Import LLVM 8.0.0 release including clang, lld and lldb.

12 files changed, 858 insertions, 88 deletions

diff --git a/gnu/llvm/include/llvm-c/Core.h b/gnu/llvm/include/llvm-c/Core.h
index 6792219f873..06de058bdc5 100644
--- a/gnu/llvm/include/llvm-c/Core.h
+++ b/gnu/llvm/include/llvm-c/Core.h
@@ -54,6 +54,8 @@ extern "C" {
  * @{
  */
 
+/// External users depend on the following values being stable. It is not safe
+/// to reorder them.
 typedef enum {
   /* Terminator Instructions */
   LLVMRet            = 1,
@@ -64,6 +66,9 @@ typedef enum {
   /* removed 6 due to API changes */
   LLVMUnreachable    = 7,
 
+  /* Standard Unary Operators */
+  LLVMFNeg           = 66,
+
   /* Standard Binary Operators */
   LLVMAdd            = 8,
   LLVMFAdd           = 9,
@@ -516,6 +521,23 @@ void LLVMContextSetYieldCallback(LLVMContextRef C, LLVMYieldCallback Callback,
                                  void *OpaqueHandle);
 
 /**
+ * Retrieve whether the given context is set to discard all value names.
+ *
+ * @see LLVMContext::shouldDiscardValueNames()
+ */
+LLVMBool LLVMContextShouldDiscardValueNames(LLVMContextRef C);
+
+/**
+ * Set whether the given context discards all value names.
+ *
+ * If true, only the names of GlobalValue objects will be available in the IR.
+ * This can be used to save memory and runtime, especially in release mode.
+ *
+ * @see LLVMContext::setDiscardValueNames()
+ */
+void LLVMContextSetDiscardValueNames(LLVMContextRef C, LLVMBool Discard);
+
+/**
  * Destroy a context instance.
  *
  * This should be called for every call to LLVMContextCreate() or memory
@@ -843,6 +865,63 @@ LLVMContextRef LLVMGetModuleContext(LLVMModuleRef M);
 LLVMTypeRef LLVMGetTypeByName(LLVMModuleRef M, const char *Name);
 
 /**
+ * Obtain an iterator to the first NamedMDNode in a Module.
+ *
+ * @see llvm::Module::named_metadata_begin()
+ */
+LLVMNamedMDNodeRef LLVMGetFirstNamedMetadata(LLVMModuleRef M);
+
+/**
+ * Obtain an iterator to the last NamedMDNode in a Module.
+ *
+ * @see llvm::Module::named_metadata_end()
+ */
+LLVMNamedMDNodeRef LLVMGetLastNamedMetadata(LLVMModuleRef M);
+
+/**
+ * Advance a NamedMDNode iterator to the next NamedMDNode.
+ *
+ * Returns NULL if the iterator was already at the end and there are no more
+ * named metadata nodes.
+ */
+LLVMNamedMDNodeRef LLVMGetNextNamedMetadata(LLVMNamedMDNodeRef NamedMDNode);
+
+/**
+ * Decrement a NamedMDNode iterator to the previous NamedMDNode.
+ *
+ * Returns NULL if the iterator was already at the beginning and there are
+ * no previous named metadata nodes.
+ */
+LLVMNamedMDNodeRef LLVMGetPreviousNamedMetadata(LLVMNamedMDNodeRef NamedMDNode);
+
+/**
+ * Retrieve a NamedMDNode with the given name, returning NULL if no such
+ * node exists.
+ *
+ * @see llvm::Module::getNamedMetadata()
+ */
+LLVMNamedMDNodeRef LLVMGetNamedMetadata(LLVMModuleRef M,
+                                        const char *Name, size_t NameLen);
+
+/**
+ * Retrieve a NamedMDNode with the given name, creating a new node if no such
+ * node exists.
+ *
+ * @see llvm::Module::getOrInsertNamedMetadata()
+ */
+LLVMNamedMDNodeRef LLVMGetOrInsertNamedMetadata(LLVMModuleRef M,
+                                                const char *Name,
+                                                size_t NameLen);
+
+/**
+ * Retrieve the name of a NamedMDNode.
+ *
+ * @see llvm::NamedMDNode::getName()
+ */
+const char *LLVMGetNamedMetadataName(LLVMNamedMDNodeRef NamedMD,
+                                     size_t *NameLen);
+
+/**
  * Obtain the number of operands for named metadata in a module.
  *
  * @see llvm::Module::getNamedMetadata()
@@ -873,6 +952,44 @@ void LLVMAddNamedMetadataOperand(LLVMModuleRef M, const char *Name,
                                  LLVMValueRef Val);
 
 /**
+ * Return the directory of the debug location for this value, which must be
+ * an llvm::Instruction, llvm::GlobalVariable, or llvm::Function.
+ *
+ * @see llvm::Instruction::getDebugLoc()
+ * @see llvm::GlobalVariable::getDebugInfo()
+ * @see llvm::Function::getSubprogram()
+ */
+const char *LLVMGetDebugLocDirectory(LLVMValueRef Val, unsigned *Length);
+
+/**
+ * Return the filename of the debug location for this value, which must be
+ * an llvm::Instruction, llvm::GlobalVariable, or llvm::Function.
+ *
+ * @see llvm::Instruction::getDebugLoc()
+ * @see llvm::GlobalVariable::getDebugInfo()
+ * @see llvm::Function::getSubprogram()
+ */
+const char *LLVMGetDebugLocFilename(LLVMValueRef Val, unsigned *Length);
+
+/**
+ * Return the line number of the debug location for this value, which must be
+ * an llvm::Instruction, llvm::GlobalVariable, or llvm::Function.
+ *
+ * @see llvm::Instruction::getDebugLoc()
+ * @see llvm::GlobalVariable::getDebugInfo()
+ * @see llvm::Function::getSubprogram()
+ */
+unsigned LLVMGetDebugLocLine(LLVMValueRef Val);
+
+/**
+ * Return the column number of the debug location for this value, which must be
+ * an llvm::Instruction.
+ *
+ * @see llvm::Instruction::getDebugLoc()
+ */
+unsigned LLVMGetDebugLocColumn(LLVMValueRef Val);
+
+/**
  * Add a function to a module under a specified name.
  *
  * @see llvm::Function::Create()
@@ -1222,6 +1339,13 @@ LLVMBool LLVMIsPackedStruct(LLVMTypeRef StructTy);
 LLVMBool LLVMIsOpaqueStruct(LLVMTypeRef StructTy);
 
 /**
+ * Determine whether a structure is literal.
+ *
+ * @see llvm::StructType::isLiteral()
+ */
+LLVMBool LLVMIsLiteralStruct(LLVMTypeRef StructTy);
+
+/**
  * @}
  */
 
