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IR: FPCompare{32,64} now return NZCV flags instead of implicitly setting them

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This commit is contained in:
MerryMage 2018-02-05 12:16:01 +00:00
parent 2ee39d6b36
commit aac5af50e2
10 changed files with 51 additions and 26 deletions
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2
src/frontend/A32/ir_emitter.cpp
View file

@ -154,7 +154,7 @@ IR::U32 IREmitter::GetFpscrNZCV() {
return Inst<IR::U32>(Opcode::A32GetFpscrNZCV);
}
void IREmitter::SetFpscrNZCV(const IR::U32& new_fpscr_nzcv) {
void IREmitter::SetFpscrNZCV(const IR::NZCV& new_fpscr_nzcv) {
Inst(Opcode::A32SetFpscrNZCV, new_fpscr_nzcv);
}

2
src/frontend/A32/ir_emitter.h
View file

@ -64,7 +64,7 @@ public:
IR::U32 GetFpscr();
void SetFpscr(const IR::U32& new_fpscr);
IR::U32 GetFpscrNZCV();
void SetFpscrNZCV(const IR::U32& new_fpscr_nzcv);
void SetFpscrNZCV(const IR::NZCV& new_fpscr_nzcv);
void ClearExclusive();
void SetExclusive(const IR::U32& vaddr, size_t byte_size);

9
src/frontend/A32/translate/translate_arm/vfp2.cpp
View file

@ -473,7 +473,8 @@ bool ArmTranslatorVisitor::vfp2_VCMP(Cond cond, bool D, size_t Vd, bool sz, bool
if (ConditionPassed(cond)) {
auto reg_d = ir.GetExtendedRegister(d);
auto reg_m = ir.GetExtendedRegister(m);
ir.FPCompare(reg_d, reg_m, exc_on_qnan, true);
auto nzcv = ir.FPCompare(reg_d, reg_m, exc_on_qnan, true);
ir.SetFpscrNZCV(nzcv);
}
return true;
}
@ -486,9 +487,11 @@ bool ArmTranslatorVisitor::vfp2_VCMP_zero(Cond cond, bool D, size_t Vd, bool sz,
if (ConditionPassed(cond)) {
auto reg_d = ir.GetExtendedRegister(d);
if (sz) {
ir.FPCompare(reg_d, ir.Imm64(0), exc_on_qnan, true);
auto nzcv = ir.FPCompare(reg_d, ir.Imm64(0), exc_on_qnan, true);
ir.SetFpscrNZCV(nzcv);
} else {
ir.FPCompare(reg_d, ir.Imm32(0), exc_on_qnan, true);
auto nzcv = ir.FPCompare(reg_d, ir.Imm32(0), exc_on_qnan, true);
ir.SetFpscrNZCV(nzcv);
}
}
return true;