Home | History | Annotate | Download | only in LoopStrengthReduce
      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 }
     28