[Bug rtl-optimization/88233] combine fails to merge insns leaving unneeded reg copies

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88233

--- Comment #4 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Mon Jul  8 20:38:46 2019
New Revision: 273245

URL: https://gcc.gnu.org/viewcvs?rev=273245&root=gcc&view=rev
Log:
rs6000: Add testcase for PR88233

This testcase tests that with -mcpu=power8 we do not generate any
mtvsr* instructions, and we do the copy with {l,st}xvd2x.


gcc/testsuite/
        PR rtl-optimization/88233
        * gcc.target/powerpc/pr88233.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.target/powerpc/pr88233.c
Modified:
    trunk/gcc/testsuite/ChangeLog