On Mon, 12 May 2014, Evgeny Stupachenko wrote:
> The test is on general changes. However I was able to test it on x86 only.
> I see 2 possible solutions:
> 1. Set the test for x86 only.
> 2. Modify it so that it will pass on sparc-sun-solaris2.
>
> If 2. is not acceptable I'll create patch for 1.
> Currently I don't see why "in0_9 = *in_27" is not supported. Does the
> test fail because of unsupported permutation?
The test uses
/* { dg-options "-O2 -g -ftree-vectorize -mssse3 -fdump-tree-vect-details"
{ target { i?86-*-* x86_64-*-* } } } */
that's bogus. You shouldn't add any dg-options. Instead use proper
dg-effective-target checks for the mssse3 feature you are using.
Note that the dg-final checking is applied regardless of the options
above are applied or not.
Why does the test only succeed with -mssse3 btw?
The proper way to restrict the test to a single target is to use
/* { dg-skip-if "why" { ! { x86_64-*-* i?86-*-* } } } */
Sorry for not catching this in the review.
Richard.
>
> On Mon, May 12, 2014 at 7:14 PM, Rainer Orth
> <[email protected]> wrote:
> > Evgeny Stupachenko <[email protected]> writes:
> >
> >> Patch with fixes attached.
> >> Currently if-structure is as following:
> >> + if (count == 3)
> >> ...
> >> + else
> >> + {
> >> + /* If length is not equal to 3 then only power of 2 is
> >> supported. */
> >> + gcc_assert (exact_log2 (count) != -1);
> >>
> >> For stores group I've created another mail thread.
> > [...]
> >>>> 2014-05-06 Evgeny Stupachenko <[email protected]>
> >>>>
> >>>> PR tree-optimization/52252
> >>>> * gcc.dg/vect/pr52252-ld.c: Test on loads group of size 3.
> >
> > This test FAILs on sparc-sun-solaris2.11, both 32 and 64-bit:
> >
> > FAIL: gcc.dg/vect/pr52252-ld.c scan-tree-dump-times vect "vectorized 1
> > loops" 1
> > FAIL: gcc.dg/vect/pr52252-ld.c -flto -ffat-lto-objects
> > scan-tree-dump-times vect "vectorized 1 loops" 1
> >
> > The dumps have
> >
> > /vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/vect/pr52252-ld.c:10:3:
> > note: not vectorized: relevant stmt not supported: in0_9 = *in_27;
> > /vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/vect/pr52252-ld.c:7:1:
> > note: vectorized 0 loops in function.
> >
> > Rainer
> >
> > --
> > -----------------------------------------------------------------------------
> > Rainer Orth, Center for Biotechnology, Bielefeld University
>
>
--
Richard Biener <[email protected]>
SUSE / SUSE Labs
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