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rl78.md: New define_expand "smaxdi3". 

2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>

	* config/rl78/rl78.md: New define_expand "smaxdi3".

2018-01-22  Sebastian Perta  <sebastian.perta@renesas.com>
 
	* config/rl78/smaxdi3.S: New assembly file.
	* config/rl78/t-rl78: Added smaxdi3.S to LIB2ADD.

From-SVN: r256953
This commit is contained in:
Sebastian Perta 2018-01-22 17:38:26 +00:00 committed by Sebastian Perta
parent d10cff958f
commit d975e49487
5 changed files with 97 additions and 1 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2018-01-22 Sebastian Perta <sebastian.perta@renesas.com>
* config/rl78/rl78.md: New define_expand "smaxdi3".
2018-01-22 Carl Love <cel@us.ibm.com>
* config/rs6000/rs6000-builtin.def (ST_ELEMREV_V1TI, LD_ELEMREV_V1TI,

10
gcc/config/rl78/rl78.md
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@ -728,3 +728,13 @@
"rl78_emit_libcall (\"__umaxdi3\", UMAX, DImode, DImode, 3, operands);
DONE;"
)
(define_expand "smaxdi3"
[(set (match_operand:DI 0 "nonimmediate_operand" "")
(smax:DI (match_operand:DI 1 "general_operand" "")
(match_operand:DI 2 "general_operand" "")))
]
"optimize_size"
"rl78_emit_libcall (\"__smaxdi3\", SMAX, DImode, DImode, 3, operands);
DONE;"
)

5
libgcc/ChangeLog
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@ -1,3 +1,8 @@
2018-01-22 Sebastian Perta <sebastian.perta@renesas.com>
* config/rl78/smaxdi3.S: New assembly file.
* config/rl78/t-rl78: Added smaxdi3.S to LIB2ADD.
2018-01-22 Sebastian Perta <sebastian.perta@renesas.com>
* config/rl78/umaxdi3.S: New assembly file.

76
libgcc/config/rl78/smaxdi3.S Normal file
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@ -0,0 +1,76 @@
; Copyright (C) 2017 Free Software Foundation, Inc.
; Contributed by Sebastian Perta.
;
; 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/>.
#include "vregs.h"
.text
START_FUNC ___smaxdi3
; copy first argument/operand to the output registers
movw ax, [sp+4]
movw r8, ax
movw ax, [sp+6]
movw r10, ax
movw ax, [sp+8]
movw r12, ax
movw ax, [sp+10]
movw r14, ax
; use 16-bit compares from the most significant words downto the least significant ones
movw ax, [sp+18]
cmpw ax, r14
xor1 CY, a.7 ; first compare accounts for the
xor1 CY, r15.7 ; sign bits of the two operands
bh $.L1
bnz $.L2
movw ax, [sp+16]
cmpw ax, r12
bh $.L1
bnz $.L2
movw ax, [sp+14]
cmpw ax, r10
bh $.L1
bnz $.L2
movw ax, [sp+12]
cmpw ax, r8
bh $.L1
ret
.L1:
; copy second argument/operand to the output registers
movw ax, [sp+12]
movw r8, ax
movw ax, [sp+14]
movw r10, ax
movw ax, [sp+16]
movw r12, ax
movw ax, [sp+18]
movw r14, ax
.L2:
ret
END_FUNC ___smaxdi3

3
libgcc/config/rl78/t-rl78
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@ -33,7 +33,8 @@ LIB2ADD = \
$(srcdir)/config/rl78/cmpsi2.S \
$(srcdir)/config/rl78/adddi3.S \
$(srcdir)/config/rl78/subdi3.S \
$(srcdir)/config/rl78/umaxdi3.S
$(srcdir)/config/rl78/umaxdi3.S \
$(srcdir)/config/rl78/smaxdi3.S
LIB2FUNCS_EXCLUDE = _clzhi2 _clzsi2 _ctzhi2 _ctzsi2 \
_popcounthi2 _popcountsi2 \