From: Julian Seward <jseward@acm.org>
Date: Wed, 20 Oct 2004 23:42:56 +0000 (+0000)
Subject: Fast-track another case in calculate_eflags_c (needs verification).
X-Git-Tag: svn/VALGRIND_3_0_1^2~939
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1f767ea5e5410b98122010a00f256abf6a6bea1d;p=thirdparty%2Fvalgrind.git

Fast-track another case in calculate_eflags_c (needs verification).


git-svn-id: svn://svn.valgrind.org/vex/trunk@395
---

diff --git a/VEX/priv/guest-x86/ghelpers.c b/VEX/priv/guest-x86/ghelpers.c
index 66e63b5a93..a3d3d2dad3 100644
--- a/VEX/priv/guest-x86/ghelpers.c
+++ b/VEX/priv/guest-x86/ghelpers.c
@@ -498,6 +498,8 @@ static UInt calculate_eflags_c ( UInt cc_op, UInt cc_src, UInt cc_dst )
       return 0;
    if (cc_op == CC_OP_DECL)
       return cc_src;
+   if (cc_op == CC_OP_SUBL)
+      return ( ((UInt)cc_src) < ((UInt)cc_dst) ) & CC_MASK_C;
 
 #  if PROFILE_EFLAGS
    if (!initted)