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Hello, This is an old patch written by Leehod Baruch which extends the vectorizer to support misaligned stores. It was previously posted to the mailing list by Dorit in the following mail- http://gcc.gnu.org/ml/gcc-patches/2007-01/msg00604.html (This posting also contains detailed explanation on the patch) Bootstrapped with vectorization enabled on powerpc64 and regtested on x86_64. OK for mainline? Thanks, Revital Changelog: * expr.c (expand_assignment): Expand MISALIGNED_INDIRECT_REF. (expand_expr_real_1): Remove comment. * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Vectorize misaligned access when the target supports it. (vect_supportable_dr_alignment): Check for unaligned access support. * tree-vect-stmts.c (vectorizable_store): Generate misaligned store and remove asset. testsuite Changelog: * lib/target-supports.exp: (check_effective_target_vect_hw_misalign): New procedure. * gcc.dg/vect/vect-50.c: Change checks to use vect_hw_misalign. * gcc.dg/vect/vect-33.c: Likewise. * gcc.dg/vect/vect-92.c: Likewise. * gcc.dg/vect/vect-58.c: Likewise. * gcc.dg/vect/no-section-anchors-vect-69.c: Likewise. * gcc.dg/vect/vect-42.c: Likewise. * gcc.dg/vect/slp-25.c: Likewise. * gcc.dg/vect/vect-align-1.c: Likewise. * gcc.dg/vect/vect-align-2.c: Likewise. * gcc.dg/vect/vect-93.c: Likewise. * gcc.dg/vect/no-scevccp-outer-8.c: Likewise. * gcc.dg/vect/costmodel/i386/costmodel-vect-31.c: Likewise. * gcc.dg/vect/costmodel/i386/costmodel-vect-33.c: Likewise. * gcc.dg/vect/costmodel/x86_64/costmodel-vect-31.c: Likewise. * gcc.dg/vect/costmodel/x86_64/costmodel-vect-33.c: Likewise. * gcc.dg/vect/vect-26.c: Likewise. * gcc.dg/vect/vect-44.c: Likewise. * gcc.dg/vect/vect-70.c: Likewise. * gcc.dg/vect/vect-95.c: Likewise. * gcc.dg/vect/no-section-anchors-vect-64.c: Likewise. * gcc.dg/vect/vect-28.c: Likewise. * gcc.dg/vect/no-section-anchors-vect-31.c: Likewise. * gcc.dg/vect/vect-87.c: Likewise. * gcc.dg/vect/vect-109.c: Likewise. * gcc.dg/vect/vect-54.c: Likewise. * gcc.dg/vect/vect-96.c: Likewise. * gcc.dg/vect/vect-multitypes-1.c: Likewise. * gcc.dg/vect/vect-88.c: Likewise. * gcc.dg/vect/no-section-anchors-vect-66.c: Likewise. * gcc.dg/vect/vect-89.c: Likewise. * gcc.dg/vect/vect-91.c: Likewise. * gcc.dg/vect/no-section-anchors-vect-68.c: Likewise. * gcc.dg/vect/vect-multitypes-4.c: Likewise. * gfortran.dg/vect/vect-2.f90: Likewise. * gfortran.dg/vect/vect-3.f90: Likewise. * gfortran.dg/vect/vect-4.f90: Likewise. * gfortran.dg/vect/vect-5.f90: Likewise. (See attached file: testsuite_misalign_store_patch_5_6.txt)(See attached file: misalign_store_patch_4_6.txt)
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testsuite_misalign_store_patch_5_6.txt
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Attachment:
misalign_store_patch_4_6.txt
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