John Bauman | 66b8ab2 | 2014-05-06 15:57:45 -0400 | [diff] [blame] | 1 | ; RUN: llc < %s -march=x86 -relocation-model=pic -disable-fp-elim -stats -regalloc=linearscan |& grep {Number of loads added} | grep 1 |
| 2 | ; PR3495 |
| 3 | ; |
| 4 | ; This test may not be testing what it was supposed to test. |
| 5 | ; It used to have two spills and four reloads, but not it only has one spill and one reload. |
| 6 | |
| 7 | target datalayout = "e-p:32:32:32" |
| 8 | target triple = "i386-apple-darwin9.6" |
| 9 | %struct.constraintVCGType = type { i32, i32, i32, i32 } |
| 10 | %struct.nodeVCGType = type { %struct.constraintVCGType*, i32, i32, i32, %struct.constraintVCGType*, i32, i32, i32 } |
| 11 | |
| 12 | define fastcc void @SCC_DFSBelowVCG(%struct.nodeVCGType* %VCG, i32 %net, i32 %label) nounwind { |
| 13 | entry: |
| 14 | %0 = getelementptr %struct.nodeVCGType* %VCG, i32 %net, i32 5 ; <i32*> [#uses=2] |
| 15 | %1 = load i32* %0, align 4 ; <i32> [#uses=1] |
| 16 | %2 = icmp eq i32 %1, 0 ; <i1> [#uses=1] |
| 17 | br i1 %2, label %bb5, label %bb.nph3 |
| 18 | |
| 19 | bb.nph3: ; preds = %entry |
| 20 | %3 = getelementptr %struct.nodeVCGType* %VCG, i32 %net, i32 4 ; <%struct.constraintVCGType**> [#uses=1] |
| 21 | br label %bb |
| 22 | |
| 23 | bb: ; preds = %bb3, %bb.nph3 |
| 24 | %s.02 = phi i32 [ 0, %bb.nph3 ], [ %12, %bb3 ] ; <i32> [#uses=2] |
| 25 | %4 = load %struct.constraintVCGType** %3, align 4 ; <%struct.constraintVCGType*> [#uses=1] |
| 26 | %5 = icmp eq i32 0, 0 ; <i1> [#uses=1] |
| 27 | br i1 %5, label %bb1, label %bb3 |
| 28 | |
| 29 | bb1: ; preds = %bb |
| 30 | %6 = getelementptr %struct.constraintVCGType* %4, i32 %s.02, i32 0 ; <i32*> [#uses=1] |
| 31 | %7 = load i32* %6, align 4 ; <i32> [#uses=2] |
| 32 | %8 = getelementptr %struct.nodeVCGType* %VCG, i32 %7, i32 7 ; <i32*> [#uses=1] |
| 33 | %9 = load i32* %8, align 4 ; <i32> [#uses=1] |
| 34 | %10 = icmp eq i32 %9, 0 ; <i1> [#uses=1] |
| 35 | br i1 %10, label %bb2, label %bb3 |
| 36 | |
| 37 | bb2: ; preds = %bb1 |
| 38 | %11 = getelementptr %struct.nodeVCGType* %VCG, i32 %7, i32 4 ; <%struct.constraintVCGType**> [#uses=0] |
| 39 | br label %bb.i |
| 40 | |
| 41 | bb.i: ; preds = %bb.i, %bb2 |
| 42 | br label %bb.i |
| 43 | |
| 44 | bb3: ; preds = %bb1, %bb |
| 45 | %12 = add i32 %s.02, 1 ; <i32> [#uses=2] |
| 46 | %13 = load i32* %0, align 4 ; <i32> [#uses=1] |
| 47 | %14 = icmp ugt i32 %13, %12 ; <i1> [#uses=1] |
| 48 | br i1 %14, label %bb, label %bb5 |
| 49 | |
| 50 | bb5: ; preds = %bb3, %entry |
| 51 | %15 = getelementptr %struct.nodeVCGType* %VCG, i32 %net, i32 6 ; <i32*> [#uses=1] |
| 52 | store i32 %label, i32* %15, align 4 |
| 53 | ret void |
| 54 | } |