1; RUN: opt -S -loop-rotate < %s | FileCheck %s 2; RUN: opt -S -loop-rotate -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s 3; RUN: opt -S -passes='require<targetir>,require<assumptions>,loop(loop-rotate)' < %s | FileCheck %s 4; RUN: opt -S -passes='require<targetir>,require<assumptions>,loop-mssa(loop-rotate)' -verify-memoryssa < %s | FileCheck %s 5 6target 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" 7target triple = "x86_64-apple-darwin10.0.0" 8 9; PR5319 - The "arrayidx" gep should be hoisted, not duplicated. We should 10; end up with one phi node. 11define void @test1() nounwind ssp { 12; CHECK-LABEL: @test1( 13entry: 14 %array = alloca [20 x i32], align 16 15 br label %for.cond 16 17for.cond: ; preds = %for.body, %entry 18 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 19 %cmp = icmp slt i32 %i.0, 100 20 %arrayidx = getelementptr inbounds [20 x i32], [20 x i32]* %array, i64 0, i64 0 21 br i1 %cmp, label %for.body, label %for.end 22 23; CHECK: for.body: 24; CHECK-NEXT: phi i32 [ 0 25; CHECK-NEXT: store i32 0 26 27for.body: ; preds = %for.cond 28 store i32 0, i32* %arrayidx, align 16 29 %inc = add nsw i32 %i.0, 1 30 br label %for.cond 31 32for.end: ; preds = %for.cond 33 %arrayidx.lcssa = phi i32* [ %arrayidx, %for.cond ] 34 call void @g(i32* %arrayidx.lcssa) nounwind 35 ret void 36} 37 38declare void @g(i32*) 39 40; CHECK-LABEL: @test2( 41define void @test2() nounwind ssp { 42entry: 43 %array = alloca [20 x i32], align 16 44 br label %for.cond 45 46for.cond: ; preds = %for.body, %entry 47 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 48 %cmp = icmp slt i32 %i.0, 100 49; CHECK: call void @f 50; CHECK-NOT: call void @f 51 call void @f() noduplicate 52 br i1 %cmp, label %for.body, label %for.end 53 54for.body: ; preds = %for.cond 55 %inc = add nsw i32 %i.0, 1 56 call void @h() 57 br label %for.cond 58 59for.end: ; preds = %for.cond 60 ret void 61; CHECK: } 62} 63 64declare void @f() noduplicate 65declare void @h() 66