[LLVMbugs] [Bug 20376] may fail to recognize potential EFLAGS clobbers for compare-exchange operations

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Oct 23 15:32:35 PDT 2014


Tim Northover <t.p.northover at gmail.com> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #9 from Tim Northover <t.p.northover at gmail.com> ---
OK, the change had no effect on the test-suite, and seems to pass all the spot
checks I've performed (eliding the COPY where possible, emitting it where
necessary), so I've committed it as r220529.

I think even if we want to improve cmpxchg CodeGen more, or take a completely
different approach to the problem we'd want ScheduleDAG to represent that
EFLAGS dependency properly.

You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20141023/bd89f598/attachment.html>

More information about the llvm-bugs mailing list