[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, 3 insertions, 0 deletions

diff --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp
index 2a1998f..fc7fb55 100644
--- a/llvm/lib/MC/MCStreamer.cpp
+++ b/llvm/lib/MC/MCStreamer.cpp
@@ -1147,6 +1147,9 @@ void MCStreamer::EndCOFFSymbolDef() {
   llvm_unreachable("this directive only supported on COFF targets");
 }
 void MCStreamer::emitFileDirective(StringRef Filename) {}
+void MCStreamer::emitFileDirective(StringRef Filename, StringRef CompilerVerion,
+                                   StringRef TimeStamp, StringRef Description) {
+}
 void MCStreamer::EmitCOFFSymbolStorageClass(int StorageClass) {
   llvm_unreachable("this directive only supported on COFF targets");
 }