https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89064

            Bug ID: 89064
           Summary: [9 regression] libgomp.graphite/force-parallel-5.c
                    fails starting with r268257
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

Does this test case need updating?  

spawn -ignore SIGHUP /home/seurer/gcc/build/gcc-test2/gcc/xgcc
-B/home/seurer/gcc/build/gcc-test2/gcc/
/home/seurer/gcc/gcc-test2/libgomp/testsuite/libgomp.graphite/force-parallel-5.c
-B/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/
-B/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/.libs
-I/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp
-I/home/seurer/gcc/gcc-test2/libgomp/testsuite/../../include
-I/home/seurer/gcc/gcc-test2/libgomp/testsuite/.. -fmessage-length=0
-fno-diagnostics-show-caret -Wno-hsa -fdiagnostics-color=never -fopenmp -ansi
-pedantic-errors -O2 -ftree-parallelize-loops=4 -floop-parallelize-all
-fdump-tree-parloops-details -fdump-tree-optimized -fno-loop-strip-mine
-fno-loop-block -fdump-tree-graphite-all
-L/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/.libs
-lm -o ./force-parallel-5.exe
Executing on host: /home/seurer/gcc/build/gcc-test2/gcc/xgcc
-B/home/seurer/gcc/build/gcc-test2/gcc/ offload_gcn37385.c  
-B/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/
-B/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/.libs
-I/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp
-I/home/seurer/gcc/gcc-test2/libgomp/testsuite/../../include
-I/home/seurer/gcc/gcc-test2/libgomp/testsuite/.. -fmessage-length=0
-fno-diagnostics-show-caret -Wno-hsa -fdiagnostics-color=never -fopenmp
-foffload=amdgcn-unknown-amdhsa  -S -o offload_gcn37385.s    (timeout = 300)
spawn -ignore SIGHUP /home/seurer/gcc/build/gcc-test2/gcc/xgcc
-B/home/seurer/gcc/build/gcc-test2/gcc/ offload_gcn37385.c
-B/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/
-B/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/.libs
-I/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp
-I/home/seurer/gcc/gcc-test2/libgomp/testsuite/../../include
-I/home/seurer/gcc/gcc-test2/libgomp/testsuite/.. -fmessage-length=0
-fno-diagnostics-show-caret -Wno-hsa -fdiagnostics-color=never -fopenmp
-foffload=amdgcn-unknown-amdhsa -S -o offload_gcn37385.s
xgcc: fatal error: GCC is not configured to support amdgcn-unknown-amdhsa as
offload target
compilation terminated.
compiler exited with status 1
PASS: libgomp.graphite/force-parallel-5.c (test for excess errors)
Setting LD_LIBRARY_PATH to
.:/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/.libs:/home/seurer/gcc/build/gcc-test2/gcc:.:/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/.libs:/home/seurer/gcc/build/gcc-test2/gcc:/home/seurer/gcc/build/gcc-test2/./gmp/.libs:/home/seurer/gcc/build/gcc-test2/./prev-gmp/.libs:/home/seurer/gcc/build/gcc-test2/./mpfr/src/.libs:/home/seurer/gcc/build/gcc-test2/./prev-mpfr/src/.libs:/home/seurer/gcc/build/gcc-test2/./mpc/src/.libs:/home/seurer/gcc/build/gcc-test2/./prev-mpc/src/.libs:/home/seurer/gcc/build/gcc-test2/./isl/.libs:/home/seurer/gcc/build/gcc-test2/./prev-isl/.libs
Execution timeout is: 300
spawn [open ...]
PASS: libgomp.graphite/force-parallel-5.c execution test
libgomp.graphite/force-parallel-5.c: pattern found 0 times
FAIL: libgomp.graphite/force-parallel-5.c scan-tree-dump-times graphite "2
loops carried no dependency" 1
PASS: libgomp.graphite/force-parallel-5.c scan-tree-dump-times optimized
"loopfn.0" 4
PASS: libgomp.graphite/force-parallel-5.c scan-tree-dump-times optimized
"loopfn.1" 4
testcase
/home/seurer/gcc/gcc-test2/libgomp/testsuite/libgomp.graphite/graphite.exp
completed in 1 seconds

                === libgomp Summary ===

# of expected passes            4
# of unexpected failures        1

r268257 | rguenth | 2019-01-25 02:13:34 -0600 (Fri, 25 Jan 2019) | 10 lines

2019-01-25  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/86865
        * graphite-scop-detection.c (scop_detection::can_represent_loop):
        Reject non-do-while loops.

        * gcc.dg/graphite/pr86865.c: New testcase.
        * gcc.dg/graphite/pr69728.c: XFAIL.
        * gcc.dg/graphite/scop-21.c: Likewise.

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