@@ -1408,6 +1532,7 @@ LLVMTypeRef LLVMX86MMXType(void);
       macro(ConstantVector)                 \
       macro(GlobalValue)                    \
         macro(GlobalAlias)                  \
+        macro(GlobalIFunc)                  \
         macro(GlobalObject)                 \
           macro(Function)                   \
           macro(GlobalVariable)             \
@@ -1417,7 +1542,9 @@ LLVMTypeRef LLVMX86MMXType(void);
       macro(CallInst)                       \
         macro(IntrinsicInst)                \
           macro(DbgInfoIntrinsic)           \
-            macro(DbgDeclareInst)           \
+            macro(DbgVariableIntrinsic)     \
+              macro(DbgDeclareInst)         \
+            macro(DbgLabelInst)             \
           macro(MemIntrinsic)               \
             macro(MemCpyInst)               \
             macro(MemMoveInst)              \
@@ -1434,16 +1561,15 @@ LLVMTypeRef LLVMX86MMXType(void);
       macro(SelectInst)                     \
       macro(ShuffleVectorInst)              \
       macro(StoreInst)                      \
-      macro(TerminatorInst)                 \
-        macro(BranchInst)                   \
-        macro(IndirectBrInst)               \
-        macro(InvokeInst)                   \
-        macro(ReturnInst)                   \
-        macro(SwitchInst)                   \
-        macro(UnreachableInst)              \
-        macro(ResumeInst)                   \
-        macro(CleanupReturnInst)            \
-        macro(CatchReturnInst)              \
+      macro(BranchInst)                     \
+      macro(IndirectBrInst)                 \
+      macro(InvokeInst)                     \
+      macro(ReturnInst)                     \
+      macro(SwitchInst)                     \
+      macro(UnreachableInst)                \
+      macro(ResumeInst)                     \
+      macro(CleanupReturnInst)              \
+      macro(CatchReturnInst)                \
       macro(FuncletPadInst)                 \
         macro(CatchPadInst)                 \
         macro(CleanupPadInst)               \
@@ -1959,9 +2085,14 @@ LLVMValueRef LLVMConstLShr(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
 LLVMValueRef LLVMConstAShr(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
 LLVMValueRef LLVMConstGEP(LLVMValueRef ConstantVal,
                           LLVMValueRef *ConstantIndices, unsigned NumIndices);
+LLVMValueRef LLVMConstGEP2(LLVMTypeRef Ty, LLVMValueRef ConstantVal,
+                           LLVMValueRef *ConstantIndices, unsigned NumIndices);
 LLVMValueRef LLVMConstInBoundsGEP(LLVMValueRef ConstantVal,
                                   LLVMValueRef *ConstantIndices,
                                   unsigned NumIndices);
+LLVMValueRef LLVMConstInBoundsGEP2(LLVMTypeRef Ty, LLVMValueRef ConstantVal,
+                                   LLVMValueRef *ConstantIndices,
+                                   unsigned NumIndices);
 LLVMValueRef LLVMConstTrunc(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
 LLVMValueRef LLVMConstSExt(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
 LLVMValueRef LLVMConstZExt(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
@@ -2037,6 +2168,14 @@ void LLVMSetDLLStorageClass(LLVMValueRef Global, LLVMDLLStorageClass Class);
 LLVMUnnamedAddr LLVMGetUnnamedAddress(LLVMValueRef Global);
 void LLVMSetUnnamedAddress(LLVMValueRef Global, LLVMUnnamedAddr UnnamedAddr);
 
+/**
+ * Returns the "value type" of a global value.  This differs from the formal
+ * type of a global value which is always a pointer type.
+ *
+ * @see llvm::GlobalValue::getValueType()
+ */
+LLVMTypeRef LLVMGlobalGetValueType(LLVMValueRef Global);
+
 /** Deprecated: Use LLVMGetUnnamedAddress instead. */
 LLVMBool LLVMHasUnnamedAddr(LLVMValueRef Global);
 /** Deprecated: Use LLVMSetUnnamedAddress instead. */
@@ -2068,6 +2207,58 @@ unsigned LLVMGetAlignment(LLVMValueRef V);
 void LLVMSetAlignment(LLVMValueRef V, unsigned Bytes);
 
 /**
+ * Sets a metadata attachment, erasing the existing metadata attachment if
+ * it already exists for the given kind.
+ *
+ * @see llvm::GlobalObject::setMetadata()
+ */
+void LLVMGlobalSetMetadata(LLVMValueRef Global, unsigned Kind,
+                           LLVMMetadataRef MD);
+
+/**
+ * Erases a metadata attachment of the given kind if it exists.
+ *
+ * @see llvm::GlobalObject::eraseMetadata()
+ */
+void LLVMGlobalEraseMetadata(LLVMValueRef Global, unsigned Kind);
+
+/**
+ * Removes all metadata attachments from this value.
+ *
+ * @see llvm::GlobalObject::clearMetadata()
+ */
+void LLVMGlobalClearMetadata(LLVMValueRef Global);
+
+/**
+ * Retrieves an array of metadata entries representing the metadata attached to
+ * this value. The caller is responsible for freeing this array by calling
+ * \c LLVMDisposeValueMetadataEntries.
+ *
+ * @see llvm::GlobalObject::getAllMetadata()
+ */
+LLVMValueMetadataEntry *LLVMGlobalCopyAllMetadata(LLVMValueRef Value,
+                                                  size_t *NumEntries);
+
+/**
+ * Destroys value metadata entries.
+ */
+void LLVMDisposeValueMetadataEntries(LLVMValueMetadataEntry *Entries);
+
+/**
+ * Returns the kind of a value metadata entry at a specific index.
+ */
+unsigned LLVMValueMetadataEntriesGetKind(LLVMValueMetadataEntry *Entries,
+                                         unsigned Index);
+
+/**
+ * Returns the underlying metadata node of a value metadata entry at a
+ * specific index.
+ */
+LLVMMetadataRef
+LLVMValueMetadataEntriesGetMetadata(LLVMValueMetadataEntry *Entries,
+                                    unsigned Index);
+
+/**
  * @}
  */
 
@@ -2218,6 +2409,54 @@ void LLVMSetPersonalityFn(LLVMValueRef Fn, LLVMValueRef PersonalityFn);
 unsigned LLVMGetIntrinsicID(LLVMValueRef Fn);
 
 /**
+ * Create or insert the declaration of an intrinsic.  For overloaded intrinsics,
+ * parameter types must be provided to uniquely identify an overload.
+ *
+ * @see llvm::Intrinsic::getDeclaration()
+ */
+LLVMValueRef LLVMGetIntrinsicDeclaration(LLVMModuleRef Mod,
+                                         unsigned ID,
+                                         LLVMTypeRef *ParamTypes,
+                                         size_t ParamCount);
+
+/**
+ * Retrieves the type of an intrinsic.  For overloaded intrinsics, parameter
+ * types must be provided to uniquely identify an overload.
+ *
+ * @see llvm::Intrinsic::getType()
+ */
+LLVMTypeRef LLVMIntrinsicGetType(LLVMContextRef Ctx, unsigned ID,
+                                 LLVMTypeRef *ParamTypes, size_t ParamCount);
+
+/**
+ * Retrieves the name of an intrinsic.
+ *
+ * @see llvm::Intrinsic::getName()
+ */
+const char *LLVMIntrinsicGetName(unsigned ID, size_t *NameLength);
+
+/**
+ * Copies the name of an overloaded intrinsic identified by a given list of
+ * parameter types.
+ *
+ * Unlike LLVMIntrinsicGetName, the caller is responsible for freeing the
+ * returned string.
+ *
+ * @see llvm::Intrinsic::getName()
+ */
+const char *LLVMIntrinsicCopyOverloadedName(unsigned ID,
+                                            LLVMTypeRef *ParamTypes,
+                                            size_t ParamCount,
+                                            size_t *NameLength);
+
+/**
+ * Obtain if the intrinsic identified by the given ID is overloaded.
+ *
+ * @see llvm::Intrinsic::isOverloaded()
+ */
+LLVMBool LLVMIntrinsicIsOverloaded(unsigned ID);
+
+/**
  * Obtain the calling function of a function.
  *
  * The returned value corresponds to the LLVMCallConv enumeration.
@@ -2514,7 +2753,7 @@ LLVMValueRef LLVMGetBasicBlockParent(LLVMBasicBlockRef BB);
  * If the basic block does not have a terminator (it is not well-formed
  * if it doesn't), then NULL is returned.
  *
- * The returned LLVMValueRef corresponds to a llvm::TerminatorInst.
+ * The returned LLVMValueRef corresponds to an llvm::Instruction.
  *
  * @see llvm::BasicBlock::getTerminator()
  */
@@ -2573,6 +2812,14 @@ LLVMBasicBlockRef LLVMGetPreviousBasicBlock(LLVMBasicBlockRef BB);
 LLVMBasicBlockRef LLVMGetEntryBasicBlock(LLVMValueRef Fn);
 
