MaskRay added a comment.
I notice that in gcc, -march/-mtune/-mcpu are handled in gcc/config/* and every
port may have somewhat different behaviors. E.g. x86 and aarch64 are different
(and I suspect x86 has the weird behavior).
Have you checked that whether this matches GCC? We need some clang/test/Driver
tests for `"-cc1"{{.*}} "-target-cpu" "..."`
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D130273/new/
https://reviews.llvm.org/D130273
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