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Ben Elliston 09e881c9e2 extend.texi (Named Address Spaces): New section. 
2009-10-26  Ben Elliston  <bje@au.ibm.com>
	    Michael Meissner  <meissner@linux.vnet.ibm.com>
	    Ulrich Weigand  <uweigand@de.ibm.com>

	* doc/extend.texi (Named Address Spaces): New section.
	* coretypes.h (addr_space_t): New type.
	(ADDR_SPACE_GENERIC): New define.
	(ADDR_SPACE_GENERIC_P): New macro.

	* doc/tm.texi (Named Address Spaces): New section.
	(TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P): Document.
	(TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS): Document.
	(TARGET_ADDR_SPACE_SUBSET_P): Document.
	(TARGET_ADDR_SPACE_CONVERT): Document.
	* target.h (struct gcc_target): Add addr_space substructure.
	* target-def.h (TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P): Define.
	(TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS): Likewise.
	(TARGET_ADDR_SPACE_SUBSET_P): Likewise.
	(TARGET_ADDR_SPACE_CONVERT): Likewise.
	(TARGET_ADDR_SPACE_HOOKS): Likewise.
	(TARGET_INITIALIZER): Initialize addr_space hooks.
	* targhooks.c (default_addr_space_legitimate_address_p): New function.
	(default_addr_space_legitimize_address): Likewise.
	(default_addr_space_subset_p): Likewise.
	(default_addr_space_convert): Likewise.
	* targhooks.h (default_addr_space_legitimate_address_p): Add prototype.
	(default_addr_space_legitimize_address): Likewise.
	(default_addr_space_subset_p): Likewise.
	(default_addr_space_convert): Likewise.

	* doc/rtl.texi (MEM_ADDR_SPACE): Document.
	* rtl.h (mem_attrs): Add ADDRSPACE memory attribute.
	(MEM_ADDR_SPACE): New macro.
	* emit-rtl.c (get_mem_attrs): Add ADDRSPACE argument and set
	address space memory attribute.
	(mem_attrs_htab_hash): Handle address space memory attribute.
	(mem_attrs_htab_eq): Likewise.
	(set_mem_attributes_minus_bitpos): Likewise.
	(set_mem_alias_set): Likewise.
	(set_mem_align): Likewise.
	(set_mem_expr): Likewise.
	(set_mem_offset): Likewise.
	(set_mem_size): Likewise.
	(adjust_address_1): Likewise.
	(offset_address): Likewise.
	(widen_memoy_address): Likewise.
	(get_spill_slot_decl): Likewise.
	(set_mem_attrs_for_spill): Likewise.
	(set_mem_addr_space): New function.
	* emit-rtl.h (set_mem_addr_space): Add prototype.
	* print-rtl.c (print_rtx): Print address space memory attribute.
	* expr.c (expand_assignment): Set address space memory attribute
	of generated MEM RTXes as appropriate.
	(expand_expr_real_1): Likewise.
	* cfgexpand.c (expand_debug_expr): Likewise.
	* tree-ssa-loop-ivopts.c (produce_memory_decl_rtl): Likewise.

	* tree.h (struct tree_base): Add address_space bitfield.  Reduce
	size of "spare" bitfield.
	(TYPE_ADDR_SPACE): New macro.
	(ENCODE_QUAL_ADDR_SPACE): Likewise.
	(DECODE_QUAL_ADDR_SPACE): Likewise.
	(CLEAR_QUAL_ADDR_SPACE): Likewise.
	(KEEP_QUAL_ADDR_SPACE): Likewise.
	(TYPE_QUALS): Encode type address space.
	(TYPE_QUALS_NO_ADDR_SPACE): New macro.
	* tree.c (set_type_quals): Set type address space.
	(build_array_type): Inherit array address space from element type.
	* print-tree.c (print_node_brief): Print type address space.
	(print_node): Likewise.
	* tree-pretty-print.c (dump_generic_node): Likewise.

