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SLPVectorize: Add support for vectorization of casts.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179975 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2013-04-21 08:05:59 +00:00
parent bd65805016
commit b86dff862f
2 changed files with 107 additions and 0 deletions
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38
test/Transforms/SLPVectorizer/X86/cast.ll Normal file
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; RUN: opt < %s -basicaa -slp-vectorizer -dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.9.0"
; int foo(int * restrict A, char * restrict B) {
; A[0] = B[0];
; A[1] = B[1];
; A[2] = B[2];
; A[3] = B[3];
; }
;CHECK: @foo
;CHECK: load <4 x i8>
;CHECK: sext
;CHECK: store <4 x i32>
define i32 @foo(i32* noalias nocapture %A, i8* noalias nocapture %B) {
entry:
%0 = load i8* %B, align 1
%conv = sext i8 %0 to i32
store i32 %conv, i32* %A, align 4
%arrayidx2 = getelementptr inbounds i8* %B, i64 1
%1 = load i8* %arrayidx2, align 1
%conv3 = sext i8 %1 to i32
%arrayidx4 = getelementptr inbounds i32* %A, i64 1
store i32 %conv3, i32* %arrayidx4, align 4
%arrayidx5 = getelementptr inbounds i8* %B, i64 2
%2 = load i8* %arrayidx5, align 1
%conv6 = sext i8 %2 to i32
%arrayidx7 = getelementptr inbounds i32* %A, i64 2
store i32 %conv6, i32* %arrayidx7, align 4
%arrayidx8 = getelementptr inbounds i8* %B, i64 3
%3 = load i8* %arrayidx8, align 1
%conv9 = sext i8 %3 to i32
%arrayidx10 = getelementptr inbounds i32* %A, i64 3
store i32 %conv9, i32* %arrayidx10, align 4
ret i32 undef
}