From: Julian Seward <jseward@acm.org>
Date: Sun, 16 Aug 2015 11:44:30 +0000 (+0000)
Subject: Implement PRFM (register).  Fixes #345177.
X-Git-Tag: svn/VALGRIND_3_11_0^2~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8ac16f795a21f535581c047d7100e3c30c168270;p=thirdparty%2Fvalgrind.git

Implement PRFM (register).  Fixes #345177.


git-svn-id: svn://svn.valgrind.org/vex/trunk@3174
---

diff --git a/VEX/priv/guest_arm64_toIR.c b/VEX/priv/guest_arm64_toIR.c
index 4768b896d3..39cb4f316b 100644
--- a/VEX/priv/guest_arm64_toIR.c
+++ b/VEX/priv/guest_arm64_toIR.c
@@ -6411,6 +6411,22 @@ Bool dis_ARM64_load_store(/*MB_OUT*/DisResult* dres, UInt insn)
       return True;
    }
 
+   /* ------------------ PRFM (register) ------------------ */
+   /* 31 29      22 20 15  12 11 9  4
+      11 1110001 01 Rm opt S  10 Rn Rt    PRFM pfrop=Rt, [Xn|SP, R<m>{ext/sh}]
+   */
+   if (INSN(31,21) == BITS11(1,1,1,1,1,0,0,0,1,0,1)
+       && INSN(11,10) == BITS2(1,0)) {
+      HChar  dis_buf[64];
+      UInt   tt = INSN(4,0);
+      IRTemp ea = gen_indexed_EA(dis_buf, insn, True/*to/from int regs*/);
+      if (ea != IRTemp_INVALID) {
+         /* No actual code to generate. */
+         DIP("prfm prfop=%u, %s\n", tt, dis_buf);
+         return True;
+      }
+   }
+
    vex_printf("ARM64 front end: load_store\n");
    return False;
 #  undef INSN