https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106548
Bug ID: 106548
Summary: ICE in #pragma openmp parallel for simd linear with
long long variables
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: sandra at gcc dot gnu.org
Target Milestone: ---
Test case is reduced from libgomp.c/linear-1.c, with "simd" added to the loop:
int a[256];
__attribute__((noinline, noclone)) long long int
f3 (long long int i, long long int k)
{
#pragma omp parallel for simd linear (i: k)
for (short j = 16; j < 64; j++)
{
a[i] = j;
i += 4;
}
return i;
}
$ x86_64-linux-gnu-gcc -S -fopenmp linear-1.c
during RTL pass: expand
linear-1.c: In function 'f3._omp_fn.0':
linear-1.c:6:11: internal compiler error: in expand_expr_real_1, at
expr.cc:10721
6 | #pragma omp parallel for simd linear (i: k)
| ^~~
0x748517 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/path/to/gcc/expr.cc:10721
0xba694c expand_expr
/path/to/gcc/expr.h:310
0xba694c expand_operands(tree_node*, tree_node*, rtx_def*, rtx_def**,
rtx_def**, expand_modifier)
/path/to/gcc/expr.cc:8403
0xb9eedb expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
/path/to/gcc/expr.cc:9631
0xa7a3c8 expand_gimple_stmt_1
/path/to/gcc/cfgexpand.cc:3983
0xa7a3c8 expand_gimple_stmt
/path/to/gcc/cfgexpand.cc:4044
0xa8013e expand_gimple_basic_block
/path/to/gcc/cfgexpand.cc:6096
0xa81c66 execute
/path/to/cfgexpand.cc:6822
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Declaring either i or k as plain "int" instead of "long long int" makes the
crash go away.