 /**
+ * Create a new basic block without inserting it into a function.
+ *
+ * @see llvm::BasicBlock::Create()
+ */
+LLVMBasicBlockRef LLVMCreateBasicBlockInContext(LLVMContextRef C,
+                                                const char *Name);
+
+/**
  * Append a basic block to the end of a function.
  *
  * @see llvm::BasicBlock::Create()
@@ -2695,6 +2942,16 @@ LLVMValueRef LLVMGetMetadata(LLVMValueRef Val, unsigned KindID);
 void LLVMSetMetadata(LLVMValueRef Val, unsigned KindID, LLVMValueRef Node);
 
 /**
+ * Returns the metadata associated with an instruction value, but filters out
+ * all the debug locations.
+ *
+ * @see llvm::Instruction::getAllMetadataOtherThanDebugLoc()
+ */
+LLVMValueMetadataEntry *
+LLVMInstructionGetAllMetadataOtherThanDebugLoc(LLVMValueRef Instr,
+                                               size_t *NumEntries);
+
+/**
  * Obtain the basic block to which an instruction belongs.
  *
  * @see llvm::Instruction::getParent()
@@ -2777,6 +3034,15 @@ LLVMRealPredicate LLVMGetFCmpPredicate(LLVMValueRef Inst);
 LLVMValueRef LLVMInstructionClone(LLVMValueRef Inst);
 
 /**
+ * Determine whether an instruction is a terminator. This routine is named to
+ * be compatible with historical functions that did this by querying the
+ * underlying C++ type.
+ *
+ * @see llvm::Instruction::isTerminator()
+ */
+LLVMValueRef LLVMIsATerminatorInst(LLVMValueRef Inst);
+
+/**
  * @defgroup LLVMCCoreValueInstructionCall Call Sites and Invocations
  *
  * Functions in this group apply to instructions that refer to call
@@ -2839,6 +3105,13 @@ void LLVMRemoveCallSiteStringAttribute(LLVMValueRef C, LLVMAttributeIndex Idx,
                                        const char *K, unsigned KLen);
 
 /**
+ * Obtain the function type called by this instruction.
+ *
+ * @see llvm::CallBase::getFunctionType()
+ */
+LLVMTypeRef LLVMGetCalledFunctionType(LLVMValueRef C);
+
+/**
  * Obtain the pointer to the function invoked by this instruction.
  *
  * This expects an LLVMValueRef that corresponds to a llvm::CallInst or
@@ -2916,8 +3189,8 @@ void LLVMSetUnwindDest(LLVMValueRef InvokeInst, LLVMBasicBlockRef B);
 /**
  * @defgroup LLVMCCoreValueInstructionTerminator Terminators
  *
- * Functions in this group only apply to instructions that map to
- * llvm::TerminatorInst instances.
+ * Functions in this group only apply to instructions for which
+ * LLVMIsATerminatorInst returns true.
  *
  * @{
  */
@@ -2925,21 +3198,21 @@ void LLVMSetUnwindDest(LLVMValueRef InvokeInst, LLVMBasicBlockRef B);
 /**
  * Return the number of successors that this terminator has.
  *
- * @see llvm::TerminatorInst::getNumSuccessors
+ * @see llvm::Instruction::getNumSuccessors
  */
 unsigned LLVMGetNumSuccessors(LLVMValueRef Term);
 
 /**
  * Return the specified successor.
  *
- * @see llvm::TerminatorInst::getSuccessor
+ * @see llvm::Instruction::getSuccessor
  */
 LLVMBasicBlockRef LLVMGetSuccessor(LLVMValueRef Term, unsigned i);
 
 /**
  * Update the specified successor to point at the provided block.
  *
- * @see llvm::TerminatorInst::setSuccessor
+ * @see llvm::Instruction::setSuccessor
  */
 void LLVMSetSuccessor(LLVMValueRef Term, unsigned i, LLVMBasicBlockRef block);
 
@@ -3130,10 +3403,16 @@ LLVMValueRef LLVMBuildSwitch(LLVMBuilderRef, LLVMValueRef V,
                              LLVMBasicBlockRef Else, unsigned NumCases);
 LLVMValueRef LLVMBuildIndirectBr(LLVMBuilderRef B, LLVMValueRef Addr,
                                  unsigned NumDests);
+// LLVMBuildInvoke is deprecated in favor of LLVMBuildInvoke2, in preparation
+// for opaque pointer types.
 LLVMValueRef LLVMBuildInvoke(LLVMBuilderRef, LLVMValueRef Fn,
                              LLVMValueRef *Args, unsigned NumArgs,
                              LLVMBasicBlockRef Then, LLVMBasicBlockRef Catch,
                              const char *Name);
+LLVMValueRef LLVMBuildInvoke2(LLVMBuilderRef, LLVMTypeRef Ty, LLVMValueRef Fn,
+                              LLVMValueRef *Args, unsigned NumArgs,
+                              LLVMBasicBlockRef Then, LLVMBasicBlockRef Catch,
+                              const char *Name);
 LLVMValueRef LLVMBuildUnreachable(LLVMBuilderRef);
 
