[Bug c/100501] ICE with inline-asm and void statement expression

["cnsun at uwaterloo dot ca" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100501

--- Comment #6 from Chengnian Sun <cnsun at uwaterloo dot ca> ---
Another duplicate.

$ 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.7yrVYtTGDZ-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 20210723 (experimental) [master revision
:3eeaf64a5:01ac2f08b0105a1c85425d0e59216eb528c6d2ab] (GCC)

$ cat mutant.c
foo() { __asm__("" : : "m"(({}))); }

$ gcc-trunk -w mutant.c
mutant.c: In function ‘foo’:
mutant.c:1:29: internal compiler error: Segmentation fault
    1 | foo() { __asm__("" : : "m"(({}))); }
      |                            ~^~~
0xf28613 crash_signal
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/toplev.c:328
0xc0eb94 is_gimple_variable
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimple-expr.h:84
0xc0eb94 is_gimple_id
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimple-expr.h:95
0xc0eb94 is_gimple_addressable
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimple-expr.h:122
0xc0eb94 is_gimple_lvalue(tree_node*)
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimple-expr.c:595
0xc4c06d gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimplify.c:15179
0xc59038 gimplify_asm_expr
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimplify.c:6497
0xc4bfb1 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimplify.c:14556
0xc4db2a gimplify_stmt(tree_node**, gimple**)
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimplify.c:6869
0xc4e35e gimplify_bind_expr
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimplify.c:1426
0xc4b33c gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimplify.c:14424
0xc4db2a gimplify_stmt(tree_node**, gimple**)
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimplify.c:6869
0xc4f153 gimplify_body(tree_node*, bool)
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimplify.c:15456
0xc4f5a1 gimplify_function_tree(tree_node*)
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/gimplify.c:15610
0xaa2657 cgraph_node::analyze()
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/cgraphunit.c:670
0xaa5531 analyze_functions
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/cgraphunit.c:1234
0xaa6011 symbol_table::finalize_compilation_unit()
        /tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/cgraphunit.c:2508
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