add some more hooks to the C bindings, patch by Kenneth Uildriks!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83821 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm-c/Core.h

@@ -89,6 +89,12 @@ typedef struct LLVMOpaqueMemoryBuffer *LLVMMemoryBufferRef;
 /** See the llvm::PassManagerBase class. */
 typedef struct LLVMOpaquePassManager *LLVMPassManagerRef;
 
+/**
+ * Used to iterate through the uses of a Value, allowing access to all Values
+ * that use this Value.  See the llvm::Use and llvm::value_use_iterator classes.
+ */
+typedef struct LLVMOpaqueUseIterator *LLVMUseIteratorRef;
+
 typedef enum {
     LLVMZExtAttribute       = 1<<0,
     LLVMSExtAttribute       = 1<<1,
@@ -113,6 +119,62 @@ typedef enum {
     LLVMInlineHintAttribute = 1<<25
 } LLVMAttribute;
 
+typedef enum {
+  LLVMRet            = 1,
+  LLVMBr             = 2,
+  LLVMSwitch         = 3,
+  LLVMInvoke         = 4,
+  LLVMUnwind         = 5,
+  LLVMUnreachable    = 6,
+  LLVMAdd            = 7,
+  LLVMFAdd           = 8,
+  LLVMSub            = 9,
+  LLVMFSub           = 10,
+  LLVMMul            = 11,
+  LLVMFMul           = 12,
+  LLVMUDiv           = 13,
+  LLVMSDiv           = 14,
+  LLVMFDiv           = 15,
+  LLVMURem           = 16,
+  LLVMSRem           = 17,
+  LLVMFRem           = 18,
+  LLVMShl            = 19,
+  LLVMLShr           = 20,
+  LLVMAShr           = 21,
+  LLVMAnd            = 22,
+  LLVMOr             = 23,
+  LLVMXor            = 24,
+  LLVMMalloc         = 25,
+  LLVMFree           = 26,
+  LLVMAlloca         = 27,
+  LLVMLoad           = 28,
+  LLVMStore          = 29,
+  LLVMGetElementPtr  = 30,
+  LLVMTrunk          = 31,
+  LLVMZExt           = 32,
+  LLVMSExt           = 33,
+  LLVMFPToUI         = 34,
+  LLVMFPToSI         = 35,
+  LLVMUIToFP         = 36,
+  LLVMSIToFP         = 37,
+  LLVMFPTrunc        = 38,
+  LLVMFPExt          = 39,
+  LLVMPtrToInt       = 40,
+  LLVMIntToPtr       = 41,
+  LLVMBitCast        = 42,
+  LLVMICmp           = 43,
+  LLVMFCmp           = 44,
+  LLVMPHI            = 45,
+  LLVMCall           = 46,
+  LLVMSelect         = 47,
+  LLVMVAArg          = 50,
+  LLVMExtractElement = 51,
+  LLVMInsertElement  = 52,
+  LLVMShuffleVector  = 53,
+  LLVMExtractValue   = 54,
+  LLVMInsertValue    = 55
+} LLVMOpcode;
+
 typedef enum {
   LLVMVoidTypeKind,        /**< type with no size */
   LLVMFloatTypeKind,       /**< 32 bit floating point type */
@@ -419,6 +481,7 @@ LLVMTypeRef LLVMTypeOf(LLVMValueRef Val);
 const char *LLVMGetValueName(LLVMValueRef Val);
 void LLVMSetValueName(LLVMValueRef Val, const char *Name);
 void LLVMDumpValue(LLVMValueRef Val);
+void LLVMReplaceAllUsesWith(LLVMValueRef OldVal, LLVMValueRef NewVal);
 
 /* Conversion functions. Return the input value if it is an instance of the
    specified class, otherwise NULL. See llvm::dyn_cast_or_null<>. */
@@ -426,6 +489,15 @@ void LLVMDumpValue(LLVMValueRef Val);
   LLVMValueRef LLVMIsA##name(LLVMValueRef Val);
 LLVM_FOR_EACH_VALUE_SUBCLASS(LLVM_DECLARE_VALUE_CAST)
 
