| Andrew Trick | f62744b | 2012-03-26 21:45:37 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-reduce -S |
| 2 | ; PR11950: isHighCostExpansion crashes on ConstExpr |
| 3 | ; |
| 4 | ; The crash happened during IVChain analysis (CollectChains). We don't |
| 5 | ; really care how LSR decides to transform this loop, so we don't |
| 6 | ; check it. As long as the analysis doesn't crash we're ok. |
| 7 | target datalayout = "e-p:64:64:64-n32:64" |
| 8 | |
| 9 | %struct.this_structure_s.0.5 = type { [6144 x [8 x i32]], [6144 x [8 x i32]], [6147 x [4 x i32]], [8 x i32], [2 x i8*], [2 x i8*], [6144 x i8], [6144 x i32], [6144 x i32], [4 x [4 x i8]] } |
| 10 | |
| 11 | define internal fastcc void @someFunction(%struct.this_structure_s.0.5* nocapture %scratch, i32 %stage, i32 %cbSize) nounwind { |
| 12 | entry: |
| 13 | %0 = getelementptr inbounds %struct.this_structure_s.0.5* %scratch, i32 0, i32 4, i32 %stage |
| 14 | %1 = load i8** %0, align 4 |
| 15 | %2 = getelementptr inbounds %struct.this_structure_s.0.5* %scratch, i32 0, i32 5, i32 %stage |
| 16 | %3 = load i8** %2, align 4 |
| 17 | %4 = getelementptr inbounds %struct.this_structure_s.0.5* %scratch, i32 0, i32 2, i32 0, i32 0 |
| 18 | %tmp11 = shl i32 %stage, 1 |
| 19 | %tmp1325 = or i32 %tmp11, 1 |
| 20 | br label %__label_D_1608 |
| 21 | |
| 22 | __label_D_1608: ; preds = %__label_D_1608, %entry |
| 23 | %i.12 = phi i32 [ 0, %entry ], [ %10, %__label_D_1608 ] |
| 24 | %tmp = shl i32 %i.12, 2 |
| 25 | %lvar_g.13 = getelementptr i32* %4, i32 %tmp |
| 26 | %tmp626 = or i32 %tmp, 1 |
| 27 | %scevgep = getelementptr i32* %4, i32 %tmp626 |
| 28 | %tmp727 = or i32 %tmp, 2 |
| 29 | %scevgep8 = getelementptr i32* %4, i32 %tmp727 |
| 30 | %tmp928 = or i32 %tmp, 3 |
| 31 | %scevgep10 = getelementptr i32* %4, i32 %tmp928 |
| 32 | %scevgep12 = getelementptr %struct.this_structure_s.0.5* %scratch, i32 0, i32 9, i32 %tmp11, i32 %i.12 |
| 33 | %scevgep14 = getelementptr %struct.this_structure_s.0.5* %scratch, i32 0, i32 9, i32 %tmp1325, i32 %i.12 |
| 34 | %5 = load i8* %scevgep12, align 1 |
| 35 | %6 = sext i8 %5 to i32 |
| 36 | %7 = load i8* %scevgep14, align 1 |
| 37 | %8 = sext i8 %7 to i32 |
| 38 | store i32 0, i32* %lvar_g.13, align 4 |
| 39 | store i32 %8, i32* %scevgep, align 4 |
| 40 | store i32 %6, i32* %scevgep8, align 4 |
| 41 | %9 = add nsw i32 %8, %6 |
| 42 | store i32 %9, i32* %scevgep10, align 4 |
| 43 | %10 = add nsw i32 %i.12, 1 |
| 44 | %exitcond = icmp eq i32 %10, 3 |
| 45 | br i1 %exitcond, label %return, label %__label_D_1608 |
| 46 | |
| 47 | return: ; preds = %__label_D_1608 |
| 48 | ret void |
| 49 | } |