From: Pitchumani Sivanupandi <pitchumani.s@atmel.com>
Date: Mon, 11 May 2015 17:16:43 +0000 (+0000)
Subject: avr.c (avr_hard_regno_call_part_clobbered): Use LAST_CALLEE_SAVED_REG instead of... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4e2c881f7154ae598af1d8ef7084744b77c11181;p=gcc.git

avr.c (avr_hard_regno_call_part_clobbered): Use LAST_CALLEE_SAVED_REG instead of hard-coded register number.

	* config/avr/avr.c (avr_hard_regno_call_part_clobbered): Use
	LAST_CALLEE_SAVED_REG instead of hard-coded register number.
	(Last callee saved reg is different for AVR_TINY architecture)

From-SVN: r223009
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 77aa930136d..869a881d219 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2015-05-11  Pitchumani Sivanupandi  <pitchumani.s@atmel.com>
+
+	* config/avr/avr.c (avr_hard_regno_call_part_clobbered): Use
+	LAST_CALLEE_SAVED_REG instead of hard-coded register number.
+	(Last callee saved reg is different for AVR_TINY architecture)
+
 2015-05-11  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.c (ix86_loop_unroll_adjust): Use PATTERN (insn)
diff --git a/gcc/config/avr/avr.c b/gcc/config/avr/avr.c
index 7436b59a970..8f98bf51f1f 100644
--- a/gcc/config/avr/avr.c
+++ b/gcc/config/avr/avr.c
@@ -11332,9 +11332,10 @@ avr_hard_regno_call_part_clobbered (unsigned regno, machine_mode mode)
     return 0;
 
   /* Return true if any of the following boundaries is crossed:
-     17/18, 27/28 and 29/30.  */
+     17/18 or 19/20 (if AVR_TINY), 27/28 and 29/30.  */
 
-  return ((regno < 18 && regno + GET_MODE_SIZE (mode) > 18)
+  return ((regno <= LAST_CALLEE_SAVED_REG &&
+           regno + GET_MODE_SIZE (mode) > (LAST_CALLEE_SAVED_REG + 1))
           || (regno < REG_Y && regno + GET_MODE_SIZE (mode) > REG_Y)
           || (regno < REG_Z && regno + GET_MODE_SIZE (mode) > REG_Z));
 }