https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71299
Bug ID: 71299 Summary: [7 regression] test case gcc.dg/torture/pr69909.c fails with ICE starting with r236634 Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: seurer at linux dot vnet.ibm.com Target Milestone: --- This fails on both BE and LE. Here is one example of the six similar failures (with different compilation options) for this test case: Executing on host: /home/seurer/gcc/build/gcc-test2/gcc/xgcc -B/home/seurer/gcc/build/gcc-test2/gcc/ /home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/torture/pr69909.c -fno-diagnostics-show-caret -fdiagnostics-color=never -O0 -w -lm -o ./pr69909.exe (timeout = 300) spawn /home/seurer/gcc/build/gcc-test2/gcc/xgcc -B/home/seurer/gcc/build/gcc-test2/gcc/ /home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/torture/pr69909.c -fno-diagnostics-show-caret -fdiagnostics-color=never -O0 -w -lm -o ./pr69909.exe PASS: gcc.dg/torture/pr69909.c -O0 (test for excess errors) Setting LD_LIBRARY_PATH to :/home/seurer/gcc/build/gcc-test2/gcc::/home/seurer/gcc/build/gcc-test2/gcc:/home/wschmidt/gcc/install/gcc-5_1/lib64 spawn [open ...] PASS: gcc.dg/torture/pr69909.c -O0 execution test Executing on host: /home/seurer/gcc/build/gcc-test2/gcc/xgcc -B/home/seurer/gcc/build/gcc-test2/gcc/ /home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/torture/pr69909.c -fno-diagnostics-show-caret -fdiagnostics-color=never -O1 -w -lm -o ./pr69909.exe (timeout = 300) spawn /home/seurer/gcc/build/gcc-test2/gcc/xgcc -B/home/seurer/gcc/build/gcc-test2/gcc/ /home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/torture/pr69909.c -fno-diagnostics-show-caret -fdiagnostics-color=never -O1 -w -lm -o ./pr69909.exe /home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/torture/pr69909.c: In function 'foo': /home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/torture/pr69909.c:10:1: error: definition in block 2 follows the use for SSA_NAME: _13 in statement: _3 = _13 * 2; /home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/torture/pr69909.c:10:1: internal compiler error: verify_ssa failed 0x10b093b3 verify_ssa(bool, bool) /home/seurer/gcc/gcc-test2/gcc/tree-ssa.c:1039 0x107853af execute_function_todo /home/seurer/gcc/gcc-test2/gcc/passes.c:1971 0x10785fd3 do_per_function /home/seurer/gcc/gcc-test2/gcc/passes.c:1648 0x107862ef execute_todo /home/seurer/gcc/gcc-test2/gcc/passes.c:2016 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. compiler exited with status 1