[PATCH] D151730: [RISCV] Support target attribute for function

[Craig Topper via Phabricator via cfe-commits]

craig.topper added inline comments.


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Comment at: clang/lib/Basic/Targets/RISCV.cpp:370
+                                 std::vector<std::string> &Features) {
+  Features.push_back("__RISCV_TargetAttrNeedOverride");
+  auto RII = llvm::RISCVISAInfo::parseArchString(
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Why do we need "__RISCV_TargetAttrNeedOverride"?


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Comment at: clang/lib/Basic/Targets/RISCV.cpp:434
+        if (MarchFromCPU != "") {
+          Ret.Features.clear();
+          handleFullArchString(MarchFromCPU, Ret.Features);
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BeMg wrote:
> craig.topper wrote:
> > Why does this clear Ret.Features, but full-arch-string doesn't?
> I think full-arch-string also clear the Ret.Features in line 398 right after `if (Feature.startswith("arch="))`.
Thanks. I missed it.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D151730/new/

https://reviews.llvm.org/D151730