[PATCH] D93946: [FuncAttrs] Infer noreturn

[Sanne Wouda via Phabricator via llvm-commits]

sanwou01 added a comment.

Hi folks, I'm afraid an 8% regression in h264ref (SPEC INT 2006) bisects to this patch. This in on AArch64 with -flto on a Neoverse-N1 based system, but I wouldn't be surprised if this showed up elsewhere too.

How do people feel about reverting the patch while we investigate the regression? To start with, I'll try to find out why this has caused the drop in performance: it doesn't seem immediately obvious to me.


Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D93946