| ; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution | FileCheck %s |
| ; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s |
| |
| ; ScalarEvolution should be able to compute a maximum trip count |
| ; value sufficient to fold away both sext casts. |
| |
| 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" |
| |
| define float @t(float* %pTmp1, float* %peakWeight, float* %nrgReducePeakrate, i32 %bim) nounwind { |
| ; CHECK-LABEL: Classifying expressions for: @t |
| entry: |
| %tmp3 = load float, float* %peakWeight, align 4 |
| %tmp2538 = icmp sgt i32 %bim, 0 |
| br i1 %tmp2538, label %bb.nph, label %bb4 |
| |
| bb.nph: |
| br label %bb |
| |
| bb: |
| %distERBhi.036 = phi float [ %tmp10, %bb1 ], [ 0.000000e+00, %bb.nph ] |
| %hiPart.035 = phi i32 [ %tmp12, %bb1 ], [ 0, %bb.nph ] |
| %peakCount.034 = phi float [ %tmp19, %bb1 ], [ %tmp3, %bb.nph ] |
| %tmp6 = sext i32 %hiPart.035 to i64 |
| %tmp7 = getelementptr float, float* %pTmp1, i64 %tmp6 |
| ; CHECK: %tmp6 = sext i32 %hiPart.035 to i64 |
| ; CHECK-NEXT: --> {0,+,1}<nuw><nsw><%bb> |
| %tmp8 = load float, float* %tmp7, align 4 |
| %tmp10 = fadd float %tmp8, %distERBhi.036 |
| %tmp12 = add i32 %hiPart.035, 1 |
| %tmp15 = sext i32 %tmp12 to i64 |
| %tmp16 = getelementptr float, float* %peakWeight, i64 %tmp15 |
| ; CHECK: %tmp15 = sext i32 %tmp12 to i64 |
| ; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%bb> |
| %tmp17 = load float, float* %tmp16, align 4 |
| %tmp19 = fadd float %tmp17, %peakCount.034 |
| br label %bb1 |
| |
| bb1: |
| %tmp21 = fcmp olt float %tmp10, 2.500000e+00 |
| %tmp25 = icmp slt i32 %tmp12, %bim |
| %tmp27 = and i1 %tmp21, %tmp25 |
| br i1 %tmp27, label %bb, label %bb1.bb4_crit_edge |
| |
| bb1.bb4_crit_edge: |
| br label %bb4 |
| |
| bb4: |
| %distERBhi.0.lcssa = phi float [ %tmp10, %bb1.bb4_crit_edge ], [ 0.000000e+00, %entry ] |
| %peakCount.0.lcssa = phi float [ %tmp19, %bb1.bb4_crit_edge ], [ %tmp3, %entry ] |
| %tmp31 = fdiv float %peakCount.0.lcssa, %distERBhi.0.lcssa |
| ret float %tmp31 |
| } |