https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80018
Bug ID: 80018
Summary: ICE in expand_expr_addr_expr_1, at expr.c:7790 w/
-fsanitize=object-size
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org,
mpolacek at gcc dot gnu.org
Target Milestone: ---
Starting from GCC 4.9.0 (when object-size was added), we ICE:
$ cat ice.c
void
a ()
{
volatile register int b __asm__("rdx") = b;
}
$ gcc ice.c -c -fsanitize=object-size
ice.c: In function ‘a’:
ice.c:2:1: internal compiler error: in expand_expr_addr_expr_1, at expr.c:7790
a ()
^
0xad61af expand_expr_addr_expr_1
../../gcc/expr.c:7790
0xad6a07 expand_expr_addr_expr
../../gcc/expr.c:7903
0xae404a expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
../../gcc/expr.c:11035
0xad6e7e expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
../../gcc/expr.c:8072
0xabde15 expand_expr
../../gcc/expr.h:276
0xad7cc5 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
../../gcc/expr.c:8301
0x975b39 expand_gimple_stmt_1
../../gcc/cfgexpand.c:3676
0x975d96 expand_gimple_stmt
../../gcc/cfgexpand.c:3737
0x97d5f6 expand_gimple_basic_block
../../gcc/cfgexpand.c:5744
0x97f0a6 execute
../../gcc/cfgexpand.c:6357
