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rs6000 (SAVE_INLINE_VRS, [...]): Define.

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gcc/
	* config/rs6000/rs6000 (SAVE_INLINE_VRS, REST_INLINE_VRS,
	V_SAVE_INLINE, SAVRES_LR, SAVRES_SAVE, SAVRES_REG,
	SAVRES_GPR, SAVRES_FPR, SAVRES_VR): Define.
	(no_global_regs_above): Delete.
	(no_global_regs): New function.
	(rs6000_savres_strategy): Handle vector regs.  Use proper lr_save_p
	value for load multiple test.
	(savres_routine_syms): Increase size.
	(rs6000_savres_routine_name, rs6000_savres_routine_sym,
	ptr_regno_for_savres, rs6000_emit_savres_rtx): Pass in int selector
	rather than a number of boolean flags.  Update all callers.
	(rs6000_savres_routine_name): Generate vector save/restore names.
	(rs6000_savres_routine_sym): Handle vector regs.  Delete forward decl.
	(ptr_regno_for_savres, rs6000_emit_savres_rtx): Likewise.
	(rs6000_emit_prologue): Delete saving_FPRs_inline, saving_GPRs_inline
	and using_store_multiple.  Expand uses.  Don't always use r11 as
	frame reg when needed for out-of-line saves.  Set up initial offset
	for out-of-line vector saves when buying stack frame.  Handle pointer
	reg setup for out-of-line fp save.  Emit call to out-of-line vector
	save function.  Choose r11 or r12 for vrsave reg when available for
	better scheduling.
	(rs6000_output_function_prologue): Don't emit .extern for ELF.
	(rs6000_emit_epilogue): Choose a better frame reg when restoring
	from back-chain to suit out-of-line vector restore functions.  Emit
	call to out-of-line vector restore function.  Adjust register used
	for cr restore.  Tweak pointer register setup for gpr restore.
	* config/rs6000/rs6000.h (FIRST_SAVED_GP_REGNO): Take into account
	FIXED_R13.
	* config/rs6000/sysv4.h (FP_SAVE_INLINE, GP_SAVE_INLINE): Simplify.
	(V_SAVE_INLINE): Define.
	* config/rs6000/altivec.md (save_vregs_*, restore_vregs_*): New insns.
libgcc/
	* config/rs6000/crtsavevr.S: New file.
	* config/rs6000/crtrestvr.S: New file.
	* config/rs6000/t-savresfgpr: Build the above.
	* config/rs6000/t-netbsd: Likewise.

From-SVN: r186800
This commit is contained in:
Alan Modra 2012-04-25 12:02:56 +09:30 committed by Alan Modra
parent 1bf7c2a71c
commit b427dd7ae3
10 changed files with 752 additions and 214 deletions
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34
gcc/ChangeLog
View File

@ -1,3 +1,37 @@
2012-04-25 Alan Modra <amodra@gmail.com>
* config/rs6000/rs6000 (SAVE_INLINE_VRS, REST_INLINE_VRS,
V_SAVE_INLINE, SAVRES_LR, SAVRES_SAVE, SAVRES_REG,
SAVRES_GPR, SAVRES_FPR, SAVRES_VR): Define.
(no_global_regs_above): Delete.
(no_global_regs): New function.
(rs6000_savres_strategy): Handle vector regs. Use proper lr_save_p
value for load multiple test.
(savres_routine_syms): Increase size.
(rs6000_savres_routine_name, rs6000_savres_routine_sym,
ptr_regno_for_savres, rs6000_emit_savres_rtx): Pass in int selector
rather than a number of boolean flags. Update all callers.
(rs6000_savres_routine_name): Generate vector save/restore names.
(rs6000_savres_routine_sym): Handle vector regs. Delete forward decl.
(ptr_regno_for_savres, rs6000_emit_savres_rtx): Likewise.
(rs6000_emit_prologue): Delete saving_FPRs_inline, saving_GPRs_inline
and using_store_multiple. Expand uses. Don't always use r11 as
frame reg when needed for out-of-line saves. Set up initial offset
for out-of-line vector saves when buying stack frame. Handle pointer
reg setup for out-of-line fp save. Emit call to out-of-line vector
save function. Choose r11 or r12 for vrsave reg when available for
better scheduling.
(rs6000_output_function_prologue): Don't emit .extern for ELF.
(rs6000_emit_epilogue): Choose a better frame reg when restoring
from back-chain to suit out-of-line vector restore functions. Emit
call to out-of-line vector restore function. Adjust register used
for cr restore. Tweak pointer register setup for gpr restore.
* config/rs6000/rs6000.h (FIRST_SAVED_GP_REGNO): Take into account
FIXED_R13.
* config/rs6000/sysv4.h (FP_SAVE_INLINE, GP_SAVE_INLINE): Simplify.
(V_SAVE_INLINE): Define.
* config/rs6000/altivec.md (save_vregs_*, restore_vregs_*): New insns.
2012-04-25 Alan Modra <amodra@gmail.com>
* config/rs6000/rs6000.c (rs6000_savres_strategy): Allow

