https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105484
Bug ID: 105484 Summary: [12/13 Regression] ICE: verify_flow_info failed: BB 2 cannot throw but has an EH edge with -Os -march=cannonlake -fnon-call-exceptions -fno-tree-dce -fno-tree-forwprop Product: gcc Version: 13.0 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 Created attachment 52927 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52927&action=edit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -Os -march=cannonlake -fnon-call-exceptions -fno-tree-dce -fno-tree-forwprop testcase.c testcase.c: In function 'foo': testcase.c:6:1: error: BB 2 cannot throw but has an EH edge 6 | foo (int i) | ^~~ during GIMPLE pass: isel testcase.c:6:1: internal compiler error: verify_flow_info failed 0xee6463 verify_flow_info() /repo/gcc-trunk/gcc/cfghooks.cc:284 0x12f730a execute_function_todo /repo/gcc-trunk/gcc/passes.cc:2097 0x12f788b execute_todo /repo/gcc-trunk/gcc/passes.cc:2139 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> 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-r13-112-20220504095402-g9c6a4beeed5-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/13.0.0/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 --disable-bootstrap --with-cloog --with-ppl --with-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-r13-112-20220504095402-g9c6a4beeed5-checking-yes-rtl-df-extra-nobootstrap-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 13.0.0 20220504 (experimental) (GCC)