1 ; RUN: opt < %s -loop-simplify -loop-rotate -instcombine -indvars -S -verify-loop-info -verify-dom-info > %t
2 ; RUN: not grep sext %t
3 ; RUN: grep {phi i64} %t | count 1
5 ; Loopsimplify should be able to merge the two loop exits
6 ; into one, so that loop rotate can rotate the loop, so
7 ; that indvars can promote the induction variable to i64
8 ; without needing casts.
10 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-n:32:64"
12 define float @t(float* %pTmp1, float* %peakWeight, i32 %bandEdgeIndex) nounwind {
14 %t0 = load float* %peakWeight, align 4 ; <float> [#uses=1]
18 %t1 = sext i32 %hiPart.0 to i64 ; <i64> [#uses=1]
19 %t2 = getelementptr float* %pTmp1, i64 %t1 ; <float*> [#uses=1]
20 %t3 = load float* %t2, align 4 ; <float> [#uses=1]
21 %t4 = fadd float %t3, %distERBhi.0 ; <float> [#uses=1]
22 %t5 = add i32 %hiPart.0, 1 ; <i32> [#uses=2]
23 %t6 = sext i32 %t5 to i64 ; <i64> [#uses=1]
24 %t7 = getelementptr float* %peakWeight, i64 %t6 ; <float*> [#uses=1]
25 %t8 = load float* %t7, align 4 ; <float> [#uses=1]
26 %t9 = fadd float %t8, %peakCount.0 ; <float> [#uses=1]
29 bb1: ; preds = %bb, %entry
30 %peakCount.0 = phi float [ %t0, %entry ], [ %t9, %bb ] ; <float> [#uses=2]
31 %hiPart.0 = phi i32 [ 0, %entry ], [ %t5, %bb ] ; <i32> [#uses=3]
32 %distERBhi.0 = phi float [ 0.000000e+00, %entry ], [ %t4, %bb ] ; <float> [#uses=3]
33 %t10 = fcmp uge float %distERBhi.0, 2.500000e+00 ; <i1> [#uses=1]
34 br i1 %t10, label %bb3, label %bb2
37 %t11 = add i32 %bandEdgeIndex, -1 ; <i32> [#uses=1]
38 %t12 = icmp sgt i32 %t11, %hiPart.0 ; <i1> [#uses=1]
39 br i1 %t12, label %bb, label %bb3
41 bb3: ; preds = %bb2, %bb1
42 %t13 = fdiv float %peakCount.0, %distERBhi.0 ; <float> [#uses=1]