[DWARFv5] MC support for MD5 file checksums

Extend .file directive syntax to allow specifying an MD5 checksum for
the source file.  Emit the checksums in DWARF v5 line tables.

llvm-svn: 322134

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/MC/MCContext.cpp b/llvm/lib/MC/MCContext.cpp
index 5c25e902bbe..ac2e45484ed 100644
--- a/llvm/lib/MC/MCContext.cpp
+++ b/llvm/lib/MC/MCContext.cpp
@@ -535,9 +535,10 @@ MCSubtargetInfo &MCContext::getSubtargetCopy(const MCSubtargetInfo &STI) {
 /// error and zero is returned and the client reports the error, else the
 /// allocated file number is returned.  The file numbers may be in any order.
 unsigned MCContext::getDwarfFile(StringRef Directory, StringRef FileName,
-                                 unsigned FileNumber, unsigned CUID) {
+                                 unsigned FileNumber, MD5::MD5Result *Checksum,
+                                 unsigned CUID) {
   MCDwarfLineTable &Table = MCDwarfLineTablesCUMap[CUID];
-  return Table.getFile(Directory, FileName, FileNumber);
+  return Table.getFile(Directory, FileName, Checksum, FileNumber);
 }
 
 /// isValidDwarfFileNumber - takes a dwarf file number and returns true if it