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1; Test to make sure that a function call that needs to be a barrier to sinking stores is indeed a barrier.
2; Stores sunks into the footer.
3; RUN: opt -basicaa -memdep -mldst-motion -S < %s | FileCheck %s
4target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
5
6%struct.node = type { i32, %struct.node*, %struct.node*, %struct.node*, i32, i32, i32, i32 }
7
8declare i32 @foo(i32 %x)
9
10; Function Attrs: nounwind uwtable
11define void @sink_store(%struct.node* nocapture %r, i32 %index) {
12entry:
13  %node.0.in16 = getelementptr inbounds %struct.node, %struct.node* %r, i64 0, i32 2
14  %node.017 = load %struct.node*, %struct.node** %node.0.in16, align 8
15  %index.addr = alloca i32, align 4
16  store i32 %index, i32* %index.addr, align 4
17  %0 = load i32, i32* %index.addr, align 4
18  %cmp = icmp slt i32 %0, 0
19  br i1 %cmp, label %if.then, label %if.else
20
21; CHECK: if.then
22if.then:                                          ; preds = %entry
23  %1 = load i32, i32* %index.addr, align 4
24  %p1 = getelementptr inbounds %struct.node, %struct.node* %node.017, i32 0, i32 6
25  ; CHECK: store i32
26  store i32 %1, i32* %p1, align 4
27  br label %if.end
28
29; CHECK: if.else
30if.else:                                          ; preds = %entry
31  %2 = load i32, i32* %index.addr, align 4
32  %add = add nsw i32 %2, 1
33  %p3 = getelementptr inbounds %struct.node, %struct.node* %node.017, i32 0, i32 6
34  ; CHECK: store i32
35  store i32 %add, i32* %p3, align 4
36  call i32 @foo(i32 5)				  ;barrier
37  br label %if.end
38
39; CHECK: if.end
40if.end:                                           ; preds = %if.else, %if.then
41; CHECK-NOT: store
42  ret void
43}
44