62
gcc/config/rs6000/altivec.md
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@ -313,6 +313,68 @@
"TARGET_MACHO && (DEFAULT_ABI == ABI_DARWIN) && TARGET_32BIT"
"b %z1")
;; The save_vregs and restore_vregs patterns don't use memory_operand
;; because (plus (reg) (const_int)) is not a valid vector address.
;; This way is more compact than describing exactly what happens in
;; the out-of-line functions, ie. loading the constant into r11/r12
;; then using indexed addressing, and requires less editing of rtl
;; to describe the operation to dwarf2out_frame_debug_expr.
(define_insn "*save_vregs_<mode>_r11"
[(match_parallel 0 "any_parallel_operand"
[(clobber (reg:P 65))
(use (match_operand:P 1 "symbol_ref_operand" "s"))
(clobber (reg:P 11))
(use (reg:P 0))
(set (mem:V4SI (plus:P (match_operand:P 2 "gpc_reg_operand" "b")
(match_operand:P 3 "short_cint_operand" "I")))
(match_operand:V4SI 4 "gpc_reg_operand" "v"))])]
""
"bl %1"
[(set_attr "type" "branch")
(set_attr "length" "4")])
(define_insn "*save_vregs_<mode>_r12"
[(match_parallel 0 "any_parallel_operand"
[(clobber (reg:P 65))
(use (match_operand:P 1 "symbol_ref_operand" "s"))
(clobber (reg:P 12))
(use (reg:P 0))
(set (mem:V4SI (plus:P (match_operand:P 2 "gpc_reg_operand" "b")
(match_operand:P 3 "short_cint_operand" "I")))
(match_operand:V4SI 4 "gpc_reg_operand" "v"))])]
""
"bl %1"
[(set_attr "type" "branch")
(set_attr "length" "4")])
(define_insn "*restore_vregs_<mode>_r11"
[(match_parallel 0 "any_parallel_operand"
[(clobber (reg:P 65))
(use (match_operand:P 1 "symbol_ref_operand" "s"))
(clobber (reg:P 11))
(use (reg:P 0))
(set (match_operand:V4SI 2 "gpc_reg_operand" "=v")
(mem:V4SI (plus:P (match_operand:P 3 "gpc_reg_operand" "b")
(match_operand:P 4 "short_cint_operand" "I"))))])]
""
"bl %1"
[(set_attr "type" "branch")
(set_attr "length" "4")])
(define_insn "*restore_vregs_<mode>_r12"
[(match_parallel 0 "any_parallel_operand"
[(clobber (reg:P 65))
(use (match_operand:P 1 "symbol_ref_operand" "s"))
(clobber (reg:P 12))
(use (reg:P 0))
(set (match_operand:V4SI 2 "gpc_reg_operand" "=v")
(mem:V4SI (plus:P (match_operand:P 3 "gpc_reg_operand" "b")
(match_operand:P 4 "short_cint_operand" "I"))))])]
""
"bl %1"
[(set_attr "type" "branch")
(set_attr "length" "4")])
;; Simple binary operations.
;; add

