commit bfc9061593307bf6b09106216445eacb1c5215d1
author Andrew V. Tischenko <andrew.v.tischenko@gmail.com> Mon Oct 16 11:14:29 2017 +0000
committer Andrew V. Tischenko <andrew.v.tischenko@gmail.com> Mon Oct 16 11:14:29 2017 +0000
tree b27f6f29da414fb794f53873cfb572758b7a2891
parent 6f60ff84cd2b27f801df4809099f211ee04399b1

This patch is a result of D37262: The issues with X86 prefixes. It closes  PR7709, PR17697, PR19251, PR32809 and PR21640. There could be other bugs closed by this patch.

llvm-svn: 315899

llvm/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp

diff --git a/llvm/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp b/llvm/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
index 7259387..464941a 100644
--- a/llvm/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
+++ b/llvm/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
@@ -43,6 +43,12 @@
   if (TSFlags & X86II::LOCK)
     OS << "\tlock\n";
 
+  unsigned Flags = MI->getFlags();
+  if (Flags & X86::IP_HAS_REPEAT_NE)
+    OS << "\trepne\n";
+  else if (Flags & X86::IP_HAS_REPEAT)
+    OS << "\trep\n";
+
   printInstruction(MI, OS);
 
   // Next always print the annotation.