https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101352
Bug ID: 101352
Summary: ICE on valid code: in convert_move, at expr.c:279
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: ---
Clang can compile the test program.
$ 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.t468jxVWYr-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 20210706 (experimental) [master revision
:e442981a9:a3543b5e8002c033b2304d7ac1d1e58218eebb51] (GCC)
$ cat mutant.c
void g(i) int i __attribute__((__vector_size__(16)));
{}
$ gcc-trunk mutant.c
during RTL pass: expand
mutant.c: In function ‘g’:
mutant.c:1:6: internal compiler error: in convert_move, at expr.c:279
1 | void g(i) int i __attribute__((__vector_size__(16)));
| ^
0x6bf71f convert_move(rtx_def*, rtx_def*, int)
/tmp/tmp.t468jxVWYr-gcc-builder/gcc/gcc/expr.c:279
0xb859a5 convert_modes(machine_mode, machine_mode, rtx_def*, int)
/tmp/tmp.t468jxVWYr-gcc-builder/gcc/gcc/expr.c:738
0xbecea2 assign_parm_setup_stack
/tmp/tmp.t468jxVWYr-gcc-builder/gcc/gcc/function.c:3470
0xbecea2 assign_parms
/tmp/tmp.t468jxVWYr-gcc-builder/gcc/gcc/function.c:3701
0xbeea22 expand_function_start(tree_node*)
/tmp/tmp.t468jxVWYr-gcc-builder/gcc/gcc/function.c:5155
0xa60fd5 execute
/tmp/tmp.t468jxVWYr-gcc-builder/gcc/gcc/cfgexpand.c:6693
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.
