Update to LLVM 3.5a.

Change-Id: Ifadecab779f128e62e430c2b4f6ddd84953ed617

8 files changed, 225 insertions, 26 deletions

diff --git a/include/llvm-c/Core.h b/include/llvm-c/Core.h
index 9953d52..50c5e3a 100644
--- a/include/llvm-c/Core.h
+++ b/include/llvm-c/Core.h
@@ -15,7 +15,7 @@
 #ifndef LLVM_C_CORE_H
 #define LLVM_C_CORE_H
 
-#include "llvm/Support/DataTypes.h"
+#include "llvm-c/Support.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -62,8 +62,6 @@ extern "C" {
  * @{
  */
 
-typedef int LLVMBool;
-
 /* Opaque types. */
 
 /**
@@ -114,13 +112,6 @@ typedef struct LLVMOpaqueBuilder *LLVMBuilderRef;
  */
 typedef struct LLVMOpaqueModuleProvider *LLVMModuleProviderRef;
 
-/**
- * Used to provide a module to JIT or interpreter.
- *
- * @see llvm::MemoryBuffer
- */
-typedef struct LLVMOpaqueMemoryBuffer *LLVMMemoryBufferRef;
-
 /** @see llvm::PassManagerBase */
 typedef struct LLVMOpaquePassManager *LLVMPassManagerRef;
 
@@ -167,7 +158,8 @@ typedef enum {
     LLVMAddressSafety = 1ULL << 32,
     LLVMStackProtectStrongAttribute = 1ULL<<33,
     LLVMCold = 1ULL << 34,
-    LLVMOptimizeNone = 1ULL << 35
+    LLVMOptimizeNone = 1ULL << 35,
+    LLVMInAllocaAttribute = 1ULL << 36
     */
 } LLVMAttribute;
 
@@ -283,8 +275,8 @@ typedef enum {
   LLVMInternalLinkage,    /**< Rename collisions when linking (static
                                functions) */
   LLVMPrivateLinkage,     /**< Like Internal, but omit from symbol table */
-  LLVMDLLImportLinkage,   /**< Function to be imported from DLL */
-  LLVMDLLExportLinkage,   /**< Function to be accessible from DLL */
+  LLVMDLLImportLinkage,   /**< Obsolete */
+  LLVMDLLExportLinkage,   /**< Obsolete */
   LLVMExternalWeakLinkage,/**< ExternalWeak linkage description */
   LLVMGhostLinkage,       /**< Obsolete */
   LLVMCommonLinkage,      /**< Tentative definitions */
@@ -299,6 +291,12 @@ typedef enum {
 } LLVMVisibility;
 
 typedef enum {
+  LLVMDefaultStorageClass   = 0,
+  LLVMDLLImportStorageClass = 1, /**< Function to be imported from DLL. */
+  LLVMDLLExportStorageClass = 2  /**< Function to be accessible from DLL. */
+} LLVMDLLStorageClass;
+
+typedef enum {
   LLVMCCallConv           = 0,
   LLVMFastCallConv        = 8,
   LLVMColdCallConv        = 9,
@@ -1688,6 +1686,10 @@ const char *LLVMGetSection(LLVMValueRef Global);
 void LLVMSetSection(LLVMValueRef Global, const char *Section);
 LLVMVisibility LLVMGetVisibility(LLVMValueRef Global);
 void LLVMSetVisibility(LLVMValueRef Global, LLVMVisibility Viz);
+LLVMDLLStorageClass LLVMGetDLLStorageClass(LLVMValueRef Global);
+void LLVMSetDLLStorageClass(LLVMValueRef Global, LLVMDLLStorageClass Class);
+LLVMBool LLVMHasUnnamedAddr(LLVMValueRef Global);
+void LLVMSetUnnamedAddr(LLVMValueRef Global, LLVMBool HasUnnamedAddr);
 
 /**
  * @defgroup LLVMCCoreValueWithAlignment Values with alignment
@@ -1698,6 +1700,7 @@ void LLVMSetVisibility(LLVMValueRef Global, LLVMVisibility Viz);
 
 /**
  * Obtain the preferred alignment of the value.
+ * @see llvm::AllocaInst::getAlignment()
  * @see llvm::LoadInst::getAlignment()
  * @see llvm::StoreInst::getAlignment()
  * @see llvm::GlobalValue::getAlignment()
@@ -1706,6 +1709,7 @@ unsigned LLVMGetAlignment(LLVMValueRef V);
 