	* explow.c (memory_address): Rename to ...
	(memory_address_addr_space): ... this.  Add ADDRSPACE argument.
	Use address-space aware variants of memory address routines.
	* recog.c (memory_address_p): Rename to ...
	(memory_address_addr_space_p): ... this.  Add ADDSPACE argument.
	Use address-space aware variants of memory address routines.
	(offsettable_address_p): Rename to ...
	(offsettable_address_addr_space_p): ... this.  Add ADDRSPACE argument.
	Use address-space aware variants of memory address routines.
	* reload.c (strict_memory_address_p): Rename to ...
	(strict_memory_address_addr_space_p): ... this.  Add ADDSPACE argument.
	Use address-space aware variants of memory address routines.
	(maybe_memory_address_p): Rename to ...
	(maybe_memory_address_addr_space_p): ... this.  Add ADDSPACE argument.
	Use address-space aware variants of memory address routines.
	* expr.h (memory_address_addr_space): Add prototype.
	(memory_address): Define as macro.
	* recog.h (memory_address_addr_space_p): Add prototype.
	(memory_address_p): Define as macro.
	(offsettable_address_addr_space_p): Add prototype.
	(offsettable_address_p): Define as macro.
	(strict_memory_address_addr_space_p): Add prototype.
	(strict_memory_address_p): Define as macro.

	* combine.c (find_split_point): Use address-space aware variants
	of memory address routines.
	* emit-rtl.c (operand_subword): Likewise.
	(change_address_1): Likewise.
	(adjust_address_1): Likewise.
	(offset_address): Likewise.
	* expr.c (emit_move_insn): Likewise.
	(expand_assignment): Likewise.
	(expand_expr_real_1): Likewise.
	* recog.c (verify_changes): Likewise.
	(general_operand): Likewise.
	(offsettable_memref_p): Likewise.
	(offsettable_nonstrict_memref_p): Likewise.
	(constrain_operands): Likewise.
	* reload.c (get_secondary_mem): Likewise.
	(find_reloads_toplev): Likewise.
	(find_reloads_address): Likewise.
	(find_reloads_subreg_address): Likewise.
	* reload1.c (reload): Likewise.
	* rtlhooks.c (gen_lowpart_if_possible): Likewise.
	* rtl.h (address_cost): Add ADDRSPACE argument.
	* rtlanal.c (address_cost): Add ADDRSPACE argument.  Use address-space
	aware variant of memory address routines.
	* loop-invariant.c (create_new_invariant): Update address_cost call.
	* tree-ssa-loop-ivopts.c (computation_cost): Likewise.
	* fwprop.c (should_replace_address): Add ADDRSPACE argument.
	Use address-space aware variant of memory address routines.
	(propagate_rtx_1): Update call to should_replace_address.
	* tree-flow.h (multiplier_allowed_in_address_p): Add ADDRSPACE
	argument.
	* tree-ssa-loop-ivopts.c (multiplier_allowed_in_address_p): Add
	ADDRSPACE argument.  Use per-address-space instead of global cache.
	Use address-space aware variant of memory address routines.
	(get_address_cost): Likewise.
	(get_computation_cost_at): Update calls.
	* tree-ssa-address.c (valid_mem_ref_p): Add ADDRSPACE argument.
	Use address-space aware variant of memory address routines.
	(create_mem_ref_raw): Update call to valid_mem_ref_p.
	(most_expensive_mult_to_index): Update call to
	multiplier_allowed_in_address_p.

	* dwarf2out.c (modified_type_die): Output DW_AT_address_class
	attribute to indicate named address spaces.

	* varasm.c (get_variable_section): DECLs in named address spaces
	cannot be "common".

	* reload.c (find_reloads_address): Do not use LEGITIMIZE_RELOAD_ADDRESS
	for addresses in a non-generic address space.

	* expr.c (emit_block_move_hints): Do not use libcalls for
	memory in non-generic address spaces.
	(clear_storage_hints): Likewise.
	(expand_assignment): Likewise.

	* fold-const.c (operand_equal_p): Expressions refering to different
	address spaces are not equivalent.

	* rtl.c (rtx_equal_p_cb): MEMs refering to different address
	spaces are not equivalent.
	(rtx_equal_p): Likewise.
	* cse.c (exp_equiv_p): Likewise.
	* jump.c (rtx_renumbered_equal_p): Likewise.
	* reload.c (operands_match_p): Likewise.

	* alias.c (nonoverlapping_memrefs_p): MEMs refering to different
	address spaces may alias.
	(true_dependence): Likewise.
	(canon_true_dependence): Likewise.
	(write_dependence_p): Likewise.

