e4a4122eb6
Remove support for zext and sext constant expressions. All places creating them have been removed beforehand, so this just removes the APIs and uses of these constant expressions in tests. There is some additional cleanup that can be done on top of this, e.g. we can remove the ZExtInst vs ZExtOperator footgun. This is part of https://discourse.llvm.org/t/rfc-remove-most-constant-expressions/63179.
81 lines
3.6 KiB
LLVM
81 lines
3.6 KiB
LLVM
; RUN: llvm-as < %s | llvm-dis > %t1.ll
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; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
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; RUN: diff %t1.ll %t2.ll
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; 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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@0 = global i64 u0x00001 ; hexadecimal unsigned integer constants
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@1 = global i64 s0x0012312 ; hexadecimal signed integer constants
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@t2 = global i32* @t1 ;; Forward reference without cast
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@t3 = global i32* bitcast (i32* @t1 to i32*) ;; Forward reference with cast
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@t1 = global i32 4 ;; i32* @0
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@t4 = global i32** bitcast (i32** @t3 to i32**) ;; Cast of a previous cast
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@t5 = global i32** @t3 ;; Reference to a previous cast
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@t6 = global i32*** @t4 ;; Different ref. to a previous cast
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@t7 = global float* inttoptr (i32 12345678 to float*) ;; Cast ordinary value to ptr
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@t9 = global i32 bitcast (float bitcast (i32 8 to float) to i32) ;; Nested cast expression
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@2 = global i32* bitcast (float* @4 to i32*) ;; Forward numeric reference
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@3 = global float* @4 ;; Duplicate forward numeric reference
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@4 = 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 i32] [ i32 12, i32 52 ]
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@arrayPtr = global i32* getelementptr ([2 x i32], [2 x i32]* @array, i64 0, i64 0) ;; i32* &@array[0][0]
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@arrayPtr5 = global i32** getelementptr (i32*, i32** @arrayPtr, i64 5) ;; i32* &@arrayPtr[5]
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@somestr = constant [11x i8] c"hello world"
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@char5 = global i8* getelementptr([11x i8], [11x i8]* @somestr, i64 0, i64 5)
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;; cast of getelementptr
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@char8a = global i32* bitcast (i8* getelementptr([11x i8], [11x i8]* @somestr, i64 0, i64 8) to i32*)
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;; getelementptr containing casts
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@char8b = global i8* getelementptr([11x i8], [11x i8]* @somestr, i64 trunc (i128 0 to i64), i64 trunc (i128 8 to i64))
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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 { i32 , {float, {i8} }, i64 } ;; struct containing struct
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%SAType = type { i32 , {[2x float], i64} } ;; struct containing array
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@S1 = global %SType* null ;; Global initialized to NULL
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@S2c = constant %SType { i32 1, {float,{i8}} {float 2.0, {i8} {i8 3}}, i64 4}
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@S3c = constant %SAType { i32 1, {[2x float], i64} {[2x float] [float 2.0, float 3.0], i64 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, %SType* @S2c, i64 0, i32 1, i32 0)
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;; Another ptr to the same!
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@S1fld1b = global float* getelementptr (%SType, %SType* @S2c, i64 0, i32 1, i32 0)
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@S1fld1bptr = global float** @S1fld1b ;; Ref. to previous pointer
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;; Pointer to i8 (**@S2).1.1.0
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@S2fld3 = global i8* getelementptr (%SType, %SType* @S2c, i64 0, i32 1, i32 1, i32 0)
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;; Pointer to float (**@S2).1.0[0]
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;@S3fld3 = global float* getelementptr (%SAType*, %SAType** @S3, i64 0, i64 0, i32 1, i32 0, i64 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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