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      1 ; RUN: llc %s -o -
      2 
      3 ;; Reference to a label that gets deleted.
      4 define i8* @test1() nounwind {
      5 entry:
      6 	ret i8* blockaddress(@test1b, %test_label)
      7 }
      8 
      9 define i32 @test1b() nounwind {
     10 entry:
     11 	ret i32 -1
     12 test_label:
     13 	br label %ret
     14 ret:
     15 	ret i32 -1
     16 }
     17 
     18 
     19 ;; Issues with referring to a label that gets RAUW'd later.
     20 define i32 @test2a() nounwind {
     21 entry:
     22         %target = bitcast i8* blockaddress(@test2b, %test_label) to i8*
     23 
     24         call i32 @test2b(i8* %target)
     25 
     26         ret i32 0
     27 }
     28 
     29 define i32 @test2b(i8* %target) nounwind {
     30 entry:
     31         indirectbr i8* %target, [label %test_label]
     32 
     33 test_label:
     34 ; assume some code here...
     35         br label %ret
     36 
     37 ret:
     38         ret i32 -1
     39 }
     40 
     41 ; Issues with a BB that gets RAUW'd to another one after references are
     42 ; generated.
     43 define void @test3(i8** %P, i8** %Q) nounwind {
     44 entry:
     45   store i8* blockaddress(@test3b, %test_label), i8** %P
     46   store i8* blockaddress(@test3b, %ret), i8** %Q
     47   ret void
     48 }
     49 
     50 define i32 @test3b() nounwind {
     51 entry:
     52 	br label %test_label
     53 test_label:
     54 	br label %ret
     55 ret:
     56 	ret i32 -1
     57 }
     58 
     59 
     60 ; PR6673
     61 
     62 define i64 @test4a() {
     63 	%target = bitcast i8* blockaddress(@test4b, %usermain) to i8*
     64 	%ret = call i64 @test4b(i8* %target)
     65 
     66 	ret i64 %ret
     67 }
     68 
     69 define i64 @test4b(i8* %Code) {
     70 entry:
     71 	indirectbr i8* %Code, [label %usermain]
     72 usermain:
     73 	br label %label_line_0
     74 
     75 label_line_0:
     76 	br label %label_line_1
     77 
     78 label_line_1:
     79 	%target = ptrtoint i8* blockaddress(@test4b, %label_line_0) to i64
     80 	ret i64 %target
     81 }
     82