https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89753
Bug ID: 89753
Summary: ICE in unroll_loop_constant_iterations, at
loop-unroll.c:498
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc-9.0.0-alpha20190317 snapshot (r269746) ICEs when compiling the following
testcase w/ -O1 -fno-tree-dominator-opts:
int uw;
void
xl (void)
{
#pragma GCC unroll 2
for (uw = 0; uw < 1; ++uw)
{
}
}
% x86_64-pc-linux-gnu-gcc-9.0.0-alpha20190317 -O1 -fno-tree-dominator-opts -c
jynizscq.c
during RTL pass: loop2_unroll
jynizscq.c: In function 'xl':
jynizscq.c:10:1: internal compiler error: in unroll_loop_constant_iterations,
at loop-unroll.c:498
10 | }
| ^
0x654d5f unroll_loop_constant_iterations
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190317/work/gcc-9-20190317/gcc/loop-unroll.c:498
0x654d5f unroll_loops(int)
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190317/work/gcc-9-20190317/gcc/loop-unroll.c:295
0xbca72f execute
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190317/work/gcc-9-20190317/gcc/loop-init.c:584
0xbca72f execute
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20190317/work/gcc-9-20190317/gcc/loop-init.c:571
