https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100784
Bug ID: 100784 Summary: ICE: Segmentation fault, contains_struct_check(tree_node*, tree_node_structure_enum, char const*, int, char const*) 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.tVhv2eaPzV-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 20210526 (experimental) [master revision :21638bbbf:1fd76b24306ed4df4cf9e797d900699ed59ce7f7] (GCC) $ cat mutant.c typedef double v2df __attribute__((__vector_size__(16))); f() { v2df x; v2df y; __builtin_ia32_shufpd(x, y, 1); } $ gcc-trunk mutant.c mutant.c:2:1: warning: return type defaults to ‘int’ [-Wimplicit-int] 2 | f() { | ^ during GIMPLE pass: lower mutant.c: In function ‘f’: mutant.c:2:1: internal compiler error: Segmentation fault 0xf01803 crash_signal /tmp/tmp.tVhv2eaPzV-gcc-builder/gcc/gcc/toplev.c:327 0xf3cf82 contains_struct_check(tree_node*, tree_node_structure_enum, char const*, int, char const*) /tmp/tmp.tVhv2eaPzV-gcc-builder/gcc/gcc/tree.h:3479 0xf3cf82 verify_gimple_assign_ternary /tmp/tmp.tVhv2eaPzV-gcc-builder/gcc/gcc/tree-cfg.c:4180 0xf3fb37 verify_gimple_in_seq_2 /tmp/tmp.tVhv2eaPzV-gcc-builder/gcc/gcc/tree-cfg.c:5121 0xf42485 verify_gimple_in_seq(gimple*) /tmp/tmp.tVhv2eaPzV-gcc-builder/gcc/gcc/tree-cfg.c:5160 0xe12660 execute_function_todo /tmp/tmp.tVhv2eaPzV-gcc-builder/gcc/gcc/passes.c:2044 0xe1331e execute_todo /tmp/tmp.tVhv2eaPzV-gcc-builder/gcc/gcc/passes.c:2096 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.