Generate shorter instruction forms for constant in ia32 gap resolver.

Review URL: http://codereview.chromium.org//7277084

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8574 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ia32/lithium-gap-resolver-ia32.cc

@@ -305,8 +305,13 @@ void LGapResolver::EmitMove(int index) {
   } else if (source->IsConstantOperand()) {
     ASSERT(destination->IsRegister() || destination->IsStackSlot());
     Immediate src = cgen_->ToImmediate(source);
-    Operand dst = cgen_->ToOperand(destination);
-    __ mov(dst, src);
+    if (destination->IsRegister()) {
+      Register dst = cgen_->ToRegister(destination);
+      __ Set(dst, src);
+    } else {
+      Operand dst = cgen_->ToOperand(destination);
+      __ Set(dst, src);
+    }
 
   } else if (source->IsDoubleRegister()) {
     XMMRegister src = cgen_->ToDoubleRegister(source);