--- /dev/null
+/*
+ * Copyright (C) 2012, 2013
+ * Wolfgang Bumiller
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef GMQCC_IR_HDR
+#define GMQCC_IR_HDR
+#include "gmqcc.h"
+
+typedef struct
+{
+ /* both inclusive */
+ size_t start;
+ size_t end;
+} ir_life_entry_t;
+
+struct ir_function_s;
+typedef struct ir_value_s {
+ char *name;
+ int vtype;
+ int store;
+ lex_ctx 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;
+
+ /* constantvalues */
+ bool hasvalue;
+ union {
+ float vfloat;
+ int vint;
+ vector vvec;
+ int32_t ivec[3];
+ char *vstring;
+ struct ir_value_s *vpointer;
+ struct ir_function_s *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;
+ } code;
+
+ /* for acessing vectors */
+ struct ir_value_s *members[3];
+ struct ir_value_s *memberof;
+
+ /* arrays will never overlap with temps */
+ bool unique_life;
+ /* temps living during a CALL must be locked */
+ bool locked;
+ bool callparam;
+
+ /* For the temp allocator */
+ ir_life_entry_t *life;
+} ir_value;
+
+/* 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*);
+ir_value* ir_value_vector_member(ir_value*, unsigned int member);
+bool GMQCC_WARN ir_value_set_float(ir_value*, float f);
+bool GMQCC_WARN ir_value_set_func(ir_value*, int f);
+bool GMQCC_WARN ir_value_set_string(ir_value*, const char *s);
+bool GMQCC_WARN ir_value_set_vector(ir_value*, vector v);
+bool GMQCC_WARN ir_value_set_field(ir_value*, ir_value *fld);
+bool ir_value_lives(ir_value*, size_t);
+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;
+} ir_phi_entry_t;
+
+/* instruction */
+typedef struct ir_instr_s
+{
+ int opcode;
+ lex_ctx context;
+ ir_value* (_ops[3]);
+ struct ir_block_s* (bops[2]);
+
+ ir_phi_entry_t *phi;
+ ir_value **params;
+
+ /* For the temp-allocation */
+ size_t eid;
+
+ /* For IFs */
+ bool likely;
+
+ struct ir_block_s *owner;
+} ir_instr;
+
+/* block */
+typedef struct ir_block_s
+{
+ char *label;
+ lex_ctx 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;
+
+ /* For the temp-allocation */
+ size_t entry_id;
+ size_t eid;
+ bool is_return;
+
+ struct ir_function_s *owner;
+
+ bool generated;
+ size_t code_start;
+} ir_block;
+
+ir_value* ir_block_create_binop(ir_block*, lex_ctx, const char *label, int op, ir_value *left, ir_value *right);
+ir_value* ir_block_create_unary(ir_block*, lex_ctx, const char *label, int op, ir_value *operand);
+bool GMQCC_WARN ir_block_create_store_op(ir_block*, lex_ctx, int op, ir_value *target, ir_value *what);
+bool GMQCC_WARN ir_block_create_storep(ir_block*, lex_ctx, ir_value *target, ir_value *what);
+ir_value* ir_block_create_load_from_ent(ir_block*, lex_ctx, const char *label, ir_value *ent, ir_value *field, int outype);
+ir_value* ir_block_create_fieldaddress(ir_block*, lex_ctx, const char *label, ir_value *entity, ir_value *field);
+
+/* This is to create an instruction of the form
+ * <outtype>%label := opcode a, b
+ */
+ir_instr* ir_block_create_phi(ir_block*, lex_ctx, const char *label, int vtype);
+ir_value* ir_phi_value(ir_instr*);
+void ir_phi_add(ir_instr*, ir_block *b, ir_value *v);
+ir_instr* ir_block_create_call(ir_block*, lex_ctx, const char *label, ir_value *func, bool noreturn);
+ir_value* ir_call_value(ir_instr*);
+void ir_call_param(ir_instr*, ir_value*);
+
+bool GMQCC_WARN ir_block_create_return(ir_block*, lex_ctx, ir_value *opt_value);
+
+bool GMQCC_WARN ir_block_create_if(ir_block*, lex_ctx, ir_value *cond,
+ ir_block *ontrue, ir_block *onfalse);
+/* 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,
+ * whereas a 'jump' usually doesn't add any actual instruction.
+ */
+bool GMQCC_WARN ir_block_create_jump(ir_block*, lex_ctx, ir_block *to);
+bool GMQCC_WARN ir_block_create_goto(ir_block*, lex_ctx, ir_block *to);
+
+/* function */
+typedef struct ir_function_s
+{
+ char *name;
+ int outtype;
+ int *params;
+ ir_block **blocks;
+
+ uint32_t flags;
+
+ int builtin;
+
+ ir_value *value;
+
+ /* 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;
+
+ size_t allocated_locals;
+ size_t globaltemps;
+
+ ir_block* first;
+ ir_block* last;
+
+ lex_ctx context;
+
+ /* for prototypes - first we generate all the
+ * globals, and we remember teh function-defs
+ * so we can later fill in the entry pos
+ *
+ * remember the ID:
+ */
+ qcint code_function_def;
+
+ /* for temp allocation */
+ size_t run_id;
+
+ struct ir_builder_s *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 ctx, ir_function*, const char *label);
+
+/* builder */
+#define IR_HT_SIZE 1024
+typedef struct ir_builder_s
+{
+ char *name;
+ ir_function **functions;
+ ir_value **globals;
+ ir_value **fields;
+
+ ht htfunctions;
+ ht htglobals;
+ ht htfields;
+
+ ir_value **extparams;
+ ir_value **extparam_protos;
+
+ /* the highest func->allocated_locals */
+ size_t max_locals;
+ size_t max_globaltemps;
+ uint32_t first_common_local;
+ uint32_t first_common_globaltemp;
+
+ const char **filenames;
+ qcint *filestrings;
+ /* we cache the #IMMEDIATE string here */
+ qcint str_immediate;
+ /* there should just be this one nil */
+ ir_value *nil;
+ ir_value *reserved_va_count;
+} ir_builder;
+
+ir_builder* ir_builder_new(const char *modulename);
+void ir_builder_delete(ir_builder*);
+ir_function* ir_builder_create_function(ir_builder*, const char *name, int outtype);
+ir_value* ir_builder_create_global(ir_builder*, const char *name, int vtype);
+ir_value* ir_builder_create_field(ir_builder*, const char *name, int vtype);
+ir_value* ir_builder_get_va_count(ir_builder*);
+bool ir_builder_generate(code_t *, ir_builder *self, const char *filename);
+void ir_builder_dump(ir_builder*, int (*oprintf)(const char*, ...));
+
+/*
+ * This code assumes 32 bit floats while generating binary
+ * 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) == 4)?1:-1];
+
+#endif
projects / voretournament / voretournament.git / blobdiff