From: Florian Krohm <florian@eich-krohm.de>
Date: Tue, 9 Dec 2014 20:09:42 +0000 (+0000)
Subject: Update x86 decoder as per advise from Julian.
X-Git-Tag: svn/VALGRIND_3_11_0^2~139
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d4c53bd7391fe11f8d077335c7df6062072c363;p=thirdparty%2Fvalgrind.git

Update x86 decoder as per advise from Julian.


git-svn-id: svn://svn.valgrind.org/vex/trunk@3035
---

diff --git a/VEX/priv/guest_x86_toIR.c b/VEX/priv/guest_x86_toIR.c
index 1defdcb467..be63fc49f3 100644
--- a/VEX/priv/guest_x86_toIR.c
+++ b/VEX/priv/guest_x86_toIR.c
@@ -11777,11 +11777,7 @@ DisResult disInstr_X86_WRK (
 
    /* Skip parts of the decoder which don't apply given the stated
       guest subarchitecture. */
-   /* if (0 == (archinfo->hwcaps & VEX_HWCAPS_X86_SSE3)) */
-   /* In fact this is highly bogus; we accept SSE3 insns even on a
-      SSE2-only guest since they turn into IR which can be re-emitted
-      successfully on an SSE2 host. */
-   if (0 == (archinfo->hwcaps & VEX_HWCAPS_X86_SSE2))
+   if (0 == (archinfo->hwcaps & VEX_HWCAPS_X86_SSE3))
       goto after_sse_decoders; /* no SSE3 capabilities */
 
    insn = &guest_code[delta];