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; 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 for testing expressions constructed from
; constant values, including constant pointers to globals.
;
;;-------------------------------
;; Test constant cast expressions
;;-------------------------------
global ulong u0x00001 ; hexadecimal unsigned integer constants
global long s0x0012312 ; hexadecimal signed integer constants
%t2 = global int* %t1 ;; Forward reference without cast
%t3 = global uint* cast (int* %t1 to uint*) ;; Forward reference with cast
%t1 = global int 4 ;; int* %0
%t4 = global int** cast (uint** %t3 to int**) ;; Cast of a previous cast
%t5 = global uint** %t3 ;; Reference to a previous cast
%t6 = global int*** %t4 ;; Different ref. to a previous cast
%t7 = global float* cast (int 12345678 to float*) ;; Cast ordinary value to ptr
%t9 = global int cast (float cast (int 8 to float) to int) ;; Nested cast expression
global int* cast (float* %0 to int*) ;; Forward numeric reference
global float* %0 ;; Duplicate forward numeric reference
global float 0.0
;;---------------------------------------------------
;; Test constant getelementpr expressions for arrays
;;---------------------------------------------------
%array = constant [2 x int] [ int 12, int 52 ]
%arrayPtr = global int* getelementptr ([2 x int]* %array, long 0, long 0) ;; int* &%array[0][0]
%arrayPtr5 = global int** getelementptr (int** %arrayPtr, long 5) ;; int* &%arrayPtr[5]
%somestr = constant [11x sbyte] c"hello world"
%char5 = global sbyte* getelementptr([11x sbyte]* %somestr, long 0, long 5)
;; cast of getelementptr
%char8a = global int* cast (sbyte* getelementptr([11x sbyte]* %somestr, long 0, long 8) to int*)
;; getelementptr containing casts
%char8b = global sbyte* getelementptr([11x sbyte]* %somestr, long cast (ubyte 0 to long), long cast (sbyte 8 to long))
;;-------------------------------------------------------
;; TODO: Test constant getelementpr expressions for structures
;;-------------------------------------------------------
%SType = type { int , {float, {ubyte} }, ulong } ;; struct containing struct
%SAType = type { int , {[2x float], ulong} } ;; struct containing array
%S1 = global %SType* null ;; Global initialized to NULL
%S2c = constant %SType { int 1, {float,{ubyte}} {float 2.0, {ubyte} {ubyte 3}}, ulong 4}
%S3c = constant %SAType { int 1, {[2x float], ulong} {[2x float] [float 2.0, float 3.0], ulong 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* %S2c, long 0, uint 1, uint 0)
;; Another ptr to the same!
%S1fld1b = global float* getelementptr (%SType* %S2c, long 0, uint 1, uint 0)
%S1fld1bptr = global float** %S1fld1b ;; Ref. to previous pointer
;; Pointer to ubyte (**%S2).1.1.0
%S2fld3 = global ubyte* getelementptr (%SType* %S2c, long 0, uint 1, uint 1, uint 0)
;; Pointer to float (**%S2).1.0[0]
;%S3fld3 = global float* getelementptr (%SAType** %S3, long 0, long 0, uint 1, uint 0, long 0)
;;---------------------------------------------------------
;; TODO: Test constant expressions for unary and binary operators
;;---------------------------------------------------------
;;---------------------------------------------------
;; Test duplicate constant expressions
;;---------------------------------------------------
%t4 = global int** cast (uint** %t3 to int**)
%char8a = global int* cast (sbyte* getelementptr([11x sbyte]* %somestr, long 0, long 8) to int*)
;%S3fld3 = global float* getelementptr (%SAType** %S3, long 0, long 0, uint 1, uint 0, long 0)
;;---------------------------------------------------
implementation
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