From patchwork Sat Sep 18 14:58:59 2010
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Subject: [BFIN] Hookize CLASS_LIKELY_SPILLED_P macro
From: Anatoly Sokolov <aesok@post.ru>
X-Patchwork-Id: 65128
Message-Id: <1331450171.20100918185859@post.ru>
To: gcc-patches@gcc.gnu.org
Cc: bernds@codesourcery.com, jie@codesourcery.com
Date: Sat, 18 Sep 2010 18:58:59 +0400

Hi.

  This patch removes obsolete CLASS_LIKELY_SPILLED_P macro from the
Blackfin back end in the GCC and introduces equivalent
TARGET_CLASS_LIKELY_SPILLED_P target hook.


  Untested.

  OK to install?

        * config/bfin/bfin.h (CLASS_LIKELY_SPILLED_P): Remove.
        * config/bfin/bfin.c (TARGET_CLASS_LIKELY_SPILLED_P): Define.
        (bfin_class_likely_spilled_p): New function.




Anatoly.


Index: gcc/config/bfin/bfin.c
===================================================================
--- gcc/config/bfin/bfin.c      (revision 164010)
+++ gcc/config/bfin/bfin.c      (working copy)
@@ -2543,6 +2543,29 @@
 
   return NO_REGS;
 }
+
+/* Implement TARGET_CLASS_LIKELY_SPILLED_P.  */
+
+static bool
+bfin_class_likely_spilled_p (reg_class_t rclass)
+{
+  switch (rclass)
+    {
+      case PREGS_CLOBBERED:
+      case PROLOGUE_REGS:
+      case P0REGS:
+      case D0REGS:
+      case D1REGS:
+      case D2REGS:
+      case CCREGS:
+        return true;
+
+      default:
+        break;
+    }
+
+  return false;
+}
 
 /* Implement TARGET_HANDLE_OPTION.  */
 
@@ -6632,6 +6655,9 @@
 #undef TARGET_SECONDARY_RELOAD
 #define TARGET_SECONDARY_RELOAD bfin_secondary_reload
 
+#undef TARGET_CLASS_LIKELY_SPILLED_P
+#define TARGET_CLASS_LIKELY_SPILLED_P bfin_class_likely_spilled_p
+
 #undef TARGET_DELEGITIMIZE_ADDRESS
 #define TARGET_DELEGITIMIZE_ADDRESS bfin_delegitimize_address
 
Index: gcc/config/bfin/bfin.h
===================================================================
--- gcc/config/bfin/bfin.h      (revision 164010)
+++ gcc/config/bfin/bfin.h      (working copy)
@@ -761,15 +761,6 @@
    registers.  */
 #define TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P hook_bool_mode_true
 
-#define CLASS_LIKELY_SPILLED_P(CLASS) \
-    ((CLASS) == PREGS_CLOBBERED \
-     || (CLASS) == PROLOGUE_REGS \
-     || (CLASS) == P0REGS \
-     || (CLASS) == D0REGS \
-     || (CLASS) == D1REGS \
-     || (CLASS) == D2REGS \
-     || (CLASS) == CCREGS)
-
 /* Do not allow to store a value in REG_CC for any mode */
 /* Do not allow to store value in pregs if mode is not SI*/
 #define HARD_REGNO_MODE_OK(REGNO, MODE) hard_regno_mode_ok((REGNO), (MODE))