1target 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"
2target triple = "x86_64-unknown-linux-gnu"
3; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -bb-vectorize -bb-vectorize-req-chain-depth=3 -instcombine -gvn -S | FileCheck %s
4; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -basicaa -loop-unroll -unroll-threshold=45 -unroll-allow-partial -bb-vectorize -bb-vectorize-req-chain-depth=3 -instcombine -gvn -S | FileCheck %s -check-prefix=CHECK-UNRL
5; The second check covers the use of alias analysis (with loop unrolling).
6
7define void @test1(double* noalias %out, double* noalias %in1, double* noalias %in2) nounwind uwtable {
8entry:
9  br label %for.body
10; CHECK-LABEL: @test1(
11; CHECK-UNRL-LABEL: @test1(
12
13for.body:                                         ; preds = %for.body, %entry
14  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
15  %arrayidx = getelementptr inbounds double, double* %in1, i64 %indvars.iv
16  %0 = load double, double* %arrayidx, align 8
17  %arrayidx2 = getelementptr inbounds double, double* %in2, i64 %indvars.iv
18  %1 = load double, double* %arrayidx2, align 8
19  %mul = fmul double %0, %0
20  %mul3 = fmul double %0, %1
21  %add = fadd double %mul, %mul3
22  %add4 = fadd double %1, %1
23  %add5 = fadd double %add4, %0
24  %mul6 = fmul double %0, %add5
25  %add7 = fadd double %add, %mul6
26  %mul8 = fmul double %1, %1
27  %add9 = fadd double %0, %0
28  %add10 = fadd double %add9, %0
29  %mul11 = fmul double %mul8, %add10
30  %add12 = fadd double %add7, %mul11
31  %arrayidx14 = getelementptr inbounds double, double* %out, i64 %indvars.iv
32  store double %add12, double* %arrayidx14, align 8
33  %indvars.iv.next = add i64 %indvars.iv, 1
34  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
35  %exitcond = icmp eq i32 %lftr.wideiv, 10
36  br i1 %exitcond, label %for.end, label %for.body
37; CHECK: insertelement
38; CHECK-NEXT: insertelement
39; CHECK-NEXT: fadd <2 x double>
40; CHECK-NEXT: insertelement
41; CHECK-NEXT: insertelement
42; CHECK-NEXT: fadd <2 x double>
43; CHECK-NEXT: insertelement
44; CHECK-NEXT: fmul <2 x double>
45
46; CHECK-UNRL: %mul = fmul <2 x double> %2, %2
47; CHECK-UNRL: %mul3 = fmul <2 x double> %2, %3
48; CHECK-UNRL: %add = fadd <2 x double> %mul, %mul3
49; CHECK-UNRL: %add4 = fadd <2 x double> %3, %3
50; CHECK-UNRL: %add5 = fadd <2 x double> %add4, %2
51; CHECK-UNRL: %mul6 = fmul <2 x double> %2, %add5
52; CHECK-UNRL: %add7 = fadd <2 x double> %add, %mul6
53; CHECK-UNRL: %mul8 = fmul <2 x double> %3, %3
54; CHECK-UNRL: %add9 = fadd <2 x double> %2, %2
55; CHECK-UNRL: %add10 = fadd <2 x double> %add9, %2
56; CHECK-UNRL: %mul11 = fmul <2 x double> %mul8, %add10
57; CHECK-UNRL: %add12 = fadd <2 x double> %add7, %mul11
58
59for.end:                                          ; preds = %for.body
60  ret void
61}
62