i])) {
+    for (i = 0; i < vec_size(irfun->locals); ++i) {
+        if (!ir_builder_gen_global(ir, irfun->locals[i], true)) {
             irerror(irfun->locals[i]->context, "Failed to generate local %s", irfun->locals[i]->name);
             return false;
         }
     }
-    if (irfun->locals_count) {
-        ir_value *last = irfun->locals[irfun->locals_count-1];
+    if (vec_size(irfun->locals)) {
+        ir_value *last = vec_last(irfun->locals);
         local_var_end = last->code.globaladdr;
-        local_var_end += type_sizeof[last->vtype];
+        if (last->vtype == TYPE_FIELD && last->fieldtype == TYPE_VECTOR)
+            local_var_end += type_sizeof[TYPE_VECTOR];
+        else
+            local_var_end += type_sizeof[last->vtype];
     }
-    for (i = 0; i < irfun->values_count; ++i)
+    for (i = 0; i < vec_size(irfun->values); ++i)
     {
         /* generate code.globaladdr for ssa values */
         ir_value *v = irfun->values[i];
@@ -2584,17 +2972,96 @@ static bool gen_global_function(ir_builder *ir, ir_value *global)
     }
     for (i = 0; i < irfun->allocated_locals; ++i) {
         /* fill the locals with zeros */
-        code_globals_add(0);
+        vec_push(code_globals, 0);
+    }
+
+    fun.locals = vec_size(code_globals) - fun.firstlocal;
+#else
+    fun.locals = irfun->allocated_locals;
+    for (i = 0; i < vec_size(irfun->locals); ++i) {
+        if (!ir_builder_gen_global(ir, irfun->locals[i], true)) {
+            irerror(irfun->locals[i]->context, "Failed to generate local %s", irfun->locals[i]->name);
+            return false;
+        }
+        ir_value_code_setaddr(irfun->locals[i], fun.firstlocal + irfun->locals[i]->code.local);
+    }
+    for (i = vec_size(code_globals) - fun.firstlocal; i < fun.locals; ++i) {
+        vec_push(code_globals, 0);
+    }
+    for (i = 0; i < vec_size(irfun->values); ++i)
+    {
+        /* generate code.globaladdr for ssa values */
+        ir_value *v = irfun->values[i];
+        ir_value_code_setaddr(v, fun.firstlocal + v->code.local);
     }
+#endif
 
     if (irfun->builtin)
-        fun.entry = irfun->builtin;
+        fun.entry = irfun->builtin+1;
     else {
-        irfun->code_function_def = code_functions_elements;
-        fun.entry = code_statements_elements;
+        irfun->code_function_def = vec_size(code_functions);
+        fun.entry = vec_size(code_statements);
     }
 
-    return (code_functions_add(fun) >= 0);
+    vec_push(code_functions, fun);
+    return true;
+}
+
+static void ir_gen_extparam(ir_builder *ir)
+{
+    prog_section_def def;
+    ir_value        *global;
+    char             name[128];
+
+    snprintf(name, sizeof(name), "EXTPARM#%i", (int)(vec_size(ir->extparams)+8));
+    global = ir_value_var(name, store_global, TYPE_VECTOR);
+
+    def.name = code_genstring(name);
+    def.type = TYPE_VECTOR;
+    def.offset = vec_size(code_globals);
+
+    vec_push(code_defs, def);
+    ir_value_code_setaddr(global, def.offset);
+    vec_push(code_globals, 0);
+    vec_push(code_globals, 0);
+    vec_push(code_globals, 0);
+
+    vec_push(ir->extparams, global);
+}
+
+static bool gen_function_extparam_copy(ir_function *self)
+{
+    size_t i, ext, numparams;
+
+    ir_builder *ir = self->owner;
+    ir_value   *ep;
+    prog_section_statement stmt;
+
+    numparams = vec_size(self->params);
+    if (!numparams)
+        return true;
+
+    stmt.opcode = INSTR_STORE_F;
+    stmt.o3.s1 = 0;
+    for (i = 8; i < numparams; ++i) {
+        ext = i - 8;
+        if (ext >= vec_size(ir->extparams))
+            ir_gen_extparam(ir);
+
+        ep = ir->extparams[ext];
+
+        stmt.opcode = type_store_instr[self->locals[i]->vtype];
+        if (self->locals[i]->vtype == TYPE_FIELD &&
+            self->locals[i]->fieldtype == TYPE_VECTOR)
+        {
+            stmt.opcode = INSTR_STORE_V;
+        }
+        stmt.o1.u1 = ir_value_code_addr(ep);
+        stmt.o2.u1 = ir_value_code_addr(self->locals[i]);
+        code_push_statement(&stmt, self->context.line);
+    }
+
+    return true;
 }
 
