X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FIRReader%2FIRReader.cpp;h=5675e03585e541d8e9df13dad4427df0f974d2ff;hb=283c82abaaa85d032725cba11fb9ad05c9a9b060;hp=dff4c1fa43798a3cb5bd453e163d1d7c22814fde;hpb=7fc162f893d67ffd96fdb19e2eb9a03b4621f0c0;p=oota-llvm.git

diff --git a/lib/IRReader/IRReader.cpp b/lib/IRReader/IRReader.cpp
index dff4c1fa437..5675e03585e 100644
--- a/lib/IRReader/IRReader.cpp
+++ b/lib/IRReader/IRReader.cpp
@@ -8,71 +8,118 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/IRReader/IRReader.h"
-#include "llvm/ADT/OwningPtr.h"
-#include "llvm/Assembly/Parser.h"
+#include "llvm-c/Core.h"
+#include "llvm-c/IRReader.h"
+#include "llvm/AsmParser/Parser.h"
 #include "llvm/Bitcode/ReaderWriter.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/SourceMgr.h"
-#include "llvm/Support/system_error.h"
+#include "llvm/Support/Timer.h"
+#include "llvm/Support/raw_ostream.h"
+#include <system_error>
 
 using namespace llvm;
 
-Module *llvm::getLazyIRModule(MemoryBuffer *Buffer, SMDiagnostic &Err,
-                        LLVMContext &Context) {
+namespace llvm {
+  extern bool TimePassesIsEnabled;
+}
+
+static const char *const TimeIRParsingGroupName = "LLVM IR Parsing";
+static const char *const TimeIRParsingName = "Parse IR";
+
+static Module *getLazyIRModule(std::unique_ptr<MemoryBuffer> Buffer,
+                               SMDiagnostic &Err, LLVMContext &Context) {
   if (isBitcode((const unsigned char *)Buffer->getBufferStart(),
                 (const unsigned char *)Buffer->getBufferEnd())) {
     std::string ErrMsg;
-    Module *M = getLazyBitcodeModule(Buffer, Context, &ErrMsg);
-    if (M == 0) {
+    ErrorOr<Module *> ModuleOrErr = getLazyBitcodeModule(Buffer.get(), Context);
+    if (std::error_code EC = ModuleOrErr.getError()) {
       Err = SMDiagnostic(Buffer->getBufferIdentifier(), SourceMgr::DK_Error,
-                         ErrMsg);
-      // ParseBitcodeFile does not take ownership of the Buffer in the
-      // case of an error.
-      delete Buffer;
+                         EC.message());
+      return nullptr;
     }
-    return M;
+    // getLazyBitcodeModule takes ownership of the Buffer when successful.
+    Buffer.release();
+    return ModuleOrErr.get();
   }
 
-  return ParseAssembly(Buffer, 0, Err, Context);
+  return ParseAssembly(Buffer.release(), nullptr, Err, Context);
 }
 
-Module *llvm::getLazyIRFileModule(const std::string &Filename, SMDiagnostic &Err,
-                            LLVMContext &Context) {
-  OwningPtr<MemoryBuffer> File;
-  if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), File)) {
+Module *llvm::getLazyIRFileModule(const std::string &Filename,
+                                  SMDiagnostic &Err, LLVMContext &Context) {
+  ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+      MemoryBuffer::getFileOrSTDIN(Filename);
+  if (std::error_code EC = FileOrErr.getError()) {
     Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
-                       "Could not open input file: " + ec.message());
-    return 0;
+                       "Could not open input file: " + EC.message());
+    return nullptr;
   }
 
-  return getLazyIRModule(File.take(), Err, Context);
+  return getLazyIRModule(std::move(FileOrErr.get()), Err, Context);
 }
 
 Module *llvm::ParseIR(MemoryBuffer *Buffer, SMDiagnostic &Err,
                       LLVMContext &Context) {
+  NamedRegionTimer T(TimeIRParsingName, TimeIRParsingGroupName,
+                     TimePassesIsEnabled);
   if (isBitcode((const unsigned char *)Buffer->getBufferStart(),
                 (const unsigned char *)Buffer->getBufferEnd())) {
-    std::string ErrMsg;
-    Module *M = ParseBitcodeFile(Buffer, Context, &ErrMsg);
-    if (M == 0)
+    ErrorOr<Module *> ModuleOrErr = parseBitcodeFile(Buffer, Context);
+    Module *M = nullptr;
+    if (std::error_code EC = ModuleOrErr.getError())
       Err = SMDiagnostic(Buffer->getBufferIdentifier(), SourceMgr::DK_Error,
-                         ErrMsg);
-    // ParseBitcodeFile does not take ownership of the Buffer.
-    delete Buffer;
+                         EC.message());
+    else
+      M = ModuleOrErr.get();
+    // parseBitcodeFile does not take ownership of the Buffer.
     return M;
   }
 
-  return ParseAssembly(Buffer, 0, Err, Context);
+  return ParseAssembly(MemoryBuffer::getMemBuffer(
+                           Buffer->getBuffer(), Buffer->getBufferIdentifier()),
+                       nullptr, Err, Context);
 }
 
 Module *llvm::ParseIRFile(const std::string &Filename, SMDiagnostic &Err,
                           LLVMContext &Context) {
-  OwningPtr<MemoryBuffer> File;
-  if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), File)) {
+  ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+      MemoryBuffer::getFileOrSTDIN(Filename);
+  if (std::error_code EC = FileOrErr.getError()) {
     Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
-                       "Could not open input file: " + ec.message());
-    return 0;
+                       "Could not open input file: " + EC.message());
+    return nullptr;
+  }
+
+  return ParseIR(FileOrErr.get().get(), Err, Context);
+}
+
+//===----------------------------------------------------------------------===//
+// C API.
+//===----------------------------------------------------------------------===//
+
+LLVMBool LLVMParseIRInContext(LLVMContextRef ContextRef,
+                              LLVMMemoryBufferRef MemBuf, LLVMModuleRef *OutM,
+                              char **OutMessage) {
+  SMDiagnostic Diag;
+
+  std::unique_ptr<MemoryBuffer> MB(unwrap(MemBuf));
+  *OutM = wrap(ParseIR(MB.get(), Diag, *unwrap(ContextRef)));
+
+  if(!*OutM) {
+    if (OutMessage) {
+      std::string buf;
+      raw_string_ostream os(buf);
+
+      Diag.print(nullptr, os, false);
+      os.flush();
+
+      *OutMessage = strdup(buf.c_str());
+    }
+    return 1;
   }
 
-  return ParseIR(File.take(), Err, Context);
+  return 0;
 }