 /* Exception Handling */
@@ -3290,13 +3569,48 @@ LLVMValueRef LLVMBuildNot(LLVMBuilderRef, LLVMValueRef V, const char *Name);
 LLVMValueRef LLVMBuildMalloc(LLVMBuilderRef, LLVMTypeRef Ty, const char *Name);
 LLVMValueRef LLVMBuildArrayMalloc(LLVMBuilderRef, LLVMTypeRef Ty,
                                   LLVMValueRef Val, const char *Name);
+
+/**
+ * Creates and inserts a memset to the specified pointer and the 
+ * specified value.
+ *
+ * @see llvm::IRRBuilder::CreateMemSet()
+ */
+LLVMValueRef LLVMBuildMemSet(LLVMBuilderRef B, LLVMValueRef Ptr,
+                             LLVMValueRef Val, LLVMValueRef Len,
+                             unsigned Align);
+/**
+ * Creates and inserts a memcpy between the specified pointers.
+ *
+ * @see llvm::IRRBuilder::CreateMemCpy()
+ */
+LLVMValueRef LLVMBuildMemCpy(LLVMBuilderRef B, 
+                             LLVMValueRef Dst, unsigned DstAlign,
+                             LLVMValueRef Src, unsigned SrcAlign,
+                             LLVMValueRef Size);
+/**
+ * Creates and inserts a memmove between the specified pointers.
+ *
+ * @see llvm::IRRBuilder::CreateMemMove()
+ */
+LLVMValueRef LLVMBuildMemMove(LLVMBuilderRef B, 
+                              LLVMValueRef Dst, unsigned DstAlign,
+                              LLVMValueRef Src, unsigned SrcAlign,
+                              LLVMValueRef Size);
+
 LLVMValueRef LLVMBuildAlloca(LLVMBuilderRef, LLVMTypeRef Ty, const char *Name);
 LLVMValueRef LLVMBuildArrayAlloca(LLVMBuilderRef, LLVMTypeRef Ty,
                                   LLVMValueRef Val, const char *Name);
 LLVMValueRef LLVMBuildFree(LLVMBuilderRef, LLVMValueRef PointerVal);
+// LLVMBuildLoad is deprecated in favor of LLVMBuildLoad2, in preparation for
+// opaque pointer types.
 LLVMValueRef LLVMBuildLoad(LLVMBuilderRef, LLVMValueRef PointerVal,
                            const char *Name);
+LLVMValueRef LLVMBuildLoad2(LLVMBuilderRef, LLVMTypeRef Ty,
+                            LLVMValueRef PointerVal, const char *Name);
 LLVMValueRef LLVMBuildStore(LLVMBuilderRef, LLVMValueRef Val, LLVMValueRef Ptr);
+// LLVMBuildGEP, LLVMBuildInBoundsGEP, and LLVMBuildStructGEP are deprecated in
+// favor of LLVMBuild*GEP2, in preparation for opaque pointer types.
 LLVMValueRef LLVMBuildGEP(LLVMBuilderRef B, LLVMValueRef Pointer,
                           LLVMValueRef *Indices, unsigned NumIndices,
                           const char *Name);
@@ -3305,6 +3619,15 @@ LLVMValueRef LLVMBuildInBoundsGEP(LLVMBuilderRef B, LLVMValueRef Pointer,
                                   const char *Name);
 LLVMValueRef LLVMBuildStructGEP(LLVMBuilderRef B, LLVMValueRef Pointer,
                                 unsigned Idx, const char *Name);
+LLVMValueRef LLVMBuildGEP2(LLVMBuilderRef B, LLVMTypeRef Ty,
+                           LLVMValueRef Pointer, LLVMValueRef *Indices,
+                           unsigned NumIndices, const char *Name);
+LLVMValueRef LLVMBuildInBoundsGEP2(LLVMBuilderRef B, LLVMTypeRef Ty,
+                                   LLVMValueRef Pointer, LLVMValueRef *Indices,
+                                   unsigned NumIndices, const char *Name);
+LLVMValueRef LLVMBuildStructGEP2(LLVMBuilderRef B, LLVMTypeRef Ty,
+                                 LLVMValueRef Pointer, unsigned Idx,
+                                 const char *Name);
 LLVMValueRef LLVMBuildGlobalString(LLVMBuilderRef B, const char *Str,
                                    const char *Name);
 LLVMValueRef LLVMBuildGlobalStringPtr(LLVMBuilderRef B, const char *Str,
@@ -3351,11 +3674,16 @@ LLVMValueRef LLVMBuildCast(LLVMBuilderRef B, LLVMOpcode Op, LLVMValueRef Val,
                            LLVMTypeRef DestTy, const char *Name);
 LLVMValueRef LLVMBuildPointerCast(LLVMBuilderRef, LLVMValueRef Val,
                                   LLVMTypeRef DestTy, const char *Name);
-LLVMValueRef LLVMBuildIntCast(LLVMBuilderRef, LLVMValueRef Val, /*Signed cast!*/
-                              LLVMTypeRef DestTy, const char *Name);
+LLVMValueRef LLVMBuildIntCast2(LLVMBuilderRef, LLVMValueRef Val,
+                               LLVMTypeRef DestTy, LLVMBool IsSigned,
+                               const char *Name);
 LLVMValueRef LLVMBuildFPCast(LLVMBuilderRef, LLVMValueRef Val,
                              LLVMTypeRef DestTy, const char *Name);
 
+/** Deprecated: This cast is always signed. Use LLVMBuildIntCast2 instead. */
+LLVMValueRef LLVMBuildIntCast(LLVMBuilderRef, LLVMValueRef Val, /*Signed cast!*/
+                              LLVMTypeRef DestTy, const char *Name);
+
 /* Comparisons */
 LLVMValueRef LLVMBuildICmp(LLVMBuilderRef, LLVMIntPredicate Op,
                            LLVMValueRef LHS, LLVMValueRef RHS,
@@ -3366,9 +3694,14 @@ LLVMValueRef LLVMBuildFCmp(LLVMBuilderRef, LLVMRealPredicate Op,
 
 /* Miscellaneous instructions */
 LLVMValueRef LLVMBuildPhi(LLVMBuilderRef, LLVMTypeRef Ty, const char *Name);
+// LLVMBuildCall is deprecated in favor of LLVMBuildCall2, in preparation for
+// opaque pointer types.
 LLVMValueRef LLVMBuildCall(LLVMBuilderRef, LLVMValueRef Fn,
                            LLVMValueRef *Args, unsigned NumArgs,
                            const char *Name);
+LLVMValueRef LLVMBuildCall2(LLVMBuilderRef, LLVMTypeRef, LLVMValueRef Fn,
+                            LLVMValueRef *Args, unsigned NumArgs,
+                            const char *Name);
 LLVMValueRef LLVMBuildSelect(LLVMBuilderRef, LLVMValueRef If,
                              LLVMValueRef Then, LLVMValueRef Else,
                              const char *Name);
diff --git a/gnu/llvm/include/llvm-c/DebugInfo.h b/gnu/llvm/include/llvm-c/DebugInfo.h
index cee6755f187..87a72034b0e 100644
--- a/gnu/llvm/include/llvm-c/DebugInfo.h
+++ b/gnu/llvm/include/llvm-c/DebugInfo.h
@@ -54,9 +54,12 @@ typedef enum {
   LLVMDIFlagMainSubprogram = 1 << 21,
   LLVMDIFlagTypePassByValue = 1 << 22,
   LLVMDIFlagTypePassByReference = 1 << 23,
-  LLVMDIFlagFixedEnum = 1 << 24,
+  LLVMDIFlagEnumClass = 1 << 24,
+  LLVMDIFlagFixedEnum = LLVMDIFlagEnumClass, // Deprecated.
   LLVMDIFlagThunk = 1 << 25,
   LLVMDIFlagTrivial = 1 << 26,
+  LLVMDIFlagBigEndian = 1 << 27,
+  LLVMDIFlagLittleEndian = 1 << 28,
   LLVMDIFlagIndirectVirtualBase = (1 << 2) | (1 << 5),
   LLVMDIFlagAccessibility = LLVMDIFlagPrivate | LLVMDIFlagProtected |
                             LLVMDIFlagPublic,
@@ -125,6 +128,44 @@ typedef enum {
 } LLVMDWARFEmissionKind;
 
 /**
+ * The kind of metadata nodes.
+ */
+enum {
+  LLVMMDStringMetadataKind,
+  LLVMConstantAsMetadataMetadataKind,
+  LLVMLocalAsMetadataMetadataKind,
+  LLVMDistinctMDOperandPlaceholderMetadataKind,
+  LLVMMDTupleMetadataKind,
+  LLVMDILocationMetadataKind,
+  LLVMDIExpressionMetadataKind,
+  LLVMDIGlobalVariableExpressionMetadataKind,
+  LLVMGenericDINodeMetadataKind,
+  LLVMDISubrangeMetadataKind,
+  LLVMDIEnumeratorMetadataKind,
+  LLVMDIBasicTypeMetadataKind,
+  LLVMDIDerivedTypeMetadataKind,
+  LLVMDICompositeTypeMetadataKind,
+  LLVMDISubroutineTypeMetadataKind,
+  LLVMDIFileMetadataKind,
+  LLVMDICompileUnitMetadataKind,
+  LLVMDISubprogramMetadataKind,
+  LLVMDILexicalBlockMetadataKind,
+  LLVMDILexicalBlockFileMetadataKind,
+  LLVMDINamespaceMetadataKind,
+  LLVMDIModuleMetadataKind,
+  LLVMDITemplateTypeParameterMetadataKind,
+  LLVMDITemplateValueParameterMetadataKind,
+  LLVMDIGlobalVariableMetadataKind,
+  LLVMDILocalVariableMetadataKind,
+  LLVMDILabelMetadataKind,
+  LLVMDIObjCPropertyMetadataKind,
+  LLVMDIImportedEntityMetadataKind,
+  LLVMDIMacroMetadataKind,
+  LLVMDIMacroFileMetadataKind
+};
+typedef unsigned LLVMMetadataKind;
+
+/**
  * An LLVM DWARF type encoding.
  */
 typedef unsigned LLVMDWARFTypeEncoding;
@@ -531,11 +572,13 @@ LLVMDIBuilderCreateUnspecifiedType(LLVMDIBuilderRef Builder, const char *Name,
  * \param NameLen     Length of type name.
  * \param SizeInBits  Size of the type.
  * \param Encoding    DWARF encoding code, e.g. \c LLVMDWARFTypeEncoding_float.
+ * \param Flags       Flags to encode optional attribute like endianity
  */
 LLVMMetadataRef
 LLVMDIBuilderCreateBasicType(LLVMDIBuilderRef Builder, const char *Name,
                              size_t NameLen, uint64_t SizeInBits,
-                             LLVMDWARFTypeEncoding Encoding);
+                             LLVMDWARFTypeEncoding Encoding,
+                             LLVMDIFlags Flags);
 
