https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81931
Bug ID: 81931
Summary: [8 regression] r251260 breaks many tests on powerpc64
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
This change to wide-int.h breaks many tests on powerpc64 both LE and BE. The
symptom is the compiled code hangs. There are hundreds of test cases that time
out then fail. One example:
Running /home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/atomic/atomic.exp ...
WARNING: program timed out.
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c -O1 execution test
WARNING: program timed out.
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c -O2 execution test
WARNING: program timed out.
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions execution test
WARNING: program timed out.
FAIL: gcc.dg/atomic/c11-atomic-exec-5.c -O3 -g execution test
WARNING: program timed out.
...etc...
That particular one is doing floating point arithmetic tests on atomic floats
using threads. At least some (not sure if all) of the other failing tests are
doing similar things.
