| ; RUN: opt < %s -basicaa -licm -S | FileCheck %s |
| ; RUN: opt -aa-pipeline=type-based-aa,basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,require<opt-remark-emit>,loop(licm)' -S %s | FileCheck %s |
| |
| ; Make sure we don't hoist a conditionally-executed store out of the loop; |
| ; it would violate the concurrency memory model |
| |
| @g = common global i32 0, align 4 |
| |
| define void @bar(i32 %n, i32 %b) nounwind uwtable ssp { |
| entry: |
| br label %for.cond |
| |
| for.cond: ; preds = %for.inc, %entry |
| %i.0 = phi i32 [ 0, %entry ], [ %inc5, %for.inc ] |
| %cmp = icmp slt i32 %i.0, %n |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.body: ; preds = %for.cond |
| %tobool = icmp eq i32 %b, 0 |
| br i1 %tobool, label %for.inc, label %if.then |
| |
| if.then: ; preds = %for.body |
| %tmp3 = load i32, i32* @g, align 4 |
| %inc = add nsw i32 %tmp3, 1 |
| store i32 %inc, i32* @g, align 4 |
| br label %for.inc |
| |
| ; CHECK: load i32, i32* |
| ; CHECK-NEXT: add |
| ; CHECK-NEXT: store i32 |
| |
| for.inc: ; preds = %for.body, %if.then |
| %inc5 = add nsw i32 %i.0, 1 |
| br label %for.cond |
| |
| for.end: ; preds = %for.cond |
| ret void |
| } |