2009-05-04 Paolo Bonzini <bonzini@gnu.org>

 	* doc/tm.texi (LEGITIMIZE_ADDRESS): Revise documentation.
	* gcc/defaults.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/explow.c (memory_address): Use target hook.
	* gcc/targhooks.c (default_legitimize_address): New.
	* gcc/targhooks.h (default_legitimize_address): New.
	* gcc/target.h (legitimize_address): New.
	* gcc/target-def.h (TARGET_LEGITIMIZE_ADDRESS): New.
	(TARGET_INITIALIZER): Include it.
	* gcc/system.h (LEGITIMIZE_ADDRESS): Poison.

	* config/bfin/bfin-protos.h (legitimize_address): Remove.
	* config/bfin/bfin.c (legitimize_address): Remove.
	* config/bfin/bfin.h (LEGITIMIZE_ADDRESS): Remove.
	* config/m68hc11/m68hc11-protos.h (m68hc11_legitimize_address): Remove.
	* config/m68hc11/m68hc11.c (m68hc11_legitimize_address): Remove.
	* config/m68hc11/m68hc11.h (LEGITIMIZE_ADDRESS): Remove.

	* gcc/config/arm/arm.h (LEGITIMIZE_ADDRESS, ARM_LEGITIMIZE_ADDRESS,
	THUMB_LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/s390/s390.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/m32c/m32c.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/sparc/sparc.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/m32r/m32r.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/i386/i386.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/sh/sh.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/avr/avr.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/m68hc11/m68hc11.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/iq2000/iq2000.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/mn10300/mn10300.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/m68k/m68k.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/score/score.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/pa/pa.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/mips/mips.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/alpha/alpha.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/frv/frv.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/spu/spu.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/xtensa/xtensa.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/cris/cris.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/rs6000/rs6000.h (LEGITIMIZE_ADDRESS): Delete.
	* gcc/config/picochip/picochip.h (LEGITIMIZE_ADDRESS): Delete.

	* gcc/config/s390/s390-protos.h (legitimize_address): Delete.
	* gcc/config/m32c/m32c-protos.h (m32c_legitimize_address): Delete.
	* gcc/config/sparc/sparc-protos.h (legitimize_address): Delete.
	* gcc/config/i386/i386-protos.h (legitimize_address): Delete.
	* gcc/config/avr/avr-protos.h (legitimize_address): Delete.
	* gcc/config/mn10300/mn10300-protos.h (legitimize_address): Delete.
	* gcc/config/score/score-protos.h (score_legitimize_address): Delete.
	* gcc/config/arm/arm-protos.h (arm_legitimize_address,
	(thumb_legitimize_address): Delete.
	* gcc/config/pa/pa-protos.h (hppa_legitimize_address): Delete.
	* gcc/config/mips/mips-protos.h (mips_legitimize_address): Delete.
	* gcc/config/alpha/alpha-protos.h (alpha_legitimize_address): Delete.
	* gcc/config/frv/frv-protos.h (frv_legitimize_address): Delete.
	* gcc/config/spu/spu-protos.h (spu_legitimize_address): Delete.
	* gcc/config/xtensa/xtensa-protos.h (xtensa_legitimize_address): Delete.
	* gcc/config/rs6000/rs6000-protos.h (rs6000_legitimize_address): Delete.

	* config/arm/arm.c (arm_legitimize_address): Maybe call Thumb version.
	* config/m32c/m32c.c (m32c_legitimize_address): Standardize.
	* config/m32r/m32r.c (m32r_legitimize_address): New.
	* config/m68k/m68k.c (m68k_legitimize_address): New.
	* config/score/score.c (score_legitimize_address): Standardize.
	* config/score/score3.c (score3_legitimize_address): Standardize.
	* config/score/score3.h (score3_legitimize_address): Adjust.
	* config/score/score7.c (score7_legitimize_address): Standardize.
	* config/score/score7.h (score7_legitimize_address): Adjust.
	* config/sh/sh.c (sh_legitimize_address): New.
	* config/iq2000/iq2000.c (iq2000_legitimize_address): New.

	* gcc/config/s390/s390.c (legitimize_address): Rename to...
 	(s390_legitimize_address): ... this.
	* gcc/config/sparc/sparc.c (legitimize_address): Rename to...
	(sparc_legitimize_address): ... this.
	* gcc/config/i386/i386.c (legitimize_address): Rename to...
	(ix86_legitimize_address): ... this.
	* gcc/config/avr/avr.c (legitimize_address): Rename to...
	(avr_legitimize_address): ... this.
	* gcc/config/mn10300/mn10300.c (legitimize_address): Rename to...
	(mn10300_legitimize_address): ... this.
	* config/alpha/alpha.c (alpha_legitimize_address): Wrap...
	(alpha_legitimize_address_1): ... the old alpha_legitimize_address.
	(alpha_expand_mov): Adjust call.

	* config/frv/frv.c (frv_legitimize_address): Return x on failure.
	* config/spu/spu.c (spu_legitimize_address): Likewise.
	* config/xtensa/xtensa.c (xtensa_legitimize_address): Likewise.
	* config/rs6000/rs6000.c (rs6000_legitimize_address): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@147098 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 12 insertions, 18 deletions

diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 4765cf6401a..4c9b16279b5 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -5443,32 +5443,26 @@ The typical use of this macro is to handle addresses containing
 a label_ref or symbol_ref within an UNSPEC@.
 @end defmac
 
-@defmac LEGITIMIZE_ADDRESS (@var{x}, @var{oldx}, @var{mode}, @var{win})
-A C compound statement that attempts to replace @var{x} with a valid
-memory address for an operand of mode @var{mode}.  @var{win} will be a
-C statement label elsewhere in the code; the macro definition may use
-
-@smallexample
-GO_IF_LEGITIMATE_ADDRESS (@var{mode}, @var{x}, @var{win});
-@end smallexample
-
-@noindent
-to avoid further processing if the address has become legitimate.
+@deftypefn {Target Hook} rtx TARGET_LEGITIMIZE_ADDRESS (rtx @var{x}, rtx @var{oldx}, enum machine_mode @var{mode})
+This hook is given an invalid memory address @var{x} for an
+operand of mode @var{mode} and should try to return a valid memory
+address.
 
 @findex break_out_memory_refs
 @var{x} will always be the result of a call to @code{break_out_memory_refs},
 and @var{oldx} will be the operand that was given to that function to produce
 @var{x}.
 
-The code generated by this macro should not alter the substructure of
+The code of the hook should not alter the substructure of
 @var{x}.  If it transforms @var{x} into a more legitimate form, it
-should assign @var{x} (which will always be a C variable) a new value.
+should return the new @var{x}.
 
-It is not necessary for this macro to come up with a legitimate
-address.  The compiler has standard ways of doing so in all cases.  In
-fact, it is safe to omit this macro.  But often a
-machine-dependent strategy can generate better code.
-@end defmac
+It is not necessary for this hook to come up with a legitimate address.
+The compiler has standard ways of doing so in all cases.  In fact, it
+is safe to omit this hook or make it return @var{x} if it cannot find
+a valid way to legitimize the address.  But often a machine-dependent
+strategy can generate better code.
+@end deftypefn
 
 @defmac LEGITIMIZE_RELOAD_ADDRESS (@var{x}, @var{mode}, @var{opnum}, @var{type}, @var{ind_levels}, @var{win})
 A C compound statement that attempts to replace @var{x}, which is an address