662
gcc/config/rs6000/rs6000.c
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4
gcc/config/rs6000/rs6000.h
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@ -909,8 +909,8 @@ extern unsigned rs6000_pointer_size;
#define TOTAL_ALTIVEC_REGS (LAST_ALTIVEC_REGNO - FIRST_ALTIVEC_REGNO + 1)
#define FIRST_SAVED_ALTIVEC_REGNO (FIRST_ALTIVEC_REGNO+20)
#define FIRST_SAVED_FP_REGNO (14+32)
#define FIRST_SAVED_GP_REGNO 13
#define FIRST_SAVED_FP_REGNO (14+32)
#define FIRST_SAVED_GP_REGNO (FIXED_R13 ? 14 : 13)
/* List the order in which to allocate registers. Each register must be
listed once, even those in FIXED_REGISTERS.

15
gcc/config/rs6000/sysv4.h
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@ -245,13 +245,16 @@ do { \
/* Define cutoff for using external functions to save floating point.
When optimizing for size, use external functions when profitable. */
#define FP_SAVE_INLINE(FIRST_REG) (optimize_size \
? ((FIRST_REG) == 62 \
|| (FIRST_REG) == 63) \
: (FIRST_REG) < 64)
#define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) == 62 \
|| (FIRST_REG) == 63 \
|| !optimize_size)
/* And similarly for general purpose registers. */
#define GP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 32 \
&& !optimize_size)
#define GP_SAVE_INLINE(FIRST_REG) (!optimize_size)
/* And vector registers. */
#define V_SAVE_INLINE(FIRST_REG) ((FIRST_REG) == LAST_ALTIVEC_REGNO \
|| !optimize_size)
/* Put jump tables in read-only memory, rather than in .text. */
#define JUMP_TABLES_IN_TEXT_SECTION 0

7
libgcc/ChangeLog
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@ -1,3 +1,10 @@
2012-04-25 Alan Modra <amodra@gmail.com>
* config/rs6000/crtsavevr.S: New file.
* config/rs6000/crtrestvr.S: New file.
* config/rs6000/t-savresfgpr: Build the above.
* config/rs6000/t-netbsd: Likewise.
2012-04-24 Sriraman Tallam <tmsriram@google.com>
* libgcc/config/i386/i386-cpuinfo.c: Set __cpu_vendor always.

88
libgcc/config/rs6000/crtrestvr.S Normal file
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@ -0,0 +1,88 @@
/* Routines for restoring vector registers.
Copyright (C) 2012
Free Software Foundation, Inc.
Written by Alan Modra, IBM
This file 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 3, or (at your option) any
later version.
This file 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.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
/* On PowerPC64 Linux, these functions are provided by the linker. */
#ifndef __powerpc64__
#undef __ALTIVEC__
#define __ALTIVEC__ 1
#include "ppc-asm.h"
/* Called with r0 pointing just beyond the end of the vector save area. */
.section ".text"
CFI_STARTPROC
HIDDEN_FUNC(_restvr_20)
li r11,-192
lvx v20,r11,r0
HIDDEN_FUNC(_restvr_21)
li r11,-176
lvx v21,r11,r0
HIDDEN_FUNC(_restvr_22)
li r11,-160
lvx v22,r11,r0
HIDDEN_FUNC(_restvr_23)
li r11,-144
lvx v23,r11,r0
HIDDEN_FUNC(_restvr_24)
li r11,-128
lvx v24,r11,r0
HIDDEN_FUNC(_restvr_25)
li r11,-112
lvx v25,r11,r0
HIDDEN_FUNC(_restvr_26)
li r11,-96
lvx v26,r11,r0
HIDDEN_FUNC(_restvr_27)
li r11,-80
lvx v27,r11,r0
HIDDEN_FUNC(_restvr_28)
li r11,-64
lvx v28,r11,r0
HIDDEN_FUNC(_restvr_29)
li r11,-48
lvx v29,r11,r0
HIDDEN_FUNC(_restvr_30)
li r11,-32
lvx v30,r11,r0
HIDDEN_FUNC(_restvr_31)
li r11,-16
lvx v31,r11,r0
blr
FUNC_END(_restvr_31)
FUNC_END(_restvr_30)
FUNC_END(_restvr_29)
FUNC_END(_restvr_28)
FUNC_END(_restvr_27)
FUNC_END(_restvr_26)
FUNC_END(_restvr_25)
FUNC_END(_restvr_24)
FUNC_END(_restvr_23)
FUNC_END(_restvr_22)
FUNC_END(_restvr_21)
FUNC_END(_restvr_20)
CFI_ENDPROC
#endif

