[Renesas SH] Fix differences between Renesas compiler ABI and GCC ABI (with "-mrenesas" option) for parameters of 'long long' and 'double' data type.

["Gina Verlekar" <GinaV at KPITCummins dot com>]

Hi,

Please find attached the patch 'mrenesas.patch.tar.bz2'. This patch
fixes the	
ABI differences between Renesas SH Compiler and GNUSH toolchain (with

"-mrenesas" option) for parameters of 'long long' and 'double' data
type.	

This patch fixes the following ABI differences between Renesas SH
Compiler and	
GNUSH ABI with "-mrenesas" option.

1. According to Renesas SH Compiler ABI, arguments of data type 'long
long'	
should be passed and returned on stack for all SH targets.

2. According to Renesas SH Compiler ABI, for SH targets without FPU, GCC

library functions should pass arguments of data type 'double' on stack.

3. According to Renesas SH Compiler ABI, if the value returned by the
function	
of data type 'long long' or 'double' is assigned to a local variable,
then the	
local variable should be updated in the function epilogue.


ChangeLog
2006-08-08  Gina Verlekar  <ginav@kpitcummins.com>

	* config/sh/sh.c: Modify to fix differences between Renesas
compiler 	
	ABI and GCC ABI (with "-mrenesas" option) for parameters of
'long long'	
	and 'double' data type.
	* config/sh/t-sh: Add MULTILIBS for '-mrenesas' option.


Regards,
Gina Verlekar
KPIT Cummins Infosystems Ltd,
Pune (INDIA) 

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Attachment: mrenesas.patch.tar.bz2
Description: mrenesas.patch.tar.bz2