 /**
  * Create debugging information entry for a pointer.
@@ -965,21 +1008,15 @@ LLVMDIBuilderCreateConstantValueExpression(LLVMDIBuilderRef Builder,
  * \param Expr        The location of the global relative to the attached
  *                    GlobalVariable.
  * \param Decl        Reference to the corresponding declaration.
+ *                    variables.
  * \param AlignInBits Variable alignment(or 0 if no alignment attr was
  *                    specified)
  */
-LLVMMetadataRef
-LLVMDIBuilderCreateGlobalVariableExpression(LLVMDIBuilderRef Builder,
-                                            LLVMMetadataRef Scope,
-                                            const char *Name, size_t NameLen,
-                                            const char *Linkage, size_t LinkLen,
-                                            LLVMMetadataRef File,
-                                            unsigned LineNo,
-                                            LLVMMetadataRef Ty,
-                                            LLVMBool LocalToUnit,
-                                            LLVMMetadataRef Expr,
-                                            LLVMMetadataRef Decl,
-                                            uint32_t AlignInBits);
+LLVMMetadataRef LLVMDIBuilderCreateGlobalVariableExpression(
+    LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
+    size_t NameLen, const char *Linkage, size_t LinkLen, LLVMMetadataRef File,
+    unsigned LineNo, LLVMMetadataRef Ty, LLVMBool LocalToUnit,
+    LLVMMetadataRef Expr, LLVMMetadataRef Decl, uint32_t AlignInBits);
 /**
  * Create a new temporary \c MDNode.  Suitable for use in constructing cyclic
  * \c MDNode structures. A temporary \c MDNode is not uniqued, may be RAUW'd,
@@ -1025,17 +1062,11 @@ void LLVMMetadataReplaceAllUsesWith(LLVMMetadataRef TempTargetMetadata,
  * \param AlignInBits Variable alignment(or 0 if no alignment attr was
  *                    specified)
  */
-LLVMMetadataRef
-LLVMDIBuilderCreateTempGlobalVariableFwdDecl(LLVMDIBuilderRef Builder,
-                                             LLVMMetadataRef Scope,
-                                             const char *Name, size_t NameLen,
-                                             const char *Linkage, size_t LnkLen,
-                                             LLVMMetadataRef File,
-                                             unsigned LineNo,
-                                             LLVMMetadataRef Ty,
-                                             LLVMBool LocalToUnit,
-                                             LLVMMetadataRef Decl,
-                                             uint32_t AlignInBits);
+LLVMMetadataRef LLVMDIBuilderCreateTempGlobalVariableFwdDecl(
+    LLVMDIBuilderRef Builder, LLVMMetadataRef Scope, const char *Name,
+    size_t NameLen, const char *Linkage, size_t LnkLen, LLVMMetadataRef File,
+    unsigned LineNo, LLVMMetadataRef Ty, LLVMBool LocalToUnit,
+    LLVMMetadataRef Decl, uint32_t AlignInBits);
 
 /**
  * Insert a new llvm.dbg.declare intrinsic call before the given instruction.
@@ -1149,6 +1180,13 @@ LLVMMetadataRef LLVMGetSubprogram(LLVMValueRef Func);
  */
 void LLVMSetSubprogram(LLVMValueRef Func, LLVMMetadataRef SP);
 
+/**
+ * Obtain the enumerated type of a Metadata instance.
+ *
+ * @see llvm::Metadata::getMetadataID()
+ */
+LLVMMetadataKind LLVMGetMetadataKind(LLVMMetadataRef Metadata);
+
 #ifdef __cplusplus
 } /* end extern "C" */
 #endif
diff --git a/gnu/llvm/include/llvm-c/Error.h b/gnu/llvm/include/llvm-c/Error.h
new file mode 100644
index 00000000000..71e84661222
--- /dev/null
+++ b/gnu/llvm/include/llvm-c/Error.h
@@ -0,0 +1,69 @@
+/*===------- llvm-c/Error.h - llvm::Error class C Interface -------*- C -*-===*\
+|*                                                                            *|
+|*                     The LLVM Compiler Infrastructure                       *|
+|*                                                                            *|
+|* This file is distributed under the University of Illinois Open Source      *|
+|* License. See LICENSE.TXT for details.                                      *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* This file defines the C interface to LLVM's Error class.                   *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#ifndef LLVM_C_ERROR_H
+#define LLVM_C_ERROR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define LLVMErrorSuccess 0
+
+/**
+ * Opaque reference to an error instance. Null serves as the 'success' value.
+ */
+typedef struct LLVMOpaqueError *LLVMErrorRef;
+
+/**
+ * Error type identifier.
+ */
+typedef const void *LLVMErrorTypeId;
+
+/**
+ * Returns the type id for the given error instance, which must be a failure
+ * value (i.e. non-null).
+ */
+LLVMErrorTypeId LLVMGetErrorTypeId(LLVMErrorRef Err);
+
+/**
+ * Dispose of the given error without handling it. This operation consumes the
+ * error, and the given LLVMErrorRef value is not usable once this call returns.
+ * Note: This method *only* needs to be called if the error is not being passed
+ * to some other consuming operation, e.g. LLVMGetErrorMessage.
+ */
+void LLVMConsumeError(LLVMErrorRef Err);
+
+/**
+ * Returns the given string's error message. This operation consumes the error,
+ * and the given LLVMErrorRef value is not usable once this call returns.
+ * The caller is responsible for disposing of the string by calling
+ * LLVMDisposeErrorMessage.
+ */
+char *LLVMGetErrorMessage(LLVMErrorRef Err);
+
+/**
+ * Dispose of the given error message.
+ */
+void LLVMDisposeErrorMessage(char *ErrMsg);
+
+/**
+ * Returns the type id for llvm StringError.
+ */
+LLVMErrorTypeId LLVMGetStringErrorTypeId();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/gnu/llvm/include/llvm-c/ExecutionEngine.h b/gnu/llvm/include/llvm-c/ExecutionEngine.h
index 49ae6fee45f..e8ebef9ab15 100644
--- a/gnu/llvm/include/llvm-c/ExecutionEngine.h
+++ b/gnu/llvm/include/llvm-c/ExecutionEngine.h
@@ -186,7 +186,7 @@ void LLVMDisposeMCJITMemoryManager(LLVMMCJITMemoryManagerRef MM);
 
 LLVMJITEventListenerRef LLVMCreateGDBRegistrationListener(void);
 LLVMJITEventListenerRef LLVMCreateIntelJITEventListener(void);
-LLVMJITEventListenerRef LLVMCreateOprofileJITEventListener(void);
+LLVMJITEventListenerRef LLVMCreateOProfileJITEventListener(void);
 LLVMJITEventListenerRef LLVMCreatePerfJITEventListener(void);
 
