[PATCH] D65019: [ARM] push LR before __gnu_mcount_nc on ARM

[Jian Cai via Phabricator via cfe-commits]

jcai19 marked 4 inline comments as done.
jcai19 added inline comments.


================
Comment at: llvm/lib/Target/ARM/ARMFastISel.cpp:2418
+  bool PushLR = IntrinsicName &&
+      !memcmp(IntrinsicName, "\01__gnu_mcount_nc", sizeof("\01__gnu_mcount_nc"));
+  unsigned CallOpc = ARMSelectCallOp(UseReg, PushLR);
----------------
nickdesaulniers wrote:
> `memcmp` is a code smell in a C++ codebase, but I see that `IntrinsicName` is a C style string.  Is there a reason why `strncmp` isn't used?
Good catch! I was thinking about one of str* functions and somehow ended up using memcpy. Guess I haven't written C code for a while :). Anyway, maybe strcmp is better here as the size of the two strings should match too?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D65019/new/

https://reviews.llvm.org/D65019