112 lines
1.9 KiB
C
112 lines
1.9 KiB
C
#include "mcg.h"
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static int next_id = 0;
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struct ir* new_ir0(int opcode, int size)
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{
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struct ir* ir = calloc(sizeof(struct ir), 1);
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ir->id = next_id++;
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ir->opcode = opcode;
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ir->size = size;
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return ir;
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}
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struct ir* new_ir1(int opcode, int size,
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struct ir* left)
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{
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struct ir* ir = new_ir0(opcode, size);
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ir->left = left;
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return ir;
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}
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struct ir* new_ir2(int opcode, int size,
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struct ir* left, struct ir* right)
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{
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struct ir* ir = new_ir0(opcode, size);
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ir->left = left;
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ir->right = right;
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return ir;
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}
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struct ir* new_labelir(const char* label)
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{
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struct ir* ir = new_ir0(IR_LABEL, EM_pointersize);
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ir->u.lvalue = label;
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return ir;
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}
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struct ir* new_wordir(arith value)
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{
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struct ir* ir = new_ir0(IR_ICONST, EM_wordsize);
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ir->u.ivalue = value;
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return ir;
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}
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struct ir* new_regir(int reg)
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{
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struct ir* ir = new_ir0(IR_REG, EM_pointersize);
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ir->u.rvalue = reg;
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return ir;
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}
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struct ir* new_bbir(struct basicblock* bb)
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{
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struct ir* ir = new_ir0(IR_BLOCK, EM_pointersize);
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ir->u.bvalue = bb;
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return ir;
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}
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struct ir* new_anyir(int size)
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{
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return new_ir0(IR_ANY, size);
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}
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struct ir* new_phiir(int size)
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{
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return new_ir0(IR_PHI, size);
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}
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void ir_print(const struct ir* ir)
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{
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if (ir->left)
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ir_print(ir->left);
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if (ir->right)
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ir_print(ir->right);
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printf("\t; %c ",
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ir->is_sequence ? 'S' : ' ');
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printf("$%d = ", ir->id);
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printf("%s%d(",
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ir_names[ir->opcode],
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ir->size);
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switch (ir->opcode)
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{
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case IR_ICONST:
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printf("%d", ir->u.ivalue);
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break;
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case IR_LABEL:
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printf("%s", ir->u.lvalue);
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break;
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case IR_REG:
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printf("%d", ir->u.rvalue);
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break;
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case IR_BLOCK:
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printf("%s", ir->u.bvalue->name);
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break;
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default:
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if (ir->left)
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printf("$%d", ir->left->id);
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if (ir->right)
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printf(", $%d", ir->right->id);
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}
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printf(")\n");
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}
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/* vim: set sw=4 ts=4 expandtab : */
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