From 0ad8bb3bc0edddefcd332a5a2cf90c078c575284 Mon Sep 17 00:00:00 2001
From: Georg-Johann Lay <avr@gjlay.de>
Date: Thu, 16 Jun 2011 09:06:44 +0000
Subject: re PR target/49313 (Inefficient libgcc implementations for avr)

gcc/
	PR target/49313
	PR target/29524
	* longlong.h: Add AVR support:
	(count_leading_zeros): New macro.
	(count_trailing_zeros): New macro.
	(COUNT_LEADING_ZEROS_0): New macro.
	* config/avr/t-avr (LIB1ASMFUNCS): Add
	_ffssi2, _ffshi2, _loop_ffsqi2,
	_ctzsi2, _ctzhi2, _clzdi2, _clzsi2, _clzhi2,
	_paritydi2, _paritysi2, _parityhi2,
	_popcounthi2,_popcountsi2, _popcountdi2, _popcountqi2,
	_bswapsi2, _bswapdi2,
	_ashldi3, _ashrdi3, _lshrdi3
	(LIB2FUNCS_EXCLUDE): Add _clz.
	* config/avr/libgcc.S (XCALL): Move up in file.
	(XJMP): New C Macro.
	(DEFUN): New asm macro.
	(ENDF): New asm macro.
	(__ffssi2): New function.
	(__ffshi2): New function.
	(__loop_ffsqi2): New function.
	(__ctzsi2): New function.
	(__ctzhi2): New function.
	(__clzdi2): New function.
	(__clzsi2): New function.
	(__clzhi2): New function.
	(__paritydi2): New function.
	(__paritysi2): New function.
	(__parityhi2): New function.
	(__popcounthi2): New function.
	(__popcountsi2): New function.
	(__popcountdi2): New function.
	(__popcountqi2): New function.
	(__bswapsi2): New function.
	(__bswapdi2): New function.
	(__ashldi3): New function.
	(__ashrdi3): New function.
	(__lshrdi3): New function.
	Fix suspicous lines.

libgcc/
	PR target/49313
	PR target/29524
	* config/avr/t-avr: Fix line endings.
	(intfuncs16): Remove _ffsXX2,  _clzXX2, _ctzXX2, _popcountXX2,
	_parityXX2.

From-SVN: r175097
---
 gcc/config/avr/t-avr | 31 ++++++++++++++++++++++++++-----
 1 file changed, 26 insertions(+), 5 deletions(-)

(limited to 'gcc/config/avr/t-avr')

diff --git a/gcc/config/avr/t-avr b/gcc/config/avr/t-avr
index 18769eb..4186178 100644
--- a/gcc/config/avr/t-avr
+++ b/gcc/config/avr/t-avr
@@ -24,12 +24,10 @@ driver-avr.o: $(srcdir)/config/avr/driver-avr.c \
 avr-devices.o: $(srcdir)/config/avr/avr-devices.c \
   $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H)
 	$(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $<
-	
 
 avr-c.o: $(srcdir)/config/avr/avr-c.c \
   $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H) $(C_COMMON_H)
 	$(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $<
-	
 
 
 LIB1ASMSRC = avr/libgcc.S
@@ -52,7 +50,30 @@ LIB1ASMFUNCS = \
 	_copy_data \
 	_clear_bss \
 	_ctors \
-	_dtors
+	_dtors \
+	_ffssi2 \
+	_ffshi2 \
+	_loop_ffsqi2 \
+	_ctzsi2 \
+	_ctzhi2 \
+	_clzdi2 \
+	_clzsi2 \
+	_clzhi2 \
+	_paritydi2 \
+	_paritysi2 \
+	_parityhi2 \
+	_popcounthi2 \
+	_popcountsi2 \
+	_popcountdi2 \
+	_popcountqi2 \
+	_bswapsi2 \
+	_bswapdi2 \
+	_ashldi3 \
+	_ashrdi3 \
+	_lshrdi3
+
+LIB2FUNCS_EXCLUDE = \
+	_clz
 
 # We do not have the DF type.
 # Most of the C functions in libgcc2 use almost all registers,
@@ -216,8 +237,8 @@ MULTILIB_MATCHES = \
 	mmcu?avr51=mmcu?at90can128 \
 	mmcu?avr51=mmcu?at90usb1286 \
 	mmcu?avr51=mmcu?at90usb1287 \
- 	mmcu?avr6=mmcu?atmega2560 \
- 	mmcu?avr6=mmcu?atmega2561
+	mmcu?avr6=mmcu?atmega2560 \
+	mmcu?avr6=mmcu?atmega2561
 
 MULTILIB_EXCEPTIONS =
 
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