https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67653
Bug ID: 67653 Summary: ICE on valid code on x86_64-linux-gnu: verify_gimple failed Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: su at cs dot ucdavis.edu Target Milestone: --- The following code causes an ICE when compiled with the current gcc trunk (at all optimization levels) on x86_64-linux-gnu in both 32-bit and 64-bit modes. This is a regression from 5.2.x. $ gcc-trunk -v Using built-in specs. COLLECT_GCC=gcc-trunk COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/6.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc-trunk/configure --prefix=/usr/local/gcc-trunk --enable-languages=c,c++ --disable-werror --enable-multilib Thread model: posix gcc version 6.0.0 20150920 (experimental) [trunk revision 227943] (GCC) $ $ gcc-5.2 -c small.c $ $ gcc-trunk -c small.c small.c: In function ‘foo’: small.c:2:1: error: invalid rhs for gimple memory store foo () ^ D.1758 a D.1758 = a; small.c:2:1: internal compiler error: verify_gimple failed 0xae6b3d verify_gimple_in_seq(gimple*) ../../gcc-trunk/gcc/tree-cfg.c:4766 0x89d765 gimplify_body(tree_node*, bool) ../../gcc-trunk/gcc/gimplify.c:9319 0x89daf6 gimplify_function_tree(tree_node*) ../../gcc-trunk/gcc/gimplify.c:9408 0x72e427 cgraph_node::analyze() ../../gcc-trunk/gcc/cgraphunit.c:636 0x73162b analyze_functions ../../gcc-trunk/gcc/cgraphunit.c:1091 0x732568 symbol_table::finalize_compilation_unit() ../../gcc-trunk/gcc/cgraphunit.c:2540 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. $ ----------------------------- void foo () { __asm__ (""::"m" (( { static int a; a; }))); }