| Andrew Trick | 6796ab4 | 2014-01-06 19:43:14 +0000 | [diff] [blame^] | 1 | ; RUN: opt -indvars -S %s | FileCheck %s |
| 2 | ; |
| 3 | ; PR18384: ValueHandleBase::ValueIsDeleted. |
| 4 | ; |
| 5 | ; Ensure that LoopSimplify calls ScalarEvolution::forgetLoop before |
| 6 | ; deleting a block, regardless of whether any values were hoisted out |
| 7 | ; of the block. |
| 8 | |
| 9 | target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128" |
| 10 | target triple = "x86_64-apple-darwin" |
| 11 | |
| 12 | %struct.Params = type { [2 x [4 x [16 x i16]]] } |
| 13 | |
| 14 | ; Verify that the loop tail is deleted, and we don't crash! |
| 15 | ; |
| 16 | ; CHECK-LABEL: @t |
| 17 | ; CHECK-LABEL: for.cond127.preheader: |
| 18 | ; CHECK-NOT: for.cond127: |
| 19 | ; CHECK-LABEL: for.body129: |
| 20 | define void @t() { |
| 21 | entry: |
| 22 | br label %for.body102 |
| 23 | |
| 24 | for.body102: |
| 25 | br i1 undef, label %for.cond127.preheader, label %for.inc203 |
| 26 | |
| 27 | for.cond127.preheader: |
| 28 | br label %for.body129 |
| 29 | |
| 30 | for.cond127: |
| 31 | %cmp128 = icmp slt i32 %inc191, 2 |
| 32 | br i1 %cmp128, label %for.body129, label %for.end192 |
| 33 | |
| 34 | for.body129: |
| 35 | %uv.013 = phi i32 [ 0, %for.cond127.preheader ], [ %inc191, %for.cond127 ] |
| 36 | %idxprom130 = sext i32 %uv.013 to i64 |
| 37 | br i1 undef, label %for.cond135.preheader.lr.ph, label %for.end185 |
| 38 | |
| 39 | for.cond135.preheader.lr.ph: |
| 40 | br i1 undef, label %for.cond135.preheader.lr.ph.split.us, label %for.cond135.preheader.lr.ph.split_crit_edge |
| 41 | |
| 42 | for.cond135.preheader.lr.ph.split_crit_edge: |
| 43 | br label %for.cond135.preheader.lr.ph.split |
| 44 | |
| 45 | for.cond135.preheader.lr.ph.split.us: |
| 46 | br label %for.cond135.preheader.us |
| 47 | |
| 48 | for.cond135.preheader.us: |
| 49 | %block_y.09.us = phi i32 [ 0, %for.cond135.preheader.lr.ph.split.us ], [ %add184.us, %for.cond132.us ] |
| 50 | br i1 true, label %for.cond138.preheader.lr.ph.us, label %for.end178.us |
| 51 | |
| 52 | for.end178.us: |
| 53 | %add184.us = add nsw i32 %block_y.09.us, 4 |
| 54 | br i1 undef, label %for.end185split.us-lcssa.us, label %for.cond132.us |
| 55 | |
| 56 | for.end174.us: |
| 57 | br i1 undef, label %for.cond138.preheader.us, label %for.cond135.for.end178_crit_edge.us |
| 58 | |
| 59 | for.inc172.us: |
| 60 | br i1 undef, label %for.cond142.preheader.us, label %for.end174.us |
| 61 | |
| 62 | for.body145.us: |
| 63 | %arrayidx163.us = getelementptr inbounds %struct.Params* undef, i64 0, i32 0, i64 %idxprom130, i64 %idxprom146.us |
| 64 | br i1 undef, label %for.body145.us, label %for.inc172.us |
| 65 | |
| 66 | for.cond142.preheader.us: |
| 67 | %j.04.us = phi i32 [ %block_y.09.us, %for.cond138.preheader.us ], [ undef, %for.inc172.us ] |
| 68 | %idxprom146.us = sext i32 %j.04.us to i64 |
| 69 | br label %for.body145.us |
| 70 | |
| 71 | for.cond138.preheader.us: |
| 72 | br label %for.cond142.preheader.us |
| 73 | |
| 74 | for.cond132.us: |
| 75 | br i1 undef, label %for.cond135.preheader.us, label %for.cond132.for.end185_crit_edge.us-lcssa.us |
| 76 | |
| 77 | for.cond138.preheader.lr.ph.us: |
| 78 | br label %for.cond138.preheader.us |
| 79 | |
| 80 | for.cond135.for.end178_crit_edge.us: |
| 81 | br label %for.end178.us |
| 82 | |
| 83 | for.end185split.us-lcssa.us: |
| 84 | br label %for.end185split |
| 85 | |
| 86 | for.cond132.for.end185_crit_edge.us-lcssa.us: |
| 87 | br label %for.cond132.for.end185_crit_edge |
| 88 | |
| 89 | for.cond135.preheader.lr.ph.split: |
| 90 | br label %for.end185split |
| 91 | |
| 92 | for.end185split: |
| 93 | br label %for.end185 |
| 94 | |
| 95 | for.cond132.for.end185_crit_edge: |
| 96 | br label %for.end185 |
| 97 | |
| 98 | for.end185: |
| 99 | %inc191 = add nsw i32 %uv.013, 1 |
| 100 | br i1 false, label %for.end192, label %for.cond127 |
| 101 | |
| 102 | for.end192: |
| 103 | br label %for.inc203 |
| 104 | |
| 105 | for.inc203: |
| 106 | br label %for.end205 |
| 107 | |
| 108 | for.end205: |
| 109 | ret void |
| 110 | } |