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[CHERIoT] Preserve/propagate the cheriot subarch in more places. #208

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Merged
merged 1 commit into from
Jul 31, 2025
Merged

[CHERIoT] Preserve/propagate the cheriot subarch in more places. #208

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3 changes: 2 additions & 1 deletion clang/lib/Driver/Driver.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -791,8 +791,9 @@ static llvm::Triple computeTargetTriple(const Driver &D,
ArchName, /*EnableExperimentalExtensions=*/true);
if (!llvm::errorToBool(ISAInfo.takeError())) {
unsigned XLen = (*ISAInfo)->getXLen();
// CHERIOT: Preserve the subarch if it was set.
if (XLen == 32)
Target.setArch(llvm::Triple::riscv32);
Target.setArch(llvm::Triple::riscv32, Target.getSubArch());
else if (XLen == 64)
Target.setArch(llvm::Triple::riscv64);
}
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9 changes: 9 additions & 0 deletions llvm/lib/TargetParser/Triple.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -159,6 +159,15 @@ StringRef Triple::getArchName(ArchType Kind, SubArchType SubArch) {
break;
}
break;
case Triple::riscv32: {
switch (SubArch) {
case Triple::RISCV32SubArch_cheriot_v1:
return "riscv32cheriotv1";
default:
break;
}
break;
}
default:
break;
}
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