From: Kito Cheng <kito@0xlab.org>
Date: Sun, 24 Aug 2014 02:52:46 +0000 (+0000)
Subject: Remove CALLER_SAVE_PROFITABLE since it is not used at present.
X-Git-Tag: releases/gcc-5.1.0~5187
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ef24330ddfb1206a90cf44bdda2d941abc05d5d3;p=thirdparty%2Fgcc.git

Remove CALLER_SAVE_PROFITABLE since it is not used at present.

	* system.h (CALLER_SAVE_PROFITABLE): Poison.
	* regs.h (CALLER_SAVE_PROFITABLE): Remove.
	* doc/tm.texi.in (CALLER_SAVE_PROFITABLE): Remove.
	* doc/tm.texi: Regenerate.

From-SVN: r214405
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 905e300e1018..d0ae1f83a0bb 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2014-08-24  Kito Cheng  <kito@0xlab.org>
+
+	* system.h (CALLER_SAVE_PROFITABLE): Poison.
+	* regs.h (CALLER_SAVE_PROFITABLE): Remove.
+	* doc/tm.texi.in (CALLER_SAVE_PROFITABLE): Remove.
+	* doc/tm.texi: Regenerate.
+
 2014-08-24  Kito Cheng  <kito@0xlab.org>
 
 	* ira.c: Fix typo in comment.
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 9dd8d68ddb9d..4d6492b01693 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -4528,16 +4528,6 @@ If you enable it, GCC can save registers around function calls.  This
 makes it possible to use call-clobbered registers to hold variables that
 must live across calls.
 
-@defmac CALLER_SAVE_PROFITABLE (@var{refs}, @var{calls})
-A C expression to determine whether it is worthwhile to consider placing
-a pseudo-register in a call-clobbered hard register and saving and
-restoring it around each function call.  The expression should be 1 when
-this is worth doing, and 0 otherwise.
-
-If you don't define this macro, a default is used which is good on most
-machines: @code{4 * @var{calls} < @var{refs}}.
-@end defmac
-
 @defmac HARD_REGNO_CALLER_SAVE_MODE (@var{regno}, @var{nregs})
 A C expression specifying which mode is required for saving @var{nregs}
 of a pseudo-register in call-clobbered hard register @var{regno}.  If
diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
index dd72b985d042..7a63353b4ea1 100644
--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
@@ -3683,16 +3683,6 @@ If you enable it, GCC can save registers around function calls.  This
 makes it possible to use call-clobbered registers to hold variables that
 must live across calls.
 
-@defmac CALLER_SAVE_PROFITABLE (@var{refs}, @var{calls})
-A C expression to determine whether it is worthwhile to consider placing
-a pseudo-register in a call-clobbered hard register and saving and
-restoring it around each function call.  The expression should be 1 when
-this is worth doing, and 0 otherwise.
-
-If you don't define this macro, a default is used which is good on most
-machines: @code{4 * @var{calls} < @var{refs}}.
-@end defmac
-
 @defmac HARD_REGNO_CALLER_SAVE_MODE (@var{regno}, @var{nregs})
 A C expression specifying which mode is required for saving @var{nregs}
 of a pseudo-register in call-clobbered hard register @var{regno}.  If
diff --git a/gcc/regs.h b/gcc/regs.h
index be81db46a7e4..36e803ddaa60 100644
--- a/gcc/regs.h
+++ b/gcc/regs.h
@@ -214,14 +214,6 @@ extern short *reg_renumber;
 
 extern int caller_save_needed;
 
-/* Predicate to decide whether to give a hard reg to a pseudo which
-   is referenced REFS times and would need to be saved and restored
-   around a call CALLS times.  */
-
-#ifndef CALLER_SAVE_PROFITABLE
-#define CALLER_SAVE_PROFITABLE(REFS, CALLS)  (4 * (CALLS) < (REFS))
-#endif
-
 /* Select a register mode required for caller save of hard regno REGNO.  */
 #ifndef HARD_REGNO_CALLER_SAVE_MODE
 #define HARD_REGNO_CALLER_SAVE_MODE(REGNO, NREGS, MODE) \
diff --git a/gcc/system.h b/gcc/system.h
index 29da7974ced4..3f2cfa12574d 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -933,7 +933,8 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
 	CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT			   \
 	REG_CLASS_FROM_CONSTRAINT REG_CLASS_FOR_CONSTRAINT		   \
 	EXTRA_CONSTRAINT_STR EXTRA_MEMORY_CONSTRAINT			   \
-	EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P
+	EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P	   \
+	CALLER_SAVE_PROFITABLE
 
 /* Hooks that are no longer used.  */
  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE	\