https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78644
--- Comment #6 from Zdenek Sojka <zsojka at seznam dot cz> --- Created attachment 40981 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40981&action=edit another testcase $ x86_64-pc-linux-gnu-gcc -Og -finline-functions-called-once testcase.c -Wno-psabi ==20182== Invalid read of size 2 ==20182== at 0x8D0572: is_gimple_reg_type (gimple-expr.h:75) ==20182== by 0x8D0572: is_gimple_val(tree_node*) (gimple-expr.c:782) ==20182== by 0xC11E70: verify_gimple_assign_unary (tree-cfg.c:3634) ==20182== by 0xC11E70: verify_gimple_assign (tree-cfg.c:4475) ==20182== by 0xC11E70: verify_gimple_stmt(gimple*) (tree-cfg.c:4732) ==20182== by 0xC25B29: verify_gimple_in_cfg(function*, bool) (tree-cfg.c:5193) ==20182== by 0xABE056: execute_function_todo(function*, void*) (passes.c:1966) ==20182== by 0xABF10B: execute_todo(unsigned int) (passes.c:2016) ==20182== by 0xAC15AD: execute_one_pass(opt_pass*) (passes.c:2505) ==20182== by 0xAC1CB0: execute_pass_list_1(opt_pass*) (passes.c:2554) ==20182== by 0xAC1CC2: execute_pass_list_1(opt_pass*) (passes.c:2555) ==20182== by 0xAC1D04: execute_pass_list(function*, opt_pass*) (passes.c:2565) ==20182== by 0x752F12: cgraph_node::expand() (cgraphunit.c:2038) ==20182== by 0x754639: expand_all_functions (cgraphunit.c:2174) ==20182== by 0x754639: symbol_table::compile() [clone .part.51] (cgraphunit.c:2531) ==20182== by 0x756D16: compile (cgraphunit.c:2624) ==20182== by 0x756D16: symbol_table::finalize_compilation_unit() (cgraphunit.c:2621) ==20182== by 0xBDD442: compile_file() (toplev.c:492) ==20182== by 0x5A457F: do_compile (toplev.c:2000) ==20182== by 0x5A457F: toplev::main(int, char**) (toplev.c:2134) ==20182== by 0x5A686A: main (main.c:39) ==20182== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==20182== testcase.c: In function 'foo': testcase.c:13:1: internal compiler error: Segmentation fault foo (U u, V v) ^~~
