From: rsandifo Date: Mon, 7 Jan 2019 18:53:44 +0000 (+0000) Subject: Fix IFN_MASK_STORE handling of IFN_GOMP_SIMD_LANE X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=398650c9d3aa85568b8aa250a2c76c19ac9c3e38;p=thirdparty%2Fgcc.git 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 gcc/ * tree-vect-stmts.c (vectorizable_store): Don't use the dataref_offset optimization for masked stores. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@267654 138bc75d-0d04-0410-961f-82ee72b054a4 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c236588c23a5..c2074578d3f4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2019-01-07 Richard Sandiford + + * tree-vect-stmts.c (vectorizable_store): Don't use the dataref_offset + optimization for masked stores. + 2019-01-07 Richard Sandiford PR middle-end/88567 diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index 45550927069a..c0e19dd178c4 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -7059,6 +7059,7 @@ vectorizable_store (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi, bool simd_lane_access_p = STMT_VINFO_SIMD_LANE_ACCESS_P (stmt_info); if (simd_lane_access_p + && !loop_masks && TREE_CODE (DR_BASE_ADDRESS (first_dr_info->dr)) == ADDR_EXPR && VAR_P (TREE_OPERAND (DR_BASE_ADDRESS (first_dr_info->dr), 0)) && integer_zerop (DR_OFFSET (first_dr_info->dr))