https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113167
Bug ID: 113167
Summary: [14 Regression] gcc.dg/tree-ssa/gen-vect-26.c started
failing many targets after recent change
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: law at gcc dot gnu.org
Target Milestone: ---
Many targets are now seeing this failure:
FAIL: gcc.dg/tree-ssa/gen-vect-26.c scan-tree-dump-times vect "Alignment of
access forced using peeling" 1
Which has been bisected to:
commit 01f4251b8775c832a92d55e2df57c9ac72eaceef (HEAD)
Author: Tamar Christina <tamar.christ...@arm.com>
Date: Sun Dec 24 19:18:12 2023 +0000
middle-end: Support vectorization of loops with multiple exits.
Hi All,
This patch adds initial support for early break vectorization in GCC. In
other
words it implements support for vectorization of loops with multiple exits.
The support is added for any target that implements a vector cbranch optab,
this includes both fully masked and non-masked targets.
[ ... ]
The regression is seen on just about every cross target I'm testing. So just
to pick one, fr30-elf. Since this is a scan failure, you don't need a full
toolchain to reproduce, just the compiler proper.
