llvm-project/llvm/test/Transforms/GlobalOpt/2009-03-06-Anonymous.ll

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

global i32 0
; CHECK: @0 = internal global i32 0
define i32* @1() {
	ret i32* @0
}
; CHECK: define internal fastcc i32* @1()
define i32* @f() {
entry:
	call i32* @1()
	ret i32* %0
}
GlobalOpt: FileCheck-ize test No functionality change. llvm-svn: 212103 2014-07-01 23:26:47 +08:00			`; RUN: opt < %s -globalopt -S \| FileCheck %s`
While thinking about the one-definition-rule and trying to find a tiny mouse hole to squeeze through, it struck me that globals without a name can be considered internal since they can't be referenced from outside the current module. This patch makes GlobalOpt give them internal linkage. Also done for aliases even though they always have names, since in my opinion anonymous aliases should be allowed for consistency with global variables and functions. So if that happens one day, this code is ready! llvm-svn: 66267 2009-03-06 18:21:56 +08:00
			`global i32 0`
GlobalOpt: FileCheck-ize test No functionality change. llvm-svn: 212103 2014-07-01 23:26:47 +08:00			`; CHECK: @0 = internal global i32 0`
While thinking about the one-definition-rule and trying to find a tiny mouse hole to squeeze through, it struck me that globals without a name can be considered internal since they can't be referenced from outside the current module. This patch makes GlobalOpt give them internal linkage. Also done for aliases even though they always have names, since in my opinion anonymous aliases should be allowed for consistency with global variables and functions. So if that happens one day, this code is ready! llvm-svn: 66267 2009-03-06 18:21:56 +08:00			`define i32* @1() {`
			`ret i32* @0`
			`}`
GlobalOpt: FileCheck-ize test No functionality change. llvm-svn: 212103 2014-07-01 23:26:47 +08:00			`; CHECK: define internal fastcc i32* @1()`
While thinking about the one-definition-rule and trying to find a tiny mouse hole to squeeze through, it struck me that globals without a name can be considered internal since they can't be referenced from outside the current module. This patch makes GlobalOpt give them internal linkage. Also done for aliases even though they always have names, since in my opinion anonymous aliases should be allowed for consistency with global variables and functions. So if that happens one day, this code is ready! llvm-svn: 66267 2009-03-06 18:21:56 +08:00			`define i32* @f() {`
			`entry:`
			`call i32* @1()`
			`ret i32* %0`
			`}`