* Makefile.in (expr.o): Depend on $(TARGET_H).

	* target.h (return_in_msb): New target hook.
	* target-def.h (TARGET_RETURN_IN_MSB): New macro.
	(TARGET_CALLS): Include it.
	* calls.c (shift_returned_value): New function.
	(expand_call): Use it.
	* expr.c: Include target.h.
	(copy_blkmode_from_reg): Check targetm.calls.return_in_msb when
	deciding what padding is needed.  Change the name of the local
	padding variable from big_endian_correction to padding_correction.
	* stmt.c (shift_return_value): New function.
	(expand_return): Use it.  Adjust memory->register copy in the same
	way as copy_blkmode_from_reg.  Only change the return register's
	mode if it was originally BLKmode.
	* doc/tm.texi (TARGET_RETURN_IN_MSB): Document.
	* config/mips/mips.c (TARGET_RETURN_IN_MSB): Define.
	(mips_fpr_return_fields): New, split out from mips_function_value.
	(mips_return_in_msb, mips_return_fpr_pair): New functions.
	(mips_function_value): Rework to use the functions above.
	* config/mips/irix6-libc-compat.c: Delete.
	* config/mips/t-iris6 (LIB2FUNCS_STATIC_EXTRA): Undefine.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@73652 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 0 insertions, 84 deletions

diff --git a/gcc/config/mips/irix6-libc-compat.c b/gcc/config/mips/irix6-libc-compat.c
deleted file mode 100644
index 7d4140808a5..00000000000
--- a/gcc/config/mips/irix6-libc-compat.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/* Compensate for inconsistent structure return conventions on IRIX 6.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 2001  Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-In addition to the permissions in the GNU General Public License, the
-Free Software Foundation gives you unlimited permission to link the
-compiled version of this file into combinations with other programs,
-and to distribute those combinations without any restriction coming
-from the use of this file.  (The General Public License restrictions
-do apply in other respects; for example, they cover modification of
-the file, and distribution when not linked into a combine
-executable.)
-
-GCC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-/* GCC doesn't correctly implement the structure and union return
-   conventions of the N32 and N64 ABIs on IRIX 6, as described in the
-   MIPSpro N32 ABI Handbook, ch. 2, Calling Convention Implementations, p.7.
-   The ABI requires that structures (or trailing parts of structures) smaller
-   than 8 bytes (a 64-bit register) are left-justified, whereas GCC
-   right-justifies them.
-
-   While GCC is internally consistent, calling routines compiled with a
-   compiler that does implement the documented ABI (like SGIs MIPSpro C
-   compiler) doesn't work.  This is primarily an issue for system libraries
-   like libc.  Fortunately, there exist only very few routines that return
-   structures by value, so until the underlying bug is fixed, it is possible
-   to work around it by providing wrappers for the few affected routines.
-
-   These wrappers rely on the fact that e.g. libc contains weak versions of
-   those routines, and the real implementation is provided by _-prefixed
-   variants.  So we can provide our own versions, which will only be linked
-   if the application uses any of the affected functions, calling the private
-   variants and then shifting the result as required.
-
-   This is a rewrite of code created by Andy Polyakov.  */
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include "tm.h"
-
-/* This must only be used for the N32 and N64 ABIs.  O32 is correct.  */
-
-#if _MIPS_SIM == _ABIN32 || _MIPS_SIM == _ABI64
-
-/* The affected return values need to be shifted by
-
-	BITS_PER_WORD - (sizeof (value) * BITS_PER_UNIT).
-
-   Since only 32-bit results are involved, the shift count is always 32.  */
-#define SHIFT_BITS	32
-
-extern machreg_t _inet_makeaddr (machreg_t, machreg_t);
-
-/* <arpa/inet.h> has
-
-	struct in_addr inet_makeaddr (int, int);		(IRIX 6.2)
-	struct in_addr inet_makeaddr (in_addr_t, in_addr_t);	(IRIX 6.5)  */
-
-extern machreg_t inet_makeaddr (machreg_t, machreg_t);
-
-machreg_t
-inet_makeaddr (machreg_t net, machreg_t lna)
-{
-  return _inet_makeaddr (net, lna) >> SHIFT_BITS;
-}
-
-#endif /* _ABIN32 || _ABI64 */