	* dse.c (canon_address): Handle named address spaces.
	* ifcvt.c (noce_try_cmove_arith): Likewise.

	* tree.def (ADDR_SPACE_CONVERT_EXPR): New tree code.
	* expr.c (expand_expr_real_2): Expand ADDR_SPACE_CONVERT_EXPR.
	* convert.c (convert_to_pointer): Generate ADDR_SPACE_CONVERT_EXPR
	to handle conversions between different address spaces.
	* fold-const.c (fold_convert_loc): Likewise.
	(fold_unary_loc): Handle ADDR_SPACE_CONVERT_EXPR.
	* tree-pretty-print.c (dump_generic_node): Likewise.
	* gimple-pretty-print.c (dump_unary_rhs): Likewise.
	* tree-cfg.c (verify_gimple_assign_unary): Likewise.
	* tree-inline.c (estimate_operator_cost): Likewise.
	* tree-ssa.c (useless_type_conversion_p): Conversions between pointers
	to different address spaces are not useless.

Co-Authored-By: Michael Meissner <meissner@linux.vnet.ibm.com>
Co-Authored-By: Ulrich Weigand <uweigand@de.ibm.com>

From-SVN: r153572
 		2009-10-26 21:55:59 +00:00
INSTALL
…
boehm-gc Override all per-target *_LINK variables correctly. 2009-09-11 05:02:20 +00:00
config acx.m4 (ACX_CHECK_CYGWIN_CAT_WORKS): Use = with test. 2009-10-23 10:03:47 +00:00
contrib Merge lto branch into trunk. 2009-10-03 17:10:11 -04:00
fixincludes inclhack.def (hpux_stdint_least_fast): Simplify. 2009-10-21 17:01:35 +00:00
gcc extend.texi (Named Address Spaces): New section. 2009-10-26 21:55:59 +00:00
gnattools Update AC_PREREQ entries to 2.64 2009-08-24 19:08:51 +00:00
include splay-tree.h (libi_uhostptr_t): Add gcc specific __extension__ for long long type case to silent cX9. 2009-10-23 17:08:10 +02:00
intl 2009-10-15 Jim Blandy <jimb@red-bean.com> 2009-10-15 08:56:02 +00:00
libada Makefile.in (GNATLIBCFLAGS_FOR_C): New variable. 2009-10-24 10:58:31 +00:00
libcpp charset.c (cpp_init_iconv): Initialize utf8_cset_desc. 2009-10-19 23:41:15 +02:00
libdecnumber stdint.m4 (GCC_HEADER_STDINT): Revert changes to this macro in the previous two patches. 2009-09-09 19:42:21 +00:00
libffi win64.S (_ffi_call_win64 stack): Remove for gnu assembly version use of ___chkstk. 2009-09-29 00:26:25 +02:00
libgcc MAINTAINERS: Add myself as a maintainer for the RX port. 2009-10-26 16:30:15 +00:00
libgfortran re PR libfortran/41683 (F2003 Repeat specification after P descriptor rejected) 2009-10-13 01:43:39 +00:00
libgomp re PR libstdc++/38923 (symbol versioning disabled due to non-portable sed script) 2009-10-26 21:28:24 +01:00
libiberty argv.c (consume_whitespace): New function. 2009-10-08 15:14:41 +00:00
libjava PR cp-tools/39177 * tools/gnu/classpath/tools/jar/Creator.java 2009-10-22 15:41:32 +00:00
libmudflap re PR libmudflap/41433 (security: mudflap accepts environment variables if setuid) 2009-09-22 16:17:50 +00:00
libobjc Update AC_PREREQ entries to 2.64 2009-08-24 19:08:51 +00:00
libssp Update AC_PREREQ entries to 2.64 2009-08-24 19:08:51 +00:00
libstdc++-v3 re PR libstdc++/38923 (symbol versioning disabled due to non-portable sed script) 2009-10-26 21:28:24 +01:00
lto-plugin configure.ac: Use AM_MAINTAINER_MODE. 2009-10-26 16:05:36 +00:00
maintainer-scripts * update_web_docs_svn: Update BUGURL to http://gcc.gnu.org/bugs/. 2009-10-10 20:43:15 +00:00
zlib Update AC_PREREQ entries to 2.64 2009-08-24 19:08:51 +00:00
ABOUT-NLS
…
COPYING
…
COPYING.LIB
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COPYING.RUNTIME Licensing changes to GPLv3 resp. GPLv3 with GCC Runtime Exception. 2009-04-09 17:00:19 +02:00
COPYING3 COPYING_v3: New file. 2007-07-17 08:37:53 +00:00
