llvm/test/Linker/comdat.ll
Rafael Espindola f907a26bc2 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225302 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-06 22:55:16 +00:00

33 lines
795 B
LLVM

; RUN: llvm-link %s %p/Inputs/comdat.ll -S -o - | FileCheck %s
target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
target triple = "i686-pc-windows-msvc"
$foo = comdat largest
@foo = global i32 42, comdat($foo)
define i32 @bar() comdat($foo) {
ret i32 42
}
$qux = comdat largest
@qux = global i64 12, comdat($qux)
define i32 @baz() comdat($qux) {
ret i32 12
}
$any = comdat any
@any = global i64 6, comdat($any)
; CHECK: $qux = comdat largest
; CHECK: $foo = comdat largest
; CHECK: $any = comdat any
; CHECK: @qux = global i64 12, comdat{{$}}
; CHECK: @any = global i64 6, comdat{{$}}
; CHECK: @foo = global i64 43, comdat{{$}}
; CHECK-NOT: @in_unselected_group = global i32 13, comdat $qux
; CHECK: define i32 @baz() comdat($qux)
; CHECK: define i32 @bar() comdat($foo)