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(rotate)' < %s | FileCheck %s
4 ; RUN: opt -S -passes='require<targetir>,require<assumptions>,loop-mssa(rotate)' -verify-memoryssa < %s | FileCheck %s
6 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"
7 target triple = "x86_64-apple-darwin10.0.0"
9 ; PR5319 - The "arrayidx" gep should be hoisted, not duplicated. We should
10 ; end up with one phi node.
11 define void @test1() nounwind ssp {
12 ; CHECK-LABEL: @test1(
14 %array = alloca [20 x i32], align 16
17 for.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
24 ; CHECK-NEXT: phi i32 [ 0
25 ; CHECK-NEXT: store i32 0
27 for.body: ; preds = %for.cond
28 store i32 0, i32* %arrayidx, align 16
29 %inc = add nsw i32 %i.0, 1
32 for.end: ; preds = %for.cond
33 %arrayidx.lcssa = phi i32* [ %arrayidx, %for.cond ]
34 call void @g(i32* %arrayidx.lcssa) nounwind
40 ; CHECK-LABEL: @test2(
41 define void @test2() nounwind ssp {
43 %array = alloca [20 x i32], align 16
46 for.cond: ; preds = %for.body, %entry
47 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
48 %cmp = icmp slt i32 %i.0, 100
50 ; CHECK-NOT: call void @f
51 call void @f() noduplicate
52 br i1 %cmp, label %for.body, label %for.end
54 for.body: ; preds = %for.cond
55 %inc = add nsw i32 %i.0, 1
59 for.end: ; preds = %for.cond
64 declare void @f() noduplicate