llvm-mirror/test/Transforms/GlobalDCE/pr20981.ll

; RUN: opt < %s -globaldce -S | FileCheck %s

$c1 = comdat any
; CHECK: $c1 = comdat any

@a1 = linkonce_odr alias void ()* @f1
; CHECK: @a1 = linkonce_odr alias void ()* @f1

define linkonce_odr void @f1() comdat($c1) {
  ret void
}
; CHECK: define linkonce_odr void @f1() comdat($c1)

define void @g() {
  call void @f1()
  ret void
}
GlobalDCE: Don't drop any COMDAT members If we require a single member of a comdat, require all of the other members as well. This fixes PR20981. llvm-svn: 219191 2014-10-07 09:07:19 +02:00			`; RUN: opt < %s -globaldce -S \| FileCheck %s`

			`$c1 = comdat any`
			`; CHECK: $c1 = comdat any`

			`@a1 = linkonce_odr alias void ()* @f1`
			`; CHECK: @a1 = linkonce_odr alias void ()* @f1`

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($c1) declare void @foo() comdat llvm-svn: 225302 2015-01-06 23:55:16 +01:00			`define linkonce_odr void @f1() comdat($c1) {`
GlobalDCE: Don't drop any COMDAT members If we require a single member of a comdat, require all of the other members as well. This fixes PR20981. llvm-svn: 219191 2014-10-07 09:07:19 +02:00			`ret void`
			`}`
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($c1) declare void @foo() comdat llvm-svn: 225302 2015-01-06 23:55:16 +01:00			`; CHECK: define linkonce_odr void @f1() comdat($c1)`
GlobalDCE: Don't drop any COMDAT members If we require a single member of a comdat, require all of the other members as well. This fixes PR20981. llvm-svn: 219191 2014-10-07 09:07:19 +02:00
			`define void @g() {`
			`call void @f1()`
			`ret void`
			`}`