https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100505
Bug ID: 100505 Summary: ICE: in record_in_finally_tree, at tree-eh.c:213 Product: gcc Version: tree-ssa Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: cnsun at uwaterloo dot ca Target Milestone: --- $ gcc-trunk -v Using built-in specs. COLLECT_GCC=gcc-trunk COLLECT_LTO_WRAPPER=/scratch/software/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /tmp/tmp.FRQzt2wMfl-gcc-builder/gcc/configure --enable-languages=c,c++,lto --enable-checking-yes --enable-multiarch --prefix=/scratch/software/gcc-trunk --disable-bootstrap Thread model: posix Supported LTO compression algorithms: zlib gcc version 12.0.0 20210510 (experimental) [master revision :fb3a8fb4a:25f9f35a85ffee808fc1482b14d91176df59751b] (GCC) $ cat mutant.c __GIMPLE foo() { bb1: bb1: bb1:; } $ gcc-trunk mutant.c mutant.c:1:1: error: ‘__GIMPLE’ only valid with ‘-fgimple’ 1 | __GIMPLE | ^~~~~~~~ mutant.c:2:1: warning: return type defaults to ‘int’ [-Wimplicit-int] 2 | foo() { | ^~~ mutant.c: In function ‘foo’: mutant.c:4:1: error: duplicate label ‘bb1’ 4 | bb1: | ^~~ mutant.c:3:1: note: previous definition of ‘bb1’ with type ‘void’ 3 | bb1: | ^~~ mutant.c:5:1: error: duplicate label ‘bb1’ 5 | bb1:; | ^~~ mutant.c:3:1: note: previous definition of ‘bb1’ with type ‘void’ 3 | bb1: | ^~~ during GIMPLE pass: eh mutant.c:2:1: internal compiler error: in record_in_finally_tree, at tree-eh.c:213 2 | foo() { | ^~~ 0xf5fe56 record_in_finally_tree /tmp/tmp.FRQzt2wMfl-gcc-builder/gcc/gcc/tree-eh.c:213 0xf5fe56 record_in_finally_tree /tmp/tmp.FRQzt2wMfl-gcc-builder/gcc/gcc/tree-eh.c:203 0xf64d79 collect_finally_tree_1 /tmp/tmp.FRQzt2wMfl-gcc-builder/gcc/gcc/tree-eh.c:229 0xf64d79 execute /tmp/tmp.FRQzt2wMfl-gcc-builder/gcc/gcc/tree-eh.c:2197 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.