https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91204
Bug ID: 91204
Summary: ICE in expand_expr_real_2, at expr.c:9215 with -O3
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: vsevolod.livinskij at frtk dot ru
Target Milestone: ---
GCC fails with ICE in expand_expr_real_2, at expr.c:9215.
Reproducer:
int a, b;
extern int c[];
void d() {
for (int e = 6; e <= a; e++)
c[e] &= b ^ c[e] ^ c[e - 2];
}
Error:
>$ gcc -c -O3 small.c
during RTL pass: expand
small.c: In function ‘d’:
small.c:5:10: internal compiler error: in expand_expr_real_2, at expr.c:9215
5 | c[e] &= b ^ c[e] ^ c[e - 2];
| ^~
0x8c9408 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
/gcc/expr.c:9215
0x8d0532 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/gcc/expr.c:9948
0x8dac5e expand_expr
/gcc/expr.h:281
0x8dac5e expand_operands(tree_node*, tree_node*, rtx_def*, rtx_def**,
rtx_def**, expand_modifier)
/gcc/expr.c:7878
0x8c829d expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
/gcc/expr.c:9738
0x796a60 expand_gimple_stmt_1
/gcc/cfgexpand.c:3814
0x796a60 expand_gimple_stmt
/gcc/cfgexpand.c:3875
0x79da4f expand_gimple_basic_block
/gcc/cfgexpand.c:5915
0x7a027e execute
/gcc/cfgexpand.c:6538
GCC version is 10.0.0 (rev. 273556)
