[llvm-bugs] [Bug 3877] ARM: CodeGen fails to legalize AtomicCmpSwap

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=3877

John Brawn <john.brawn at arm.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |john.brawn at arm.com
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #7 from John Brawn <john.brawn at arm.com> ---
This was fixed long ago. With LLVM 3.5.0 and later I can compile the following:

  define i32 @fn(i32 *%ptr, i32 %cmp, i32 %new) {
    %val = cmpxchg i32* %ptr, i32 %cmp, i32 %new acq_rel monotonic
    %ret = extractvalue { i32, i1 } %val, 0
    ret i32 %ret
  }

with no problems.

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