Don't leak the old operand when transforming "sldt" into "sldtw".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113200 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp
index e54edf2657669954d2abf7e08e0010d15e441589..1950c1da195ee39b0d33ffff06cbdccadc1eca99 100644 (file)
--- a/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -837,8 +837,10 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
   // effect (both store to a 16-bit mem).  Force to sldtw to avoid ambiguity
   // errors, since its encoding is the most compact.
   if (Name == "sldt" && Operands.size() == 2 &&
-      static_cast<X86Operand*>(Operands[1])->isMem())
+      static_cast<X86Operand*>(Operands[1])->isMem()) {
+    delete Operands[0];
     Operands[0] = X86Operand::CreateToken("sldtw", NameLoc);
+  }
 
   return false;
 }