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 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 8; Function Attrs: nounwind uwtable 9define void @sink_store(%struct.node* nocapture %r, i32 %index) { 10entry: 11 %node.0.in16 = getelementptr inbounds %struct.node* %r, i64 0, i32 2 12 %node.017 = load %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* %index.addr, align 4 16 %cmp = icmp slt i32 %0, 0 17 br i1 %cmp, label %if.then, label %if.else 18 19; CHECK: if.then 20if.then: ; preds = %entry 21 %1 = load i32* %index.addr, align 4 22 %p1 = getelementptr inbounds %struct.node* %node.017, i32 0, i32 6 23 ; CHECK-NOT: store i32 24 store i32 %1, i32* %p1, align 4 25 br label %if.end 26 27; CHECK: if.else 28if.else: ; preds = %entry 29 %2 = load i32* %index.addr, align 4 30 %add = add nsw i32 %2, 1 31 %p2 = getelementptr inbounds %struct.node* %node.017, i32 0, i32 6 32 store i32 %add, i32* %p2, align 4 33 %p3 = getelementptr inbounds %struct.node* %node.017, i32 5, i32 6 34 ; CHECK: store i32 35 store i32 %add, i32* %p3, align 4 ; This is not a barrier 36 br label %if.end 37 38; CHECK: if.end 39if.end: ; preds = %if.else, %if.then 40; CHECK: store 41 ret void 42} 43