Internal compiler error when compiling f2c_specifics.F90 function
_gfortran_f2c_specific__cos_c8 with optimizations turned on for the thumb
multilib directory. The non-thumb build compiles fine. Turning off the -O2
flag compiles fine (not sure if it works). I can reduce the test case removing
all other functions from the file:
here is the preprocessed file (only difference between f90 and F90 is the # 1
lines)
# 1 "f2c_specifics.F90"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "f2c_specifics.F90"
subroutine _gfortran_f2c_specific__cos_c8 (res, parm);
DOUBLE COMPLEX, intent (in) :: parm; DOUBLE COMPLEX, intent (out) :: res;
res = cos (parm); end subroutine
And the build results
Reading specs from /opt/build/arm-none-elf/./gcc/specs
Target: arm-elf
Configured with: /opt/src/tooltrunk/configure --prefix=/opt/devtools
--with-gmp=/opt/devtools --with-mpc=/opt/devtools --with-mpfr=/opt/devtools
--with-ppl=/opt/devtools --with-cloog=/opt/devtools
--enable-version-specific-runtime-libs --disable-rpath --disable-win32-registry
--enable-languages=c,c++,fortran --disable-bootstrap --target=arm-elf
Thread model: single
gcc version 4.4.2 20090927 (prerelease) (GCC)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-B/opt/build/arm-none-elf/./gcc/'
'-nostdinc' '-B/opt/build/arm-none-elf/arm-elf/thumb/newlib/' '-isystem'
'/opt/build/arm-none-elf/arm-elf/thumb/newlib/targ-include' '-isystem'
'/opt/src/tooltrunk/newlib/libc/include'
'-B/opt/build/arm-none-elf/arm-elf/thumb/libgloss/arm'
'-L/opt/build/arm-none-elf/arm-elf/thumb/libgloss/libnosys'
'-L/opt/src/tooltrunk/libgloss/arm' '-B/opt/devtools/arm-elf/bin/'
'-B/opt/devtools/arm-elf/lib/' '-isystem' '/opt/devtools/arm-elf/include'
'-isystem' '/opt/devtools/arm-elf/sys-include' '-L/opt/build/arm-none-elf/./ld'
'-DHAVE_CONFIG_H' '-I../thumb' '-I/opt/src/tooltrunk/libgfortran' '-I../thumb'
'-iquote/opt/src/tooltrunk/libgfortran/io'
'-I/opt/src/tooltrunk/libgfortran/../gcc'
'-I/opt/src/tooltrunk/libgfortran/../gcc/config' '-I../../.././gcc'
'-D_GNU_SOURCE' '-I' '../thumb' '-Wall' '-Werror' '-fno-underscoring'
'-fallow-leading-underscore' '-g' '-O2' '-mthumb' '-c' '-o' 'f2c_specifics.o'
/opt/build/arm-none-elf/./gcc/f951 f2c_specifics.F90 -cpp f2c_specifics.f90
-quiet -nostdinc -v -I../thumb -I/opt/src/tooltrunk/libgfortran -I../thumb
-I/opt/src/tooltrunk/libgfortran/../gcc
-I/opt/src/tooltrunk/libgfortran/../gcc/config -I../../.././gcc -I ../thumb
-imultilib thumb -iprefix /opt/build/arm-none-elf/gcc/../lib/gcc/arm-elf/4.4.2/
-isystem /opt/build/arm-none-elf/./gcc/include -isystem
/opt/build/arm-none-elf/./gcc/include-fixed -D__USES_INITFINI__ -DHAVE_CONFIG_H
-D_GNU_SOURCE -isystem
/opt/build/arm-none-elf/arm-elf/thumb/newlib/targ-include -isystem
/opt/src/tooltrunk/newlib/libc/include -isystem /opt/devtools/arm-elf/include
-isystem /opt/devtools/arm-elf/sys-include
-iquote/opt/src/tooltrunk/libgfortran/io f2c_specifics.F90 -quiet -dumpbase
f2c_specifics.F90 -mthumb -auxbase-strip f2c_specifics.o -g -O2 -Wall -Werror
-version -fno-underscoring -fallow-leading-underscore -o f2c_specifics.s
ignoring nonexistent directory
"/opt/build/arm-none-elf/gcc/../lib/gcc/arm-elf/4.4.2/include"
ignoring nonexistent directory
"/opt/build/arm-none-elf/gcc/../lib/gcc/arm-elf/4.4.2/include-fixed"
ignoring nonexistent directory
"/opt/build/arm-none-elf/gcc/../lib/gcc/arm-elf/4.4.2/../../../../arm-elf/sys-include"
ignoring nonexistent directory
"/opt/build/arm-none-elf/gcc/../lib/gcc/arm-elf/4.4.2/../../../../arm-elf/include"
ignoring nonexistent directory
"/opt/build/arm-none-elf/gcc/../lib/gcc/../../lib/gcc/arm-elf/4.4.2/include"
ignoring nonexistent directory
"/opt/build/arm-none-elf/gcc/../lib/gcc/../../lib/gcc/arm-elf/4.4.2/include-fixed"
ignoring nonexistent directory
"/opt/build/arm-none-elf/gcc/../lib/gcc/../../lib/gcc/arm-elf/4.4.2/../../../../arm-elf/sys-include"
ignoring nonexistent directory
"/opt/build/arm-none-elf/gcc/../lib/gcc/../../lib/gcc/arm-elf/4.4.2/../../../../arm-elf/include"
ignoring nonexistent directory "../thumb"
ignoring nonexistent directory "../thumb"
ignoring nonexistent directory "../thumb"
ignoring nonexistent directory "/opt/devtools/arm-elf/include"
ignoring nonexistent directory "/opt/devtools/arm-elf/sys-include"
#include "..." search starts here:
#include <...> search starts here:
/opt/src/tooltrunk/libgfortran
/opt/src/tooltrunk/libgfortran/../gcc
/opt/src/tooltrunk/libgfortran/../gcc/config
../../.././gcc
/opt/build/arm-none-elf/./gcc/include
/opt/build/arm-none-elf/./gcc/include-fixed
/opt/build/arm-none-elf/arm-elf/thumb/newlib/targ-include
/opt/src/tooltrunk/newlib/libc/include
/opt/src/tooltrunk/libgfortran/io
End of search list.
GNU Fortran (GCC) version 4.4.2 20090927 (prerelease) (arm-elf)
compiled by GNU C version 4.4.1 20090725 (Red Hat 4.4.1-2), GMP version
4.3.1, MPFR version 2.4.2-dev.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
f2c_specifics.F90: In function '_gfortran_f2c_specific__cos_c8':
f2c_specifics.F90:2: internal compiler error: in find_valid_class, at
reload.c:700
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
--
Summary: ICE in libgfortran arm thumb multilib compile
Product: gcc
Version: 4.4.2
Status: UNCONFIRMED
Severity: critical
Priority: P3
Component: libfortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dougsemler at gmail dot com
GCC build triplet: x86_64-pc-linux-gnu
GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: arm-unknown-elf
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41482