 /**
  * Set the preferred alignment of the value.
+ * @see llvm::AllocaInst::setAlignment()
  * @see llvm::LoadInst::setAlignment()
  * @see llvm::StoreInst::setAlignment()
  * @see llvm::GlobalValue::setAlignment()
@@ -2663,7 +2667,9 @@ LLVMValueRef LLVMBuildIsNotNull(LLVMBuilderRef, LLVMValueRef Val,
                                 const char *Name);
 LLVMValueRef LLVMBuildPtrDiff(LLVMBuilderRef, LLVMValueRef LHS,
                               LLVMValueRef RHS, const char *Name);
-LLVMValueRef LLVMBuildAtomicRMW(LLVMBuilderRef B,LLVMAtomicRMWBinOp op,
+LLVMValueRef LLVMBuildFence(LLVMBuilderRef B, LLVMAtomicOrdering ordering,
+                            LLVMBool singleThread, const char *Name);
+LLVMValueRef LLVMBuildAtomicRMW(LLVMBuilderRef B, LLVMAtomicRMWBinOp op,
                                 LLVMValueRef PTR, LLVMValueRef Val,
                                 LLVMAtomicOrdering ordering,
                                 LLVMBool singleThread);
diff --git a/include/llvm-c/Disassembler.h b/include/llvm-c/Disassembler.h
index 79bcfcd..8f31150 100644
--- a/include/llvm-c/Disassembler.h
+++ b/include/llvm-c/Disassembler.h
@@ -96,6 +96,16 @@ struct LLVMOpInfo1 {
 #define LLVMDisassembler_VariantKind_ARM_LO16 2 /* :lower16: */
 
 /**
+ * The ARM64 target VariantKinds.
+ */
+#define LLVMDisassembler_VariantKind_ARM64_PAGE       1 /* @page */
+#define LLVMDisassembler_VariantKind_ARM64_PAGEOFF    2 /* @pageoff */
+#define LLVMDisassembler_VariantKind_ARM64_GOTPAGE    3 /* @gotpage */
+#define LLVMDisassembler_VariantKind_ARM64_GOTPAGEOFF 4 /* @gotpageoff */
+#define LLVMDisassembler_VariantKind_ARM64_TLVP       5 /* @tvlppage */
+#define LLVMDisassembler_VariantKind_ARM64_TLVOFF     6 /* @tvlppageoff */
+
+/**
  * The type for the symbol lookup function.  This may be called by the
  * disassembler for things like adding a comment for a PC plus a constant
  * offset load instruction to use a symbol name instead of a load address value.
@@ -123,6 +133,17 @@ typedef const char *(*LLVMSymbolLookupCallback)(void *DisInfo,
 /* The input reference is from a PC relative load instruction. */
 #define LLVMDisassembler_ReferenceType_In_PCrel_Load 2
 
+/* The input reference is from an ARM64::ADRP instruction. */
+#define LLVMDisassembler_ReferenceType_In_ARM64_ADRP 0x100000001
+/* The input reference is from an ARM64::ADDXri instruction. */
+#define LLVMDisassembler_ReferenceType_In_ARM64_ADDXri 0x100000002
+/* The input reference is from an ARM64::LDRXui instruction. */
+#define LLVMDisassembler_ReferenceType_In_ARM64_LDRXui 0x100000003
+/* The input reference is from an ARM64::LDRXl instruction. */
+#define LLVMDisassembler_ReferenceType_In_ARM64_LDRXl 0x100000004
+/* The input reference is from an ARM64::ADR instruction. */
+#define LLVMDisassembler_ReferenceType_In_ARM64_ADR 0x100000005
+
 /* The output reference is to as symbol stub. */
 #define LLVMDisassembler_ReferenceType_Out_SymbolStub 1
 /* The output reference is to a symbol address in a literal pool. */
@@ -141,6 +162,9 @@ typedef const char *(*LLVMSymbolLookupCallback)(void *DisInfo,
 /* The output reference is to a Objective-C class ref. */
 #define LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref 8
 
