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41852873f7
This fixes the original testcase in PR8927. It also causes a clang binary built with a patched clang to increase in size by 0.21%. We can probably get some of the size back by writing a pass that detects that a global never has its pointer compared and adds unnamed_addr to it (maybe extend global opt). It is also possible that there are some other cases clang could add unnamed_addr to. I will investigate extending globalopt next. llvm-svn: 123584
41 lines
1.4 KiB
LLVM
41 lines
1.4 KiB
LLVM
; RUN: opt -constmerge %s -S -o - | FileCheck %s
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; Test which corresponding x and y are merged and that unnamed_addr
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; is correctly set.
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declare void @zed(%struct.foobar*, %struct.foobar*)
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%struct.foobar = type { i32 }
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@test1.x = internal constant %struct.foobar { i32 1 }
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@test1.y = constant %struct.foobar { i32 1 }
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@test2.x = internal constant %struct.foobar { i32 2 }
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@test2.y = unnamed_addr constant %struct.foobar { i32 2 }
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@test3.x = internal unnamed_addr constant %struct.foobar { i32 3 }
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@test3.y = constant %struct.foobar { i32 3 }
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@test4.x = internal unnamed_addr constant %struct.foobar { i32 4 }
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@test4.y = unnamed_addr constant %struct.foobar { i32 4 }
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; CHECK: %struct.foobar = type { i32 }
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; CHECK-NOT: @
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; CHECK: @test1.x = internal constant %struct.foobar { i32 1 }
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; CHECK-NEXT: @test1.y = constant %struct.foobar { i32 1 }
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; CHECK-NEXT: @test2.y = constant %struct.foobar { i32 2 }
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; CHECK-NEXT: @test3.y = constant %struct.foobar { i32 3 }
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; CHECK-NEXT: @test4.y = unnamed_addr constant %struct.foobar { i32 4 }
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; CHECK-NOT: @
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; CHECK: declare void @zed(%struct.foobar*, %struct.foobar*)
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define i32 @main() {
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entry:
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call void @zed(%struct.foobar* @test1.x, %struct.foobar* @test1.y)
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call void @zed(%struct.foobar* @test2.x, %struct.foobar* @test2.y)
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call void @zed(%struct.foobar* @test3.x, %struct.foobar* @test3.y)
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call void @zed(%struct.foobar* @test4.x, %struct.foobar* @test4.y)
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ret i32 0
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}
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