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d6e5cbc842
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123584 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
827 B
LLVM
27 lines
827 B
LLVM
; RUN: opt -constmerge %s -S -o - | FileCheck %s
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; Test that in one run var3 is merged into var2 and var1 into var4.
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declare void @zed(%struct.foobar*, %struct.foobar*)
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%struct.foobar = type { i32 }
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@var1 = internal constant %struct.foobar { i32 2 }
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@var2 = unnamed_addr constant %struct.foobar { i32 2 }
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@var3 = internal constant %struct.foobar { i32 2 }
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@var4 = unnamed_addr constant %struct.foobar { i32 2 }
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; CHECK: %struct.foobar = type { i32 }
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; CHECK-NOT: @
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; CHECK: @var2 = constant %struct.foobar { i32 2 }
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; CHECK-NEXT: @var4 = constant %struct.foobar { i32 2 }
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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* @var1, %struct.foobar* @var2)
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call void @zed(%struct.foobar* @var3, %struct.foobar* @var4)
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ret i32 0
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}
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