 static bool gen_global_function_code(ir_builder *ir, ir_value *global)
@@ -2602,7 +3069,18 @@ static bool gen_global_function_code(ir_builder *ir, ir_value *global)
     prog_section_function *fundef;
     ir_function           *irfun;
 
+    (void)ir;
+
     irfun = global->constval.vfunc;
+    if (!irfun) {
+        if (global->cvq == CV_NONE) {
+            irwarning(global->context, WARN_IMPLICIT_FUNCTION_POINTER,
+                      "function `%s` has no body and in QC implicitly becomes a function-pointer", global->name);
+        }
+        /* this was a function pointer, don't generate code for those */
+        return true;
+    }
+
     if (irfun->builtin)
         return true;
 
@@ -2610,9 +3088,13 @@ static bool gen_global_function_code(ir_builder *ir, ir_value *global)
         irerror(irfun->context, "`%s`: IR global wasn't generated, failed to access function-def", irfun->name);
         return false;
     }
-    fundef = &code_functions_data[irfun->code_function_def];
+    fundef = &code_functions[irfun->code_function_def];
 
-    fundef->entry = code_statements_elements;
+    fundef->entry = vec_size(code_statements);
+    if (!gen_function_extparam_copy(irfun)) {
+        irerror(irfun->context, "Failed to generate extparam-copy code for function %s", irfun->name);
+        return false;
+    }
     if (!gen_function_code(irfun)) {
         irerror(irfun->context, "Failed to generate code for function %s", irfun->name);
         return false;
@@ -2620,15 +3102,26 @@ static bool gen_global_function_code(ir_builder *ir, ir_value *global)
     return true;
 }
 
-static bool ir_builder_gen_global(ir_builder *self, ir_value *global)
+static bool ir_builder_gen_global(ir_builder *self, ir_value *global, bool islocal)
 {
     size_t           i;
     int32_t         *iptr;
     prog_section_def def;
 
     def.type   = global->vtype;
-    def.offset = code_globals_elements;
-    def.name   = global->code.name       = code_genstring(global->name);
+    def.offset = vec_size(code_globals);
+
+    if (global->name) {
+        if (global->name[0] == '#') {
+            if (!self->str_immediate)
+                self->str_immediate = code_genstring("IMMEDIATE");
+            def.name = global->code.name = self->str_immediate;
+        }
+        else
+            def.name = global->code.name = code_genstring(global->name);
+    }
+    else
+        def.name   = 0;
 
     switch (global->vtype)
     {
@@ -2648,84 +3141,98 @@ static bool ir_builder_gen_global(ir_builder *self, ir_value *global)
         /* I'd argue setting it to 0 is sufficient, but maybe some depend on knowing how far
          * the system fields actually go? Though the engine knows this anyway...
          * Maybe this could be an -foption
+         * fteqcc creates data for end_sys_* - of size 1, so let's do the same
          */
-        ir_value_code_setaddr(global, def.offset);
+        ir_value_code_setaddr(global, vec_size(code_globals));
+        vec_push(code_globals, 0);
         /* Add the def */
-        if (code_defs_add(def) < 0)
-            return false;
+        vec_push(code_defs, def);
         return true;
     case TYPE_POINTER:
-        if (code_defs_add(def) < 0)
-            return false;
+        vec_push(code_defs, def);
         return gen_global_pointer(global);
     case TYPE_FIELD:
-        if (code_defs_add(def) < 0)
-            return false;
+        vec_push(code_defs, def);
         return gen_global_field(global);
     case TYPE_ENTITY:
         /* fall through */
     case TYPE_FLOAT:
     {
-        if (code_defs_add(def) < 0)
-            return false;
-
-        if (global->isconst) {
-            iptr = (int32_t*)&global->constval.vfloat;
-            ir_value_code_setaddr(global, code_globals_add(*iptr));
-        } else
-            ir_value_code_setaddr(global, code_globals_add(0));
+        ir_value_code_setaddr(global, vec_size(code_globals));
+        if (global->hasvalue) {
+            iptr = (int32_t*)&global->constval.ivec[0];
+            vec_push(code_globals, *iptr);
+        } else {
+            vec_push(code_globals, 0);
+            if (!islocal)
+                def.type |= DEF_SAVEGLOBAL;
+        }
+        vec_push(code_defs, def);
 
