https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126527
Bug ID: 126527
Summary: Regression in 16.1.0 against 15.2.0 at OpenBSD/sparc64
Product: gcc
Version: 16.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: kirill at korins dot ky
Target Milestone: ---
Created attachment 65190
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65190&action=edit
minimal reproducer
Here a trivial reproducer of that regression.
I run it as:
eg++ -O1 \
sparc64-slp-min.cpp -o min-O1
eg++ -O2 \
sparc64-slp-min.cpp -o min-O2
eg++ -O2 \
-fno-tree-slp-vectorize \
sparc64-slp-min.cpp -o min-O2-noslp
eg++ -O2 \
-fno-store-merging \
sparc64-slp-min.cpp -o min-O2-nomerge
It works as:
- min-O1 and min-O2-noslp works
- min-O2 and min-O2-nomerge crashes on SIGBUS
