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42 lines
1.6 KiB
LLVM
42 lines
1.6 KiB
LLVM
; RUN: opt -S < %s -passes=constmerge | FileCheck %s
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; Test that in one run var3 is merged into var2 and var1 into var4.
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; Test that we merge @var5 and @var6 into one with the higher alignment
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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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declare void @helper([16 x i8]*)
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@var5 = internal constant [16 x i8] c"foo1bar2foo3bar\00", align 16
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@var6 = private unnamed_addr constant [16 x i8] c"foo1bar2foo3bar\00", align 1
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@var7 = internal constant [16 x i8] c"foo1bar2foo3bar\00"
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@var8 = private unnamed_addr constant [16 x i8] c"foo1bar2foo3bar\00"
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; CHECK-NEXT: @var7 = internal constant [16 x i8] c"foo1bar2foo3bar\00"
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; CHECK-NEXT: @var8 = private constant [16 x i8] c"foo1bar2foo3bar\00", align 16
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@var4a = alias %struct.foobar, %struct.foobar* @var4
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@llvm.used = appending global [1 x %struct.foobar*] [%struct.foobar* @var4a], section "llvm.metadata"
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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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call void @helper([16 x i8]* @var5)
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call void @helper([16 x i8]* @var6)
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call void @helper([16 x i8]* @var7)
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call void @helper([16 x i8]* @var8)
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ret i32 0
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}
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