add 'ret imm' instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21945 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index e956575efdaa3c5b3b4ce8b2b994870217a106e6..64dc14c169604e74615b76d501d0c7caa9fd6aad 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -152,9 +152,11 @@ let isTerminator = 1 in
 //  Control Flow Instructions...
 //
 
-// Return instruction...
+// Return instructions.
 let isTerminator = 1, isReturn = 1, isBarrier = 1 in
   def RET : I<0xC3, RawFrm, (ops), "ret">;
+let isTerminator = 1, isReturn = 1, isBarrier = 1 in
+  def RETI : Ii16<0xC2, RawFrm, (ops i16imm:$amt), "ret $amt">;
 
 // All branches are RawFrm, Void, Branch, and Terminators
 let isBranch = 1, isTerminator = 1 in