/*
- * Copyright (C) 2012, 2013
+ * Copyright (C) 2012, 2013, 2014, 2015
* Wolfgang Bumiller
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
#define GMQCC_IR_HDR
#include "gmqcc.h"
-typedef struct
-{
+/*
+ * Type large enough to hold all the possible IR flags. This should be
+ * changed if the static assertion at the end of this file fails.
+ */
+typedef uint8_t ir_flag_t;
+
+typedef struct ir_value_s ir_value;
+typedef struct ir_instr_s ir_instr;
+typedef struct ir_block_s ir_block;
+typedef struct ir_function_s ir_function;
+typedef struct ir_builder_s ir_builder;
+
+typedef struct {
/* both inclusive */
size_t start;
size_t end;
} ir_life_entry_t;
-struct ir_function_s;
-typedef struct ir_value_s {
+enum {
+ IR_FLAG_HAS_ARRAYS = 1 << 0,
+ IR_FLAG_HAS_UNINITIALIZED = 1 << 1,
+ IR_FLAG_HAS_GOTO = 1 << 2,
+ IR_FLAG_INCLUDE_DEF = 1 << 3,
+ IR_FLAG_ERASABLE = 1 << 4,
+ IR_FLAG_BLOCK_COVERAGE = 1 << 5,
+
+ IR_FLAG_SPLIT_VECTOR = 1 << 6,
+
+ IR_FLAG_LAST,
+ IR_FLAG_MASK_NO_OVERLAP = (IR_FLAG_HAS_ARRAYS | IR_FLAG_HAS_UNINITIALIZED),
+ IR_FLAG_MASK_NO_LOCAL_TEMPS = (IR_FLAG_HAS_ARRAYS | IR_FLAG_HAS_UNINITIALIZED)
+};
+
+struct ir_value_s {
char *name;
- int vtype;
- int store;
- lex_ctx_t context;
- /* even the IR knows the subtype of a field */
- int fieldtype;
- /* and the output type of a function */
- int outtype;
- /* 'const' vs 'var' qualifier */
- int cvq;
- uint32_t flags;
-
- struct ir_instr_s **reads;
- struct ir_instr_s **writes;
+ int vtype;
+ int store;
+ lex_ctx_t context;
+
+
+ int fieldtype; /* even the IR knows the subtype of a field */
+ int outtype; /* and the output type of a function */
+ int cvq; /* 'const' vs 'var' qualifier */
+ ir_flag_t flags;
+
+ ir_instr **reads;
+ ir_instr **writes;
/* constantvalues */
bool hasvalue;
union {
- float vfloat;
- int vint;
- vec3_t vvec;
- int32_t ivec[3];
- char *vstring;
- struct ir_value_s *vpointer;
- struct ir_function_s *vfunc;
+ qcfloat_t vfloat;
+ int vint;
+ vec3_t vvec;
+ int32_t ivec[3];
+ char *vstring;
+ ir_value *vpointer;
+ ir_function *vfunc;
} constval;
struct {
int32_t globaladdr;
int32_t name;
- /* filled by the local-allocator */
- int32_t local;
- /* added for members */
- int32_t addroffset;
- /* to generate field-addresses early */
- int32_t fieldaddr;
+ int32_t local; /* filled by the local-allocator */
+ int32_t addroffset; /* added for members */
+ int32_t fieldaddr; /* to generate field-addresses early */
} code;
/* for acessing vectors */
- struct ir_value_s *members[3];
- struct ir_value_s *memberof;
+ ir_value *members[3];
+ ir_value *memberof;
+
- /* arrays will never overlap with temps */
- bool unique_life;
- /* temps living during a CALL must be locked */
- bool locked;
- bool callparam;
+ bool unique_life; /* arrays will never overlap with temps */
+ bool locked; /* temps living during a CALL must be locked */
+ bool callparam;
- /* For the temp allocator */
- ir_life_entry_t *life;
-} ir_value;
+ ir_life_entry_t *life; /* For the temp allocator */
+};
-/* ir_value can be a variable, or created by an operation */
-/* if a result of an operation: the function should store
+/*
+ * ir_value can be a variable, or created by an operation
+ * if a result of an operation: the function should store
* it to remember to delete it / garbage collect it
*/
void ir_value_delete(ir_value*);
void ir_value_dump_life(const ir_value *self, int (*oprintf)(const char*,...));
/* PHI data */
-typedef struct ir_phi_entry_s
-{
- ir_value *value;
- struct ir_block_s *from;
+typedef struct ir_phi_entry_s {
+ ir_value *value;
+ ir_block *from;
} ir_phi_entry_t;
/* instruction */
-typedef struct ir_instr_s
-{
- int opcode;
- lex_ctx_t context;
+struct ir_instr_s {
+ int opcode;
+ lex_ctx_t context;
ir_value* (_ops[3]);
- struct ir_block_s* (bops[2]);
+ ir_block* (bops[2]);
ir_phi_entry_t *phi;
ir_value **params;
/* For IFs */
bool likely;
- struct ir_block_s *owner;
-} ir_instr;
+ ir_block *owner;
+};
/* block */
-typedef struct ir_block_s
-{
+struct ir_block_s {
char *label;
- lex_ctx_t context;
+ lex_ctx_t context;
bool final; /* once a jump is added we're done */
- ir_instr **instr;
- struct ir_block_s **entries;
- struct ir_block_s **exits;
- ir_value **living;
+ ir_instr **instr;
+ ir_block **entries;
+ ir_block **exits;
+ ir_value **living;
/* For the temp-allocation */
size_t entry_id;
size_t eid;
bool is_return;
- struct ir_function_s *owner;
+ ir_function *owner;
bool generated;
size_t code_start;
-} ir_block;
+};
ir_value* ir_block_create_binop(ir_block*, lex_ctx_t, const char *label, int op, ir_value *left, ir_value *right);
ir_value* ir_block_create_unary(ir_block*, lex_ctx_t, const char *label, int op, ir_value *operand);
bool GMQCC_WARN ir_block_create_storep(ir_block*, lex_ctx_t, ir_value *target, ir_value *what);
ir_value* ir_block_create_load_from_ent(ir_block*, lex_ctx_t, const char *label, ir_value *ent, ir_value *field, int outype);
ir_value* ir_block_create_fieldaddress(ir_block*, lex_ctx_t, const char *label, ir_value *entity, ir_value *field);
+bool GMQCC_WARN ir_block_create_state_op(ir_block*, lex_ctx_t, ir_value *frame, ir_value *think);
/* This is to create an instruction of the form
* <outtype>%label := opcode a, b
bool GMQCC_WARN ir_block_create_if(ir_block*, lex_ctx_t, ir_value *cond,
ir_block *ontrue, ir_block *onfalse);
-/* A 'goto' is an actual 'goto' coded in QC, whereas
+/*
+ * A 'goto' is an actual 'goto' coded in QC, whereas
* a 'jump' is a virtual construct which simply names the
* next block to go to.
