[Bug middle-end/85586] [8/9 Regression] Optimizer produces different result on -O2 and -O3

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85586

Christophe Lyon <clyon at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |clyon at gcc dot gnu.org

--- Comment #7 from Christophe Lyon <clyon at gcc dot gnu.org> ---
Hi Richard,
The new testcase fails on armeb when gcc is configured --with-fpu neon-fp16:
FAIL: gcc.dg/vect/pr85586.c -flto -ffat-lto-objects  scan-tree-dump-times vect
"LOOP VECTORIZED" 1
FAIL: gcc.dg/vect/pr85586.c scan-tree-dump-times vect "LOOP VECTORIZED" 1


GCC configure flags:
--target armeb-none-linux-gnueabihf
--with-mode arm
--with-cpu cortex-a9
--with-fpu neon-fp16


Using vfpv3-d16-fp16 as default fpu skips that part of the test.