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x64ABI: enhance MOVTwo to take an offset

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This lets us merge displacements into MOVTwo in trampolines.
This commit is contained in:
Fiora 2015-01-02 15:32:23 -08:00
commit 53b44ccb3a
3 changed files with 25 additions and 16 deletions
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21
Source/Core/Core/PowerPC/JitCommon/TrampolineCache.cpp
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@ -48,10 +48,7 @@ const u8* TrampolineCache::GenerateReadTrampoline(const InstructionInfo &info, B
ABI_PushRegistersAndAdjustStack(registersInUse, 0);
int dataRegSize = info.operandSize == 8 ? 64 : 32;
MOVTwo(dataRegSize, ABI_PARAM1, addrReg, ABI_PARAM2, dataReg);
if (info.displacement)
ADD(32, R(ABI_PARAM1), Imm32(info.displacement));
MOVTwo(dataRegSize, ABI_PARAM1, addrReg, info.displacement, ABI_PARAM2, dataReg);
switch (info.operandSize)
{
@ -102,8 +99,13 @@ const u8* TrampolineCache::GenerateWriteTrampoline(const InstructionInfo &info,
if (info.hasImmediate)
{
if (addrReg != ABI_PARAM2)
MOV(64, R(ABI_PARAM2), R(addrReg));
if (addrReg != ABI_PARAM2 && info.displacement)
LEA(32, ABI_PARAM2, MDisp(addrReg, info.displacement));
else if (addrReg != ABI_PARAM2)
MOV(32, R(ABI_PARAM2), R(addrReg));
else if (info.displacement)
ADD(32, R(ABI_PARAM2), Imm32(info.displacement));
// we have to swap back the immediate to pass it to the write functions
switch (info.operandSize)
{
@ -123,11 +125,8 @@ const u8* TrampolineCache::GenerateWriteTrampoline(const InstructionInfo &info,
}
else
{
MOVTwo(64, ABI_PARAM1, dataReg, ABI_PARAM2, addrReg);
}
if (info.displacement)
{
ADD(32, R(ABI_PARAM2), Imm32(info.displacement));
int dataRegSize = info.operandSize == 8 ? 64 : 32;
MOVTwo(dataRegSize, ABI_PARAM2, addrReg, info.displacement, ABI_PARAM1, dataReg);
}
switch (info.operandSize)