1 ; RUN: opt < %s -loop-simplify -loop-rotate -instcombine -indvars -S -verify-loop-info -verify-dom-info | FileCheck %s 2 3 ; Loopsimplify should be able to merge the two loop exits 4 ; into one, so that loop rotate can rotate the loop, so 5 ; that indvars can promote the induction variable to i64 6 ; without needing casts. 7 8 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-n32:64" 9 10 ; CHECK-LABEL: @test1 11 ; CHECK: bb: 12 ; CHECK: phi i64 13 ; CHECK-NOT: phi i64 14 ; CHECK-NOT: sext 15 16 define float @test1(float* %pTmp1, float* %peakWeight, i32 %bandEdgeIndex) nounwind { 17 entry: 18 %t0 = load float, float* %peakWeight, align 4 19 br label %bb1 20 21 bb: ; preds = %bb2 22 %t1 = sext i32 %hiPart.0 to i64 23 %t2 = getelementptr float, float* %pTmp1, i64 %t1 24 %t3 = load float, float* %t2, align 4 25 %t4 = fadd float %t3, %distERBhi.0 26 %t5 = add i32 %hiPart.0, 1 27 %t6 = sext i32 %t5 to i64 28 %t7 = getelementptr float, float* %peakWeight, i64 %t6 29 %t8 = load float, float* %t7, align 4 30 %t9 = fadd float %t8, %peakCount.0 31 br label %bb1 32 33 bb1: ; preds = %bb, %entry 34 %peakCount.0 = phi float [ %t0, %entry ], [ %t9, %bb ] 35 %hiPart.0 = phi i32 [ 0, %entry ], [ %t5, %bb ] 36 %distERBhi.0 = phi float [ 0.000000e+00, %entry ], [ %t4, %bb ] 37 %t10 = fcmp uge float %distERBhi.0, 2.500000e+00 38 br i1 %t10, label %bb3, label %bb2 39 40 bb2: ; preds = %bb1 41 %t11 = add i32 %bandEdgeIndex, -1 42 %t12 = icmp sgt i32 %t11, %hiPart.0 43 br i1 %t12, label %bb, label %bb3 44 45 bb3: ; preds = %bb2, %bb1 46 %t13 = fdiv float %peakCount.0, %distERBhi.0 47 ret float %t13 48 } 49
