[PATCH] D92695: [X86ISelLowering] don't emit frame pointers for eflags intrinsics.

[Bill Wendling via Phabricator via llvm-commits]

void added inline comments.


================
Comment at: llvm/lib/Target/X86/X86ISelLowering.cpp:27271
+      else
+        MF.getFunction().addFnAttr(Attribute::NoRedZone);
       // Don't do anything here, we will expand these intrinsics out later
----------------
craig.topper wrote:
> Do we have precedent for modifying an IR function from inside of a MachineFunctionPass.
I believe it's generally frowned upon.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D92695/new/

https://reviews.llvm.org/D92695