         return global->code.globaladdr >= 0;
     }
     case TYPE_STRING:
     {
-        if (code_defs_add(def) < 0)
-            return false;
-        if (global->isconst)
-            ir_value_code_setaddr(global, code_globals_add(code_cachedstring(global->constval.vstring)));
-        else
-            ir_value_code_setaddr(global, code_globals_add(0));
+        ir_value_code_setaddr(global, vec_size(code_globals));
+        if (global->hasvalue) {
+            vec_push(code_globals, code_genstring(global->constval.vstring));
+        } else {
+            vec_push(code_globals, 0);
+            if (!islocal)
+                def.type |= DEF_SAVEGLOBAL;
+        }
+        vec_push(code_defs, def);
         return global->code.globaladdr >= 0;
     }
     case TYPE_VECTOR:
     {
         size_t d;
-        if (code_defs_add(def) < 0)
-            return false;
-
-        if (global->isconst) {
-            iptr = (int32_t*)&global->constval.vvec;
-            ir_value_code_setaddr(global, code_globals_add(iptr[0]));
+        ir_value_code_setaddr(global, vec_size(code_globals));
+        if (global->hasvalue) {
+            iptr = (int32_t*)&global->constval.ivec[0];
+            vec_push(code_globals, iptr[0]);
             if (global->code.globaladdr < 0)
                 return false;
             for (d = 1; d < type_sizeof[global->vtype]; ++d)
             {
-                if (code_globals_add(iptr[d]) < 0)
-                    return false;
+                vec_push(code_globals, iptr[d]);
             }
         } else {
-            ir_value_code_setaddr(global, code_globals_add(0));
+            vec_push(code_globals, 0);
             if (global->code.globaladdr < 0)
                 return false;
             for (d = 1; d < type_sizeof[global->vtype]; ++d)
             {
-                if (code_globals_add(0) < 0)
-                    return false;
+                vec_push(code_globals, 0);
             }
+            if (!islocal)
+                def.type |= DEF_SAVEGLOBAL;
         }
+
+        vec_push(code_defs, def);
         return global->code.globaladdr >= 0;
     }
     case TYPE_FUNCTION:
-        if (code_defs_add(def) < 0)
-            return false;
-        ir_value_code_setaddr(global, code_globals_elements);
-        code_globals_add(code_functions_elements);
-        return gen_global_function(self, global);
+        ir_value_code_setaddr(global, vec_size(code_globals));
+        if (!global->hasvalue) {
+            vec_push(code_globals, 0);
+            if (global->code.globaladdr < 0)
+                return false;
+        } else {
+            vec_push(code_globals, vec_size(code_functions));
+            if (!gen_global_function(self, global))
+                return false;
+            if (!islocal)
+                def.type |= DEF_SAVEGLOBAL;
+        }
+        vec_push(code_defs, def);
+        return true;
     case TYPE_VARIANT:
         /* assume biggest type */
-            ir_value_code_setaddr(global, code_globals_add(0));
+            ir_value_code_setaddr(global, vec_size(code_globals));
+            vec_push(code_globals, 0);
             for (i = 1; i < type_sizeof[TYPE_VARIANT]; ++i)
-                code_globals_add(0);
+                vec_push(code_globals, 0);
             return true;
     default:
         /* refuse to create 'void' type or any other fancy business. */
@@ -2735,16 +3242,23 @@ static bool ir_builder_gen_global(ir_builder *self, ir_value *global)
     }
 }
 
+static void ir_builder_prepare_field(ir_value *field)
+{
+    field->code.fieldaddr = code_alloc_field(type_sizeof[field->fieldtype]);
+}
+
 static bool ir_builder_gen_field(ir_builder *self, ir_value *field)
 {
     prog_section_def def;
     prog_section_field fld;
 
-    def.type   = field->vtype;
-    def.offset = code_globals_elements;
+    (void)self;
+
+    def.type   = (uint16_t)field->vtype;
+    def.offset = (uint16_t)vec_size(code_globals);
 
