[LLVM-C] Add LLVMDISubprogramGetLine accessor

[jberdine]

Summary

Addition to D60725, exposing DISubprogram::getLine().

[CodaFi]

LGTM

[jberdine]

Thanks! Note that I don't have write access, so could I ask you to commit this?

[CodaFi]

This patch doesn't apply cleanly to my checkout, so I'm going to fold it into D60725.

[jberdine]

Sounds good.

[jberdine]

Included in D60725

include/llvm-c/DebugInfo.h

  * Get the metadata of the file associated with a given scope.
  * \param Scope     The scope object.
  *
  * @see DIScope::getFile()
  */
 LLVMMetadataRef LLVMDIScopeGetFile(LLVMMetadataRef Scope);
 
 /**
+ * Get the line associated with a given subprogram.
+ * \param Subprogram     The subprogram object.
+ *
+ * @see DISubprogram::getLine()
+ */
+unsigned LLVMDISubprogramGetLine(LLVMMetadataRef Subprogram);
+
+/**
  * Get the directory of a given file.
  * \param Scope     The file object.
  * \param Len       The length of the returned string.
  *
  * @see DIFile::getDirectory()
  */
 const char *LLVMDIFileGetDirectory(LLVMMetadataRef File, unsigned *Len);
 

lib/IR/DebugInfo.cpp

 LLVMMetadataRef LLVMDILocationGetInlinedAt(LLVMMetadataRef Location) {
   return wrap(unwrapDI<DILocation>(Location)->getInlinedAt());
 }
 
 LLVMMetadataRef LLVMDIScopeGetFile(LLVMMetadataRef Scope) {
   return wrap(unwrapDI<DIScope>(Scope)->getFile());
 }
 
+unsigned LLVMDISubprogramGetLine(LLVMMetadataRef Subprogram) {
+  return unwrapDI<DISubprogram>(Subprogram)->getLine();
+}
+
 const char *LLVMDIFileGetDirectory(LLVMMetadataRef File, unsigned *Len) {
   auto Dir = unwrapDI<DIFile>(File)->getDirectory();
   *Len = Dir.size();
   return Dir.data();
 }
 
 const char *LLVMDIFileGetFilename(LLVMMetadataRef File, unsigned *Len) {
   auto Dir = unwrapDI<DIFile>(File)->getFilename();