COPYING3.LIB COPYING_v3: New file. 2007-07-17 08:37:53 +00:00
ChangeLog MAINTAINERS: Add myself as a maintainer for the RX port. 2009-10-26 16:30:15 +00:00
ChangeLog.tree-ssa
…
MAINTAINERS MAINTAINERS: Add myself as a maintainer for the RX port. 2009-10-26 16:30:15 +00:00
Makefile.def Makefile.def: check-gold depends upon all-gas. 2009-10-07 05:41:23 +00:00
Makefile.in Makefile.def: check-gold depends upon all-gas. 2009-10-07 05:41:23 +00:00
Makefile.tpl Merge lto branch into trunk. 2009-10-03 17:10:11 -04:00
README README: Refer to the various COPYING* files instead of just COPYING. 2009-10-10 20:59:49 +00:00
compile Update automake-provided files in the toplevel. 2009-08-22 11:47:16 +00:00
config-ml.in config-ml.in: don't handle --enable-shared and --enable-static. 2008-05-14 17:15:51 +00:00
config.guess * config.sub, config.guess: Update from upstream sources. 2009-09-23 09:48:35 +00:00
config.rpath * config.rpath: Add AIX 6 support. 2008-03-13 14:55:20 -04:00
config.sub * config.sub : Update from upstream sources. 2009-10-07 08:48:50 +00:00
configure acx.m4 (ACX_CHECK_CYGWIN_CAT_WORKS): Use = with test. 2009-10-23 10:03:47 +00:00
configure.ac configure.ac (CLooG test): Use = with test. 2009-10-23 09:24:25 +00:00
depcomp Update automake-provided files in the toplevel. 2009-08-22 11:47:16 +00:00
install-sh Update automake-provided files in the toplevel. 2009-08-22 11:47:16 +00:00
libtool-ldflags re PR bootstrap/31906 ("-Xcompiler" is inserted after "-Xlinker" when building libstdc++) 2007-09-20 10:20:05 +00:00
libtool.m4 libtool.m4 (output_verbose_link_cmd): Require leading blank, and blank before -L. 2009-09-08 17:43:37 +00:00
ltgcc.m4 libtool.m4: Update to libtool 2.2.6. 2008-09-26 16:21:02 +00:00
ltmain.sh ltmain.sh (removedotparts): Don't use comma as 's' separator. 2009-08-26 14:52:45 +00:00
ltoptions.m4 libtool.m4: Update to libtool 2.2.6. 2008-09-26 16:21:02 +00:00
ltsugar.m4 libtool.m4: Update to libtool 2.2.6. 2008-09-26 16:21:02 +00:00
ltversion.m4 libtool.m4: Update to libtool 2.2.6. 2008-09-26 16:21:02 +00:00
lt~obsolete.m4 libtool.m4: Update to libtool 2.2.6. 2008-09-26 16:21:02 +00:00
missing Update automake-provided files in the toplevel. 2009-08-22 11:47:16 +00:00
mkdep
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mkinstalldirs Update automake-provided files in the toplevel. 2009-08-22 11:47:16 +00:00
move-if-change Import from Autoconf sources: 2005-11-21 13:21:37 +11:00
symlink-tree
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ylwrap Update automake-provided files in the toplevel. 2009-08-22 11:47:16 +00:00

README 

This directory contains the GNU Compiler Collection (GCC).

The GNU Compiler Collection is free software.  See the files whose
names start with COPYING for copying permission.  The manuals, and
some of the runtime libraries, are under different terms; see the
individual source files for details.

The directory INSTALL contains copies of the installation information
as HTML and plain text.  The source of this information is
gcc/doc/install.texi.  The installation information includes details
of what is included in the GCC sources and what files GCC installs.

See the file gcc/doc/gcc.texi (together with other files that it
includes) for usage and porting information.  An online readable
version of the manual is in the files gcc/doc/gcc.info*.

See http://gcc.gnu.org/bugs/ for how to report bugs usefully.