Re: simd-2.c failing on powerpc-linux

[Aldy Hernandez <aldyh at redhat dot com>]

> >  unrecognizable insn:
> > (insn 403 407 404 0 (nil) (set (subreg:SI (reg:V8HI 123) 0)
> >         (subreg:SI (const_vector:V8HI [
> >                     (const_int 0 [0x0])
> >                     (const_int 0 [0x0])
> >                     (const_int 0 [0x0])
> >                     (const_int 0 [0x0])
> >                     (const_int 0 [0x0])
> >                     (const_int 0 [0x0])
> >                     (const_int 0 [0x0])
> >                     (const_int 0 [0x0])
> >                 ]) 0)) -1 (insn_list 407 (nil))
> 
> I have tested i686-pc-linux-gnu X powerpc-eabi with the patches described here:
> 
> http://gcc.gnu.org/ml/gcc-patches/2002-07/msg00040.html
> 
> And indeed, there was no such failure.

hmm, did i say powerpc-eabi?  i might have meant alpha.... which i'm sure
has that failure as of a few days ago.

you can probably reproduce with just building cc1 and running it on the
testcase.

*goes check*

yup, alpha broken:

Executing on host: /nfs/es/scratch/aldyh/build/alpha1/gcc/xgcc -B/nfs/es/scratch/aldyh/build/alpha1/gcc/ /home/aldyh/source/gcc/gcc/testsuite/gcc.c-torture/execute/simd-2.c  -w  -O1   -lm   -o /home/aldyh/build/alpha1/gcc/testsuite/simd-2.x1    (timeout = 300)
/home/aldyh/source/gcc/gcc/testsuite/gcc.c-torture/execute/simd-2.c: In function `main':
/home/aldyh/source/gcc/gcc/testsuite/gcc.c-torture/execute/simd-2.c:53: error: unrecognizable insn:
(insn 344 346 345 0 (nil) (set (subreg:DI (reg:V8HI 73) 0)
        (subreg:DI (const_vector:V8HI [
                    (const_int 0 [0x0])
                    (const_int 0 [0x0])
                    (const_int 0 [0x0])
                    (const_int 0 [0x0])
                    (const_int 0 [0x0])
                    (const_int 0 [0x0])
                    (const_int 0 [0x0])
                    (const_int 0 [0x0])
                ]) 0)) -1 (insn_list 346 (nil))
    (nil))
/home/aldyh/source/gcc/gcc/testsuite/gcc.c-torture/execute/simd-2.c:53: internal compiler error: Internal compiler error in extract_insn, at recog.c:2130
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
compiler exited with status 1