mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 19:52:54 +01:00
3560edede3
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
81 lines
3.6 KiB
LLVM
81 lines
3.6 KiB
LLVM
; RUN: llvm-as < %s | llvm-dis > %t1.ll
|
|
; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
|
|
; RUN: diff %t1.ll %t2.ll
|
|
|
|
; This testcase is for testing expressions constructed from
|
|
; constant values, including constant pointers to globals.
|
|
;
|
|
|
|
;;-------------------------------
|
|
;; Test constant cast expressions
|
|
;;-------------------------------
|
|
|
|
@0 = global i64 u0x00001 ; hexadecimal unsigned integer constants
|
|
@1 = global i64 s0x0012312 ; hexadecimal signed integer constants
|
|
|
|
@t2 = global i32* @t1 ;; Forward reference without cast
|
|
@t3 = global i32* bitcast (i32* @t1 to i32*) ;; Forward reference with cast
|
|
@t1 = global i32 4 ;; i32* @0
|
|
@t4 = global i32** bitcast (i32** @t3 to i32**) ;; Cast of a previous cast
|
|
@t5 = global i32** @t3 ;; Reference to a previous cast
|
|
@t6 = global i32*** @t4 ;; Different ref. to a previous cast
|
|
@t7 = global float* inttoptr (i32 12345678 to float*) ;; Cast ordinary value to ptr
|
|
@t9 = global i32 bitcast (float bitcast (i32 8 to float) to i32) ;; Nested cast expression
|
|
|
|
@2 = global i32* bitcast (float* @4 to i32*) ;; Forward numeric reference
|
|
@3 = global float* @4 ;; Duplicate forward numeric reference
|
|
@4 = global float 0.0
|
|
|
|
|
|
;;---------------------------------------------------
|
|
;; Test constant getelementpr expressions for arrays
|
|
;;---------------------------------------------------
|
|
|
|
@array = constant [2 x i32] [ i32 12, i32 52 ]
|
|
@arrayPtr = global i32* getelementptr ([2 x i32], [2 x i32]* @array, i64 0, i64 0) ;; i32* &@array[0][0]
|
|
@arrayPtr5 = global i32** getelementptr (i32*, i32** @arrayPtr, i64 5) ;; i32* &@arrayPtr[5]
|
|
|
|
@somestr = constant [11x i8] c"hello world"
|
|
@char5 = global i8* getelementptr([11x i8], [11x i8]* @somestr, i64 0, i64 5)
|
|
|
|
;; cast of getelementptr
|
|
@char8a = global i32* bitcast (i8* getelementptr([11x i8], [11x i8]* @somestr, i64 0, i64 8) to i32*)
|
|
|
|
;; getelementptr containing casts
|
|
@char8b = global i8* getelementptr([11x i8], [11x i8]* @somestr, i64 sext (i8 0 to i64), i64 sext (i8 8 to i64))
|
|
|
|
;;-------------------------------------------------------
|
|
;; TODO: Test constant getelementpr expressions for structures
|
|
;;-------------------------------------------------------
|
|
|
|
%SType = type { i32 , {float, {i8} }, i64 } ;; struct containing struct
|
|
%SAType = type { i32 , {[2x float], i64} } ;; struct containing array
|
|
|
|
@S1 = global %SType* null ;; Global initialized to NULL
|
|
@S2c = constant %SType { i32 1, {float,{i8}} {float 2.0, {i8} {i8 3}}, i64 4}
|
|
|
|
@S3c = constant %SAType { i32 1, {[2x float], i64} {[2x float] [float 2.0, float 3.0], i64 4} }
|
|
|
|
@S1ptr = global %SType** @S1 ;; Ref. to global S1
|
|
@S2 = global %SType* @S2c ;; Ref. to constant S2
|
|
@S3 = global %SAType* @S3c ;; Ref. to constant S3
|
|
|
|
;; Pointer to float (**@S1).1.0
|
|
@S1fld1a = global float* getelementptr (%SType, %SType* @S2c, i64 0, i32 1, i32 0)
|
|
;; Another ptr to the same!
|
|
@S1fld1b = global float* getelementptr (%SType, %SType* @S2c, i64 0, i32 1, i32 0)
|
|
|
|
@S1fld1bptr = global float** @S1fld1b ;; Ref. to previous pointer
|
|
|
|
;; Pointer to i8 (**@S2).1.1.0
|
|
@S2fld3 = global i8* getelementptr (%SType, %SType* @S2c, i64 0, i32 1, i32 1, i32 0)
|
|
|
|
;; Pointer to float (**@S2).1.0[0]
|
|
;@S3fld3 = global float* getelementptr (%SAType*, %SAType** @S3, i64 0, i64 0, i32 1, i32 0, i64 0)
|
|
|
|
;;---------------------------------------------------------
|
|
;; TODO: Test constant expressions for unary and binary operators
|
|
;;---------------------------------------------------------
|
|
|
|
;;---------------------------------------------------
|