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Added lazy flags for ROL and ROR.

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This commit is contained in:
SarahW 2019-03-30 14:41:02 +00:00
commit e2a1ae696f
3 changed files with 85 additions and 26 deletions
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12
src/codegen_ops_branch.c
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@ -189,7 +189,7 @@ static int ropJE_common(codeblock_t *block, ir_data_t *ir, uint32_t dest_addr, u
if (ZF_SET() && codegen_can_unroll(block, ir, next_pc, dest_addr))
{
if (!codegen_flags_changed || (cpu_state.flags_op == FLAGS_UNKNOWN))
if (!codegen_flags_changed || !flags_res_valid())
{
uop_CALL_FUNC_RESULT(ir, IREG_temp0, ZF_SET);
jump_uop = uop_CMP_IMM_JNZ_DEST(ir, IREG_temp0, 0);
@ -205,7 +205,7 @@ static int ropJE_common(codeblock_t *block, ir_data_t *ir, uint32_t dest_addr, u
}
else
{
if (!codegen_flags_changed || (cpu_state.flags_op == FLAGS_UNKNOWN))
if (!codegen_flags_changed || !flags_res_valid())
{
uop_CALL_FUNC_RESULT(ir, IREG_temp0, ZF_SET);
jump_uop = uop_CMP_IMM_JZ_DEST(ir, IREG_temp0, 0);
@ -226,7 +226,7 @@ int ropJNE_common(codeblock_t *block, ir_data_t *ir, uint32_t dest_addr, uint32_
if (!ZF_SET() && codegen_can_unroll(block, ir, next_pc, dest_addr))
{
if (!codegen_flags_changed || (cpu_state.flags_op == FLAGS_UNKNOWN))
if (!codegen_flags_changed || !flags_res_valid())
{
uop_CALL_FUNC_RESULT(ir, IREG_temp0, ZF_SET);
jump_uop = uop_CMP_IMM_JZ_DEST(ir, IREG_temp0, 0);
@ -242,7 +242,7 @@ int ropJNE_common(codeblock_t *block, ir_data_t *ir, uint32_t dest_addr, uint32_
}
else
{
if (!codegen_flags_changed || (cpu_state.flags_op == FLAGS_UNKNOWN))
if (!codegen_flags_changed || !flags_res_valid())
{
uop_CALL_FUNC_RESULT(ir, IREG_temp0, ZF_SET);
jump_uop = uop_CMP_IMM_JNZ_DEST(ir, IREG_temp0, 0);
@ -954,7 +954,7 @@ uint32_t ropLOOPE(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fe
uop_SUB_IMM(ir, IREG_CX, IREG_CX, 1);
jump_uop = uop_CMP_IMM_JZ_DEST(ir, IREG_CX, 0);
}
if (!codegen_flags_changed || (cpu_state.flags_op == FLAGS_UNKNOWN))
if (!codegen_flags_changed || !flags_res_valid())
{
uop_CALL_FUNC_RESULT(ir, IREG_temp0, ZF_SET);
jump_uop2 = uop_CMP_IMM_JZ_DEST(ir, IREG_temp0, 0);
@ -990,7 +990,7 @@ uint32_t ropLOOPNE(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t f
uop_SUB_IMM(ir, IREG_CX, IREG_CX, 1);
jump_uop = uop_CMP_IMM_JZ_DEST(ir, IREG_CX, 0);
}
if (!codegen_flags_changed || (cpu_state.flags_op == FLAGS_UNKNOWN))
if (!codegen_flags_changed || !flags_res_valid())
{
uop_CALL_FUNC_RESULT(ir, IREG_temp0, ZF_SET);
jump_uop2 = uop_CMP_IMM_JNZ_DEST(ir, IREG_temp0, 0);