https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115493
Bug ID: 115493
Summary: gcc.c-torture/execute/pr94734.c fails on MVE after
gcc-15-1054-g202a9c8fe7d
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: clyon at gcc dot gnu.org
Target Milestone: ---
Created attachment 58428
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58428&action=edit
Code generated before the offending GCC commit (works)
As reported in https://linaro.atlassian.net/browse/GNU-1255, we are seeing
FAIL: gcc.c-torture/execute/pr94734.c -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions execution test
FAIL: gcc.c-torture/execute/pr94734.c -O3 -g execution test
after g:202a9c8fe7d
with GCC configured with:
--disable-multilib --with-mode=thumb --with-arch=armv8.1-m.main+mve.fp+fp.dp
--with-float=hard --target=arm-eabi
and the testsuite executed with:
qemu/-mthumb/-march=armv8.1-m.main+mve.fp+fp.dp/-mtune=cortex-m55/-mfloat-abi=hard/-mfpu=auto
I'm attaching the annotated generated asm, the offending code is when calling
if (baz (25, 4, 7) != 22)
Maybe it's a problem with how we model predicates for MVE.