     /* create a global named the same as the field */
-    if (opts_standard == COMPILER_GMQCC) {
+    if (opts.standard == COMPILER_GMQCC) {
         /* in our standard, the global gets a dot prefix */
         size_t len = strlen(field->name);
         char name[1024];
@@ -2775,8 +3289,7 @@ static bool ir_builder_gen_field(ir_builder *self, ir_value *field)
 
     field->code.name = def.name;
 
-    if (code_defs_add(def) < 0)
-        return false;
+    vec_push(code_defs, def);
 
     fld.type = field->fieldtype;
 
@@ -2785,19 +3298,15 @@ static bool ir_builder_gen_field(ir_builder *self, ir_value *field)
         return false;
     }
 
-    fld.offset = code_alloc_field(type_sizeof[field->fieldtype]);
+    fld.offset = field->code.fieldaddr;
 
-    if (code_fields_add(fld) < 0)
-        return false;
+    vec_push(code_fields, fld);
 
-    ir_value_code_setaddr(field, code_globals_elements);
-    if (!code_globals_add(fld.offset))
-        return false;
+    ir_value_code_setaddr(field, vec_size(code_globals));
+    vec_push(code_globals, fld.offset);
     if (fld.type == TYPE_VECTOR) {
-        if (!code_globals_add(fld.offset+1))
-            return false;
-        if (!code_globals_add(fld.offset+2))
-            return false;
+        vec_push(code_globals, fld.offset+1);
+        vec_push(code_globals, fld.offset+2);
     }
 
     return field->code.globaladdr >= 0;
@@ -2805,26 +3314,33 @@ static bool ir_builder_gen_field(ir_builder *self, ir_value *field)
 
 bool ir_builder_generate(ir_builder *self, const char *filename)
 {
+    prog_section_statement stmt;
     size_t i;
+    char   *lnofile = NULL;
 
     code_init();
 
-    for (i = 0; i < self->fields_count; ++i)
+    for (i = 0; i < vec_size(self->fields); ++i)
     {
-        if (!ir_builder_gen_field(self, self->fields[i])) {
+        ir_builder_prepare_field(self->fields[i]);
+    }
+
+    for (i = 0; i < vec_size(self->globals); ++i)
+    {
+        if (!ir_builder_gen_global(self, self->globals[i], false)) {
             return false;
         }
     }
 
-    for (i = 0; i < self->globals_count; ++i)
+    for (i = 0; i < vec_size(self->fields); ++i)
     {
-        if (!ir_builder_gen_global(self, self->globals[i])) {
+        if (!ir_builder_gen_field(self, self->fields[i])) {
             return false;
         }
     }
 
     /* generate function code */
-    for (i = 0; i < self->globals_count; ++i)
+    for (i = 0; i < vec_size(self->globals); ++i)
     {
         if (self->globals[i]->vtype == TYPE_FUNCTION) {
             if (!gen_global_function_code(self, self->globals[i])) {
@@ -2833,8 +3349,52 @@ bool ir_builder_generate(ir_builder *self, const char *filename)
         }
     }
 
-    printf("writing '%s'...\n", filename);
-    return code_write(filename);
+    if (vec_size(code_globals) >= 65536) {
+        irerror(vec_last(self->globals)->context, "This progs file would require more globals than the metadata can handle. Bailing out.");
+        return false;
+    }
+
+    /* DP errors if the last instruction is not an INSTR_DONE
+     * and for debugging purposes we add an additional AINSTR_END
+     * to the end of functions, so here it goes:
+     */
+    stmt.opcode = INSTR_DONE;
+    stmt.o1.u1 = 0;
+    stmt.o2.u1 = 0;
+    stmt.o3.u1 = 0;
+    code_push_statement(&stmt, vec_last(code_linenums));
+
+    if (opts.pp_only)
+        return true;
+
+    if (vec_size(code_statements) != vec_size(code_linenums)) {
+        con_err("Linecounter wrong: %lu != %lu\n",
+                (unsigned long)vec_size(code_statements),
+                (unsigned long)vec_size(code_linenums));
+    } else if (OPTS_FLAG(LNO)) {
+        char *dot;
+        size_t filelen = strlen(filename);
+
+        memcpy(vec_add(lnofile, filelen+1), filename, filelen+1);
+        dot = strrchr(lnofile, '.');
+        if (!dot) {
+            vec_pop(lnofile);
+        } else {
+            vec_shrinkto(lnofile, dot - lnofile);
+        }
+        memcpy(vec_add(lnofile, 5), ".lno", 5);
+    }
+
+    if (lnofile)
+        con_out("writing '%s' and '%s'...\n", filename, lnofile);
+    else
+        con_out("writing '%s'\n", filename);
+    if (!code_write(filename, lnofile)) {
+        vec_free(lnofile);
+        return false;
+    }
+    vec_free(lnofile);
+    return true;
 }
 
