; RUN: opt < %s -loop-unroll -S | FileCheck %s ; RUN: opt < %s -passes='require,loop-unroll' -S | FileCheck %s ; This should not unroll since the address of the loop header is taken. ; CHECK-LABEL: @test1( ; CHECK: store i8* blockaddress(@test1, %l1), i8** %P ; CHECK: l1: ; CHECK-NEXT: phi i32 ; rdar://8287027 define i32 @test1(i8** %P) nounwind ssp { entry: store i8* blockaddress(@test1, %l1), i8** %P br label %l1 l1: ; preds = %l1, %entry %x.0 = phi i32 [ 0, %entry ], [ %inc, %l1 ] %inc = add nsw i32 %x.0, 1 %exitcond = icmp eq i32 %inc, 3 br i1 %exitcond, label %l2, label %l1 l2: ; preds = %l1 ret i32 0 } ; This should not unroll since the call is 'noduplicate'. ; CHECK-LABEL: @test2( define i32 @test2(i8** %P) nounwind ssp { entry: br label %l1 l1: ; preds = %l1, %entry %x.0 = phi i32 [ 0, %entry ], [ %inc, %l1 ] ; CHECK: call void @f() ; CHECK-NOT: call void @f() call void @f() noduplicate %inc = add nsw i32 %x.0, 1 %exitcond = icmp eq i32 %inc, 3 br i1 %exitcond, label %l2, label %l1 l2: ; preds = %l1 ret i32 0 ; CHECK: } } declare void @f()