[PATCH] ppc: Fix record of HTM instructions

[Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com>]

Hi,
the patch below fixes the record support of Hardware Transactional Memory
instructions on Power. It also solves a large number of unexpected failures
from gdb.reverse testcases sigall-precsave.exp and sigall-reverse.exp that
occur on distros which glibc uses HTM instructions. Ok?

Thanks,
--
Edjunior

gdb/ChangeLog
2016-08-17  Edjunior Barbosa Machado  <emachado@linux.vnet.ibm.com>

	* rs6000-tdep.c (ppc_process_record_op31): Handle HTM instructions.
---
 gdb/rs6000-tdep.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index a616cbe..eb12c5d 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -4613,17 +4613,17 @@ ppc_process_record_op31 (struct gdbarch *gdbarch, struct regcache *regcache,
 
     case 654:		/* Transaction Begin */
     case 686:		/* Transaction End */
-    case 718:		/* Transaction Check */
     case 750:		/* Transaction Suspend or Resume */
     case 782:		/* Transaction Abort Word Conditional */
     case 814:		/* Transaction Abort Doubleword Conditional */
     case 846:		/* Transaction Abort Word Conditional Immediate */
     case 878:		/* Transaction Abort Doubleword Conditional Immediate */
     case 910:		/* Transaction Abort */
-      fprintf_unfiltered (gdb_stdlog, "Cannot record Transaction instructions. "
-			  "%08x at %s, 31-%d.\n",
-			  insn, paddress (gdbarch, addr), ext);
-      return -1;
+      record_full_arch_list_add_reg (regcache, tdep->ppc_ps_regnum);
+      /* FALL-THROUGH */
+    case 718:		/* Transaction Check */
+      record_full_arch_list_add_reg (regcache, tdep->ppc_cr_regnum);
+      return 0;
 
     case 1014:		/* Data Cache Block set to Zero */
       if (target_auxv_search (&current_target, AT_DCACHEBSIZE, &at_dcsz) <= 0
-- 
2.5.5