+/* The output reference is to a C++ symbol name. */
+#define LLVMDisassembler_ReferenceType_DeMangled_Name 9
+
 #ifdef __cplusplus
 extern "C" {
 #endif /* !defined(__cplusplus) */
diff --git a/include/llvm-c/ExecutionEngine.h b/include/llvm-c/ExecutionEngine.h
index 3564312..7cdf0d7 100644
--- a/include/llvm-c/ExecutionEngine.h
+++ b/include/llvm-c/ExecutionEngine.h
@@ -163,6 +163,8 @@ void *LLVMRecompileAndRelinkFunction(LLVMExecutionEngineRef EE,
                                      LLVMValueRef Fn);
 
 LLVMTargetDataRef LLVMGetExecutionEngineTargetData(LLVMExecutionEngineRef EE);
+LLVMTargetMachineRef
+LLVMGetExecutionEngineTargetMachine(LLVMExecutionEngineRef EE);
 
 void LLVMAddGlobalMapping(LLVMExecutionEngineRef EE, LLVMValueRef Global,
                           void* Addr);
diff --git a/include/llvm-c/IRReader.h b/include/llvm-c/IRReader.h
index d0a23be..5001afb 100644
--- a/include/llvm-c/IRReader.h
+++ b/include/llvm-c/IRReader.h
@@ -24,7 +24,7 @@ extern "C" {
  * Read LLVM IR from a memory buffer and convert it into an in-memory Module
  * object. Returns 0 on success.
  * Optionally returns a human-readable description of any errors that
- * occured during parsing IR. OutMessage must be disposed with
+ * occurred during parsing IR. OutMessage must be disposed with
  * LLVMDisposeMessage.
  *
  * @see llvm::ParseIR()
diff --git a/include/llvm-c/Support.h b/include/llvm-c/Support.h
index 7f03ede..4e6ff22 100644
--- a/include/llvm-c/Support.h
+++ b/include/llvm-c/Support.h
@@ -14,13 +14,32 @@
 #ifndef LLVM_C_SUPPORT_H
 #define LLVM_C_SUPPORT_H
 
-#include "llvm-c/Core.h"
+#include "llvm/Support/DataTypes.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /**
+ * @defgroup LLVMCSupportTypes Types and Enumerations
+ *
+ * @{
+ */
+
+typedef int LLVMBool;
+
+/**
+ * Used to pass regions of memory through LLVM interfaces.
+ *
+ * @see llvm::MemoryBuffer
+ */
+typedef struct LLVMOpaqueMemoryBuffer *LLVMMemoryBufferRef;
+
+/**
+ * @}
+ */
+
+/**
  * This function permanently loads the dynamic library at the given path.
  * It is safe to call this function multiple times for the same library.
  *
diff --git a/include/llvm-c/TargetMachine.h b/include/llvm-c/TargetMachine.h
index e159411..d4993e7 100644
--- a/include/llvm-c/TargetMachine.h
+++ b/include/llvm-c/TargetMachine.h
@@ -62,7 +62,7 @@ LLVMTargetRef LLVMGetFirstTarget(void);
 LLVMTargetRef LLVMGetNextTarget(LLVMTargetRef T);
 
 /*===-- Target ------------------------------------------------------------===*/
-/** Finds the target corresponding to the given name and stores it in \p T. 
+/** Finds the target corresponding to the given name and stores it in \p T.
   Returns 0 on success. */
 LLVMTargetRef LLVMGetTargetFromName(const char *Name);
 
@@ -137,6 +137,9 @@ LLVMBool LLVMTargetMachineEmitToMemoryBuffer(LLVMTargetMachineRef T, LLVMModuleR
   disposed with LLVMDisposeMessage. */
 char* LLVMGetDefaultTargetTriple(void);
 
+/** Adds the target-specific analysis passes to the pass manager. */
+void LLVMAddAnalysisPasses(LLVMTargetMachineRef T, LLVMPassManagerRef PM);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/llvm-c/Transforms/Scalar.h b/include/llvm-c/Transforms/Scalar.h
index 355e8dc..9b820b2 100644
--- a/include/llvm-c/Transforms/Scalar.h
+++ b/include/llvm-c/Transforms/Scalar.h
@@ -41,6 +41,9 @@ void LLVMAddCFGSimplificationPass(LLVMPassManagerRef PM);
 /** See llvm::createDeadStoreEliminationPass function. */
 void LLVMAddDeadStoreEliminationPass(LLVMPassManagerRef PM);
 
