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