https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67481
Bug ID: 67481
Summary: [6 regression] gcc.c-torture/execute/20071216-1.c
FAILs
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: ebotcazou at gcc dot gnu.org, ktkachov at gcc dot gnu.org
Target Milestone: ---
Target: sparc*-sun-solaris2.*
Between 20150828 and 20150904, two testsuite regressions appeared on
Solaris/SPARC:
FAIL: gcc.c-torture/execute/20071216-1.c -O1 execution test
FAIL: gcc.c-torture/execute/20071216-1.c -Os execution test
The failures happen for 32-bit only:
Program received signal SIGABRT, Aborted.
[Switching to Thread 1 (LWP 1)]
0xff22ebd4 in _lwp_kill () from /lib/libc.so.1
(gdb) where
#0 0xff22ebd4 in _lwp_kill () from /lib/libc.so.1
#1 0xff1c7bb8 in raise () from /lib/libc.so.1
#2 0xff1a29f8 in abort () from /lib/libc.so.1
#3 0x00010ab8 in main ()
at
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.c-torture/execute/20071216-1.c:30
A reghunt identified this patch as the culprit:
The first bad revision is:
changeset: 24917:960cfd35a905
user: ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4
date: Tue Sep 01 12:33:51 2015 +0000
summary: [RTL-ifcvt] Make non-conditional execution if-conversion more
aggressive
Rainer
