https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122961
Bug ID: 122961
Summary: vect-reduc-dot-s8b.c and vect-reduc-pattern-2c.c XPASS
since r16-4411-gb6e802fd55d
Product: gcc
Version: 16.0
URL: https://linaro.atlassian.net/browse/GNU-1704
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: clyon at gcc dot gnu.org
Target Milestone: ---
Target: arm aarch64 x86_64
Since commit r16-4411-gb6e802fd55d the Linaro CI has detected 4 XPASS:
Running gcc:gcc.dg/vect/vect.exp ...
XPASS: gcc.dg/vect/vect-reduc-dot-s8b.c -flto -ffat-lto-objects
scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected(?:(?!Analysis
failed).)*Analysis succeeded" 1
XPASS: gcc.dg/vect/vect-reduc-dot-s8b.c scan-tree-dump-times vect
"vect_recog_dot_prod_pattern: detected(?:(?!Analysis failed).)*Analysis
succeeded" 1
XPASS: gcc.dg/vect/vect-reduc-pattern-2c.c -flto -ffat-lto-objects
scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1
XPASS: gcc.dg/vect/vect-reduc-pattern-2c.c scan-tree-dump-times vect
"vect_recog_widen_sum_pattern: detected" 1
This happens on aarch64 and arm (at least configured --with-mode=thumb
--with-arch=armv8-a+simd --with-fpu=crypto-neon-fp-armv8 --with-float=hard)
Richi mentioned the same XPASSes on x86_64.
