[Bug target/48252] ARM neon: problem with consecutive vzip, vuzp and vtrn

["irar at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48252

--- Comment #7 from irar at gcc dot gnu.org 2011-05-05 08:39:47 UTC ---
Author: irar
Date: Thu May  5 08:39:40 2011
New Revision: 173418

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173418
Log:

    Backport from mainline:
    2011-04-18  Ulrich Weigand  <ulrich.weigand@linaro.org>
            Ira Rosen  <ira.rosen@linaro.org>

    PR target/48252
    * config/arm/arm.c (neon_emit_pair_result_insn): Swap arguments
    to match neon_vzip/vuzp/vtrn_internal.
    * config/arm/neon.md (neon_vtrn<mode>_internal): Make both
    outputs explicitly dependent on both inputs.
    (neon_vzip<mode>_internal, neon_vuzp<mode>_internal): Likewise.


Added:
    branches/gcc-4_6-branch/gcc/testsuite/gcc.target/arm/pr48252.c
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/config/arm/arm.c
    branches/gcc-4_6-branch/gcc/config/arm/neon.md
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog