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| author | Sebastian Perta <sebastian.perta@renesas.com> | 2018-01-22 17:38:26 +0000 |
|---|---|---|
| committer | Sebastian Perta <sebastianperta@gcc.gnu.org> | 2018-01-22 17:38:26 +0000 |
| commit | d975e494874f9cec2d59ac977cfc80260a773085 (patch) | |
| tree | ca80a5f5323eca9224f3b9931571572aa727e5c6 /libgcc | |
| parent | d10cff958f5e180817c088d3e80e9f22d1a8f172 (diff) | |
| download | gcc-d975e494874f9cec2d59ac977cfc80260a773085.zip gcc-d975e494874f9cec2d59ac977cfc80260a773085.tar.gz gcc-d975e494874f9cec2d59ac977cfc80260a773085.tar.bz2 | |
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
Diffstat (limited to 'libgcc')
| -rw-r--r-- | libgcc/ChangeLog | 5 | ||||
| -rw-r--r-- | libgcc/config/rl78/smaxdi3.S | 76 | ||||
| -rw-r--r-- | libgcc/config/rl78/t-rl78 | 3 |
3 files changed, 83 insertions, 1 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index a71ab4f..1efdf9d 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,5 +1,10 @@ 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. * config/rl78/t-rl78: Added umaxdi3.S to LIB2ADD. diff --git a/libgcc/config/rl78/smaxdi3.S b/libgcc/config/rl78/smaxdi3.S new file mode 100644 index 0000000..fe52e21 --- /dev/null +++ b/libgcc/config/rl78/smaxdi3.S @@ -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 diff --git a/libgcc/config/rl78/t-rl78 b/libgcc/config/rl78/t-rl78 index 2c8194c..310155d 100644 --- a/libgcc/config/rl78/t-rl78 +++ b/libgcc/config/rl78/t-rl78 @@ -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 \ |