[PATCH] D125285: [BuildLibCalls] infer inreg param attrs from NumRegisterParameters

Eli Friedman via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue May 10 13:33:07 PDT 2022


efriedma added inline comments.


================
Comment at: llvm/test/Transforms/InstCombine/simplify-libcalls-inreg.ll:47
+
+; CHECK:     declare noundef i32 @sprintf(ptr inreg noalias nocapture noundef writeonly, ptr inreg nocapture noundef readonly, ...)
+; CHECK-NOT: declare noundef i32 @sprintf(ptr noalias nocapture noundef writeonly, ptr nocapture noundef readonly, ...)
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Is this inreg marking correct for sprintf?

Looking at clang output, we actually add inreg markings, but the backend ignores them.  I guess if we do the same thing, that's fine?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D125285/new/

https://reviews.llvm.org/D125285



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