From: Petar Jovanovic <mips32r2@gmail.com>
Date: Mon, 25 Mar 2019 16:45:47 +0000 (+0000)
Subject: mips: add a comment about decoding LX on Cavium
X-Git-Tag: VALGRIND_3_15_0~39
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b93d378296c6d54d0eaee63eab4a9962c5e76167;p=thirdparty%2Fvalgrind.git

mips: add a comment about decoding LX on Cavium

Interpret LX as a Cavium instruction, otherwise try decoding it as a DSP
instruction.
The fallthrough is deliberate.

Related to KDE #405430.
---

diff --git a/VEX/priv/guest_mips_toIR.c b/VEX/priv/guest_mips_toIR.c
index e2eeb0a58e..d05816e28c 100644
--- a/VEX/priv/guest_mips_toIR.c
+++ b/VEX/priv/guest_mips_toIR.c
@@ -30206,6 +30206,7 @@ static DisResult disInstr_MIPS_WRK ( Bool(*resteerOkFn) (/*opaque */void *,
                break;
             goto decode_failure;
          }
+         /* fallthrough */
       case 0xC:  /* INSV */
       case 0x38: {  /* EXTR.W */
          if (VEX_MIPS_PROC_DSP(archinfo->hwcaps)) {