Refactor common code from ParseAssemblyString and ParseAssemblyFile,

to expose a low-level interface for parsing from an existing MemoryBuffer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80803 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 21 insertions, 19 deletions

diff --git a/lib/AsmParser/Parser.cpp b/lib/AsmParser/Parser.cpp
index d66c13d39c..3fc913bf3f 100644
--- a/lib/AsmParser/Parser.cpp
+++ b/lib/AsmParser/Parser.cpp
@@ -21,6 +21,25 @@
 #include <cstring>
 using namespace llvm;
 
+Module *llvm::ParseAssembly(MemoryBuffer *F,
+                            const std::string &Name,
+                            Module *M,
+                            SMDiagnostic &Err,
+                            LLVMContext &Context) {
+  SourceMgr SM;
+  SM.AddNewSourceBuffer(F, SMLoc());
+
+  // If we are parsing into an existing module, do it.
+  if (M)
+    return LLParser(F, SM, Err, M).Run() ? 0 : M;
+
+  // Otherwise create a new module.
+  OwningPtr<Module> M2(new Module(Name, Context));
+  if (LLParser(F, SM, Err, M2.get()).Run())
+    return 0;
+  return M2.take();
+}
+
 Module *llvm::ParseAssemblyFile(const std::string &Filename, SMDiagnostic &Err,
                                 LLVMContext &Context) {
   std::string ErrorStr;
@@ -31,13 +50,7 @@ Module *llvm::ParseAssemblyFile(const std::string &Filename, SMDiagnostic &Err,
     return 0;
   }
 
-  SourceMgr SM;
-  SM.AddNewSourceBuffer(F, SMLoc());
-  
-  OwningPtr<Module> M(new Module(Filename, Context));
-  if (LLParser(F, SM, Err, M.get()).Run())
-    return 0;
-  return M.take();
+  return ParseAssembly(F, Filename, 0, Err, Context);
 }
 
 Module *llvm::ParseAssemblyString(const char *AsmString, Module *M,
@@ -45,17 +58,6 @@ Module *llvm::ParseAssemblyString(const char *AsmString, Module *M,
   MemoryBuffer *F =
     MemoryBuffer::getMemBuffer(AsmString, AsmString+strlen(AsmString),
                                "<string>");
-  
-  SourceMgr SM;
-  SM.AddNewSourceBuffer(F, SMLoc());
 
-  // If we are parsing into an existing module, do it.
-  if (M)
-    return LLParser(F, SM, Err, M).Run() ? 0 : M;
-
-  // Otherwise create a new module.
-  OwningPtr<Module> M2(new Module("<string>", Context));
-  if (LLParser(F, SM, Err, M2.get()).Run())
-    return 0;
-  return M2.take();
+  return ParseAssembly(F, "<string>", M, Err, Context);
 }