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      1 ; RUN: opt -constmerge -S < %s | FileCheck %s
      2 ; Test which corresponding x and y are merged and that unnamed_addr
      3 ; is correctly set.
      4 
      5 declare void @zed(%struct.foobar*, %struct.foobar*)
      6 
      7 %struct.foobar = type { i32 }
      8 
      9 @test1.x = internal constant %struct.foobar { i32 1 }
     10 @test1.y = constant %struct.foobar { i32 1 }
     11 
     12 @test2.x = internal constant %struct.foobar { i32 2 }
     13 @test2.y = unnamed_addr constant %struct.foobar { i32 2 }
     14 
     15 @test3.x = internal unnamed_addr constant %struct.foobar { i32 3 }
     16 @test3.y = constant %struct.foobar { i32 3 }
     17 
     18 @test4.x = internal unnamed_addr constant %struct.foobar { i32 4 }
     19 @test4.y = unnamed_addr constant %struct.foobar { i32 4 }
     20 
     21 
     22 ; CHECK:      %struct.foobar = type { i32 }
     23 ; CHECK-NOT: @
     24 ; CHECK: @test1.x = internal constant %struct.foobar { i32 1 }
     25 ; CHECK-NEXT: @test1.y = constant %struct.foobar { i32 1 }
     26 ; CHECK-NEXT: @test2.y = constant %struct.foobar { i32 2 }
     27 ; CHECK-NEXT: @test3.y = constant %struct.foobar { i32 3 }
     28 ; CHECK-NEXT: @test4.y = unnamed_addr constant %struct.foobar { i32 4 }
     29 ; CHECK-NOT: @
     30 ; CHECK: declare void @zed(%struct.foobar*, %struct.foobar*)
     31 
     32 define i32 @main() {
     33 entry:
     34   call void @zed(%struct.foobar* @test1.x, %struct.foobar* @test1.y)
     35   call void @zed(%struct.foobar* @test2.x, %struct.foobar* @test2.y)
     36   call void @zed(%struct.foobar* @test3.x, %struct.foobar* @test3.y)
     37   call void @zed(%struct.foobar* @test4.x, %struct.foobar* @test4.y)
     38   ret i32 0
     39 }
     40 
     41