| Andrew Trick | fd4ca0f | 2011-10-15 06:19:55 +0000 | [diff] [blame] | 1 | ; RUN: opt -loop-reduce -S < %s | FileCheck %s |
| 2 | ; |
| 3 | ; Test SCEVExpander reusing a phi->gep->phi IV when SCEV "wrongly" |
| 4 | ; reports the expression as an IntegerTy. |
| 5 | |
| 6 | target triple = "x86_64-apple-darwin" |
| 7 | |
| 8 | ; CHECK: @test |
| 9 | ; CHECK: phi |
| 10 | ; CHECK-NOT: phi |
| 11 | define void @test(i32 %rowStride) ssp align 2 { |
| 12 | entry: |
| 13 | %cond = select i1 undef, i32 %rowStride, i32 4 |
| 14 | br label %for.end |
| 15 | |
| 16 | for.end.critedge: ; preds = %for.end |
| 17 | br label %for.end |
| 18 | |
| 19 | for.end: ; preds = %for.end.critedge, %entry |
| 20 | br i1 undef, label %for.body83, label %for.end.critedge |
| 21 | |
| 22 | for.body83: ; preds = %for.body83, %for.end |
| 23 | %ptr.0157 = phi i8* [ %add.ptr96, %for.body83 ], [ null, %for.end ] |
| 24 | store i8 undef, i8* %ptr.0157, align 1 |
| 25 | %add.ptr96 = getelementptr inbounds i8* %ptr.0157, i32 %cond |
| 26 | br label %for.body83 |
| 27 | } |