| Dan Gohman | 8a977e2 | 2010-01-26 19:25:59 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -analyze -scalar-evolution > %t |
| Dan Gohman | a334aa7 | 2009-06-22 00:31:57 +0000 | [diff] [blame] | 2 | ; RUN: grep sext %t | count 2 |
| Chandler Carruth | 4177e6f | 2012-07-02 12:47:22 +0000 | [diff] [blame] | 3 | ; RUN: not grep "(sext" %t |
| Dan Gohman | a334aa7 | 2009-06-22 00:31:57 +0000 | [diff] [blame] | 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 | } |