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fixed the split error for LoongArch64. #101656

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merged 4 commits into from Apr 29, 2024
Merged

fixed the split error for LoongArch64. #101656

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896aa2b
fixed the split error for LoongArch64.
shushanhf Apr 28, 2024
3bf26c9
amend code for CRs.
shushanhf Apr 28, 2024
6bf9d17
amend the splitting's judge independent of the `var->lvIsSplit` which
shushanhf Apr 28, 2024
6b223d3
revert `IsSplitAcrossRegistersAndStack()`.
shushanhf Apr 29, 2024
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20 changes: 14 additions & 6 deletions src/coreclr/jit/codegencommon.cpp
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Expand Up @@ -4119,7 +4119,7 @@ void CodeGen::genEnregisterOSRArgsAndLocals()
}
}

#if defined(SWIFT_SUPPORT) || defined(TARGET_RISCV64)
#if defined(SWIFT_SUPPORT) || defined(TARGET_RISCV64) || defined(TARGET_LOONGARCH64)
//-----------------------------------------------------------------------------
// genHomeSwiftStructParameters: Move the incoming segment to the local stack frame.
//
Expand Down Expand Up @@ -4159,8 +4159,16 @@ void CodeGen::genHomeStackSegment(unsigned lclNum,
}
emitAttr size = emitTypeSize(loadType);

int loadOffset =
-(isFramePointerUsed() ? genCallerSPtoFPdelta() : genCallerSPtoInitialSPdelta()) + (int)seg.GetStackOffset();
int loadOffset;
if (isFramePointerUsed())
{
loadOffset = -genCallerSPtoFPdelta();
}
else
{
loadOffset = -(int)seg.GetStackOffset() - genCallerSPtoInitialSPdelta();
}

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#ifdef TARGET_XARCH
GetEmitter()->emitIns_R_AR(ins_Load(loadType), size, initReg, genFramePointerReg(), loadOffset);
#else
Expand All @@ -4171,7 +4179,7 @@ void CodeGen::genHomeStackSegment(unsigned lclNum,
if (initRegStillZeroed)
*initRegStillZeroed = false;
}
#endif // defined(SWIFT_SUPPORT) || defined(TARGET_RISCV64)
#endif // defined(SWIFT_SUPPORT) || defined(TARGET_RISCV64) || defined(TARGET_LOONGARCH64)

#ifdef SWIFT_SUPPORT

Expand Down Expand Up @@ -4248,7 +4256,7 @@ void CodeGen::genHomeSwiftStructParameters(bool handleStack)
//
void CodeGen::genHomeStackPartOfSplitParameter(regNumber initReg, bool* initRegStillZeroed)
{
#ifdef TARGET_RISCV64
#if defined(TARGET_RISCV64) || defined(TARGET_LOONGARCH64)
unsigned lclNum = 0;
for (; lclNum < compiler->info.compArgsCount; lclNum++)
{
Expand All @@ -4273,7 +4281,7 @@ void CodeGen::genHomeStackPartOfSplitParameter(regNumber initReg, bool* initRegS
}
break;
}
#endif
#endif // TARGET_RISCV64 || TARGET_LOONGARCH64
}

/*-----------------------------------------------------------------------------
Expand Down