------- Comment #7 from iains at gcc dot gnu dot org  2010-09-05 14:24 -------
(In reply to comment #6)
> (In reply to comment #5)

> -v for one failing testcase - I want to see what standard -march/tune
> your config uses.

we default to generic 
(FWIW, the same fail occurs also for me on i686-darwin9 with -mtune=core2).

$  /GCC/gcc-4-6-reghunt-build/gcc/xgcc -B/GCC/gcc-4-6-reghunt-build/gcc/
/GCC/gcc-4-6-reghunt/libgomp/testsuite/libgomp.fortran/appendix-a/a.16.1.f90 
-B/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp/
-B/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp/.libs
-I/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp
-I/GCC/gcc-4-6-reghunt/libgomp/testsuite/.. -shared-libgcc -fmessage-length=0
-fopenmp  -Os  
-B/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp/../libgfortran/.libs
  -L/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp/.libs -lgomp
-L/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp/../libgfortran/.libs
-lgfortran -lm   -m64 -o ./a.16.1.exe -v
Reading specs from /GCC/gcc-4-6-reghunt-build/gcc/specs
COLLECT_GCC=/GCC/gcc-4-6-reghunt-build/gcc/xgcc
COLLECT_LTO_WRAPPER=/GCC/gcc-4-6-reghunt-build/gcc/lto-wrapper
Target: i686-apple-darwin9
Configured with: ../gcc-4-6-reghunt/configure --prefix=/GCC/tobjc
--target=i686-apple-darwin9 --host=i686-apple-darwin9
--build=i686-apple-darwin9 --enable-version-specific-runtime-libs
--enable-threads --enable-checking=yes --program-suffix=-4.6rh
--with-libiconv-prefix=/usr --with-system-zlib --enable-languages=c,fortran
CC=gcc-4.2 CXX=g++-4.2
Thread model: posix
gcc version 4.6.0 20100905 (experimental) [trunk revision 163877] (GCC) 
COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.5.8' '-B'
'/GCC/gcc-4-6-reghunt-build/gcc/' '-B'
'/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp/' '-B'
'/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp/.libs' '-I'
'/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp' '-I'
'/GCC/gcc-4-6-reghunt/libgomp/testsuite/..' '-shared-libgcc'
'-fmessage-length=0' '-fopenmp' '-Os' '-B'
'/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp/../libgfortran/.libs'
'-L/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp/.libs'
'-L/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp/../libgfortran/.libs'
'-m64' '-o' './a.16.1.exe' '-v' '-mtune=generic'
 /GCC/gcc-4-6-reghunt-build/gcc/f951
/GCC/gcc-4-6-reghunt/libgomp/testsuite/libgomp.fortran/appendix-a/a.16.1.f90 -I
/GCC/gcc-4-6-reghunt-build/i686-apple-darwin9/x86_64/libgomp -I
/GCC/gcc-4-6-reghunt/libgomp/testsuite/.. -fPIC -quiet -dumpbase a.16.1.f90
-mmacosx-version-min=10.5.8 -m64 -mtune=generic -auxbase a.16.1 -Os -version
-fmessage-length=0 -fopenmp -fintrinsic-modules-path finclude -o
/var/folders/OW/OW-PGOtgHbKakssxFpJpkU++-0E/-Tmp-//cc74lrzb.s
GNU Fortran (GCC) version 4.6.0 20100905 (experimental) [trunk revision 163877]
(i686-apple-darwin9)
        compiled by GNU C version 4.6.0 20100905 (experimental) [trunk revision
163877], GMP version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU Fortran (GCC) version 4.6.0 20100905 (experimental) [trunk revision 163877]
(i686-apple-darwin9)
        compiled by GNU C version 4.6.0 20100905 (experimental) [trunk revision
163877], GMP version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
/GCC/gcc-4-6-reghunt/libgomp/testsuite/libgomp.fortran/appendix-a/a.16.1.f90:
In function ‘a16’:
/GCC/gcc-4-6-reghunt/libgomp/testsuite/libgomp.fortran/appendix-a/a.16.1.f90:26:0:
internal compiler error: in refs_may_alias_p_1, at tree-ssa-alias.c:1040
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45534