1 ; RUN: llc < %s -mtriple=i386-apple-darwin -mattr=+sse2 -stats |& FileCheck %s
2 ; Now this test spills one register. But a reload in the loop is cheaper than
3 ; the divsd so it's a win.
5 define fastcc void @fourn(double* %data, i32 %isign) nounwind {
10 bb: ; preds = %bb, %entry
11 %indvar93 = phi i32 [ 0, %entry ], [ %idim.030, %bb ] ; <i32> [#uses=2]
12 %idim.030 = add i32 %indvar93, 1 ; <i32> [#uses=1]
13 %0 = add i32 %indvar93, 2 ; <i32> [#uses=1]
14 %1 = icmp sgt i32 %0, 2 ; <i1> [#uses=1]
15 br i1 %1, label %bb30.loopexit, label %bb
17 ; CHECK: %bb30.loopexit
19 ; CHECK: movsd %xmm0, 16(%esp)
22 bb3: ; preds = %bb30.loopexit, %bb25, %bb3
23 %2 = load i32* null, align 4 ; <i32> [#uses=1]
24 %3 = mul i32 %2, 0 ; <i32> [#uses=1]
25 %4 = icmp slt i32 0, %3 ; <i1> [#uses=1]
26 br i1 %4, label %bb18, label %bb3
29 %5 = fdiv double %11, 0.000000e+00 ; <double> [#uses=1]
30 %6 = tail call double @sin(double %5) nounwind readonly ; <double> [#uses=1]
31 br label %bb24.preheader
33 bb22.preheader: ; preds = %bb24.preheader, %bb22.preheader
34 br label %bb22.preheader
36 bb25: ; preds = %bb24.preheader
37 %7 = fmul double 0.000000e+00, %6 ; <double> [#uses=0]
38 %8 = add i32 %i3.122100, 0 ; <i32> [#uses=1]
39 %9 = icmp sgt i32 %8, 0 ; <i1> [#uses=1]
40 br i1 %9, label %bb3, label %bb24.preheader
42 bb24.preheader: ; preds = %bb25, %bb18
43 %i3.122100 = or i32 0, 1 ; <i32> [#uses=2]
44 %10 = icmp slt i32 0, %i3.122100 ; <i1> [#uses=1]
45 br i1 %10, label %bb25, label %bb22.preheader
47 bb30.loopexit: ; preds = %bb
48 %11 = fmul double 0.000000e+00, 0x401921FB54442D1C ; <double> [#uses=1]
52 declare double @sin(double) nounwind readonly