Imported Upstream version 7.9

[platform/upstream/gdb.git] / opcodes / aarch64-opc.c

diff --git a/opcodes/aarch64-opc.c b/opcodes/aarch64-opc.c
index be01ab3..5ea1384 100644 (file)
--- a/opcodes/aarch64-opc.c
+++ b/opcodes/aarch64-opc.c
@@ -1,5 +1,5 @@
 /* aarch64-opc.c -- AArch64 opcode support.
-   Copyright (C) 2009-2014 Free Software Foundation, Inc.
+   Copyright (C) 2009-2015 Free Software Foundation, Inc.
    Contributed by ARM Ltd.
 
    This file is part of the GNU opcodes library.
@@ -192,6 +192,7 @@ const aarch64_field fields[] =
     { 11,  1 },        /* index: in ld/st inst deciding the pre/post-index.  */
     { 24,  1 },        /* index2: in ld/st pair inst deciding the pre/post-index.  */
     { 31,  1 },        /* sf: in integer data processing instructions.  */
+    { 30,  1 },        /* lse_size: in LSE extension atomic instructions.  */
     { 11,  1 },        /* H: in advsimd scalar x indexed element instructions.  */
     { 21,  1 },        /* L: in advsimd scalar x indexed element instructions.  */
     { 20,  1 },        /* M: in advsimd scalar x indexed element instructions.  */
@@ -1254,6 +1255,25 @@ operand_general_constraint_met_p (const aarch64_opnd_info *opnds, int idx,
   switch (aarch64_operands[type].op_class)
     {
     case AARCH64_OPND_CLASS_INT_REG:
+      /* Check pair reg constraints for cas* instructions.  */
+      if (type == AARCH64_OPND_PAIRREG)
+       {
+         assert (idx == 1 || idx == 3);
+         if (opnds[idx - 1].reg.regno % 2 != 0)
+           {
+             set_syntax_error (mismatch_detail, idx - 1,
+                               _("reg pair must start from even reg"));
+             return 0;
+           }
+         if (opnds[idx].reg.regno != opnds[idx - 1].reg.regno + 1)
+           {
+             set_syntax_error (mismatch_detail, idx,
+                               _("reg pair must be contiguous"));
+             return 0;
+           }
+         break;
+       }
+
       /* <Xt> may be optional in some IC and TLBI instructions.  */
       if (type == AARCH64_OPND_Rt_SYS)
        {
@@ -2327,6 +2347,7 @@ aarch64_print_operand (char *buf, size_t size, bfd_vma pc,
     case AARCH64_OPND_Rs:
     case AARCH64_OPND_Ra:
     case AARCH64_OPND_Rt_SYS:
+    case AARCH64_OPND_PAIRREG:
       /* The optional-ness of <Xt> in e.g. IC <ic_op>{, <Xt>} is determined by
         the <ic_op>, therefore we we use opnd->present to override the
         generic optional-ness information.  */