+/** See llvm::createScalarizerPass function. */
+void LLVMAddScalarizerPass(LLVMPassManagerRef PM);
+
 /** See llvm::createGVNPass function. */
 void LLVMAddGVNPass(LLVMPassManagerRef PM);
 
diff --git a/include/llvm-c/lto.h b/include/llvm-c/lto.h
index 89f54b7..049c4d7 100644
--- a/include/llvm-c/lto.h
+++ b/include/llvm-c/lto.h
@@ -40,8 +40,11 @@ typedef bool lto_bool_t;
  * @{
  */
 
-#define LTO_API_VERSION 5
+#define LTO_API_VERSION 10
 
+/**
+ * \since prior to LTO_API_VERSION=3
+ */
 typedef enum {
     LTO_SYMBOL_ALIGNMENT_MASK              = 0x0000001F, /* log2 of alignment */
     LTO_SYMBOL_PERMISSIONS_MASK            = 0x000000E0,
@@ -62,18 +65,23 @@ typedef enum {
     LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN = 0x00002800
 } lto_symbol_attributes;
 
+/**
+ * \since prior to LTO_API_VERSION=3
+ */
 typedef enum {
     LTO_DEBUG_MODEL_NONE         = 0,
     LTO_DEBUG_MODEL_DWARF        = 1
 } lto_debug_model;
 
+/**
+ * \since prior to LTO_API_VERSION=3
+ */
 typedef enum {
     LTO_CODEGEN_PIC_MODEL_STATIC         = 0,
     LTO_CODEGEN_PIC_MODEL_DYNAMIC        = 1,
     LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC = 2
 } lto_codegen_model;
 
-
 /** opaque reference to a loaded object module */
 typedef struct LTOModule*         lto_module_t;
 
@@ -86,6 +94,8 @@ extern "C" {
 
 /**
  * Returns a printable string.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern const char*
 lto_get_version(void);
@@ -93,12 +103,16 @@ lto_get_version(void);
 
 /**
  * Returns the last error string or NULL if last operation was successful.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern const char*
 lto_get_error_message(void);
 
 /**
  * Checks if a file is a loadable object file.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern lto_bool_t
 lto_module_is_object_file(const char* path);
@@ -106,6 +120,8 @@ lto_module_is_object_file(const char* path);
 
 /**
  * Checks if a file is a loadable object compiled for requested target.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern lto_bool_t
 lto_module_is_object_file_for_target(const char* path,
@@ -114,6 +130,8 @@ lto_module_is_object_file_for_target(const char* path,
 
 /**
  * Checks if a buffer is a loadable object file.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern lto_bool_t
 lto_module_is_object_file_in_memory(const void* mem, size_t length);
@@ -121,6 +139,8 @@ lto_module_is_object_file_in_memory(const void* mem, size_t length);
 
 /**
  * Checks if a buffer is a loadable object compiled for requested target.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern lto_bool_t
 lto_module_is_object_file_in_memory_for_target(const void* mem, size_t length,
@@ -130,6 +150,8 @@ lto_module_is_object_file_in_memory_for_target(const void* mem, size_t length,
 /**
  * Loads an object file from disk.
  * Returns NULL on error (check lto_get_error_message() for details).
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern lto_module_t
 lto_module_create(const char* path);
@@ -138,13 +160,27 @@ lto_module_create(const char* path);
 /**
  * Loads an object file from memory.
  * Returns NULL on error (check lto_get_error_message() for details).
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern lto_module_t
 lto_module_create_from_memory(const void* mem, size_t length);
 
 /**
+ * Loads an object file from memory with an extra path argument.
+ * Returns NULL on error (check lto_get_error_message() for details).
+ *
+ * \since prior to LTO_API_VERSION=9
+ */
+extern lto_module_t
+lto_module_create_from_memory_with_path(const void* mem, size_t length,
+                                        const char *path);
+
+/**
  * Loads an object file from disk. The seek point of fd is not preserved.
  * Returns NULL on error (check lto_get_error_message() for details).
+ *
+ * \since LTO_API_VERSION=5
  */
 extern lto_module_t
 lto_module_create_from_fd(int fd, const char *path, size_t file_size);
@@ -152,28 +188,34 @@ lto_module_create_from_fd(int fd, const char *path, size_t file_size);
 /**
  * Loads an object file from disk. The seek point of fd is not preserved.
  * Returns NULL on error (check lto_get_error_message() for details).
+ *
+ * \since LTO_API_VERSION=5
  */
 extern lto_module_t
 lto_module_create_from_fd_at_offset(int fd, const char *path, size_t file_size,
                                     size_t map_size, off_t offset);
 
