1 ; Test to make sure that stores in a diamond get merged with a non barrier load after the store instruction 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" 5 6 %struct.node = type { i32, %struct.node*, %struct.node*, %struct.node*, i32, i32, i32, i32 } 7 8 ; Function Attrs: nounwind uwtable 9 define void @sink_store(%struct.node* nocapture %r, i32 %index) { 10 entry: 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 18 19 ; CHECK: if.then 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 25 %p2 = getelementptr inbounds %struct.node, %struct.node* %node.017, i32 5, i32 6 26 ; CHECK: load i32, i32* 27 %not_barrier = load i32 , i32 * %p2, align 4 28 br label %if.end 29 30 ; CHECK: if.else 31 if.else: ; preds = %entry 32 %2 = load i32, i32* %index.addr, align 4 33 %add = add nsw i32 %2, 1 34 %p3 = getelementptr inbounds %struct.node, %struct.node* %node.017, i32 0, i32 6 35 ; CHECK-NOT: store i32 36 store i32 %add, i32* %p3, align 4 37 br label %if.end 38 39 ; CHECK: if.end 40 if.end: ; preds = %if.else, %if.then 41 ; CHECK: store 42 ret void 43 } 44
