1*cee313d2SEric Christopher; RUN: opt -basicaa -loop-versioning -S < %s | FileCheck %s 2*cee313d2SEric Christopher 3*cee313d2SEric Christophertarget datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 4*cee313d2SEric Christopher 5*cee313d2SEric Christopher; Version this loop with overlap checks between a, c and b, c. 6*cee313d2SEric Christopher 7*cee313d2SEric Christopherdefine void @f(i32* %a, i32* %b, i32* %c) { 8*cee313d2SEric Christopherentry: 9*cee313d2SEric Christopher br label %for.body 10*cee313d2SEric Christopher 11*cee313d2SEric Christopher; CHECK: for.body.lver.check: 12*cee313d2SEric Christopher; CHECK: icmp 13*cee313d2SEric Christopher; CHECK: icmp 14*cee313d2SEric Christopher; CHECK: icmp 15*cee313d2SEric Christopher; CHECK: icmp 16*cee313d2SEric Christopher; CHECK-NOT: icmp 17*cee313d2SEric Christopher; CHECK: br i1 %memcheck.conflict, label %for.body.ph.lver.orig, label %for.body.ph 18*cee313d2SEric Christopher 19*cee313d2SEric Christopher; CHECK: for.body.ph.lver.orig: 20*cee313d2SEric Christopher; CHECK: for.body.lver.orig: 21*cee313d2SEric Christopher; CHECK: br i1 %exitcond.lver.orig, label %for.end, label %for.body.lver.orig 22*cee313d2SEric Christopher; CHECK: for.body.ph: 23*cee313d2SEric Christopher; CHECK: for.body: 24*cee313d2SEric Christopher; CHECK: br i1 %exitcond, label %for.end, label %for.body 25*cee313d2SEric Christopher; CHECK: for.end: 26*cee313d2SEric Christopher 27*cee313d2SEric Christopherfor.body: ; preds = %for.body, %entry 28*cee313d2SEric Christopher %ind = phi i64 [ 0, %entry ], [ %add, %for.body ] 29*cee313d2SEric Christopher 30*cee313d2SEric Christopher %arrayidxA = getelementptr inbounds i32, i32* %a, i64 %ind 31*cee313d2SEric Christopher %loadA = load i32, i32* %arrayidxA, align 4 32*cee313d2SEric Christopher 33*cee313d2SEric Christopher %arrayidxB = getelementptr inbounds i32, i32* %b, i64 %ind 34*cee313d2SEric Christopher %loadB = load i32, i32* %arrayidxB, align 4 35*cee313d2SEric Christopher 36*cee313d2SEric Christopher %mulC = mul i32 %loadA, %loadB 37*cee313d2SEric Christopher 38*cee313d2SEric Christopher %arrayidxC = getelementptr inbounds i32, i32* %c, i64 %ind 39*cee313d2SEric Christopher store i32 %mulC, i32* %arrayidxC, align 4 40*cee313d2SEric Christopher 41*cee313d2SEric Christopher %add = add nuw nsw i64 %ind, 1 42*cee313d2SEric Christopher %exitcond = icmp eq i64 %add, 20 43*cee313d2SEric Christopher br i1 %exitcond, label %for.end, label %for.body 44*cee313d2SEric Christopher 45*cee313d2SEric Christopherfor.end: ; preds = %for.body 46*cee313d2SEric Christopher ret void 47*cee313d2SEric Christopher} 48