1 ; Test to make sure that stores in a diamond get merged with a non barrier store after the store instruction to be sunk
2 ; Stores sunks into the footer.
3 ; RUN: opt -basicaa -memdep -mldst-motion -S < %s | FileCheck %s
4 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
6 %struct.node = type { i32, %struct.node*, %struct.node*, %struct.node*, i32, i32, i32, i32 }
8 ; Function Attrs: nounwind uwtable
9 define void @sink_store(%struct.node* nocapture %r, i32 %index) {
11 %node.0.in16 = getelementptr inbounds %struct.node, %struct.node* %r, i64 0, i32 2
12 %node.017 = load %struct.node*, %struct.node** %node.0.in16, align 8
13 %index.addr = alloca i32, align 4
14 store i32 %index, i32* %index.addr, align 4
15 %0 = load i32, i32* %index.addr, align 4
16 %cmp = icmp slt i32 %0, 0
17 br i1 %cmp, label %if.then, label %if.else
20 if.then: ; preds = %entry
21 %1 = load i32, i32* %index.addr, align 4
22 %p1 = getelementptr inbounds %struct.node, %struct.node* %node.017, i32 0, i32 6
23 ; CHECK-NOT: store i32
24 store i32 %1, i32* %p1, align 4
28 if.else: ; preds = %entry
29 %2 = load i32, i32* %index.addr, align 4
30 %add = add nsw i32 %2, 1
31 %p2 = getelementptr inbounds %struct.node, %struct.node* %node.017, i32 0, i32 6
32 store i32 %add, i32* %p2, align 4
33 %p3 = getelementptr inbounds %struct.node, %struct.node* %node.017, i32 5, i32 6
35 store i32 %add, i32* %p3, align 4 ; This is not a barrier
39 if.end: ; preds = %if.else, %if.then