1 ; RUN: llvm-as %s -o - | llvm-dis > %t1.ll
2 ; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
3 ; RUN: diff %t1.ll %t2.ll
6 ; This testcase is for testing expressions constructed from
7 ; constant values, including constant pointers to globals.
10 ;;-------------------------------
11 ;; Test constant cast expressions
12 ;;-------------------------------
14 global i63 u0x00001 ; hexadecimal unsigned integer constants
15 global i63 s0x012312 ; hexadecimal signed integer constants
17 @t2 = global i33* @t1 ;; Forward reference without cast
18 @t3 = global i33* bitcast (i33* @t1 to i33*) ;; Forward reference with cast
19 @t1 = global i33 4 ;; i32* @0
20 @t4 = global i33** bitcast (i33** @t3 to i33**) ;; Cast of a previous cast
21 @t5 = global i33** @t3 ;; Reference to a previous cast
22 @t6 = global i33*** @t4
23 @t7 = global float* inttoptr (i32 12345678 to float*) ;; Cast ordinary value to ptr
24 @t9 = global i33 fptosi (float sitofp (i33 8 to float) to i33) ;; Nested cast expression
27 global i32* bitcast (float* @4 to i32*) ;; Forward numeric reference
28 global float* @4 ;; Duplicate forward numeric reference
32 ;;---------------------------------------------------
33 ;; Test constant getelementpr expressions for arrays
34 ;;---------------------------------------------------
36 @array = constant [2 x i33] [ i33 12, i33 52 ]
37 @arrayPtr = global i33* getelementptr ([2 x i33]* @array, i64 0, i64 0) ;; i33* &@array[0][0]
38 @arrayPtr5 = global i33** getelementptr (i33** @arrayPtr, i64 5) ;; i33* &@arrayPtr[5]
40 @somestr = constant [11x i8] c"hello world"
41 @char5 = global i8* getelementptr([11x i8]* @somestr, i64 0, i64 5)
43 ;; cast of getelementptr
44 @char8a = global i33* bitcast (i8* getelementptr([11x i8]* @somestr, i64 0, i64 8) to i33*)
46 ;; getelementptr containing casts
47 @char8b = global i8* getelementptr([11x i8]* @somestr, i64 sext (i8 0 to i64), i64 sext (i8 8 to i64))
49 ;;-------------------------------------------------------
50 ;; TODO: Test constant getelementpr expressions for structures
51 ;;-------------------------------------------------------
53 %SType = type { i33 , {float, {i8} }, i64 } ;; struct containing struct
54 %SAType = type { i33 , {[2x float], i64} } ;; struct containing array
56 @S1 = global %SType* null ;; Global initialized to NULL
57 @S2c = constant %SType { i33 1, {float,{i8}} {float 2.0, {i8} {i8 3}}, i64 4}
59 @S3c = constant %SAType { i33 1, {[2x float], i64} {[2x float] [float 2.0, float 3.0], i64 4} }
61 @S1ptr = global %SType** @S1 ;; Ref. to global S1
62 @S2 = global %SType* @S2c ;; Ref. to constant S2
63 @S3 = global %SAType* @S3c ;; Ref. to constant S3
65 ;; Pointer to float (**@S1).1.0
66 @S1fld1a = global float* getelementptr (%SType* @S2c, i64 0, i32 1, i32 0)
67 ;; Another ptr to the same!
68 @S1fld1b = global float* getelementptr (%SType* @S2c, i64 0, i32 1, i32 0)
70 @S1fld1bptr = global float** @S1fld1b ;; Ref. to previous pointer
72 ;; Pointer to i8 (**@S2).1.1.0
73 @S2fld3 = global i8* getelementptr (%SType* @S2c, i64 0, i32 1, i32 1, i32 0)
75 ;; Pointer to float (**@S2).1.0[0]
76 ;@S3fld3 = global float* getelementptr (%SAType** @S3, i64 0, i64 0, i32 1, i32 0, i64 0)
78 ;;---------------------------------------------------------
79 ;; TODO: Test constant expressions for unary and binary operators
80 ;;---------------------------------------------------------
82 ;;---------------------------------------------------