Add option -mfence-as-lock-add=[no|yes].

[deliverable/binutils-gdb.git] / gas / ChangeLog

diff --git a/gas/ChangeLog b/gas/ChangeLog
index b210227fc030e9442a1e82251a3397d58201219a..a4bfa720c1e857679fc70c343136e8aea1ab894d 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,21 @@
+2016-01-29  Andrew Senkevich  <andrew.senkevich@intel.com>
+           H.J. Lu  <hongjiu.lu@intel.com>
+
+       * config/tc-i386.c (avoid_fence): New.
+       (output_insn): Encode as lock addl $0x0, (%{r,e}sp) if avoid_fence
+       is true.
+       (OPTION_FENCE_AS_LOCK_ADD): New.
+       (md_longopts): Add -mfence-as-lock-add.
+       (md_parse_option): Handle -mfence-as-lock-add.
+       (md_show_usage): Add -mfence-as-lock-add=[no|yes].
+       * doc/c-i386.texi (-mfence-as-lock-add): Document.
+       * gas/i386/i386.exp: Run new tests.
+       * gas/i386/fence-as-lock-add.s: New.
+       * gas/i386/fence-as-lock-add-yes.d: Likewise.
+       * gas/i386/fence-as-lock-add-no.d: Likewise.
+       * gas/i386/x86-64-fence-as-lock-add-yes.d: Likewise.
+       * gas/i386/x86-64-fence-as-lock-add-no.d: Likewise.
+
 2016-01-27  H.J. Lu  <hongjiu.lu@intel.com>
 
        * configure.ac (compressed_debug_sections): Remove trailing `]'.