llvm/test/Linker/unnamed-addr1-a.ll
Rafael Espindola 6fd1b8ee48 Allow aliases to be unnamed_addr.
Alias with unnamed_addr were in a strange state. It is stored in GlobalValue,
the language reference talks about "unnamed_addr aliases" but the verifier
was rejecting them.

It seems natural to allow unnamed_addr in aliases:

* It is a property of how it is accessed, not of the data itself.
* It is perfectly possible to write code that depends on the address
of an alias.

This patch then makes unname_addr legal for aliases. One side effect is that
the syntax changes for a corner case: In globals, unnamed_addr is now printed
before the address space.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210302 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-06 01:20:28 +00:00

58 lines
2.0 KiB
LLVM

; RUN: llvm-link %s %p/unnamed-addr1-b.ll -S -o - | FileCheck %s
; Only in this file
@global-a = common global i32 0
; CHECK-DAG: @global-a = common global i32 0
@global-b = common unnamed_addr global i32 0
; CHECK-DAG: @global-b = common unnamed_addr global i32 0
define weak void @func-a() { ret void }
; CHECK-DAG: define weak void @func-a() {
define weak void @func-b() unnamed_addr { ret void }
; CHECK-DAG: define weak void @func-b() unnamed_addr {
; Other file has unnamed_addr definition
@global-c = common unnamed_addr global i32 0
; CHECK-DAG: @global-c = common unnamed_addr global i32 0
@global-d = external global i32
; CHECK-DAG: @global-d = global i32 42
@global-e = external unnamed_addr global i32
; CHECK-DAG: @global-e = unnamed_addr global i32 42
@global-f = weak global i32 42
; CHECK-DAG: @global-f = global i32 42
@alias-a = weak global i32 42
; CHECK-DAG: @alias-a = alias i32* @global-f
@alias-b = weak unnamed_addr global i32 42
; CHECK-DAG: @alias-b = unnamed_addr alias i32* @global-f
declare void @func-c()
; CHECK-DAG: define weak void @func-c() {
define weak void @func-d() { ret void }
; CHECK-DAG: define weak void @func-d() {
define weak void @func-e() unnamed_addr { ret void }
; CHECK-DAG: define weak void @func-e() unnamed_addr {
; Other file has non-unnamed_addr definition
@global-g = common unnamed_addr global i32 0
; CHECK-DAG: @global-g = common global i32 0
@global-h = external global i32
; CHECK-DAG: @global-h = global i32 42
@global-i = external unnamed_addr global i32
; CHECK-DAG: @global-i = global i32 42
@global-j = weak global i32 42
; CHECK-DAG: @global-j = global i32 42
@alias-c = weak global i32 42
; CHECK-DAG: @alias-c = alias i32* @global-f
@alias-d = weak unnamed_addr global i32 42
; CHECK-DAG: @alias-d = alias i32* @global-f
declare void @func-g()
; CHECK-DAG: define weak void @func-g() {
define weak void @func-h() { ret void }
; CHECK-DAG: define weak void @func-h() {
define weak void @func-i() unnamed_addr { ret void }
; CHECK-DAG: define weak void @func-i() {