On Wed, May 26, 2021 at 04:16:31PM -0500, Peter Bergner via Gcc-patches wrote:
> Using an MMA builtin within an openmp parallel code block leads to an SSA
> verification ICE on the temporaries we create while expanding the MMA builtins
> at gimple time. The solution is to use create_tmp_reg_or_ssa_name(), which
> knows when to create either an SSA or register temporary.
>
> This fixes the ICE and bootstraps and regtests with no regressions.
> Ok for trunk?
LGTM.
>
> The same ICE occurs in GCC 11 and GCC 10. Ok to backport to those release
> branches after some burn in on trunk?
Yes.
>
> Peter
>
>
> gcc/
> PR target/100777
> * config/rs6000/rs6000-call.c (rs6000_gimple_fold_mma_builtin): Use
> create_tmp_reg_or_ssa_name().
>
> gcc/testsuite/
> PR target/100777
> * gcc.target/powerpc/pr100777.c: New test.
Jakub
