1; RUN: llvm-as < %s | llvm-dis > %t1.ll
2; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
3; RUN: diff %t1.ll %t2.ll
4
5; This testcase is for testing expressions constructed from
6; constant values, including constant pointers to globals.
7;
8
9;;-------------------------------
10;; Test constant cast expressions
11;;-------------------------------
12
13global i64 u0x00001     ; hexadecimal unsigned integer constants
14global i64  s0x0012312   ; hexadecimal signed integer constants
15
16@t2 = global i32* @t1                             ;; Forward reference without cast
17@t3 = global i32* bitcast (i32* @t1 to i32*)       ;; Forward reference with cast
18@t1 = global i32 4                                ;; i32* @0
19@t4 = global i32** bitcast (i32** @t3 to i32**)     ;; Cast of a previous cast
20@t5 = global i32** @t3                           ;; Reference to a previous cast
21@t6 = global i32*** @t4                           ;; Different ref. to a previous cast
22@t7 = global float* inttoptr (i32 12345678 to float*) ;; Cast ordinary value to ptr
23@t9 = global i32 bitcast (float bitcast (i32 8 to float) to i32) ;; Nested cast expression
24
25global i32* bitcast (float* @4 to i32*)   ;; Forward numeric reference
26global float* @4                       ;; Duplicate forward numeric reference
27global float 0.0
28
29
30;;---------------------------------------------------
31;; Test constant getelementpr expressions for arrays
32;;---------------------------------------------------
33
34@array  = constant [2 x i32] [ i32 12, i32 52 ]
35@arrayPtr = global i32* getelementptr ([2 x i32], [2 x i32]* @array, i64 0, i64 0)    ;; i32* &@array[0][0]
36@arrayPtr5 = global i32** getelementptr (i32*, i32** @arrayPtr, i64 5)    ;; i32* &@arrayPtr[5]
37
38@somestr = constant [11x i8] c"hello world"
39@char5  = global i8* getelementptr([11x i8], [11x i8]* @somestr, i64 0, i64 5)
40
41;; cast of getelementptr
42@char8a = global i32* bitcast (i8* getelementptr([11x i8], [11x i8]* @somestr, i64 0, i64 8) to i32*)
43
44;; getelementptr containing casts
45@char8b = global i8* getelementptr([11x i8], [11x i8]* @somestr, i64 sext (i8 0 to i64), i64 sext (i8 8 to i64))
46
47;;-------------------------------------------------------
48;; TODO: Test constant getelementpr expressions for structures
49;;-------------------------------------------------------
50
51%SType  = type { i32 , {float, {i8} }, i64 } ;; struct containing struct
52%SAType = type { i32 , {[2x float], i64} } ;; struct containing array
53
54@S1 = global %SType* null			;; Global initialized to NULL
55@S2c = constant %SType { i32 1, {float,{i8}} {float 2.0, {i8} {i8 3}}, i64 4}
56
57@S3c = constant %SAType { i32 1, {[2x float], i64} {[2x float] [float 2.0, float 3.0], i64 4} }
58
59@S1ptr = global %SType** @S1		    ;; Ref. to global S1
60@S2  = global %SType* @S2c		    ;; Ref. to constant S2
61@S3  = global %SAType* @S3c		    ;; Ref. to constant S3
62
63					    ;; Pointer to float (**@S1).1.0
64@S1fld1a = global float* getelementptr (%SType, %SType* @S2c, i64 0, i32 1, i32 0)
65					    ;; Another ptr to the same!
66@S1fld1b = global float* getelementptr (%SType, %SType* @S2c, i64 0, i32 1, i32 0)
67
68@S1fld1bptr = global float** @S1fld1b	    ;; Ref. to previous pointer
69
70					    ;; Pointer to i8 (**@S2).1.1.0
71@S2fld3 = global i8* getelementptr (%SType, %SType* @S2c, i64 0, i32 1, i32 1, i32 0)
72
73					    ;; Pointer to float (**@S2).1.0[0]
74;@S3fld3 = global float* getelementptr (%SAType*, %SAType** @S3, i64 0, i64 0, i32 1, i32 0, i64 0)
75
76;;---------------------------------------------------------
77;; TODO: Test constant expressions for unary and binary operators
78;;---------------------------------------------------------
79
80;;---------------------------------------------------
81