 /**
diff --git a/gnu/llvm/include/llvm-c/OptRemarks.h b/gnu/llvm/include/llvm-c/OptRemarks.h
new file mode 100644
index 00000000000..6a90394e711
--- /dev/null
+++ b/gnu/llvm/include/llvm-c/OptRemarks.h
@@ -0,0 +1,204 @@
+/*===-- llvm-c/OptRemarks.h - OptRemarks Public C Interface -------*- C -*-===*\
+|*                                                                            *|
+|*                     The LLVM Compiler Infrastructure                       *|
+|*                                                                            *|
+|* This file is distributed under the University of Illinois Open Source      *|
+|* License. See LICENSE.TXT for details.                                      *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* This header provides a public interface to an opt-remark library.          *|
+|* LLVM provides an implementation of this interface.                         *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#ifndef LLVM_C_OPT_REMARKS_H
+#define LLVM_C_OPT_REMARKS_H
+
+#include "llvm-c/Core.h"
+#include "llvm-c/Types.h"
+#ifdef __cplusplus
+#include <cstddef>
+extern "C" {
+#else
+#include <stddef.h>
+#endif /* !defined(__cplusplus) */
+
+/**
+ * @defgroup LLVMCOPTREMARKS OptRemarks
+ * @ingroup LLVMC
+ *
+ * @{
+ */
+
+#define OPT_REMARKS_API_VERSION 0
+
+/**
+ * String containing a buffer and a length. The buffer is not guaranteed to be
+ * zero-terminated.
+ *
+ * \since OPT_REMARKS_API_VERSION=0
+ */
+typedef struct {
+  const char *Str;
+  uint32_t Len;
+} LLVMOptRemarkStringRef;
+
+/**
+ * DebugLoc containing File, Line and Column.
+ *
+ * \since OPT_REMARKS_API_VERSION=0
+ */
+typedef struct {
+  // File:
+  LLVMOptRemarkStringRef SourceFile;
+  // Line:
+  uint32_t SourceLineNumber;
+  // Column:
+  uint32_t SourceColumnNumber;
+} LLVMOptRemarkDebugLoc;
+
+/**
+ * Element of the "Args" list. The key might give more information about what
+ * are the semantics of the value, e.g. "Callee" will tell you that the value
+ * is a symbol that names a function.
+ *
+ * \since OPT_REMARKS_API_VERSION=0
+ */
+typedef struct {
+  // e.g. "Callee"
+  LLVMOptRemarkStringRef Key;
+  // e.g. "malloc"
+  LLVMOptRemarkStringRef Value;
+
+  // "DebugLoc": Optional
+  LLVMOptRemarkDebugLoc DebugLoc;
+} LLVMOptRemarkArg;
+
+/**
+ * One remark entry.
+ *
+ * \since OPT_REMARKS_API_VERSION=0
+ */
+typedef struct {
+  // e.g. !Missed, !Passed
+  LLVMOptRemarkStringRef RemarkType;
+  // "Pass": Required
+  LLVMOptRemarkStringRef PassName;
+  // "Name": Required
+  LLVMOptRemarkStringRef RemarkName;
+  // "Function": Required
+  LLVMOptRemarkStringRef FunctionName;
+
+  // "DebugLoc": Optional
+  LLVMOptRemarkDebugLoc DebugLoc;
+  // "Hotness": Optional
+  uint32_t Hotness;
+  // "Args": Optional. It is an array of `num_args` elements.
+  uint32_t NumArgs;
+  LLVMOptRemarkArg *Args;
+} LLVMOptRemarkEntry;
+
+typedef struct LLVMOptRemarkOpaqueParser *LLVMOptRemarkParserRef;
+
+/**
+ * Creates a remark parser that can be used to read and parse the buffer located
+ * in \p Buf of size \p Size.
+ *
+ * \p Buf cannot be NULL.
+ *
+ * This function should be paired with LLVMOptRemarkParserDispose() to avoid
+ * leaking resources.
+ *
+ * \since OPT_REMARKS_API_VERSION=0
+ */
+extern LLVMOptRemarkParserRef LLVMOptRemarkParserCreate(const void *Buf,
+                                                        uint64_t Size);
+
+/**
+ * Returns the next remark in the file.
+ *
+ * The value pointed to by the return value is invalidated by the next call to
+ * LLVMOptRemarkParserGetNext().
+ *
+ * If the parser reaches the end of the buffer, the return value will be NULL.
+ *
+ * In the case of an error, the return value will be NULL, and:
+ *
+ * 1) LLVMOptRemarkParserHasError() will return `1`.
+ *
+ * 2) LLVMOptRemarkParserGetErrorMessage() will return a descriptive error
+ *    message.
+ *
+ * An error may occur if:
+ *
+ * 1) An argument is invalid.
+ *
+ * 2) There is a YAML parsing error. This type of error aborts parsing
+ *    immediately and returns `1`. It can occur on malformed YAML.
+ *
+ * 3) Remark parsing error. If this type of error occurs, the parser won't call
+ *    the handler and will continue to the next one. It can occur on malformed
+ *    remarks, like missing or extra fields in the file.
+ *
+ * Here is a quick example of the usage:
+ *
+ * ```
+ *  LLVMOptRemarkParserRef Parser = LLVMOptRemarkParserCreate(Buf, Size);
+ *  LLVMOptRemarkEntry *Remark = NULL;
+ *  while ((Remark == LLVMOptRemarkParserGetNext(Parser))) {
+ *    // use Remark
+ *  }
+ *  bool HasError = LLVMOptRemarkParserHasError(Parser);
+ *  LLVMOptRemarkParserDispose(Parser);
+ * ```
+ *
+ * \since OPT_REMARKS_API_VERSION=0
+ */
+extern LLVMOptRemarkEntry *
+LLVMOptRemarkParserGetNext(LLVMOptRemarkParserRef Parser);
+
+/**
+ * Returns `1` if the parser encountered an error while parsing the buffer.
+ *
+ * \since OPT_REMARKS_API_VERSION=0
+ */
+extern LLVMBool LLVMOptRemarkParserHasError(LLVMOptRemarkParserRef Parser);
+
+/**
+ * Returns a null-terminated string containing an error message.
+ *
+ * In case of no error, the result is `NULL`.
+ *
+ * The memory of the string is bound to the lifetime of \p Parser. If
+ * LLVMOptRemarkParserDispose() is called, the memory of the string will be
+ * released.
+ *
+ * \since OPT_REMARKS_API_VERSION=0
+ */
+extern const char *
+LLVMOptRemarkParserGetErrorMessage(LLVMOptRemarkParserRef Parser);
+
+/**
+ * Releases all the resources used by \p Parser.
+ *
+ * \since OPT_REMARKS_API_VERSION=0
+ */
+extern void LLVMOptRemarkParserDispose(LLVMOptRemarkParserRef Parser);
+
+/**
+ * Returns the version of the opt-remarks dylib.
+ *
+ * \since OPT_REMARKS_API_VERSION=0
+ */
+extern uint32_t LLVMOptRemarkVersion(void);
+
+/**
+ * @} // endgoup LLVMCOPTREMARKS
+ */
+
+#ifdef __cplusplus
+}
+#endif /* !defined(__cplusplus) */
+
+#endif /* LLVM_C_OPT_REMARKS_H */
diff --git a/gnu/llvm/include/llvm-c/OrcBindings.h b/gnu/llvm/include/llvm-c/OrcBindings.h
index 9497f0d4077..570db87fee9 100644
--- a/gnu/llvm/include/llvm-c/OrcBindings.h
+++ b/gnu/llvm/include/llvm-c/OrcBindings.h
@@ -22,6 +22,7 @@
 #ifndef LLVM_C_ORCBINDINGS_H
 #define LLVM_C_ORCBINDINGS_H
 
+#include "llvm-c/Error.h"
 #include "llvm-c/Object.h"
 #include "llvm-c/TargetMachine.h"
 