-
 /**
  * Frees all memory internally allocated by the module.
  * Upon return the lto_module_t is no longer valid.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern void
 lto_module_dispose(lto_module_t mod);
 
-
 /**
  * Returns triple string which the object module was compiled under.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern const char*
 lto_module_get_target_triple(lto_module_t mod);
 
 /**
  * Sets triple string with which the object will be codegened.
+ *
+ * \since LTO_API_VERSION=4
  */
 extern void
 lto_module_set_target_triple(lto_module_t mod, const char *triple);
@@ -181,6 +223,8 @@ lto_module_set_target_triple(lto_module_t mod, const char *triple);
 
 /**
  * Returns the number of symbols in the object module.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern unsigned int
 lto_module_get_num_symbols(lto_module_t mod);
@@ -188,6 +232,8 @@ lto_module_get_num_symbols(lto_module_t mod);
 
 /**
  * Returns the name of the ith symbol in the object module.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern const char*
 lto_module_get_symbol_name(lto_module_t mod, unsigned int index);
@@ -195,40 +241,116 @@ lto_module_get_symbol_name(lto_module_t mod, unsigned int index);
 
 /**
  * Returns the attributes of the ith symbol in the object module.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern lto_symbol_attributes
 lto_module_get_symbol_attribute(lto_module_t mod, unsigned int index);
 
 
 /**
+ * Returns the number of dependent libraries in the object module.
+ *
+ * \since LTO_API_VERSION=8
+ */
+extern unsigned int
+lto_module_get_num_deplibs(lto_module_t mod);
+
+
+/**
+ * Returns the ith dependent library in the module.
+ *
+ * \since LTO_API_VERSION=8
+ */
+extern const char*
+lto_module_get_deplib(lto_module_t mod, unsigned int index);
+
+
+/**
+ * Returns the number of linker options in the object module.
+ *
+ * \since LTO_API_VERSION=8
+ */
+extern unsigned int
+lto_module_get_num_linkeropts(lto_module_t mod);
+
+
+/**
+ * Returns the ith linker option in the module.
+ *
+ * \since LTO_API_VERSION=8
+ */
+extern const char*
+lto_module_get_linkeropt(lto_module_t mod, unsigned int index);
+
+
+/**
+ * Diagnostic severity.
+ *
+ * \since LTO_API_VERSION=7
+ */
+typedef enum {
+  LTO_DS_ERROR = 0,
+  LTO_DS_WARNING = 1,
+  LTO_DS_REMARK = 3, // Added in LTO_API_VERSION=10.
+  LTO_DS_NOTE = 2
+} lto_codegen_diagnostic_severity_t;
+
+/**
+ * Diagnostic handler type.
+ * \p severity defines the severity.
+ * \p diag is the actual diagnostic.
+ * The diagnostic is not prefixed by any of severity keyword, e.g., 'error: '.
+ * \p ctxt is used to pass the context set with the diagnostic handler.
+ *
+ * \since LTO_API_VERSION=7
+ */
+typedef void (*lto_diagnostic_handler_t)(
+    lto_codegen_diagnostic_severity_t severity, const char *diag, void *ctxt);
+
+/**
+ * Set a diagnostic handler and the related context (void *).
+ * This is more general than lto_get_error_message, as the diagnostic handler
+ * can be called at anytime within lto.
+ *
+ * \since LTO_API_VERSION=7
+ */
+extern void lto_codegen_set_diagnostic_handler(lto_code_gen_t,
+                                               lto_diagnostic_handler_t,
+                                               void *);
+
+/**
  * Instantiates a code generator.
  * Returns NULL on error (check lto_get_error_message() for details).
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern lto_code_gen_t
 lto_codegen_create(void);
 
