[PATCH] D143471: [X86][MC][NFC] Refine code in X86MCCodeEmitter.cpp about opcode prefix

[Mikael Holmén via Phabricator via llvm-commits]

uabelho added a comment.

Hi,

I noticed that if I run lit tests with ubsan built binaries with this patch there are many many tests failing like

  ../lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp:222:19: runtime error: left shift of negative value -1


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D143471/new/

https://reviews.llvm.org/D143471