Allow memory operands for PTWRITE

The earlier PTWRITE builtin definition was unnecessarily restrictive,
only allowing register input to PTWRITE. The instruction actually
supports memory operands too, so allow that too.

gcc/:

2018-11-16  Andi Kleen  <ak@linux.intel.com>

	* config/i386/i386.md: Allow memory operands to ptwrite.

From-SVN: r266211

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 07cdcc75bd86cc68e8af91fb8ebdb6e83b489702..d842ae9fd9aed5b752b6a82ee9aaf40cbe5aaa76 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2018-11-16  Andi Kleen  <ak@linux.intel.com>
+
+       * config/i386/i386.md: Allow memory operands to ptwrite.
+
 2018-11-16  Michael Matz  <matz@suse.de>
 
        * system.h (PRsa): New macro.

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 44db8ac954cf5e2445c1c15b5debd853e8350634..9c359c0ca0433a412d120b45abc154d2bb06c274 100644 (file)
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -19501,7 +19501,7 @@
    (set_attr "prefix_extra" "2")])
 
 (define_insn "ptwrite<mode>"
-  [(unspec_volatile [(match_operand:SWI48 0 "register_operand" "r")]
+  [(unspec_volatile [(match_operand:SWI48 0 "nonimmediate_operand" "rm")]
                    UNSPECV_PTWRITE)]
   "TARGET_PTWRITE"
   "ptwrite\t%0"