1 ; RUN: opt < %s -basicaa -licm -S | FileCheck %s 2 ; RUN: opt -aa-pipeline=type-based-aa,basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S %s | FileCheck %s 3 4 ; Make sure we don't hoist a conditionally-executed store out of the loop; 5 ; it would violate the concurrency memory model 6 7 @g = common global i32 0, align 4 8 9 define void @bar(i32 %n, i32 %b) nounwind uwtable ssp { 10 entry: 11 br label %for.cond 12 13 for.cond: ; preds = %for.inc, %entry 14 %i.0 = phi i32 [ 0, %entry ], [ %inc5, %for.inc ] 15 %cmp = icmp slt i32 %i.0, %n 16 br i1 %cmp, label %for.body, label %for.end 17 18 for.body: ; preds = %for.cond 19 %tobool = icmp eq i32 %b, 0 20 br i1 %tobool, label %for.inc, label %if.then 21 22 if.then: ; preds = %for.body 23 %tmp3 = load i32, i32* @g, align 4 24 %inc = add nsw i32 %tmp3, 1 25 store i32 %inc, i32* @g, align 4 26 br label %for.inc 27 28 ; CHECK: load i32, i32* 29 ; CHECK-NEXT: add 30 ; CHECK-NEXT: store i32 31 32 for.inc: ; preds = %for.body, %if.then 33 %inc5 = add nsw i32 %i.0, 1 34 br label %for.cond 35 36 for.end: ; preds = %for.cond 37 ret void 38 } 39
