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GCC modified for the FreeChainXenon project
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Kewen Lin 165b1f6ad1 targhooks: Extend legitimate_address_p with code_helper [PR110248] 
As PR110248 shows, some middle-end passes like IVOPTs can
query the target hook legitimate_address_p with some
artificially constructed rtx to determine whether some
addressing modes are supported by target for some gimple
statement.  But for now the existing legitimate_address_p
only checks the given mode, it's unable to distinguish
some special cases unfortunately, for example, for LEN_LOAD
ifn on Power port, we would expand it with lxvl hardware
insn, which only supports one register to hold the address
(the other register is holding the length), that is we
don't support base (reg) + index (reg) addressing mode for
sure.  But hook legitimate_address_p only considers the
given mode which would be some vector mode for LEN_LOAD
ifn, and we do support base + index addressing mode for
normal vector load and store insns, so the hook will return
true for the query unexpectedly.

This patch is to introduce one extra argument of type
code_helper for hook legitimate_address_p, it makes targets
able to handle some special case like what's described
above.

	PR tree-optimization/110248

gcc/ChangeLog:

	* coretypes.h (class code_helper): Add forward declaration.
	* doc/tm.texi: Regenerate.
	* lra-constraints.cc (valid_address_p): Call target hook
	targetm.addr_space.legitimate_address_p with an extra parameter
	ERROR_MARK as its prototype changes.
	* recog.cc (memory_address_addr_space_p): Likewise.
	* reload.cc (strict_memory_address_addr_space_p): Likewise.
	* target.def (legitimate_address_p, addr_space.legitimate_address_p):
	Extend with one more argument of type code_helper, update the
	documentation accordingly.
	* targhooks.cc (default_legitimate_address_p): Adjust for the
	new code_helper argument.
	(default_addr_space_legitimate_address_p): Likewise.
	* targhooks.h (default_legitimate_address_p): Likewise.
	(default_addr_space_legitimate_address_p): Likewise.
	* config/aarch64/aarch64.cc (aarch64_legitimate_address_hook_p): Adjust
	with extra unnamed code_helper argument with default ERROR_MARK.
	* config/alpha/alpha.cc (alpha_legitimate_address_p): Likewise.
	* config/arc/arc.cc (arc_legitimate_address_p): Likewise.
	* config/arm/arm-protos.h (arm_legitimate_address_p): Likewise.
	(tree.h): New include for tree_code ERROR_MARK.
	* config/arm/arm.cc (arm_legitimate_address_p): Adjust with extra
	unnamed code_helper argument with default ERROR_MARK.
	* config/avr/avr.cc (avr_addr_space_legitimate_address_p): Likewise.
	* config/bfin/bfin.cc (bfin_legitimate_address_p): Likewise.
	* config/bpf/bpf.cc (bpf_legitimate_address_p): Likewise.
	* config/c6x/c6x.cc (c6x_legitimate_address_p): Likewise.
	* config/cris/cris-protos.h (cris_legitimate_address_p): Likewise.
	(tree.h): New include for tree_code ERROR_MARK.
	* config/cris/cris.cc (cris_legitimate_address_p): Adjust with extra
	unnamed code_helper argument with default ERROR_MARK.
	* config/csky/csky.cc (csky_legitimate_address_p): Likewise.
	* config/epiphany/epiphany.cc (epiphany_legitimate_address_p):
	Likewise.
	* config/frv/frv.cc (frv_legitimate_address_p): Likewise.
	* config/ft32/ft32.cc (ft32_addr_space_legitimate_address_p): Likewise.
	* config/gcn/gcn.cc (gcn_addr_space_legitimate_address_p): Likewise.
	* config/h8300/h8300.cc (h8300_legitimate_address_p): Likewise.
	* config/i386/i386.cc (ix86_legitimate_address_p): Likewise.
	* config/ia64/ia64.cc (ia64_legitimate_address_p): Likewise.
	* config/iq2000/iq2000.cc (iq2000_legitimate_address_p): Likewise.
