https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102152
Bug ID: 102152
Summary: [12 Regression] ICE: tree check: expected ssa_name,
have integer_cst in cprop_operand, at
tree-ssa-dom.c:1715
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: aarch64-linux-gnu
gcc-12.0.0-alpha20210829 snapshot (g:c3c669ac811429033c0151f910b38fc009e21ca8)
ICEs when compiling the following testcase w/ -march=armv8-a+sve -O1
-ftree-loop-vectorize -fno-tree-fre:
signed char i;
void
foo (void)
{
for (i = 0; i < 6; i += 5)
;
}
% aarch64-linux-gnu-gcc-12.0.0 -march=armv8-a+sve -O1 -ftree-loop-vectorize
-fno-tree-fre -c gye5eeyb.c
during GIMPLE pass: dom
gye5eeyb.c: In function 'foo':
gye5eeyb.c:4:1: internal compiler error: tree check: expected ssa_name, have
integer_cst in cprop_operand, at tree-ssa-dom.c:1715
4 | foo (void)
| ^~~
0x7e6522 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-12.0.0_alpha20210829/work/gcc-12-20210829/gcc/tree.c:8688
0x7a5747 tree_check(tree_node*, char const*, int, char const*, tree_code)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-12.0.0_alpha20210829/work/gcc-12-20210829/gcc/tree.h:3391
0x7a5747 cprop_operand
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-12.0.0_alpha20210829/work/gcc-12-20210829/gcc/tree-ssa-dom.c:1715
0x7a5747 cprop_into_stmt
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-12.0.0_alpha20210829/work/gcc-12-20210829/gcc/tree-ssa-dom.c:1792
0x7a5747 dom_opt_dom_walker::optimize_stmt(basic_block_def*,
gimple_stmt_iterator*, bool*)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-12.0.0_alpha20210829/work/gcc-12-20210829/gcc/tree-ssa-dom.c:2002
0x105aef8 dom_opt_dom_walker::before_dom_children(basic_block_def*)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-12.0.0_alpha20210829/work/gcc-12-20210829/gcc/tree-ssa-dom.c:1430
0x1a17487 dom_walker::walk(basic_block_def*)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-12.0.0_alpha20210829/work/gcc-12-20210829/gcc/domwalk.c:309
0x10584ec execute
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-12.0.0_alpha20210829/work/gcc-12-20210829/gcc/tree-ssa-dom.c:764
