https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84302
Bug ID: 84302
Summary: ICE: Segmentation fault (in extract_insn) on SPE
target
Product: gcc
Version: unknown
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: ---
Target: powerpcspe-*-linux-gnu*
gcc-8.0.0-alpha20180204 snapshot (r257367) ICEs when compiling the following
snippet w/ -O1 (-Og) -fgcse -fno-dce -fno-tree-pta --param max-cse-insns=10:
long long int rd;
void
bz (int *yj, int kz)
{
for (;;)
{
rd *= 3;
if (rd == kz)
rd += *yj;
++rd;
}
}
% powerpc-e500v2-linux-gnuspe-gcc-8.0.0-alpha20180204 -O1 -fgcse -fno-dce
-fno-tree-pta --param max-cse-insns=10 -c trlvou7e.c
during RTL pass: subreg2
trlvou7e.c: In function 'bz':
trlvou7e.c:13:1: internal compiler error: Segmentation fault
}
^
0xc48059 crash_signal
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-8.0.0_alpha20180204/work/gcc-8-20180204/gcc/toplev.c:325
0xb9293a extract_insn(rtx_insn*)
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-8.0.0_alpha20180204/work/gcc-8-20180204/gcc/recog.c:2319
0x148d5a2 decompose_multiword_subregs
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-8.0.0_alpha20180204/work/gcc-8-20180204/gcc/lower-subreg.c:1474
0x148eb6c execute
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-8.0.0_alpha20180204/work/gcc-8-20180204/gcc/lower-subreg.c:1741
