https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99706
Bug ID: 99706
Summary: [11 Regression] ICE: maximum number of generated
reload insns per insn achieved (90)
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: aarch64-linux-gnu
gcc-11.0.1-alpha20210321 snapshot (g:fc24ea2374259d401a46ce3526688b7e79d4cc13)
ICEs when compiling the following testcase w/ -O2 -ftree-loop-vectorize
-fno-tree-pta --param scev-max-expr-size=5:
int kk;
void
ii (int BUFSIZE)
{
char buf[BUFSIZE], *ptr = buf;
int i;
for (i = 0; i < BUFSIZE; i++)
*ptr++ = kk = 0;
}
% aarch64-linux-gnu-gcc-11.0.1 -O2 -ftree-loop-vectorize -fno-tree-pta --param
scev-max-expr-size=5 -c oeplxogh.c
during RTL pass: reload
oeplxogh.c: In function 'ii':
oeplxogh.c:11:1: internal compiler error: maximum number of generated reload
insns per insn achieved (90)
11 | }
| ^
0xd42ab0 lra_constraints(bool)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/lra-constraints.c:5091
0xd2b3e5 lra(_IO_FILE*)
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/lra.c:2336
0xce15c4 do_reload
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/ira.c:5834
0xce15c4 execute
/var/tmp/portage/cross-aarch64-linux-gnu/gcc-11.0.1_alpha20210321/work/gcc-11-20210321/gcc/ira.c:6020
I believe it is different from PR97141.
