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llvm-mirror/test/Integer/constpointer_bt.ll
Rafael Espindola 3560edede3 Make "@name =" mandatory for globals in .ll files.
An oddity of the .ll syntax is that the "@var = " in

@var = global i32 42

is optional. Writing just

global i32 42

is equivalent to

@0 = global i32 42

This means that there is a pretty big First set at the top level. The
current implementation maintains it manually. I was trying to refactor
it, but then started wondering why keep it a all. I personally find the
above syntax confusing. It looks like something is missing.

This patch removes the feature and simplifies the parser.

llvm-svn: 269096
2016-05-10 18:22:45 +00:00

33 lines
1.1 KiB
LLVM

; RUN: llvm-as %s -o - | llvm-dis > %t1.ll
; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
; RUN: diff %t1.ll %t2.ll
; This testcase is primarily used for testing that global values can be used as
; constant pointer initializers. This is tricky because they can be forward
; declared and involves an icky bytecode encoding. There is no meaningful
; optimization that can be performed on this file, it is just here to test
; assembly and disassembly.
;
@t3 = global i40 * @t1 ;; Forward reference
@t1 = global i40 4
@t4 = global i40 ** @t3 ;; reference to reference
@t2 = global i40 * @t1
@0 = global float * @2 ;; Forward numeric reference
@1 = global float * @2 ;; Duplicate forward numeric reference
@2 = global float 0.0
@3 = global float * @2 ;; Numeric reference
@fptr = global void() * @f ;; Forward ref method defn
declare void @"f"() ;; External method
@sptr1 = global [11x i8]* @somestr ;; Forward ref to a constant
@somestr = constant [11x i8] c"hello world"
@sptr2 = global [11x i8]* @somestr