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