1 ; RUN: opt -S -loop-rotate < %s | FileCheck %s 2 ; RUN: opt -S -passes='require<targetir>,require<assumptions>,loop(rotate)' < %s | FileCheck %s 3 4 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" 5 target 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. 9 define void @test1() nounwind ssp { 10 ; CHECK-LABEL: @test1( 11 entry: 12 %array = alloca [20 x i32], align 16 13 br label %for.cond 14 15 for.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 25 for.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 30 for.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 36 declare void @g(i32*) 37 38 ; CHECK-LABEL: @test2( 39 define void @test2() nounwind ssp { 40 entry: 41 %array = alloca [20 x i32], align 16 42 br label %for.cond 43 44 for.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 52 for.body: ; preds = %for.cond 53 %inc = add nsw i32 %i.0, 1 54 call void @h() 55 br label %for.cond 56 57 for.end: ; preds = %for.cond 58 ret void 59 ; CHECK: } 60 } 61 62 declare void @f() noduplicate 63 declare void @h() 64
