1; RUN: llc -mcpu=pwr7 -disable-ppc-preinc-prep < %s | FileCheck %s
2; RUN: llc -mcpu=pwr7 < %s | FileCheck %s -check-prefix=PIP
3target datalayout = "E-m:e-i64:64-n32:64"
4target triple = "powerpc64-unknown-linux-gnu"
5
6; Function Attrs: nounwind
7define double @foo() #1 {
8entry:
9  %x = alloca [2048 x float], align 4
10  %y = alloca [2048 x float], align 4
11  %0 = bitcast [2048 x float]* %x to i8*
12  call void @llvm.lifetime.start(i64 8192, i8* %0) #2
13  %1 = bitcast [2048 x float]* %y to i8*
14  call void @llvm.lifetime.start(i64 8192, i8* %1) #2
15  br label %for.body.i
16
17; CHECK-LABEL: @foo
18; CHECK: addi [[REG1:[0-9]+]], 1,
19; CHECK: addi [[REG2:[0-9]+]], 1,
20; CHECK: %for.body.i
21; CHECK-DAG: lfsx {{[0-9]+}}, [[REG1]],
22; CHECK-DAG: lfsx {{[0-9]+}}, [[REG2]],
23; CHECK: blr
24
25; PIP-LABEL: @foo
26; PIP: addi [[REG1:[0-9]+]], 1,
27; PIP: addi [[REG2:[0-9]+]], 1,
28; PIP: %for.body.i
29; PIP-DAG: lfsu {{[0-9]+}}, 4([[REG1]])
30; PIP-DAG: lfsu {{[0-9]+}}, 4([[REG2]])
31; PIP: blr
32
33for.body.i:                                       ; preds = %for.body.i.preheader, %for.body.i
34  %accumulator.09.i = phi double [ %add.i, %for.body.i ], [ 0.000000e+00, %entry ]
35  %i.08.i = phi i64 [ %inc.i, %for.body.i ], [ 0, %entry ]
36  %arrayidx.i = getelementptr inbounds [2048 x float], [2048 x float]* %x, i64 0, i64 %i.08.i
37  %v14 = load float, float* %arrayidx.i, align 4
38  %conv.i = fpext float %v14 to double
39  %arrayidx1.i = getelementptr inbounds [2048 x float], [2048 x float]* %y, i64 0, i64 %i.08.i
40  %v15 = load float, float* %arrayidx1.i, align 4
41  %conv2.i = fpext float %v15 to double
42  %mul.i = fmul double %conv.i, %conv2.i
43  %add.i = fadd double %accumulator.09.i, %mul.i
44  %inc.i = add nuw nsw i64 %i.08.i, 1
45  %exitcond.i = icmp eq i64 %i.08.i, 2047
46  br i1 %exitcond.i, label %loop.exit, label %for.body.i
47
48loop.exit:                                        ; preds = %for.body.i
49  ret double %accumulator.09.i
50}
51
52; Function Attrs: nounwind
53declare void @llvm.lifetime.start(i64, i8* nocapture) #2
54
55declare void @bar(float*, float*)
56
57; Function Attrs: nounwind
58declare void @llvm.lifetime.end(i64, i8* nocapture) #2
59
60attributes #0 = { nounwind readonly }
61attributes #1 = { nounwind }
62attributes #2 = { nounwind }
63
64
65