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Discard temp regs right away, some helper funcs.

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Unknown W. Brackets 2013-02-16 10:18:13 -08:00
parent 0d5da967eb
commit 0bd382c518
2 changed files with 15 additions and 13 deletions
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18
Core/MIPS/x86/RegCacheFPU.cpp
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@ -82,6 +82,8 @@ void FPURegCache::MapRegsV(const u8 *v, VectorSize sz, int flags) {
void FPURegCache::ReleaseSpillLocks() {
for (int i = 0; i < NUM_MIPS_FPRS; i++)
regs[i].locked = false;
for (int i = TEMP0; i < TEMP0 + NUM_TEMPS; ++i)
DiscardR(i);
}
void FPURegCache::BindToRegister(const int i, bool doLoad, bool makeDirty) {
@ -126,8 +128,7 @@ void FPURegCache::StoreFromRegister(int i) {
}
}
void FPURegCache::DiscardR(int i)
{
void FPURegCache::DiscardR(int i) {
_assert_msg_(DYNA_REC, !regs[i].location.IsImm(), "FPU can't handle imm yet.");
if (regs[i].away) {
X64Reg xr = regs[i].location.GetSimpleReg();
@ -142,6 +143,10 @@ void FPURegCache::DiscardR(int i)
}
}
bool FPURegCache::IsTemp(X64Reg xr) {
return xregs[xr].mipsReg >= TEMP0;
}
void FPURegCache::Flush() {
for (int i = 0; i < TEMP0; i++) {
if (regs[i].locked) {
@ -210,15 +215,6 @@ X64Reg FPURegCache::GetFreeXReg() {
}
//Okay, not found :( Force grab one
// Maybe a temp reg?
for (int i = TEMP0; i < NUM_MIPS_FPRS; ++i) {
if (regs[i].away && !regs[i].locked) {
X64Reg xr = regs[i].location.GetSimpleReg();
DiscardR(i);
return xr;
}
}
//TODO - add a pass to grab xregs whose mipsreg is not used in the next 3 instructions
for (int i = 0; i < aCount; i++) {
X64Reg xr = (X64Reg)aOrder[i];

10
Core/MIPS/x86/RegCacheFPU.h
View file

@ -26,7 +26,8 @@ using namespace Gen;
// GPRs are numbered 0 to 31
// VFPU regs are numbered 32 to 160.
// VFPU regs are numbered 32 to 159.
// Then we have some temp regs for VFPU handling from 160 to 167.
enum {
NUM_TEMPS = 4,
@ -34,6 +35,7 @@ enum {
TEMP1 = TEMP0 + 1,
TEMP2 = TEMP0 + 2,
TEMP3 = TEMP0 + 3,
TEMP4 = TEMP0 + 4,
NUM_MIPS_FPRS = 32 + 128 + NUM_TEMPS,
};
@ -75,7 +77,11 @@ public:
StoreFromRegister(preg + 32);
}
OpArg GetDefaultLocation(int reg) const;
void DiscardR(int preg);
void DiscardR(int freg);
void DiscardV(int vreg) {
DiscardR(vreg + 32);
}
bool IsTemp(X64Reg xreg);
void SetEmitter(XEmitter *emitter) {emit = emitter;}