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(parent: f4423b1) | patch
xchg which references a memory operand does not need to lock prefix. Atomicity is...
authorEvan Cheng <evan.cheng@apple.com>
Sat, 19 Apr 2008 01:20:30 +0000 (01:20 +0000)
committerEvan Cheng <evan.cheng@apple.com>
Sat, 19 Apr 2008 01:20:30 +0000 (01:20 +0000)
commitbb6939dcffd9cb2e6d98480e12ce5badf7b56189
treeda88fc625134803c5d0f4350fc032b61997f9b1dtree | snapshot
parentf4423b1e458e08e61e2978547ff631b442398f69commit | diff
xchg which references a memory operand does not need to lock prefix. Atomicity is guaranteed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49946 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86InstrInfo.td diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors