llvm-mirror/comdat5.ll at c4f49717659c3be964631d0e73d418ba642445aa - llvm-mirror - Git.je (Gitea)

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Rafael Espindola 20dc6c7571 Change the .ll syntax for comdats and add a syntactic sugar.

In order to make comdats always explicit in the IR, we decided to make
the syntax a bit more compact for the case of a GlobalObject in a
comdat with the same name.

Just dropping the $name causes problems for

@foo = globabl i32 0, comdat
$bar = comdat ...

and

declare void @foo() comdat
$bar = comdat ...

So the syntax is changed to

@g1 = globabl i32 0, comdat($c1)
@g2 = globabl i32 0, comdat

and

declare void @foo() comdat($c1)
declare void @foo() comdat

llvm-svn: 225302

2015-01-06 22:55:16 +00:00

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 ; RUN: not llvm-link %s %p/Inputs/comdat4.ll -S -o - 2>&1 | FileCheck %s
 target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
 target triple = "i686-pc-windows-msvc"
 $foo = comdat samesize
 @foo = global i32 42, comdat($foo)
 ; CHECK: Linking COMDATs named 'foo': SameSize violated!