1; RUN: opt -S -loop-rotate < %s | FileCheck %s 2; RUN: opt -S -passes='require<targetir>,require<assumptions>,loop(rotate)' < %s | FileCheck %s 3 4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 5target triple = "x86_64-apple-darwin10.0.0" 6 7; PR5319 - The "arrayidx" gep should be hoisted, not duplicated. We should 8; end up with one phi node. 9define void @test1() nounwind ssp { 10; CHECK-LABEL: @test1( 11entry: 12 %array = alloca [20 x i32], align 16 13 br label %for.cond 14 15for.cond: ; preds = %for.body, %entry 16 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 17 %cmp = icmp slt i32 %i.0, 100 18 %arrayidx = getelementptr inbounds [20 x i32], [20 x i32]* %array, i64 0, i64 0 19 br i1 %cmp, label %for.body, label %for.end 20 21; CHECK: for.body: 22; CHECK-NEXT: phi i32 [ 0 23; CHECK-NEXT: store i32 0 24 25for.body: ; preds = %for.cond 26 store i32 0, i32* %arrayidx, align 16 27 %inc = add nsw i32 %i.0, 1 28 br label %for.cond 29 30for.end: ; preds = %for.cond 31 %arrayidx.lcssa = phi i32* [ %arrayidx, %for.cond ] 32 call void @g(i32* %arrayidx.lcssa) nounwind 33 ret void 34} 35 36declare void @g(i32*) 37 38; CHECK-LABEL: @test2( 39define void @test2() nounwind ssp { 40entry: 41 %array = alloca [20 x i32], align 16 42 br label %for.cond 43 44for.cond: ; preds = %for.body, %entry 45 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 46 %cmp = icmp slt i32 %i.0, 100 47; CHECK: call void @f 48; CHECK-NOT: call void @f 49 call void @f() noduplicate 50 br i1 %cmp, label %for.body, label %for.end 51 52for.body: ; preds = %for.cond 53 %inc = add nsw i32 %i.0, 1 54 call void @h() 55 br label %for.cond 56 57for.end: ; preds = %for.cond 58 ret void 59; CHECK: } 60} 61 62declare void @f() noduplicate 63declare void @h() 64