craig.topper added inline comments.
================
Comment at: clang/lib/Basic/Targets/RISCV.cpp:259
.Case("riscv64", Is64Bit)
+ .Case("64bit", Is64Bit)
.Case("m", HasM)
----------------
frasercrmck wrote:
> craig.topper wrote:
> > frasercrmck wrote:
> > > What's the difference between this new feature and `riscv64` above?
> > The name I added to initFeatureMap has to match the feature name in
> > RISCV.td because it will end up in the target-features attribute in IR.
> >
> > SemaChecking just calls hasFeature, but CodeGenFunction also checks builtin
> > features using the feature map. We check features in SemaChecking because
> > the CodeGenFunction diagnostic isn’t phrased well for RISCV.
> Ah I see, so since it has to match our `"64bit"` `SubtargetFeature` we can't
> reuse `"riscv64"`? Thanks.
Correct.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D99984/new/
https://reviews.llvm.org/D99984
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