From patchwork Mon Jan 28 17:06:29 2013
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Subject: [avr] Remove fixed-point MUL and DIV routines from libgcc build
Date: Mon, 28 Jan 2013 07:06:29 -0000
From: Georg-Johann Lay <avr@gjlay.de>
X-Patchwork-Id: 216255
Message-Id: <5106B015.3000108@gjlay.de>
To: gcc-patches@gcc.gnu.org
Cc: Denis Chertykov <chertykov@gmail.com>,
 Eric Weddington <eric.weddington@atmel.com>

This removes modules from libgcc that are already supported by avr-specific
fixed-point implementation and avoids duplicate functions like __mulsa3.

Ok for trunk?

Johann


libgcc/
	* config/avr/t-avr (LIB2FUNCS_EXCLUDE): Add:
	_mulQQ,  _mulHQ,  _mulHA,  _mulSA,
	_mulUQQ, _mulUHQ, _mulUHA, _mulUSA,
	_divQQ,  _divHQ,  _divHA,  _divSA,
	_divUQQ, _divUHQ, _divUHA, _divUSA.


Index: config/avr/t-avr
===================================================================
--- config/avr/t-avr	(revision 195301)
+++ config/avr/t-avr	(working copy)
@@ -164,3 +164,17 @@ LIB2FUNCS_EXCLUDE += \
 LIB2FUNCS_EXCLUDE += \
 	$(foreach func,_usadd _ussub _usneg,\
 	$(foreach mode,$(usat_modes),$(func_X)))
+
+
+smul_modes =  QQ  HQ  HA  SA
+umul_modes = UQQ UHQ UHA USA
+sdiv_modes =  QQ  HQ  HA  SA
+udiv_modes = UQQ UHQ UHA USA
+
+LIB2FUNCS_EXCLUDE += \
+	$(foreach func,_mul,\
+	$(foreach mode,$(smul_modes) $(umul_modes),$(func_X)))
+
+LIB2FUNCS_EXCLUDE += \
+	$(foreach func,_div,\
+	$(foreach mode,$(sdiv_modes) $(udiv_modes),$(func_X)))