Rafael Espindola 28b45aa83e Use a memcpy so that type based alias analysis sees the change. ...

The other option would be to do something like

if (that.isSingleWord())
  VAL = that.VAL;
else
  pVal = that.pVal

This bug was causing 86TTI::getIntImmCost to be miscompiled in a LTO
bootstrap in stage2, causing the build of stage3 to fail.

LLVM is getting quiet good at exploiting this. Not sure if there is anything
a sanitizer could do to help

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222294 91177308-0d34-0410-b5e6-96231b3b80d8

2014-11-19 01:02:22 +00:00

..

llvm

Use a memcpy so that type based alias analysis sees the change.

2014-11-19 01:02:22 +00:00

llvm-c

libLTO: Allow linker to choose context of modules and codegen

2014-11-11 23:19:23 +00:00