@@ -36,8 +37,6 @@ typedef uint64_t (*LLVMOrcSymbolResolverFn)(const char *Name, void *LookupCtx);
 typedef uint64_t (*LLVMOrcLazyCompileCallbackFn)(LLVMOrcJITStackRef JITStack,
                                                  void *CallbackCtx);
 
-typedef enum { LLVMOrcErrSuccess = 0, LLVMOrcErrGeneric } LLVMOrcErrorCode;
-
 /**
  * Create an ORC JIT stack.
  *
@@ -72,43 +71,41 @@ void LLVMOrcDisposeMangledSymbol(char *MangledSymbol);
 /**
  * Create a lazy compile callback.
  */
-LLVMOrcErrorCode
-LLVMOrcCreateLazyCompileCallback(LLVMOrcJITStackRef JITStack,
-                                 LLVMOrcTargetAddress *RetAddr,
-                                 LLVMOrcLazyCompileCallbackFn Callback,
-                                 void *CallbackCtx);
+LLVMErrorRef LLVMOrcCreateLazyCompileCallback(
+    LLVMOrcJITStackRef JITStack, LLVMOrcTargetAddress *RetAddr,
+    LLVMOrcLazyCompileCallbackFn Callback, void *CallbackCtx);
 
 /**
  * Create a named indirect call stub.
  */
-LLVMOrcErrorCode LLVMOrcCreateIndirectStub(LLVMOrcJITStackRef JITStack,
-                                           const char *StubName,
-                                           LLVMOrcTargetAddress InitAddr);
+LLVMErrorRef LLVMOrcCreateIndirectStub(LLVMOrcJITStackRef JITStack,
+                                       const char *StubName,
+                                       LLVMOrcTargetAddress InitAddr);
 
 /**
  * Set the pointer for the given indirect stub.
  */
-LLVMOrcErrorCode LLVMOrcSetIndirectStubPointer(LLVMOrcJITStackRef JITStack,
-                                               const char *StubName,
-                                               LLVMOrcTargetAddress NewAddr);
+LLVMErrorRef LLVMOrcSetIndirectStubPointer(LLVMOrcJITStackRef JITStack,
+                                           const char *StubName,
+                                           LLVMOrcTargetAddress NewAddr);
 
 /**
  * Add module to be eagerly compiled.
  */
-LLVMOrcErrorCode
-LLVMOrcAddEagerlyCompiledIR(LLVMOrcJITStackRef JITStack,
-                            LLVMOrcModuleHandle *RetHandle, LLVMModuleRef Mod,
-                            LLVMOrcSymbolResolverFn SymbolResolver,
-                            void *SymbolResolverCtx);
+LLVMErrorRef LLVMOrcAddEagerlyCompiledIR(LLVMOrcJITStackRef JITStack,
+                                         LLVMOrcModuleHandle *RetHandle,
+                                         LLVMModuleRef Mod,
+                                         LLVMOrcSymbolResolverFn SymbolResolver,
+                                         void *SymbolResolverCtx);
 
 /**
  * Add module to be lazily compiled one function at a time.
  */
-LLVMOrcErrorCode
-LLVMOrcAddLazilyCompiledIR(LLVMOrcJITStackRef JITStack,
-                           LLVMOrcModuleHandle *RetHandle, LLVMModuleRef Mod,
-                           LLVMOrcSymbolResolverFn SymbolResolver,
-                           void *SymbolResolverCtx);
+LLVMErrorRef LLVMOrcAddLazilyCompiledIR(LLVMOrcJITStackRef JITStack,
+                                        LLVMOrcModuleHandle *RetHandle,
+                                        LLVMModuleRef Mod,
+                                        LLVMOrcSymbolResolverFn SymbolResolver,
+                                        void *SymbolResolverCtx);
 
 /**
  * Add an object file.
@@ -118,11 +115,11 @@ LLVMOrcAddLazilyCompiledIR(LLVMOrcJITStackRef JITStack,
  * Clients should *not* dispose of the 'Obj' argument: the JIT will manage it
  * from this call onwards.
  */
-LLVMOrcErrorCode LLVMOrcAddObjectFile(LLVMOrcJITStackRef JITStack,
-                                      LLVMOrcModuleHandle *RetHandle,
-                                      LLVMMemoryBufferRef Obj,
-                                      LLVMOrcSymbolResolverFn SymbolResolver,
-                                      void *SymbolResolverCtx);
+LLVMErrorRef LLVMOrcAddObjectFile(LLVMOrcJITStackRef JITStack,
+                                  LLVMOrcModuleHandle *RetHandle,
+                                  LLVMMemoryBufferRef Obj,
+                                  LLVMOrcSymbolResolverFn SymbolResolver,
+                                  void *SymbolResolverCtx);
 
 /**
  * Remove a module set from the JIT.
@@ -130,29 +127,29 @@ LLVMOrcErrorCode LLVMOrcAddObjectFile(LLVMOrcJITStackRef JITStack,
  * This works for all modules that can be added via OrcAdd*, including object
  * files.
  */
-LLVMOrcErrorCode LLVMOrcRemoveModule(LLVMOrcJITStackRef JITStack,
-                                     LLVMOrcModuleHandle H);
+LLVMErrorRef LLVMOrcRemoveModule(LLVMOrcJITStackRef JITStack,
+                                 LLVMOrcModuleHandle H);
 
 /**
  * Get symbol address from JIT instance.
  */
-LLVMOrcErrorCode LLVMOrcGetSymbolAddress(LLVMOrcJITStackRef JITStack,
-                                         LLVMOrcTargetAddress *RetAddr,
-                                         const char *SymbolName);
+LLVMErrorRef LLVMOrcGetSymbolAddress(LLVMOrcJITStackRef JITStack,
+                                     LLVMOrcTargetAddress *RetAddr,
+                                     const char *SymbolName);
 
 /**
  * Get symbol address from JIT instance, searching only the specified
  * handle.
  */
-LLVMOrcErrorCode LLVMOrcGetSymbolAddressIn(LLVMOrcJITStackRef JITStack,
-                                           LLVMOrcTargetAddress *RetAddr,
-                                           LLVMOrcModuleHandle H,
-                                           const char *SymbolName);
+LLVMErrorRef LLVMOrcGetSymbolAddressIn(LLVMOrcJITStackRef JITStack,
+                                       LLVMOrcTargetAddress *RetAddr,
+                                       LLVMOrcModuleHandle H,
+                                       const char *SymbolName);
 
 /**
  * Dispose of an ORC JIT stack.
  */
-LLVMOrcErrorCode LLVMOrcDisposeInstance(LLVMOrcJITStackRef JITStack);
+LLVMErrorRef LLVMOrcDisposeInstance(LLVMOrcJITStackRef JITStack);
 
