mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
9f2d511fe1
Before this patch we had @a = weak global ... but @b = alias weak ... The patch changes aliases to look more like global variables. Looking at some really old code suggests that the reason was that the old bison based parser had a reduction for alias linkages and another one for global variable linkages. Putting the alias first avoided the reduce/reduce conflict. The days of the old .ll parser are long gone. The new one parses just "linkage" and a later check is responsible for deciding if a linkage is valid in a given context. llvm-svn: 214355
28 lines
636 B
LLVM
28 lines
636 B
LLVM
; RUN: not llvm-as %s -o /dev/null 2>&1 | FileCheck %s
|
|
|
|
|
|
declare void @f()
|
|
@fa = alias void ()* @f
|
|
; CHECK: Alias must point to a definition
|
|
; CHECK-NEXT: @fa
|
|
|
|
@g = external global i32
|
|
@ga = alias i32* @g
|
|
; CHECK: Alias must point to a definition
|
|
; CHECK-NEXT: @ga
|
|
|
|
|
|
@test2_a = alias i32* @test2_b
|
|
@test2_b = alias i32* @test2_a
|
|
; CHECK: Aliases cannot form a cycle
|
|
; CHECK-NEXT: i32* @test2_a
|
|
; CHECK-NEXT: Aliases cannot form a cycle
|
|
; CHECK-NEXT: i32* @test2_b
|
|
|
|
|
|
@test3_a = global i32 42
|
|
@test3_b = weak alias i32* @test3_a
|
|
@test3_c = alias i32* @test3_b
|
|
; CHECK: Alias cannot point to a weak alias
|
|
; CHECK-NEXT: i32* @test3_c
|