Add implicit def / use operands to MachineInstr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31633 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 2 deletions

diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index a47293e048..ba75e73623 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -205,8 +205,12 @@ void MachineInstr::print(std::ostream &OS, const TargetMachine *TM) const {
     OS << " ";
     ::print(mop, OS, TM);
 
-    if (mop.isReg() && mop.isDef())
-      OS << "<def>";
+    if (mop.isReg()) {
+      if (mop.isImplicit())
+        OS << (mop.isDef() ? "<imp-def>" : "<imp-use>");
+      else if (mop.isDef())
+        OS << "<def>";
+    }
   }
 
   OS << "\n";