 /***********************************************************************
@@ -2845,14 +3405,12 @@ bool ir_builder_generate(ir_builder *self, const char *filename)
 
 #ifdef WIN32
 # define strncat(dst, src, sz) strncat_s(dst, sz, src, _TRUNCATE)
-#else
-# define strncat strncat
 #endif
 
 const char *qc_opname(int op)
 {
     if (op < 0) return "<INVALID>";
-    if (op < ( sizeof(asm_instr) / sizeof(asm_instr[0]) ))
+    if (op < (int)( sizeof(asm_instr) / sizeof(asm_instr[0]) ))
         return asm_instr[op].m;
     switch (op) {
         case VINSTR_PHI:  return "PHI";
@@ -2870,15 +3428,15 @@ void ir_builder_dump(ir_builder *b, int (*oprintf)(const char*, ...))
     indent[1] = 0;
 
     oprintf("module %s\n", b->name);
-    for (i = 0; i < b->globals_count; ++i)
+    for (i = 0; i < vec_size(b->globals); ++i)
     {
         oprintf("global ");
-        if (b->globals[i]->isconst)
+        if (b->globals[i]->hasvalue)
             oprintf("%s = ", b->globals[i]->name);
         ir_value_dump(b->globals[i], oprintf);
         oprintf("\n");
     }
-    for (i = 0; i < b->functions_count; ++i)
+    for (i = 0; i < vec_size(b->functions); ++i)
         ir_function_dump(b->functions[i], indent, oprintf);
     oprintf("endmodule %s\n", b->name);
 }
@@ -2893,19 +3451,38 @@ void ir_function_dump(ir_function *f, char *ind,
     }
     oprintf("%sfunction %s\n", ind, f->name);
     strncat(ind, "\t", IND_BUFSZ);
-    if (f->locals_count)
+    if (vec_size(f->locals))
     {
-        oprintf("%s%i locals:\n", ind, (int)f->locals_count);
-        for (i = 0; i < f->locals_count; ++i) {
+        oprintf("%s%i locals:\n", ind, (int)vec_size(f->locals));
+        for (i = 0; i < vec_size(f->locals); ++i) {
             oprintf("%s\t", ind);
             ir_value_dump(f->locals[i], oprintf);
             oprintf("\n");
         }
     }
-    if (f->blocks_count)
+    oprintf("%sliferanges:\n", ind);
+    for (i = 0; i < vec_size(f->locals); ++i) {
+        size_t l;
+        ir_value *v = f->locals[i];
+        oprintf("%s\t%s: %s@%i ", ind, v->name, (v->unique_life ? "unique " : ""), (int)v->code.local);
+        for (l = 0; l < vec_size(v->life); ++l) {
+            oprintf("[%i,%i] ", v->life[l].start, v->life[l].end);
+        }
+        oprintf("\n");
+    }
+    for (i = 0; i < vec_size(f->values); ++i) {
+        size_t l;
+        ir_value *v = f->values[i];
+        oprintf("%s\t%s: @%i ", ind, v->name, (int)v->code.local);
+        for (l = 0; l < vec_size(v->life); ++l) {
+            oprintf("[%i,%i] ", v->life[l].start, v->life[l].end);
+        }
+        oprintf("\n");
+    }
+    if (vec_size(f->blocks))
     {
         oprintf("%slife passes (check): %i\n", ind, (int)f->run_id);
-        for (i = 0; i < f->blocks_count; ++i) {
+        for (i = 0; i < vec_size(f->blocks); ++i) {
             if (f->blocks[i]->run_id != f->run_id) {
                 oprintf("%slife pass check fail! %i != %i\n", ind, (int)f->blocks[i]->run_id, (int)f->run_id);
             }
@@ -2924,17 +3501,16 @@ void ir_block_dump(ir_block* b, char *ind,
     oprintf("%s:%s\n", ind, b->label);
     strncat(ind, "\t", IND_BUFSZ);
 
