https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100550
Bug ID: 100550
Summary: ICE: in fold_convert_loc, at fold-const.c:2429
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.FUbEknNORK-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 20210511 (experimental) [master revision
:7db32cac8:aa891c56f25baac94db004e309d1b6e40b770a95] (GCC)
$ cat mutant.c
void f1ipx();
void f1ia_f(int[]);
void f1ia_f(int[f1ipx()]);
$ gcc-trunk -O0 mutant.c
mutant.c:3:16: error: size of unnamed array has non-integer type
3 | void f1ia_f(int[f1ipx()]);
| ^
mutant.c:3:1: internal compiler error: in fold_convert_loc, at
fold-const.c:2429
3 | void f1ia_f(int[f1ipx()]);
| ^~~~
0x6bd71f fold_convert_loc(unsigned int, tree_node*, tree_node*)
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/fold-const.c:2429
0x11fec86 build_range_type_1
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/tree.c:7015
0x8c8e5b attr_access::array_as_string[abi:cxx11](tree_node*) const
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/attribs.c:2392
0x9d8915 warn_parm_array_mismatch(unsigned int, tree_node*, tree_node*)
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c-family/c-warn.c:3448
0x943e4c c_parser_declaration_or_fndef
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:2342
0x94b9d3 c_parser_external_declaration
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:1777
0x94c439 c_parser_translation_unit
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:1650
0x94c439 c_parse_file()
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c/c-parser.c:21984
0x9ac765 c_common_parse_file()
/tmp/tmp.FUbEknNORK-gcc-builder/gcc/gcc/c-family/c-opts.c:1218
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.
