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VFP: Implement VABS

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This commit is contained in:
MerryMage 2016-08-07 01:27:18 +01:00
parent f88b1b4c2e
commit ce6b5f8210
10 changed files with 59 additions and 1 deletions
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16
src/backend_x64/emit_x64.cpp
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@ -1090,6 +1090,22 @@ static void DefaultNaN64(XEmitter* code, Routines* routines, X64Reg xmm_value) {
code->SetJumpTarget(fixup);
}
void EmitX64::EmitFPAbs32(IR::Block& block, IR::Inst* inst) {
IR::Value a = inst->GetArg(0);
X64Reg result = reg_alloc.UseDefRegister(a, inst, any_xmm);
code->PAND(result, routines->MFloatNonSignMask32());
}
void EmitX64::EmitFPAbs64(IR::Block& block, IR::Inst* inst) {
IR::Value a = inst->GetArg(0);
X64Reg result = reg_alloc.UseDefRegister(a, inst, any_xmm);
code->PAND(result, routines->MFloatNonSignMask64());
}
void EmitX64::EmitFPAdd32(IR::Block& block, IR::Inst* inst) {
IR::Value a = inst->GetArg(0);
IR::Value b = inst->GetArg(1);

2
src/backend_x64/routines.cpp
View file

@ -36,6 +36,8 @@ void Routines::GenConstants() {
Write32(0x80000000u);
const_FloatNaN32 = AlignCode16();
Write32(0x7fc00000u);
const_FloatNonSignMask32 = AlignCode16();
Write64(0x7fffffffu);
const_FloatNegativeZero64 = AlignCode16();
Write64(0x8000000000000000u);
const_FloatNaN64 = AlignCode16();

4
src/backend_x64/routines.h
View file

@ -25,6 +25,9 @@ public:
Gen::OpArg MFloatNaN32() const {
return Gen::M(const_FloatNaN32);
}
Gen::OpArg MFloatNonSignMask32() const {
return Gen::M(const_FloatNonSignMask32);
}
Gen::OpArg MFloatNegativeZero64() const {
return Gen::M(const_FloatNegativeZero64);
}
@ -41,6 +44,7 @@ public:
private:
const u8* const_FloatNegativeZero32;
const u8* const_FloatNaN32;
const u8* const_FloatNonSignMask32;
const u8* const_FloatNegativeZero64;
const u8* const_FloatNaN64;
const u8* const_FloatNonSignMask64;