* A goto usually becomes an OP_GOTO in the resulting code,
bool GMQCC_WARN ir_block_create_goto(ir_block*, lex_ctx_t, ir_block *to);
/* function */
-typedef struct ir_function_s
-{
+struct ir_function_s {
char *name;
int outtype;
int *params;
ir_block **blocks;
+ ir_flag_t flags;
+ int builtin;
- uint32_t flags;
-
- int builtin;
-
- ir_value *value;
-
- /* values generated from operations
+ /*
+ * values generated from operations
* which might get optimized away, so anything
* in there needs to be deleted in the dtor.
*/
ir_value **values;
-
- /* locally defined variables */
- ir_value **locals;
+ ir_value **locals; /* locally defined variables */
+ ir_value *value;
size_t allocated_locals;
size_t globaltemps;
- ir_block* first;
- ir_block* last;
+ ir_block* first;
+ ir_block* last;
- lex_ctx_t context;
+ lex_ctx_t context;
- /* for prototypes - first we generate all the
+ /*
+ * for prototypes - first we generate all the
* globals, and we remember teh function-defs
* so we can later fill in the entry pos
*
/* for temp allocation */
size_t run_id;
- struct ir_builder_s *owner;
+ ir_builder *owner;
/* vararg support: */
size_t max_varargs;
-} ir_function;
+};
-#define IR_FLAG_HAS_ARRAYS (1<<1)
-#define IR_FLAG_HAS_UNINITIALIZED (1<<2)
-#define IR_FLAG_HAS_GOTO (1<<3)
-#define IR_FLAG_INCLUDE_DEF (1<<4)
-#define IR_FLAG_MASK_NO_OVERLAP (IR_FLAG_HAS_ARRAYS | IR_FLAG_HAS_UNINITIALIZED)
-#define IR_FLAG_MASK_NO_LOCAL_TEMPS (IR_FLAG_HAS_ARRAYS | IR_FLAG_HAS_UNINITIALIZED)
ir_value* ir_function_create_local(ir_function *self, const char *name, int vtype, bool param);
bool GMQCC_WARN ir_function_finalize(ir_function*);
ir_block* ir_function_create_block(lex_ctx_t ctx, ir_function*, const char *label);
/* builder */
-#define IR_HT_SIZE 1024
+#define IR_HT_SIZE 1024
#define IR_MAX_VINSTR_TEMPS 1
-typedef struct ir_builder_s
-{
+
+struct ir_builder_s {
char *name;
ir_function **functions;
ir_value **globals;
ir_value **fields;
+ ir_value **const_floats; /* for reusing them in vector-splits, TODO: sort this or use a radix-tree */
ht htfunctions;
ht htglobals;
/* there should just be this one nil */
ir_value *nil;
ir_value *reserved_va_count;
+ ir_value *coverage_func;
/* some virtual instructions require temps, and their code is isolated
* so that we don't need to keep track of their liveness.
*/
/* code generator */
code_t *code;
-} ir_builder;
+};
ir_builder* ir_builder_new(const char *modulename);
void ir_builder_delete(ir_builder*);
* Blub: don't use extern here, it's annoying and shows up in nm
* for some reason :P
*/
-typedef int static_assert_is_32bit_float [(sizeof(int32_t) == 4)?1:-1];
-typedef int static_assert_is_32bit_integer[(sizeof(qcfloat_t) == 4)?1:-1];
+typedef int static_assert_is_32bit_float [(sizeof(int32_t) == 4) ? 1 : -1];
+typedef int static_assert_is_32bit_integer[(sizeof(qcfloat_t) == 4) ? 1 : -1];
+
+/*
+ * If the condition creates a situation where this becomes -1 size it means there are
+ * more IR_FLAGs than the type ir_flag_t is capable of holding. So either eliminate
+ * the IR flag count or change the ir_flag_t typedef to a type large enough to accomodate
+ * all the flags.
+ */
+typedef int static_assert_is_ir_flag_safe [((IR_FLAG_LAST) <= (ir_flag_t)(-1)) ? 1 : -1];
#endif
projects / xonotic / gmqcc.git / blobdiff