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Add dynarec optimisation for UOP_MOV_IMM, to avoid register allocation

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if the destination register won't be immediately used again.
This commit is contained in:
SarahW 2020-09-16 20:47:12 +01:00
commit 25fe224ea9
12 changed files with 216 additions and 1 deletions
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5
src/codegen_reg.h
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@ -396,6 +396,11 @@ void codegen_reg_flush_invalidate(struct ir_data_t *ir, codeblock_t *block);
/*Register ir_reg usage for this uOP. This ensures that required registers aren't evicted*/
void codegen_reg_alloc_register(ir_reg_t dest_reg_a, ir_reg_t src_reg_a, ir_reg_t src_reg_b, ir_reg_t src_reg_c);
#ifdef CODEGEN_BACKEND_HAS_MOV_IMM
int codegen_reg_is_loaded(ir_reg_t ir_reg);
void codegen_reg_write_imm(codeblock_t *block, ir_reg_t ir_reg, uint32_t imm_data);
#endif
ir_host_reg_t codegen_reg_alloc_read_reg(codeblock_t *block, ir_reg_t ir_reg, int *host_reg_idx);
ir_host_reg_t codegen_reg_alloc_write_reg(codeblock_t *block, ir_reg_t ir_reg);