88
libgcc/config/rs6000/crtsavevr.S Normal file
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@ -0,0 +1,88 @@
/* Routines for saving vector registers.
Copyright (C) 2012
Free Software Foundation, Inc.
Written by Alan Modra, IBM
This file 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 3, or (at your option) any
later version.
This file 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.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
/* On PowerPC64 Linux, these functions are provided by the linker. */
#ifndef __powerpc64__
#undef __ALTIVEC__
#define __ALTIVEC__ 1
#include "ppc-asm.h"
/* Called with r0 pointing just beyond the end of the vector save area. */
.section ".text"
CFI_STARTPROC
HIDDEN_FUNC(_savevr_20)
li r11,-192
stvx v20,r11,r0
HIDDEN_FUNC(_savevr_21)
li r11,-176
stvx v21,r11,r0
HIDDEN_FUNC(_savevr_22)
li r11,-160
stvx v22,r11,r0
HIDDEN_FUNC(_savevr_23)
li r11,-144
stvx v23,r11,r0
HIDDEN_FUNC(_savevr_24)
li r11,-128
stvx v24,r11,r0
HIDDEN_FUNC(_savevr_25)
li r11,-112
stvx v25,r11,r0
HIDDEN_FUNC(_savevr_26)
li r11,-96
stvx v26,r11,r0
HIDDEN_FUNC(_savevr_27)
li r11,-80
stvx v27,r11,r0
HIDDEN_FUNC(_savevr_28)
li r11,-64
stvx v28,r11,r0
HIDDEN_FUNC(_savevr_29)
li r11,-48
stvx v29,r11,r0
HIDDEN_FUNC(_savevr_30)
li r11,-32
stvx v30,r11,r0
HIDDEN_FUNC(_savevr_31)
li r11,-16
stvx v31,r11,r0
blr
FUNC_END(_savevr_31)
FUNC_END(_savevr_30)
FUNC_END(_savevr_29)
FUNC_END(_savevr_28)
FUNC_END(_savevr_27)
FUNC_END(_savevr_26)
FUNC_END(_savevr_25)
FUNC_END(_savevr_24)
FUNC_END(_savevr_23)
FUNC_END(_savevr_22)
FUNC_END(_savevr_21)
FUNC_END(_savevr_20)
CFI_ENDPROC
#endif

4
libgcc/config/rs6000/t-netbsd
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@ -6,4 +6,6 @@ LIB2ADD_ST = \
$(srcdir)/config/rs6000/crtsavgpr.S \
$(srcdir)/config/rs6000/crtresgpr.S \
$(srcdir)/config/rs6000/crtresxfpr.S \
$(srcdir)/config/rs6000/crtresxgpr.S
$(srcdir)/config/rs6000/crtresxgpr.S \
$(srcdir)/config/rs6000/crtsavevr.S \
$(srcdir)/config/rs6000/crtrestvr.S

2
libgcc/config/rs6000/t-savresfgpr
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@ -6,6 +6,8 @@ LIB2ADD_ST += \
$(srcdir)/config/rs6000/crtresgpr.S \
$(srcdir)/config/rs6000/crtresxfpr.S \
$(srcdir)/config/rs6000/crtresxgpr.S \
$(srcdir)/config/rs6000/crtsavevr.S \
$(srcdir)/config/rs6000/crtrestvr.S \
$(srcdir)/config/rs6000/e500crtres32gpr.S \
$(srcdir)/config/rs6000/e500crtres64gpr.S \
$(srcdir)/config/rs6000/e500crtres64gprctr.S \