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r267654 - in /trunk/gcc: ChangeLog tree-vect-st...
- From: rsandifo at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Mon, 07 Jan 2019 18:53:44 -0000
- Subject: r267654 - in /trunk/gcc: ChangeLog tree-vect-st...
Author: rsandifo
Date: Mon Jan 7 18:53:44 2019
New Revision: 267654
URL: https://gcc.gnu.org/viewcvs?rev=267654&root=gcc&view=rev
Log:
Fix IFN_MASK_STORE handling of IFN_GOMP_SIMD_LANE
The IFN_GOMP_SIMD_LANE handling in vectorizable_store tries to use MEM_REF
offsets to maintain pointer disambiguation info. This patch makes sure
that we don't try to do the same optimisation for IFN_MASK_STOREs, which
have no similar offset argument.
The patch fixes libgomp.c-c++-common/pr66199-*.c for SVE. Previously
we had an ncopies==2 store and stored both halves to the same address.
2019-01-07 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-vect-stmts.c (vectorizable_store): Don't use the dataref_offset
optimization for masked stores.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-vect-stmts.c