; RUN: opt < %s -loop-reduce -S | FileCheck %s @d = common global i32 0, align 4 define void @fn2(i32 %x) nounwind uwtable { entry: br label %for.cond for.cond: %g.0 = phi i32 [ 0, %entry ], [ %dec, %for.cond ] %tobool = icmp eq i32 %x, 0 %dec = add nsw i32 %g.0, -1 br i1 %tobool, label %for.cond, label %for.end for.end: ; CHECK: %tmp1 = load i32* @d, align 4 ; CHECK-NEXT: %tmp2 = load i32* @d, align 4 ; CHECK-NEXT: %0 = sub i32 %tmp1, %tmp2 %tmp1 = load i32* @d, align 4 %add = add nsw i32 %tmp1, %g.0 %tmp2 = load i32* @d, align 4 %tobool26 = icmp eq i32 %x, 0 br i1 %tobool26, label %for.end5, label %for.body.lr.ph for.body.lr.ph: %tobool3 = icmp ne i32 %tmp2, %add br label %for.end5 for.end5: ret void }