https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97800
Bug ID: 97800
Summary: [11 regression] bootstrap build failure starting with
r11-4913
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
g:bd87cc14ebdb6789e067fb1828d5808407c308b3, r11-4913
/bin/sh ../libtool --tag=CC --mode=compile
/home/seurer/gcc/git/build/gcc-test/./prev-gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/./prev-gcc/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/bin/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/bin/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/lib/
-isystem
/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/include
-isystem
/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/sys-include
-fno-checking -DHAVE_CONFIG_H -I. -I/home/seurer/gcc/git/gcc-test/gmp/mpn -I..
-D__GMP_WITHIN_GMP -I/home/seurer/gcc/git/gcc-test/gmp -DOPERATION_`echo
sec_powm | sed 's/_$//'` -DNO_ASM -g -O2 -fno-checking -gtoggle -c -o
sec_powm.lo sec_powm.c
libtool: compile: /home/seurer/gcc/git/build/gcc-test/./prev-gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/./prev-gcc/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/bin/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/bin/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/lib/
-isystem
/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/include
-isystem
/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/sys-include
-fno-checking -DHAVE_CONFIG_H -I. -I/home/seurer/gcc/git/gcc-test/gmp/mpn -I..
-D__GMP_WITHIN_GMP -I/home/seurer/gcc/git/gcc-test/gmp -DOPERATION_sec_powm
-DNO_ASM -g -O2 -fno-checking -gtoggle -c sec_powm.c -o sec_powm.o
during GIMPLE pass: pre
In file included from sec_powm.c:59:
sec_powm.c: In function '__gmpn_sec_powm':
../gmp.h:252:18: internal compiler error: Segmentation fault
252 | #define __MPN(x) __gmpn_##x
| ^~~~~~~
../gmp.h:1671:22: note: in expansion of macro '__MPN'
1671 | #define mpn_sec_powm __MPN(sec_powm)
| ^~~~~
sec_powm.c:218:1: note: in expansion of macro 'mpn_sec_powm'
218 | mpn_sec_powm (mp_ptr rp, mp_srcptr bp, mp_size_t bn,
| ^~~~~~~~~~~~
0x111bbf1f crash_signal
/home/seurer/gcc/git/gcc-test/gcc/toplev.c:330
0x1080f878 bitmap_bit_p(bitmap_head const*, int)
/home/seurer/gcc/git/gcc-test/gcc/bitmap.c:989
0x114ecfcf bitmap_set_contains_value
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa-pre.c:899
0x114ed0c7 bitmap_value_replace_in_set
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa-pre.c:920
0x114f3ddb create_expression_by_pieces
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa-pre.c:3003
0x114f641b do_hoist_insertion
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa-pre.c:3648
0x114f6a07 insert
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa-pre.c:3764
0x114f866f execute
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa-pre.c:4299
commit bd87cc14ebdb6789e067fb1828d5808407c308b3
Author: Richard Biener <rguent...@suse.de>
Date: Wed Nov 11 11:51:59 2020 +0100
