tree b5e5430210f42121d6ff2696e5495972271bbdf5
parent e0058b4b0c4d162a3b3ff2ad8a87c979928ba016
author Eli Friedman <eli.friedman@gmail.com> 1311908732 +0000
committer Eli Friedman <eli.friedman@gmail.com> 1311908732 +0000

Misc optimizer+codegen work for 'cmpxchg' and 'atomicrmw'.  They appear to be
working on x86 (at least for trivial testcases); other architectures will
need more work so that they actually emit the appropriate instructions for
orderings stricter than 'monotonic'. (As far as I can tell, the ARM, PPC,
Mips, and Alpha backends need such changes.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136457 91177308-0d34-0410-b5e6-96231b3b80d8