 /**
  * Register a JIT Event Listener.
diff --git a/gnu/llvm/include/llvm-c/TargetMachine.h b/gnu/llvm/include/llvm-c/TargetMachine.h
index 7f672b5d10d..c06e9edc9aa 100644
--- a/gnu/llvm/include/llvm-c/TargetMachine.h
+++ b/gnu/llvm/include/llvm-c/TargetMachine.h
@@ -39,12 +39,16 @@ typedef enum {
     LLVMRelocDefault,
     LLVMRelocStatic,
     LLVMRelocPIC,
-    LLVMRelocDynamicNoPic
+    LLVMRelocDynamicNoPic,
+    LLVMRelocROPI,
+    LLVMRelocRWPI,
+    LLVMRelocROPI_RWPI
 } LLVMRelocMode;
 
 typedef enum {
     LLVMCodeModelDefault,
     LLVMCodeModelJITDefault,
+    LLVMCodeModelTiny,
     LLVMCodeModelSmall,
     LLVMCodeModelKernel,
     LLVMCodeModelMedium,
diff --git a/gnu/llvm/include/llvm-c/Transforms/AggressiveInstCombine.h b/gnu/llvm/include/llvm-c/Transforms/AggressiveInstCombine.h
new file mode 100644
index 00000000000..8756a22e917
--- /dev/null
+++ b/gnu/llvm/include/llvm-c/Transforms/AggressiveInstCombine.h
@@ -0,0 +1,43 @@
+/*===-- AggressiveInstCombine.h ---------------------------------*- C++ -*-===*\
+|*                                                                            *|
+|*                     The LLVM Compiler Infrastructure                       *|
+|*                                                                            *|
+|* This file is distributed under the University of Illinois Open Source      *|
+|* License. See LICENSE.TXT for details.                                      *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* This header declares the C interface to libLLVMAggressiveInstCombine.a,    *|
+|* which combines instructions to form fewer, simple IR instructions.         *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#ifndef LLVM_C_TRANSFORMS_AGGRESSIVEINSTCOMBINE_H
+#define LLVM_C_TRANSFORMS_AGGRESSIVEINSTCOMBINE_H
+
+#include "llvm-c/Types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup LLVMCTransformsAggressiveInstCombine Aggressive Instruction Combining transformations
+ * @ingroup LLVMCTransforms
+ *
+ * @{
+ */
+
+/** See llvm::createAggressiveInstCombinerPass function. */
+void LLVMAddAggressiveInstCombinerPass(LLVMPassManagerRef PM);
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif /* defined(__cplusplus) */
+
+#endif
+
diff --git a/gnu/llvm/include/llvm-c/Transforms/Coroutines.h b/gnu/llvm/include/llvm-c/Transforms/Coroutines.h
new file mode 100644
index 00000000000..827e30fb2d7
--- /dev/null
+++ b/gnu/llvm/include/llvm-c/Transforms/Coroutines.h
@@ -0,0 +1,55 @@
+/*===-- Coroutines.h - Coroutines Library C Interface -----------*- C++ -*-===*\
+|*                                                                            *|
+|*                     The LLVM Compiler Infrastructure                       *|
+|*                                                                            *|
+|* This file is distributed under the University of Illinois Open Source      *|
+|* License. See LICENSE.TXT for details.                                      *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* This header declares the C interface to libLLVMCoroutines.a, which         *|
+|* implements various scalar transformations of the LLVM IR.                  *|
+|*                                                                            *|
+|* Many exotic languages can interoperate with C code but have a harder time  *|
+|* with C++ due to name mangling. So in addition to C, this interface enables *|
+|* tools written in such languages.                                           *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#ifndef LLVM_C_TRANSFORMS_COROUTINES_H
+#define LLVM_C_TRANSFORMS_COROUTINES_H
+
+#include "llvm-c/Types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup LLVMCTransformsCoroutines Coroutine transformations
+ * @ingroup LLVMCTransforms
+ *
+ * @{
+ */
+
+/** See llvm::createCoroEarlyPass function. */
+void LLVMAddCoroEarlyPass(LLVMPassManagerRef PM);
+
+/** See llvm::createCoroSplitPass function. */
+void LLVMAddCoroSplitPass(LLVMPassManagerRef PM);
+
+/** See llvm::createCoroElidePass function. */
+void LLVMAddCoroElidePass(LLVMPassManagerRef PM);
+
+/** See llvm::createCoroCleanupPass function. */
+void LLVMAddCoroCleanupPass(LLVMPassManagerRef PM);
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif /* defined(__cplusplus) */
+
+#endif
diff --git a/gnu/llvm/include/llvm-c/Transforms/Scalar.h b/gnu/llvm/include/llvm-c/Transforms/Scalar.h
index f55cdce86be..3c3bb4eb9b8 100644
--- a/gnu/llvm/include/llvm-c/Transforms/Scalar.h
+++ b/gnu/llvm/include/llvm-c/Transforms/Scalar.h
@@ -35,9 +35,6 @@ extern "C" {
 /** See llvm::createAggressiveDCEPass function. */
 void LLVMAddAggressiveDCEPass(LLVMPassManagerRef PM);
 
-/** See llvm::createAggressiveInstCombinerPass function. */
-void LLVMAddAggressiveInstCombinerPass(LLVMPassManagerRef PM);
-
 /** See llvm::createBitTrackingDCEPass function. */
 void LLVMAddBitTrackingDCEPass(LLVMPassManagerRef PM);
 
@@ -95,6 +92,9 @@ void LLVMAddLoopUnrollAndJamPass(LLVMPassManagerRef PM);
 /** See llvm::createLoopUnswitchPass function. */
 void LLVMAddLoopUnswitchPass(LLVMPassManagerRef PM);
 
+/** See llvm::createLowerAtomicPass function. */
+void LLVMAddLowerAtomicPass(LLVMPassManagerRef PM);
+
 /** See llvm::createMemCpyOptPass function. */
 void LLVMAddMemCpyOptPass(LLVMPassManagerRef PM);
 
@@ -153,6 +153,9 @@ void LLVMAddScopedNoAliasAAPass(LLVMPassManagerRef PM);
 /** See llvm::createBasicAliasAnalysisPass function */
 void LLVMAddBasicAliasAnalysisPass(LLVMPassManagerRef PM);
 
+/** See llvm::createUnifyFunctionExitNodesPass function */
+void LLVMAddUnifyFunctionExitNodesPass(LLVMPassManagerRef PM);
+
 /**
  * @}
  */
diff --git a/gnu/llvm/include/llvm-c/Types.h b/gnu/llvm/include/llvm-c/Types.h
index 4a33542e86c..ce1acf3e042 100644
--- a/gnu/llvm/include/llvm-c/Types.h
+++ b/gnu/llvm/include/llvm-c/Types.h
@@ -90,6 +90,20 @@ typedef struct LLVMOpaqueBasicBlock *LLVMBasicBlockRef;
 typedef struct LLVMOpaqueMetadata *LLVMMetadataRef;
 
 /**
+ * Represents an LLVM Named Metadata Node.
+ *
+ * This models llvm::NamedMDNode.
+ */
+typedef struct LLVMOpaqueNamedMDNode *LLVMNamedMDNodeRef;
+
+/**
+ * Represents an entry in a Global Object's metadata attachments.
+ *
+ * This models std::pair<unsigned, MDNode *>
+ */
+typedef struct LLVMOpaqueValueMetadataEntry LLVMValueMetadataEntry;
+
+/**
  * Represents an LLVM basic block builder.
  *
  * This models llvm::IRBuilder.
diff --git a/gnu/llvm/include/llvm-c/lto.h b/gnu/llvm/include/llvm-c/lto.h
index 1acd610f70a..090cd34af4e 100644
--- a/gnu/llvm/include/llvm-c/lto.h
+++ b/gnu/llvm/include/llvm-c/lto.h
@@ -44,7 +44,7 @@ typedef bool lto_bool_t;
  * @{
  */
 
-#define LTO_API_VERSION 22
+#define LTO_API_VERSION 23
 
 /**
  * \since prior to LTO_API_VERSION=3
@@ -828,6 +828,16 @@ extern void thinlto_codegen_set_cache_size_bytes(thinlto_code_gen_t cg,
                                                  unsigned max_size_bytes);
 
 /**
+ * Same as thinlto_codegen_set_cache_size_bytes, except the maximum size is in
+ * megabytes (2^20 bytes).
+ *
+ * \since LTO_API_VERSION=23
+ */
+extern void
+thinlto_codegen_set_cache_size_megabytes(thinlto_code_gen_t cg,
+                                         unsigned max_size_megabytes);
+
+/**
  * Sets the maximum number of files in the cache directory. An unspecified
  * default value will be applied. A value of 0 will be ignored.
  *