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7209bfff92
getelementptr instructions and not to add pointers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4049 91177308-0d34-0410-b5e6-96231b3b80d8
89 lines
3.8 KiB
LLVM
89 lines
3.8 KiB
LLVM
; This testcase is for testing expressions constructed from
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; constant values, including constant pointers to globals.
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;
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;;-------------------------------
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;; Test constant cast expressions
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;;-------------------------------
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%t2 = global int* %t1 ;; Forward reference without cast
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%t3 = global uint* cast (int* %t1 to uint*) ;; Forward reference with cast
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%t1 = global int 4 ;; int* %0
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%t4 = global int** cast (uint** %t3 to int**) ;; Cast of a previous cast
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%t5 = global uint** %t3 ;; Reference to a previous cast
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%t6 = global int*** %t4 ;; Different ref. to a previous cast
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%t7 = global float* cast (int 12345678 to float*) ;; Cast ordinary value to ptr
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%t9 = global int cast (float cast (int 8 to float) to int) ;; Nested cast expression
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global int* cast (float* %0 to int*) ;; Forward numeric reference
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global float* %0 ;; Duplicate forward numeric reference
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global float 0.0
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;;---------------------------------------------------
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;; Test constant getelementpr expressions for arrays
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;;---------------------------------------------------
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%array = constant [2 x int] [ int 12, int 52 ]
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%arrayPtr = global int* getelementptr ([2 x int]* %array, long 0, long 0) ;; int* &%array[0][0]
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%arrayPtr5 = global int* getelementptr (int** %arrayPtr, long 0, long 5) ;; int* &%arrayPtr[5]
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%somestr = constant [11x sbyte] c"hello world"
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%char5 = global sbyte* getelementptr([11x sbyte]* %somestr, long 0, long 5)
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;; cast of getelementptr
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%char8a = global int* cast (sbyte* getelementptr([11x sbyte]* %somestr, long 0, long 8) to int*)
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;; getelementptr containing casts
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%char8b = global sbyte* getelementptr([11x sbyte]* %somestr, long cast (ubyte 0 to long), long cast (sbyte 8 to long))
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;;-------------------------------------------------------
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;; TODO: Test constant getelementpr expressions for structures
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;;-------------------------------------------------------
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%SType = type { int , {float, {ubyte} }, ulong } ;; struct containing struct
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%SAType = type { int , {[2x float], ulong} } ;; struct containing array
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%S1 = global %SType* null ;; Global initialized to NULL
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%S2c = constant %SType { int 1, {float,{ubyte}} {float 2.0, {ubyte} {ubyte 3}}, ulong 4}
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%S3c = constant %SAType { int 1, {[2x float], ulong} {[2x float] [float 2.0, float 3.0], ulong 4} }
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%S1ptr = global %SType** %S1 ;; Ref. to global S1
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%S2 = global %SType* %S2c ;; Ref. to constant S2
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%S3 = global %SAType* %S3c ;; Ref. to constant S3
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;; Pointer to float (**%S1).1.0
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%S1fld1a = global float* getelementptr (%SType** %S1, long 0, long 0, ubyte 1, ubyte 0)
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;; Another ptr to the same!
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%S1fld1b = global float* getelementptr (%SType*** %S1ptr, long 0, long 0, long 0, ubyte 1, ubyte 0)
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%S1fld1bptr = global float** %S1fld1b ;; Ref. to previous pointer
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;; Pointer to ubyte (**%S2).1.1.0
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%S2fld3 = global ubyte* getelementptr (%SType** %S2, long 0, long 0, ubyte 1, ubyte 1, ubyte 0)
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;; Pointer to float (**%S2).1.0[0]
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%S3fld3 = global float* getelementptr (%SAType** %S3, long 0, long 0, ubyte 1, ubyte 0, long 0)
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;;---------------------------------------------------------
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;; TODO: Test constant expressions for unary and binary operators
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;;---------------------------------------------------------
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;;---------------------------------------------------
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;; Test duplicate constant expressions
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;;---------------------------------------------------
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%t4 = global int** cast (uint** %t3 to int**)
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%char8a = global int* cast (sbyte* getelementptr([11x sbyte]* %somestr, long 0, long 8) to int*)
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%S3fld3 = global float* getelementptr (%SAType** %S3, long 0, long 0, ubyte 1, ubyte 0, long 0)
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;;---------------------------------------------------
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implementation
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