+/* Operations on Uses */
+LLVMUseIteratorRef LLVMGetFirstUse(LLVMValueRef Val);
+LLVMUseIteratorRef LLVMGetNextUse(LLVMUseIteratorRef U);
+LLVMValueRef LLVMGetUser(LLVMUseIteratorRef U);
+LLVMValueRef LLVMGetUsedValue(LLVMUseIteratorRef U);
+
+/* Operations on Users */
+LLVMValueRef LLVMGetOperand(LLVMValueRef Val, unsigned Index);
+
 /* Operations on constants of any type */
 LLVMValueRef LLVMConstNull(LLVMTypeRef Ty); /* all zeroes */
 LLVMValueRef LLVMConstAllOnes(LLVMTypeRef Ty); /* only for int/vector */
@@ -446,6 +518,8 @@ LLVMValueRef LLVMConstReal(LLVMTypeRef RealTy, double N);
 LLVMValueRef LLVMConstRealOfString(LLVMTypeRef RealTy, const char *Text);
 LLVMValueRef LLVMConstRealOfStringAndSize(LLVMTypeRef RealTy, const char *Text,
                                           unsigned SLen);
+unsigned long long LLVMConstIntGetZExtValue(LLVMValueRef ConstantVal);
+long long LLVMConstIntGetSExtValue(LLVMValueRef ConstantVal);
 
 
 /* Operations on composite constants */
@@ -464,6 +538,7 @@ LLVMValueRef LLVMConstStruct(LLVMValueRef *ConstantVals, unsigned Count,
 LLVMValueRef LLVMConstVector(LLVMValueRef *ScalarConstantVals, unsigned Size);
 
 /* Constant expressions */
+LLVMOpcode LLVMGetConstOpcode(LLVMValueRef ConstantVal);
 LLVMValueRef LLVMAlignOf(LLVMTypeRef Ty);
 LLVMValueRef LLVMSizeOf(LLVMTypeRef Ty);
 LLVMValueRef LLVMConstNeg(LLVMValueRef ConstantVal);
@@ -587,6 +662,7 @@ void LLVMSetFunctionCallConv(LLVMValueRef Fn, unsigned CC);
 const char *LLVMGetGC(LLVMValueRef Fn);
 void LLVMSetGC(LLVMValueRef Fn, const char *Name);
 void LLVMAddFunctionAttr(LLVMValueRef Fn, LLVMAttribute PA);
+LLVMAttribute LLVMGetFunctionAttr(LLVMValueRef Fn);
 void LLVMRemoveFunctionAttr(LLVMValueRef Fn, LLVMAttribute PA);
 
 /* Operations on parameters */
@@ -600,6 +676,7 @@ LLVMValueRef LLVMGetNextParam(LLVMValueRef Arg);
 LLVMValueRef LLVMGetPreviousParam(LLVMValueRef Arg);
 void LLVMAddAttribute(LLVMValueRef Arg, LLVMAttribute PA);
 void LLVMRemoveAttribute(LLVMValueRef Arg, LLVMAttribute PA);
+LLVMAttribute LLVMGetAttribute(LLVMValueRef Arg);
 void LLVMSetParamAlignment(LLVMValueRef Arg, unsigned align);
 
 /* Operations on basic blocks */
@@ -950,6 +1027,7 @@ namespace llvm {
   DEFINE_SIMPLE_CONVERSION_FUNCTIONS(ModuleProvider,     LLVMModuleProviderRef)
   DEFINE_SIMPLE_CONVERSION_FUNCTIONS(MemoryBuffer,       LLVMMemoryBufferRef  )
   DEFINE_SIMPLE_CONVERSION_FUNCTIONS(LLVMContext,        LLVMContextRef       )
+  DEFINE_SIMPLE_CONVERSION_FUNCTIONS(Use,                LLVMUseIteratorRef           )
   DEFINE_STDCXX_CONVERSION_FUNCTIONS(PassManagerBase,    LLVMPassManagerRef   )
   
   #undef DEFINE_STDCXX_CONVERSION_FUNCTIONS