[AIX] Emit version string in .file directive

AIX .file directive support including compiler version string.
https://www.ibm.com/docs/en/aix/7.2?topic=ops-file-pseudo-op

This patch adds the support so that it will be easier to identify build
compiler in objects.

Reviewed By: #powerpc, shchenz

Differential Revision: https://reviews.llvm.org/D105743

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/lib/MC/MCObjectStreamer.cpp b/llvm/lib/MC/MCObjectStreamer.cpp
index 4dae2f4..2865a2a 100644
--- a/llvm/lib/MC/MCObjectStreamer.cpp
+++ b/llvm/lib/MC/MCObjectStreamer.cpp
@@ -848,6 +848,14 @@ void MCObjectStreamer::emitFileDirective(StringRef Filename) {
   getAssembler().addFileName(Filename);
 }
 
+void MCObjectStreamer::emitFileDirective(StringRef Filename,
+                                         StringRef CompilerVerion,
+                                         StringRef TimeStamp,
+                                         StringRef Description) {
+  getAssembler().addFileName(Filename);
+  // TODO: add additional info to integrated assembler.
+}
+
 void MCObjectStreamer::emitAddrsig() {
   getAssembler().getWriter().emitAddrsigSection();
 }