https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101607
Bug ID: 101607
Summary: ICE on compilable code: in assign_stack_temp_for_type,
at function.c:798
Product: gcc
Version: 12.0
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.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
union {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
struct {
int u2s_a, u2s_b,
u2s_c,
u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c,
u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c,
u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d,
u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d,
u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d,
u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
} u2s_a, u2s_b, u2s_c, u2s_d, u2s_e
}
} fu2();
unions() { fu2(); }
$ gcc-trunk -w mutant.c
during RTL pass: expand
mutant.c: In function ‘unions’:
mutant.c:64:12: internal compiler error: in assign_stack_temp_for_type, at
function.c:798
64 | unions() { fu2(); }
| ^~~~~
0x6d9257 assign_stack_temp_for_type(machine_mode, poly_int<1u, long>,
tree_node*)
/tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/function.c:798
0xbf47bb assign_temp(tree_node*, int, int)
/tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/function.c:1018
0xa449ff expand_call(tree_node*, rtx_def*, int)
/tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/calls.c:3882
0xb82f85 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/expr.c:11443
0xa5d5bf expand_expr
/tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/expr.h:301
0xa5d5bf expand_call_stmt
/tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/cfgexpand.c:2846
0xa5d5bf expand_gimple_stmt_1
/tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/cfgexpand.c:3879
0xa5d5bf expand_gimple_stmt
/tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/cfgexpand.c:4043
0xa62ec9 expand_gimple_basic_block
/tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/cfgexpand.c:6085
0xa64d9f execute
/tmp/tmp.7yrVYtTGDZ-gcc-builder/gcc/gcc/cfgexpand.c:6811
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.
