Replace UNSPEC_STACK_CHECK with UNSPECV_SPLIT_STACK_RETURN.

2010-10-27  Ian Lance Taylor  <iant@google.com>

	PR target/46197
	* config/i386/i386.md (UNSPECV_SPLIT_STACK_RETURN): New.
	(split_stack_return): Replace UNSPEC_STACK_CHECK with
	UNSPECV_SPLIT_STACK_RETURN.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166001 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1e7dc32..6cb7cee 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2010-10-27  Ian Lance Taylor  <iant@google.com>
+
+       PR target/46197
+       * config/i386/i386.md (UNSPECV_SPLIT_STACK_RETURN): New.
+       (split_stack_return): Replace UNSPEC_STACK_CHECK with
+       UNSPECV_SPLIT_STACK_RETURN.
+

 2010-10-27  H.J. Lu  <hongjiu.lu@intel.com>
 
        * config/i386/i386-protos.h (init_cumulative_args): Add an int.
 2010-10-27  H.J. Lu  <hongjiu.lu@intel.com>
 
        * config/i386/i386-protos.h (init_cumulative_args): Add an int.

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 475e530..c6c3244 100644 (file)
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -261,6 +261,7 @@
   UNSPECV_WRFSBASE
   UNSPECV_WRGSBASE
   UNSPECV_RDRAND
   UNSPECV_WRFSBASE
   UNSPECV_WRGSBASE
   UNSPECV_RDRAND

+  UNSPECV_SPLIT_STACK_RETURN

 ])
 
 ;; Constants to represent pcomtrue/pcomfalse variants
 ])
 
 ;; Constants to represent pcomtrue/pcomfalse variants


@@ -11752,7 +11753,7 @@
 ;; instruction which the middle-end doesn't see.
 (define_insn "split_stack_return"
   [(unspec_volatile [(match_operand:SI 0 "const_int_operand" "")]
 ;; instruction which the middle-end doesn't see.
 (define_insn "split_stack_return"
   [(unspec_volatile [(match_operand:SI 0 "const_int_operand" "")]

-                   UNSPEC_STACK_CHECK)]
+                    UNSPECV_SPLIT_STACK_RETURN)]

   ""
 {
   if (operands[0] == const0_rtx)
   ""
 {
   if (operands[0] == const0_rtx)