https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79575
Bug ID: 79575
Summary: [7 Regression] ICE in
mark_stmt_if_obviously_necessary, at
tree-ssa-dce.c:270
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: ysrumyan at gmail dot com
Target Milestone: ---
Running on x86_64:
gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/torture/pr70396.c -O3
--param vect-epilogues-nomask=1 -mavx512er -mtune=generic -march=x86-64
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/torture/pr70396.c: In
function ‘fn1’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/torture/pr70396.c:9:6:
internal compiler error: in mark_stmt_if_obviously_necessary, at
tree-ssa-dce.c:270
void fn1() {
^~~
0xb34ba5 mark_stmt_if_obviously_necessary
../../gcc/tree-ssa-dce.c:270
0xb34ba5 find_obviously_necessary_stmts
../../gcc/tree-ssa-dce.c:389
0xb34ba5 perform_tree_ssa_dce
../../gcc/tree-ssa-dce.c:1599
