commit cd685e0ff55060e9ec341c86b23c6dbb2d3127f4

Author: tom <tom@8f6e269a-dfd6-0310-a8e1-e2731360e62c>

Date:   Sat Feb 11 10:44:29 2017 +0000

    Handle unknown HINT instructions on aarch64 by ignoring them. BZ#376279.

    git-svn-id: svn://svn.valgrind.org/vex/trunk@3302 8f6e269a-dfd6-0310-a8e1-e2731360e62c

diff --git a/VEX/priv/guest_arm64_toIR.c b/VEX/priv/guest_arm64_toIR.c

index e527447..484a26e 100644

--- a/VEX/priv/guest_arm64_toIR.c

+++ b/VEX/priv/guest_arm64_toIR.c

@@ -7022,6 +7022,19 @@ Bool dis_ARM64_branch_etc(/*MB_OUT*/DisResult* dres, UInt insn,

       return True;

    }

+   /* -------------------- HINT ------------------- */

+   /* 31        23        15   11   4 3

+      1101 0101 0000 0011 0010 imm7 1 1111

+   */

+   if (INSN(31,24) == BITS8(1,1,0,1,0,1,0,1)

+       && INSN(23,16) == BITS8(0,0,0,0,0,0,1,1)

+       && INSN(15,12) == BITS4(0,0,1,0)

+       && INSN(4,0) == BITS5(1,1,1,1,1)) {

+      UInt imm7 = INSN(11,5);

+      DIP("hint #%u\n", imm7);

+      return True;

+   }

+

    /* ------------------- CLREX ------------------ */

    /* 31        23        15   11 7

       1101 0101 0000 0011 0011 m  0101 1111  CLREX CRm