-
 /**
  * Frees all code generator and all memory it internally allocated.
  * Upon return the lto_code_gen_t is no longer valid.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern void
 lto_codegen_dispose(lto_code_gen_t);
 
-
-
 /**
  * Add an object module to the set of modules for which code will be generated.
  * Returns true on error (check lto_get_error_message() for details).
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern lto_bool_t
 lto_codegen_add_module(lto_code_gen_t cg, lto_module_t mod);
 
-
-
 /**
  * Sets if debug info should be generated.
  * Returns true on error (check lto_get_error_message() for details).
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern lto_bool_t
 lto_codegen_set_debug_model(lto_code_gen_t cg, lto_debug_model);
@@ -237,6 +359,8 @@ lto_codegen_set_debug_model(lto_code_gen_t cg, lto_debug_model);
 /**
  * Sets which PIC code model to generated.
  * Returns true on error (check lto_get_error_message() for details).
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern lto_bool_t
 lto_codegen_set_pic_model(lto_code_gen_t cg, lto_codegen_model);
@@ -244,6 +368,8 @@ lto_codegen_set_pic_model(lto_code_gen_t cg, lto_codegen_model);
 
 /**
  * Sets the cpu to generate code for.
+ *
+ * \since LTO_API_VERSION=4
  */
 extern void
 lto_codegen_set_cpu(lto_code_gen_t cg, const char *cpu);
@@ -252,12 +378,16 @@ lto_codegen_set_cpu(lto_code_gen_t cg, const char *cpu);
 /**
  * Sets the location of the assembler tool to run. If not set, libLTO
  * will use gcc to invoke the assembler.
+ *
+ * \since LTO_API_VERSION=3
  */
 extern void
 lto_codegen_set_assembler_path(lto_code_gen_t cg, const char* path);
 
 /**
  * Sets extra arguments that libLTO should pass to the assembler.
+ *
+ * \since LTO_API_VERSION=4
  */
 extern void
 lto_codegen_set_assembler_args(lto_code_gen_t cg, const char **args,
@@ -266,6 +396,8 @@ lto_codegen_set_assembler_args(lto_code_gen_t cg, const char **args,
 /**
  * Tells LTO optimization passes that this symbol must be preserved
  * because it is referenced by native code or a command line option.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern void
 lto_codegen_add_must_preserve_symbol(lto_code_gen_t cg, const char* symbol);
@@ -274,6 +406,8 @@ lto_codegen_add_must_preserve_symbol(lto_code_gen_t cg, const char* symbol);
  * Writes a new object file at the specified path that contains the
  * merged contents of all modules added so far.
  * Returns true on error (check lto_get_error_message() for details).
+ *
+ * \since LTO_API_VERSION=5
  */
 extern lto_bool_t
 lto_codegen_write_merged_modules(lto_code_gen_t cg, const char* path);
@@ -285,6 +419,8 @@ lto_codegen_write_merged_modules(lto_code_gen_t cg, const char* path);
  * lto_code_gen_t and will be freed when lto_codegen_dispose()
  * is called, or lto_codegen_compile() is called again.
  * On failure, returns NULL (check lto_get_error_message() for details).
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern const void*
 lto_codegen_compile(lto_code_gen_t cg, size_t* length);
@@ -292,6 +428,8 @@ lto_codegen_compile(lto_code_gen_t cg, size_t* length);
 /**
  * Generates code for all added modules into one native object file.
  * The name of the file is written to name. Returns true on error.
+ *
+ * \since LTO_API_VERSION=5
  */
 extern lto_bool_t
 lto_codegen_compile_to_file(lto_code_gen_t cg, const char** name);
@@ -299,6 +437,8 @@ lto_codegen_compile_to_file(lto_code_gen_t cg, const char** name);
 
 /**
  * Sets options to help debug codegen bugs.
+ *
+ * \since prior to LTO_API_VERSION=3
  */
 extern void
 lto_codegen_debug_options(lto_code_gen_t cg, const char *);
@@ -306,6 +446,8 @@ lto_codegen_debug_options(lto_code_gen_t cg, const char *);
 /**
  * Initializes LLVM disassemblers.
  * FIXME: This doesn't really belong here.
+ *
+ * \since LTO_API_VERSION=5
  */
 extern void
 lto_initialize_disassembler(void);