1 ; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s 2 3 ; ScalarEvolution should be able to compute a maximum trip count 4 ; value sufficient to fold away both sext casts. 5 6 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" 7 8 define float @t(float* %pTmp1, float* %peakWeight, float* %nrgReducePeakrate, i32 %bim) nounwind { 9 ; CHECK-LABEL: Classifying expressions for: @t 10 entry: 11 %tmp3 = load float, float* %peakWeight, align 4 12 %tmp2538 = icmp sgt i32 %bim, 0 13 br i1 %tmp2538, label %bb.nph, label %bb4 14 15 bb.nph: 16 br label %bb 17 18 bb: 19 %distERBhi.036 = phi float [ %tmp10, %bb1 ], [ 0.000000e+00, %bb.nph ] 20 %hiPart.035 = phi i32 [ %tmp12, %bb1 ], [ 0, %bb.nph ] 21 %peakCount.034 = phi float [ %tmp19, %bb1 ], [ %tmp3, %bb.nph ] 22 %tmp6 = sext i32 %hiPart.035 to i64 23 %tmp7 = getelementptr float, float* %pTmp1, i64 %tmp6 24 ; CHECK: %tmp6 = sext i32 %hiPart.035 to i64 25 ; CHECK-NEXT: --> {0,+,1}<nuw><nsw><%bb> 26 %tmp8 = load float, float* %tmp7, align 4 27 %tmp10 = fadd float %tmp8, %distERBhi.036 28 %tmp12 = add i32 %hiPart.035, 1 29 %tmp15 = sext i32 %tmp12 to i64 30 %tmp16 = getelementptr float, float* %peakWeight, i64 %tmp15 31 ; CHECK: %tmp15 = sext i32 %tmp12 to i64 32 ; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%bb> 33 %tmp17 = load float, float* %tmp16, align 4 34 %tmp19 = fadd float %tmp17, %peakCount.034 35 br label %bb1 36 37 bb1: 38 %tmp21 = fcmp olt float %tmp10, 2.500000e+00 39 %tmp25 = icmp slt i32 %tmp12, %bim 40 %tmp27 = and i1 %tmp21, %tmp25 41 br i1 %tmp27, label %bb, label %bb1.bb4_crit_edge 42 43 bb1.bb4_crit_edge: 44 br label %bb4 45 46 bb4: 47 %distERBhi.0.lcssa = phi float [ %tmp10, %bb1.bb4_crit_edge ], [ 0.000000e+00, %entry ] 48 %peakCount.0.lcssa = phi float [ %tmp19, %bb1.bb4_crit_edge ], [ %tmp3, %entry ] 49 %tmp31 = fdiv float %peakCount.0.lcssa, %distERBhi.0.lcssa 50 ret float %tmp31 51 } 52