	* config/lm32/lm32.cc (lm32_legitimate_address_p): Likewise.
	* config/loongarch/loongarch.cc (loongarch_legitimate_address_p):
	Likewise.
	* config/m32c/m32c.cc (m32c_legitimate_address_p): Likewise.
	(m32c_addr_space_legitimate_address_p): Likewise.
	* config/m32r/m32r.cc (m32r_legitimate_address_p): Likewise.
	* config/m68k/m68k.cc (m68k_legitimate_address_p): Likewise.
	* config/mcore/mcore.cc (mcore_legitimate_address_p): Likewise.
	* config/microblaze/microblaze-protos.h (tree.h): New include for
	tree_code ERROR_MARK.
	(microblaze_legitimate_address_p): Adjust with extra unnamed
	code_helper argument with default ERROR_MARK.
	* config/microblaze/microblaze.cc (microblaze_legitimate_address_p):
	Likewise.
	* config/mips/mips.cc (mips_legitimate_address_p): Likewise.
	* config/mmix/mmix.cc (mmix_legitimate_address_p): Likewise.
	* config/mn10300/mn10300.cc (mn10300_legitimate_address_p): Likewise.
	* config/moxie/moxie.cc (moxie_legitimate_address_p): Likewise.
	* config/msp430/msp430.cc (msp430_legitimate_address_p): Likewise.
	(msp430_addr_space_legitimate_address_p): Adjust with extra code_helper
	argument with default ERROR_MARK and adjust the call to function
	msp430_legitimate_address_p.
	* config/nds32/nds32.cc (nds32_legitimate_address_p): Adjust with extra
	unnamed code_helper argument with default ERROR_MARK.
	* config/nios2/nios2.cc (nios2_legitimate_address_p): Likewise.
	* config/nvptx/nvptx.cc (nvptx_legitimate_address_p): Likewise.
	* config/or1k/or1k.cc (or1k_legitimate_address_p): Likewise.
	* config/pa/pa.cc (pa_legitimate_address_p): Likewise.
	* config/pdp11/pdp11.cc (pdp11_legitimate_address_p): Likewise.
	* config/pru/pru.cc (pru_addr_space_legitimate_address_p): Likewise.
	* config/riscv/riscv.cc (riscv_legitimate_address_p): Likewise.
	* config/rl78/rl78-protos.h (rl78_as_legitimate_address): Likewise.
	(tree.h): New include for tree_code ERROR_MARK.
	* config/rl78/rl78.cc (rl78_as_legitimate_address): Adjust with
	extra unnamed code_helper argument with default ERROR_MARK.
	* config/rs6000/rs6000.cc (rs6000_legitimate_address_p): Likewise.
	(rs6000_debug_legitimate_address_p): Adjust with extra code_helper
	argument and adjust the call to function rs6000_legitimate_address_p.
	* config/rx/rx.cc (rx_is_legitimate_address): Adjust with extra
	unnamed code_helper argument with default ERROR_MARK.
	* config/s390/s390.cc (s390_legitimate_address_p): Likewise.
	* config/sh/sh.cc (sh_legitimate_address_p): Likewise.
	* config/sparc/sparc.cc (sparc_legitimate_address_p): Likewise.
	* config/v850/v850.cc (v850_legitimate_address_p): Likewise.
	* config/vax/vax.cc (vax_legitimate_address_p): Likewise.
	* config/visium/visium.cc (visium_legitimate_address_p): Likewise.
	* config/xtensa/xtensa.cc (xtensa_legitimate_address_p): Likewise.
	* config/stormy16/stormy16-protos.h (xstormy16_legitimate_address_p):
	Likewise.
	(tree.h): New include for tree_code ERROR_MARK.
	* config/stormy16/stormy16.cc (xstormy16_legitimate_address_p):
	Adjust with extra unnamed code_helper argument with default
	ERROR_MARK.
2023-08-09 01:16:05 -05:00
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gcc targhooks: Extend legitimate_address_p with code_helper [PR110248] 2023-08-09 01:16:05 -05:00
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ltgcc.m4
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lt~obsolete.m4
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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.

Copyright years on GCC source files may be listed using range
notation, e.g., 1987-2012, indicating that every year in the range,
inclusive, is a copyrightable year that could otherwise be listed
individually.