https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77450
Bug ID: 77450 Summary: [5/6/7 Regression] ICE: in verify_ssa, at tree-ssa.c:1016 on very simple code with vectors Product: gcc Version: 7.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Build: x86_64-pc-linux-gnu Created attachment 39538 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39538&action=edit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc testcase.c testcase.c: In function 'foo': testcase.c:7:1: internal compiler error: in verify_ssa, at tree-ssa.c:1016 } ^ 0xde3139 verify_ssa(bool, bool) /repo/gcc-trunk/gcc/tree-ssa.c:1016 0xac5e25 execute_function_todo /repo/gcc-trunk/gcc/passes.c:1971 0xac6c8f do_per_function /repo/gcc-trunk/gcc/passes.c:1655 0xac6d06 execute_todo /repo/gcc-trunk/gcc/passes.c:2014 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. $ x86_64-pc-linux-gnu-gcc testcase.c -W testcase.c: In function 'foo': testcase.c:7:1: internal compiler error: in execute_todo, at passes.c:2009 } ^ 0xac6dda execute_todo /repo/gcc-trunk/gcc/passes.c:2009 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. $ x86_64-pc-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-239934-checking-yes-rtl-df-extra-nographite-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/7.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++ --enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra --without-cloog --without-ppl --without-isl --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld --with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-239934-checking-yes-rtl-df-extra-nographite-amd64 Thread model: posix gcc version 7.0.0 20160901 (experimental) (GCC) Tested revisions: r239934 - ICE 6-branch r239849 - ICE 5-branch r239848 - ICE 4_9-branch r239063 - ICE 4_8-branch r224828 - ICE 4_7-branch r211571 - OK