From 9ef66a8266dc52cb60610096ca302c5d82700bf4 Mon Sep 17 00:00:00 2001 From: Serge Pavlov Date: Sun, 11 May 2014 08:46:12 +0000 Subject: Reorder shuffle and binary operation. This patch enables transformations: BinOp(shuffle(v1), shuffle(v2)) -> shuffle(BinOp(v1, v2)) BinOp(shuffle(v1), const1) -> shuffle(BinOp, const2) They allow to eliminate extra shuffles in some cases. Differential Revision: http://reviews.llvm.org/D3525 llvm-svn: 208488 --- llvm/test/Transforms/LoopVectorize/store-shuffle-bug.ll | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) (limited to 'llvm/test/Transforms/LoopVectorize') diff --git a/llvm/test/Transforms/LoopVectorize/store-shuffle-bug.ll b/llvm/test/Transforms/LoopVectorize/store-shuffle-bug.ll index 0ec8010756d..e53c1206e42 100644 --- a/llvm/test/Transforms/LoopVectorize/store-shuffle-bug.ll +++ b/llvm/test/Transforms/LoopVectorize/store-shuffle-bug.ll @@ -19,18 +19,13 @@ entry: ; CHECK-LABEL: @t( ; CHECK: vector.body: -; CHECK: load <4 x i32> -; CHECK: [[VAR1:%[a-zA-Z0-9]+]] = shufflevector -; CHECK: load <4 x i32> -; CHECK: [[VAR2:%[a-zA-Z0-9]+]] = shufflevector +; CHECK: [[VAR1:%[a-zA-Z0-9.]+]] = load <4 x i32> +; CHECK: [[VAR2:%[a-zA-Z0-9.]+]] = load <4 x i32> ; CHECK: [[VAR3:%[a-zA-Z0-9]+]] = add nsw <4 x i32> [[VAR2]], [[VAR1]] -; CHECK: [[VAR4:%[a-zA-Z0-9]+]] = shufflevector <4 x i32> [[VAR3]] -; CHECK: store <4 x i32> [[VAR4]] -; CHECK: load <4 x i32> -; CHECK: [[VAR5:%[a-zA-Z0-9]+]] = shufflevector -; CHECK-NOT: add nsw <4 x i32> [[VAR4]], [[VAR5]] -; CHECK-NOT: add nsw <4 x i32> [[VAR5]], [[VAR4]] -; CHECK: add nsw <4 x i32> [[VAR3]], [[VAR5]] +; CHECK: store <4 x i32> [[VAR3]] +; CHECK: [[VAR4:%[a-zA-Z0-9.]+]] = load <4 x i32> +; CHECK: add nsw <4 x i32> [[VAR3]], [[VAR4]] +; CHECK-NOT: shufflevector for.body: %indvars.iv = phi i64 [ 93, %entry ], [ %indvars.iv.next, %for.body ] -- cgit v1.2.3