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 13 @0 = global i64 u0x00001 ; hexadecimal unsigned integer constants 14 @1 = global 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 25 @2 = global i32* bitcast (float* @4 to i32*) ;; Forward numeric reference 26 @3 = global float* @4 ;; Duplicate forward numeric reference 27 @4 = global 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
