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LoongArch is a NEW ISA which is different from MIPS #113564

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Merged
merged 5 commits into from
Mar 17, 2025
Merged

LoongArch is a NEW ISA which is different from MIPS #113564

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269053c
LoongArch is a NEW ISA which is different from MIPS
4Darmygeometry Mar 15, 2025
29100be
Merge branch 'dotnet:main' into main
4Darmygeometry Mar 16, 2025
ec570a9
Update src/coreclr/jit/codegenlinear.cpp
jkotas Mar 17, 2025
1ad05ee
Update src/coreclr/jit/codegenlinear.cpp
jkotas Mar 17, 2025
1558fd4
Merge branch 'dotnet:main' into main
4Darmygeometry Mar 17, 2025
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7 changes: 5 additions & 2 deletions src/coreclr/jit/codegenlinear.cpp
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Expand Up @@ -2484,8 +2484,11 @@ CodeGen::GenIntCastDesc::GenIntCastDesc(GenTreeCast* cast)
}

#if defined(TARGET_LOONGARCH64) || defined(TARGET_RISCV64)
// For LoongArch64's ISA which is same with the MIPS64 ISA, even the instructions of 32bits operation need
// the upper 32bits be sign-extended to 64 bits.
// TODO-LOONGARCH64:
// TODO-RISCV64:
// LoongArch64 and RiscV64 ABIs require 32-bit values to be sign-extended to 64-bits.
// We apply the sign-extension unconditionally here to avoid corner case bugs, even
// though it may not be strictly necessary in all cases.
m_extendKind = SIGN_EXTEND_INT;
#else
m_extendKind = COPY;
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