From: Julian Seward <jseward@acm.org>
Date: Mon, 11 Jul 2011 15:49:39 +0000 (+0000)
Subject: Tighten up an instruction decoding exception for
X-Git-Tag: svn/VALGRIND_3_7_0^2~51
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=79b172efc909256e5a4dfc751df7af5da1cb61df;p=thirdparty%2Fvalgrind.git

Tighten up an instruction decoding exception for
add.w reg, sp, #constT.


git-svn-id: svn://svn.valgrind.org/vex/trunk@2173
---

diff --git a/VEX/priv/guest_arm_toIR.c b/VEX/priv/guest_arm_toIR.c
index 5fdd1dd679..d9a3797bf2 100644
--- a/VEX/priv/guest_arm_toIR.c
+++ b/VEX/priv/guest_arm_toIR.c
@@ -16019,7 +16019,7 @@ DisResult disInstr_THUMB_WRK (
       UInt rD = INSN1(11,8);
       Bool valid = !isBadRegT(rN) && !isBadRegT(rD);
       /* but allow "add.w reg, sp, #constT" */ 
-      if (!valid && rN == 13)
+      if (!valid && rN == 13 && rD != 15)
          valid = True;
       if (valid) {
          IRTemp argL  = newTemp(Ity_I32);