From 53fbaeab29da70a4dd7318f7b5879817de2cbd61 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 5 Mar 2016 01:33:04 +0000
Subject: [PATCH] parse.y: optimize negate_lit

* parse.y (negate_lit): optimize bignum, rational, and complex
  negation.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54006 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 parse.y | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/parse.y b/parse.y
index 3c248d39ab..3b5f5f8ed8 100644
--- a/parse.y
+++ b/parse.y
@@ -10014,9 +10014,15 @@ negate_lit(VALUE lit)
 	lit = LONG2FIX(-FIX2LONG(lit));
 	break;
       case T_BIGNUM:
+	BIGNUM_NEGATE(lit);
+	lit = rb_big_norm(lit);
+	break;
       case T_RATIONAL:
+	RRATIONAL_SET_NUM(lit, negate_lit(RRATIONAL(lit)->num));
+	break;
       case T_COMPLEX:
-	lit = rb_funcallv(lit, tUMINUS, 0, 0);
+	RCOMPLEX_SET_REAL(lit, negate_lit(RCOMPLEX(lit)->real));
+	RCOMPLEX_SET_IMAG(lit, negate_lit(RCOMPLEX(lit)->imag));
 	break;
       case T_FLOAT:
 #if USE_FLONUM