-    for (i = 0; i < b->instr_count; ++i)
+    for (i = 0; i < vec_size(b->instr); ++i)
         ir_instr_dump(b->instr[i], ind, oprintf);
     ind[strlen(ind)-1] = 0;
 }
 
-void dump_phi(ir_instr *in, char *ind,
-              int (*oprintf)(const char*, ...))
+void dump_phi(ir_instr *in, int (*oprintf)(const char*, ...))
 {
     size_t i;
     oprintf("%s <- phi ", in->_ops[0]->name);
-    for (i = 0; i < in->phi_count; ++i)
+    for (i = 0; i < vec_size(in->phi); ++i)
     {
         oprintf("([%s] : %s) ", in->phi[i].from->label,
                                 in->phi[i].value->name);
@@ -2951,7 +3527,7 @@ void ir_instr_dump(ir_instr *in, char *ind,
     oprintf("%s (%i) ", ind, (int)in->eid);
 
     if (in->opcode == VINSTR_PHI) {
-        dump_phi(in, ind, oprintf);
+        dump_phi(in, oprintf);
         return;
     }
 
@@ -2963,7 +3539,7 @@ void ir_instr_dump(ir_instr *in, char *ind,
             oprintf(" <- ");
     }
     if (in->opcode == INSTR_CALL0) {
-        oprintf("CALL%i\t", in->params_count);
+        oprintf("CALL%i\t", vec_size(in->params));
     } else
         oprintf("%s\t", qc_opname(in->opcode));
 
@@ -2990,20 +3566,46 @@ void ir_instr_dump(ir_instr *in, char *ind,
     }
     if (in->bops[1])
         oprintf("%s[%s]", comma, in->bops[1]->label);
+    if (vec_size(in->params)) {
+        oprintf("\tparams: ");
+        for (i = 0; i != vec_size(in->params); ++i) {
+            oprintf("%s, ", in->params[i]->name);
+        }
+    }
     oprintf("\n");
     ind[strlen(ind)-1] = 0;
 }
 
+void ir_value_dump_string(const char *str, int (*oprintf)(const char*, ...))
+{
+    oprintf("\"");
+    for (; *str; ++str) {
+        switch (*str) {
+            case '\n': oprintf("\\n"); break;
+            case '\r': oprintf("\\r"); break;
+            case '\t': oprintf("\\t"); break;
+            case '\v': oprintf("\\v"); break;
+            case '\f': oprintf("\\f"); break;
+            case '\b': oprintf("\\b"); break;
+            case '\a': oprintf("\\a"); break;
+            case '\\': oprintf("\\\\"); break;
+            case '"': oprintf("\\\""); break;
+            default: oprintf("%c", *str); break;
+        }
+    }
+    oprintf("\"");
+}
+
 void ir_value_dump(ir_value* v, int (*oprintf)(const char*, ...))
 {
-    if (v->isconst) {
+    if (v->hasvalue) {
         switch (v->vtype) {
             default:
             case TYPE_VOID:
                 oprintf("(void)");
                 break;
             case TYPE_FUNCTION:
-                oprintf("(function)");
+                oprintf("fn:%s", v->name);
                 break;
             case TYPE_FLOAT:
                 oprintf("%g", v->constval.vfloat);
@@ -3018,7 +3620,7 @@ void ir_value_dump(ir_value* v, int (*oprintf)(const char*, ...))
                 oprintf("(entity)");
                 break;
             case TYPE_STRING:
-                oprintf("\"%s\"", v->constval.vstring);
+                ir_value_dump_string(v->constval.vstring, oprintf);
                 break;
 #if 0
             case TYPE_INTEGER:
@@ -3035,11 +3637,11 @@ void ir_value_dump(ir_value* v, int (*oprintf)(const char*, ...))
     }
 }
 
-void ir_value_dump_life(ir_value *self, int (*oprintf)(const char*,...))
+void ir_value_dump_life(const ir_value *self, int (*oprintf)(const char*,...))
 {
     size_t i;
-    oprintf("Life of %s:\n", self->name);
-    for (i = 0; i < self->life_count; ++i)
+    oprintf("Life of %12s:", self->name);
+    for (i = 0; i < vec_size(self->life); ++i)
     {
         oprintf(" + [%i, %i]\n", self->life[i].start, self->life[i].end);
     }