https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95595
Bug ID: 95595
Summary: [11 regression] ICE in building gcc after r11-959
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at linux dot vnet.ibm.com
Target Milestone: ---
g:b825a22890740f341eae566af27e18e528cd29a7, r11-959 and still occurring at
r11-1075
I see the following when doing a simple build (not even a bootstrap) of gcc on
power 7 BE or on a power 8 BE system when targeting power 7 via
--with-cpu=power7 (and only there). Note that this completely prevents gcc
from being built on powerpc64 power 7 machines.
libtool: compile: /home/seurer/gcc/git/build/gcc-test/./gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/./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/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
-DHAVE_CONFIG_H -I. -I/home/seurer/gcc/git/gcc-test/libgfortran
-iquote/home/seurer/gcc/git/gcc-test/libgfortran/io
-I/home/seurer/gcc/git/gcc-test/libgfortran/../gcc
-I/home/seurer/gcc/git/gcc-test/libgfortran/../gcc/config
-I/home/seurer/gcc/git/gcc-test/libgfortran/../libquadmath -I../.././gcc
-I/home/seurer/gcc/git/gcc-test/libgfortran/../libgcc -I../libgcc
-I/home/seurer/gcc/git/gcc-test/libgfortran/../libbacktrace -I../libbacktrace
-I../libbacktrace -std=gnu11 -Wall -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition -Wextra -Wwrite-strings
-Werror=implicit-function-declaration -Werror=vla -fcx-fortran-rules
-ffunction-sections -fdata-sections -ffast-math -ftree-vectorize -funroll-loops
--param max-unroll-times=4 -g -O2 -MT matmul_i1.lo -MD -MP -MF
.deps/matmul_i1.Tpo -c
/home/seurer/gcc/git/gcc-test/libgfortran/generated/matmul_i1.c -fPIC -DPIC -o
.libs/matmul_i1.o
during GIMPLE pass: uninit
/home/seurer/gcc/git/gcc-test/libgfortran/generated/matmul_i1.c: In function
'matmul_i1':
/home/seurer/gcc/git/gcc-test/libgfortran/generated/matmul_i1.c:2446:1:
internal compiler error: in gimple_call_arg, at gimple.h:3260
2446 | matmul_i1 (gfc_array_i1 * const restrict retarray,
| ^~~~~~~~~
0x10e4f827 gimple_call_arg
/home/seurer/gcc/git/gcc-test/gcc/gimple.h:3260
0x10e4f827 gimple_call_arg
/home/seurer/gcc/git/gcc-test/gcc/gimple.h:3268
0x10e4f827 maybe_warn_pass_by_reference
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa-uninit.c:505
0x10e4f827 warn_uninitialized_vars
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa-uninit.c:631
0x10e55223 execute
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa-uninit.c:2936
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
make[3]: *** [matmul_i1.lo] Error 1
make[3]: Leaving directory
`/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libgfortran'
make[2]: *** [all] Error 2
make[2]: Leaving directory
`/home/seurer/gcc/git/build/gcc-test/powerpc64-unknown-linux-gnu/libgfortran'
make[1]: *** [all-target-libgfortran] Error 2
make[1]: Leaving directory `/home/seurer/gcc/git/build/gcc-test'
make: *** [all] Error 2
