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Date: Wed, 23 Mar 2011 23:57:00 -0000
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug regression/48262] Subversion id 171341 breaks various vectorization files on powerpc
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48262

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-03-23 23:40:18 UTC ---
;; Under VSX, vectors of 4/8 byte alignments do not need to be aligned
;; since the load already handles it.
(define_expand "movmisalign<mode>"
 [(set (match_operand:VEC_N 0 "vfloat_operand" "")
       (match_operand:VEC_N 1 "vfloat_operand" ""))]
 "VECTOR_MEM_VSX_P (<MODE>mode) && TARGET_ALLOW_MOVMISALIGN"
 "")

Only accepts registers while expr.c thinks the operands should allow memory
too.