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20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
29 * Type large enough to hold all the possible IR flags. This should be
30 * changed if the static assertion at the end of this file fails.
32 typedef uint8_t ir_flag_t;
34 typedef struct ir_value_s ir_value;
35 typedef struct ir_instr_s ir_instr;
36 typedef struct ir_block_s ir_block;
37 typedef struct ir_function_s ir_function;
38 typedef struct ir_builder_s ir_builder;
41 IR_FLAG_HAS_ARRAYS = 1 << 0,
42 IR_FLAG_HAS_UNINITIALIZED = 1 << 1,
43 IR_FLAG_HAS_GOTO = 1 << 2,
44 IR_FLAG_INCLUDE_DEF = 1 << 3,
45 IR_FLAG_ERASEABLE = 1 << 4,
46 IR_FLAG_BLOCK_COVERAGE = 1 << 5,
49 IR_FLAG_MASK_NO_OVERLAP = (IR_FLAG_HAS_ARRAYS | IR_FLAG_HAS_UNINITIALIZED),
50 IR_FLAG_MASK_NO_LOCAL_TEMPS = (IR_FLAG_HAS_ARRAYS | IR_FLAG_HAS_UNINITIALIZED)
60 int fieldtype; /* even the IR knows the subtype of a field */
61 int outtype; /* and the output type of a function */
62 int cvq; /* 'const' vs 'var' qualifier */
83 int32_t local; /* filled by the local-allocator */
84 int32_t addroffset; /* added for members */
85 int32_t fieldaddr; /* to generate field-addresses early */
88 /* for acessing vectors */
93 bool unique_life; /* arrays will never overlap with temps */
94 bool locked; /* temps living during a CALL must be locked */
97 ir_lifemask_t *life; /* For the temp allocator */
101 * ir_value can be a variable, or created by an operation
102 * if a result of an operation: the function should store
103 * it to remember to delete it / garbage collect it
105 void ir_value_delete(ir_value*);
106 ir_value* ir_value_vector_member(ir_value*, unsigned int member);
107 bool GMQCC_WARN ir_value_set_float(ir_value*, float f);
108 bool GMQCC_WARN ir_value_set_func(ir_value*, int f);
109 bool GMQCC_WARN ir_value_set_string(ir_value*, const char *s);
110 bool GMQCC_WARN ir_value_set_vector(ir_value*, vec3_t v);
111 bool GMQCC_WARN ir_value_set_field(ir_value*, ir_value *fld);
112 bool ir_value_lives(ir_value*, size_t);
113 void ir_value_dump_life(const ir_value *self, int (*oprintf)(const char*,...));
116 typedef struct ir_phi_entry_s {
131 /* For the temp-allocation */
144 bool final; /* once a jump is added we're done */
151 /* For the temp-allocation */
162 ir_value* ir_block_create_binop(ir_block*, lex_ctx_t, const char *label, int op, ir_value *left, ir_value *right);
163 ir_value* ir_block_create_unary(ir_block*, lex_ctx_t, const char *label, int op, ir_value *operand);
164 bool GMQCC_WARN ir_block_create_store_op(ir_block*, lex_ctx_t, int op, ir_value *target, ir_value *what);
165 bool GMQCC_WARN ir_block_create_storep(ir_block*, lex_ctx_t, ir_value *target, ir_value *what);
166 ir_value* ir_block_create_load_from_ent(ir_block*, lex_ctx_t, const char *label, ir_value *ent, ir_value *field, int outype);
167 ir_value* ir_block_create_fieldaddress(ir_block*, lex_ctx_t, const char *label, ir_value *entity, ir_value *field);
168 bool GMQCC_WARN ir_block_create_state_op(ir_block*, lex_ctx_t, ir_value *frame, ir_value *think);
170 /* This is to create an instruction of the form
171 * <outtype>%label := opcode a, b
173 ir_instr* ir_block_create_phi(ir_block*, lex_ctx_t, const char *label, int vtype);
174 ir_value* ir_phi_value(ir_instr*);
175 void ir_phi_add(ir_instr*, ir_block *b, ir_value *v);
176 ir_instr* ir_block_create_call(ir_block*, lex_ctx_t, const char *label, ir_value *func, bool noreturn);
177 ir_value* ir_call_value(ir_instr*);
178 void ir_call_param(ir_instr*, ir_value*);
180 bool GMQCC_WARN ir_block_create_return(ir_block*, lex_ctx_t, ir_value *opt_value);
182 bool GMQCC_WARN ir_block_create_if(ir_block*, lex_ctx_t, ir_value *cond,
183 ir_block *ontrue, ir_block *onfalse);
185 * A 'goto' is an actual 'goto' coded in QC, whereas
186 * a 'jump' is a virtual construct which simply names the
187 * next block to go to.
188 * A goto usually becomes an OP_GOTO in the resulting code,
189 * whereas a 'jump' usually doesn't add any actual instruction.
191 bool GMQCC_WARN ir_block_create_jump(ir_block*, lex_ctx_t, ir_block *to);
192 bool GMQCC_WARN ir_block_create_goto(ir_block*, lex_ctx_t, ir_block *to);
195 struct ir_function_s {
204 * values generated from operations
205 * which might get optimized away, so anything
206 * in there needs to be deleted in the dtor.
209 ir_value **locals; /* locally defined variables */
212 size_t allocated_locals;
222 * for prototypes - first we generate all the
223 * globals, and we remember teh function-defs
224 * so we can later fill in the entry pos
228 qcint_t code_function_def;
230 /* for temp allocation */
235 /* vararg support: */
240 ir_value* ir_function_create_local(ir_function *self, const char *name, int vtype, bool param);
241 bool GMQCC_WARN ir_function_finalize(ir_function*);
242 ir_block* ir_function_create_block(lex_ctx_t ctx, ir_function*, const char *label);
245 #define IR_HT_SIZE 1024
246 #define IR_MAX_VINSTR_TEMPS 1
248 struct ir_builder_s {
250 ir_function **functions;
258 ir_value **extparams;
259 ir_value **extparam_protos;
261 /* the highest func->allocated_locals */
263 size_t max_globaltemps;
264 uint32_t first_common_local;
265 uint32_t first_common_globaltemp;
267 const char **filenames;
268 qcint_t *filestrings;
269 /* we cache the #IMMEDIATE string here */
270 qcint_t str_immediate;
271 /* there should just be this one nil */
273 ir_value *reserved_va_count;
274 ir_value *coverage_func;
275 /* some virtual instructions require temps, and their code is isolated
276 * so that we don't need to keep track of their liveness.
278 ir_value *vinstr_temp[IR_MAX_VINSTR_TEMPS];
284 ir_builder* ir_builder_new(const char *modulename);
285 void ir_builder_delete(ir_builder*);
286 ir_function* ir_builder_create_function(ir_builder*, const char *name, int outtype);
287 ir_value* ir_builder_create_global(ir_builder*, const char *name, int vtype);
288 ir_value* ir_builder_create_field(ir_builder*, const char *name, int vtype);
289 ir_value* ir_builder_get_va_count(ir_builder*);
290 bool ir_builder_generate(ir_builder *self, const char *filename);
291 void ir_builder_dump(ir_builder*, int (*oprintf)(const char*, ...));
294 * This code assumes 32 bit floats while generating binary
295 * Blub: don't use extern here, it's annoying and shows up in nm
298 typedef int static_assert_is_32bit_float [(sizeof(int32_t) == 4) ? 1 : -1];
299 typedef int static_assert_is_32bit_integer[(sizeof(qcfloat_t) == 4) ? 1 : -1];
302 * If the condition creates a situation where this becomes -1 size it means there are
303 * more IR_FLAGs than the type ir_flag_t is capable of holding. So either eliminate
304 * the IR flag count or change the ir_flag_t typedef to a type large enough to accomodate
307 typedef int static_assert_is_ir_flag_safe [((IR_FLAG_LAST) <= (ir_flag_t)(-1)) ? 1 : -1];