https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109749
Bug ID: 109749 Summary: new test case g++.dg/vect/pr109573.cc ICEs with checks turned on Product: gcc Version: 11.3.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: seurer at gcc dot gnu.org Target Milestone: --- The compiler was built with --enable-checking=yes,extra,rtl. Without that it does not ICE. g:8ee420c763add757bfb7c451f3ec986046644021, r11-10679-g8ee420c763add7 make -k check-gcc RUNTESTFLAGS="vect.exp=g++.dg/vect/pr109573.cc" FAIL: g++.dg/vect/pr109573.cc -std=c++2a (internal compiler error) FAIL: g++.dg/vect/pr109573.cc -std=c++2a (test for excess errors) # of unexpected failures 2 # of unsupported tests 3 spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-11-test/gcc/testsuite/g++/../../xg++ -B/home/seurer/gcc/git/build/gcc-11-test/gcc/testsuite/g++/../../ exceptions_enabled1011389.cc -fdiagnostics-plain-output -nostdinc++ -I/home/seurer/gcc/git/build/gcc-11-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/powerpc64le-unknown-linux-gnu -I/home/seurer/gcc/git/build/gcc-11-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include -I/home/seurer/gcc/git/gcc-11-test/libstdc++-v3/libsupc++ -I/home/seurer/gcc/git/gcc-11-test/libstdc++-v3/include/backward -I/home/seurer/gcc/git/gcc-11-test/libstdc++-v3/testsuite/util -fmessage-length=0 -S -o exceptions_enabled1011389.s FAIL: g++.dg/vect/pr109573.cc -std=c++2a (test for excess errors) Excess errors: during GIMPLE pass: slp /home/seurer/gcc/git/gcc-11-test/gcc/testsuite/g++.dg/vect/pr109573.cc:81:6: internal compiler error: in vectorizable_live_operation, at tree-vect-loop.c:8879 0x113c0cc7 vectorizable_live_operation(vec_info*, _stmt_vec_info*, gimple_stmt_iterator*, _slp_tree*, _slp_instance*, int, bool, vec<stmt_info_for_cost, va_heap, vl_ptr>*) /home/seurer/gcc/git/gcc-11-test/gcc/tree-vect-loop.c:8876 0x11376137 can_vectorize_live_stmts /home/seurer/gcc/git/gcc-11-test/gcc/tree-vect-stmts.c:10663 0x113a4d13 vect_transform_stmt(vec_info*, _stmt_vec_info*, gimple_stmt_iterator*, _slp_tree*, _slp_instance*) /home/seurer/gcc/git/gcc-11-test/gcc/tree-vect-stmts.c:11047 0x113e4517 vect_schedule_slp_node /home/seurer/gcc/git/gcc-11-test/gcc/tree-vect-slp.c:6391 0x113e4517 vect_schedule_slp_node /home/seurer/gcc/git/gcc-11-test/gcc/tree-vect-slp.c:6198 0x113f5137 vect_schedule_scc /home/seurer/gcc/git/gcc-11-test/gcc/tree-vect-slp.c:6553 0x113f4edb vect_schedule_scc /home/seurer/gcc/git/gcc-11-test/gcc/tree-vect-slp.c:6534 0x113f58fb vect_schedule_slp(vec_info*, vec<_slp_instance*, va_heap, vl_ptr>) /home/seurer/gcc/git/gcc-11-test/gcc/tree-vect-slp.c:6669 0x113f7507 vect_slp_region /home/seurer/gcc/git/gcc-11-test/gcc/tree-vect-slp.c:5074 0x113f896b vect_slp_bbs /home/seurer/gcc/git/gcc-11-test/gcc/tree-vect-slp.c:5186 0x113f8f9b vect_slp_function(function*) /home/seurer/gcc/git/gcc-11-test/gcc/tree-vect-slp.c:5272 0x114051c3 execute /home/seurer/gcc/git/gcc-11-test/gcc/tree-vectorizer.c:1450 commit 8ee420c763add757bfb7c451f3ec986046644021 (HEAD, refs/bisect/bad) Author: Richard Biener <rguent...@suse.de> Date: Fri Apr 21 12:57:17 2023 +0200 tree-optimization/109573 - avoid ICEing on unexpected live def