subject:"\[PATCH, rs6000\] Fix PR target\/70168"

Re: [PATCH, rs6000] Fix PR target/70168

2016-03-10 Thread David Edelsohn

On Thu, Mar 10, 2016 at 6:10 PM, Ulrich Weigand wrote: > Hello, > > this patch fixes PR target/70168, a wrong code generation problem > caused by rs6000_expand_atomic_compare_and_swap not properly handling > the case where changing retval clobbers newval due to a register overlap. > > Tested with

[PATCH, rs6000] Fix PR target/70168

2016-03-10 Thread Ulrich Weigand

Hello, this patch fixes PR target/70168, a wrong code generation problem caused by rs6000_expand_atomic_compare_and_swap not properly handling the case where changing retval clobbers newval due to a register overlap. Tested with no regressions on powerpc64le-linux on mainline and gcc-5-branch. O