llvm-6502/test/Transforms/SLPVectorizer/X86/multi_user.ll
Nadav Rotem 3f75c6cfb5 SLPVectorizer: Change the order in which new instructions are added to the function.
We are not working on a DAG and I ran into a number of problems when I enabled the vectorizations of 'diamond-trees' (trees that share leafs).
* Imroved the numbering API.
* Changed the placement of new instructions to the last root.
* Fixed a bug with external tree users with non-zero lane.
* Fixed a bug in the placement of in-tree users.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182508 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-22 19:47:32 +00:00

48 lines
1.4 KiB
LLVM

; 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-macosx10.7.0"
;int foo (int *A, int n) {
; A[0] += n * 5 + 7;
; A[1] += n * 5 + 8;
; A[2] += n * 5 + 9;
; A[3] += n * 5 + 10;
; A[4] += n * 5 + 11;
;}
;CHECK: @foo
;CHECK: load <4 x i32>
;CHECK: insertelement <4 x i32>
;CHECK: add <4 x i32>
;CHECK: store <4 x i32>
;CHECK: ret
define i32 @foo(i32* nocapture %A, i32 %n) {
%1 = mul nsw i32 %n, 5
%2 = add nsw i32 %1, 7
%3 = load i32* %A, align 4
%4 = add nsw i32 %2, %3
store i32 %4, i32* %A, align 4
%5 = add nsw i32 %1, 8
%6 = getelementptr inbounds i32* %A, i64 1
%7 = load i32* %6, align 4
%8 = add nsw i32 %5, %7
store i32 %8, i32* %6, align 4
%9 = add nsw i32 %1, 9
%10 = getelementptr inbounds i32* %A, i64 2
%11 = load i32* %10, align 4
%12 = add nsw i32 %9, %11
store i32 %12, i32* %10, align 4
%13 = add nsw i32 %1, 10
%14 = getelementptr inbounds i32* %A, i64 3
%15 = load i32* %14, align 4
%16 = add nsw i32 %13, %15
store i32 %16, i32* %14, align 4
%17 = add nsw i32 %1, 11
%18 = getelementptr inbounds i32* %A, i64 4
%19 = load i32* %18, align 4
%20 = add nsw i32 %17, %19
store i32 %20, i32* %18, align 4
ret i32 undef
}