1 ; RUN: opt < %s -analyze -scalar-evolution > %t 2 ; RUN: grep sext %t | count 2 3 ; RUN: not grep {(sext} %t 4 5 ; ScalarEvolution should be able to compute a maximum trip count 6 ; value sufficient to fold away both sext 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" 9 10 define float @t(float* %pTmp1, float* %peakWeight, float* %nrgReducePeakrate, i32 %bim) nounwind { 11 entry: 12 %tmp3 = load float* %peakWeight, align 4 ; <float> [#uses=2] 13 %tmp2538 = icmp sgt i32 %bim, 0 ; <i1> [#uses=1] 14 br i1 %tmp2538, label %bb.nph, label %bb4 15 16 bb.nph: ; preds = %entry 17 br label %bb 18 19 bb: ; preds = %bb1, %bb.nph 20 %distERBhi.036 = phi float [ %tmp10, %bb1 ], [ 0.000000e+00, %bb.nph ] ; <float> [#uses=1] 21 %hiPart.035 = phi i32 [ %tmp12, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=2] 22 %peakCount.034 = phi float [ %tmp19, %bb1 ], [ %tmp3, %bb.nph ] ; <float> [#uses=1] 23 %tmp6 = sext i32 %hiPart.035 to i64 ; <i64> [#uses=1] 24 %tmp7 = getelementptr float* %pTmp1, i64 %tmp6 ; <float*> [#uses=1] 25 %tmp8 = load float* %tmp7, align 4 ; <float> [#uses=1] 26 %tmp10 = fadd float %tmp8, %distERBhi.036 ; <float> [#uses=3] 27 %tmp12 = add i32 %hiPart.035, 1 ; <i32> [#uses=3] 28 %tmp15 = sext i32 %tmp12 to i64 ; <i64> [#uses=1] 29 %tmp16 = getelementptr float* %peakWeight, i64 %tmp15 ; <float*> [#uses=1] 30 %tmp17 = load float* %tmp16, align 4 ; <float> [#uses=1] 31 %tmp19 = fadd float %tmp17, %peakCount.034 ; <float> [#uses=2] 32 br label %bb1 33 34 bb1: ; preds = %bb 35 %tmp21 = fcmp olt float %tmp10, 2.500000e+00 ; <i1> [#uses=1] 36 %tmp25 = icmp slt i32 %tmp12, %bim ; <i1> [#uses=1] 37 %tmp27 = and i1 %tmp21, %tmp25 ; <i1> [#uses=1] 38 br i1 %tmp27, label %bb, label %bb1.bb4_crit_edge 39 40 bb1.bb4_crit_edge: ; preds = %bb1 41 br label %bb4 42 43 bb4: ; preds = %bb1.bb4_crit_edge, %entry 44 %distERBhi.0.lcssa = phi float [ %tmp10, %bb1.bb4_crit_edge ], [ 0.000000e+00, %entry ] ; <float> [#uses=1] 45 %peakCount.0.lcssa = phi float [ %tmp19, %bb1.bb4_crit_edge ], [ %tmp3, %entry ] ; <float> [#uses=1] 46 %tmp31 = fdiv float %peakCount.0.lcssa, %distERBhi.0.lcssa ; <float> [#uses=1] 47 ret float %tmp31 48 } 49
