From d975e494874f9cec2d59ac977cfc80260a773085 Mon Sep 17 00:00:00 2001 From: Sebastian Perta Date: Mon, 22 Jan 2018 17:38:26 +0000 Subject: [PATCH] rl78.md: New define_expand "smaxdi3". 2018-01-22 Sebastian Perta * config/rl78/rl78.md: New define_expand "smaxdi3". 2018-01-22 Sebastian Perta * config/rl78/smaxdi3.S: New assembly file. * config/rl78/t-rl78: Added smaxdi3.S to LIB2ADD. From-SVN: r256953 --- gcc/ChangeLog | 4 ++ gcc/config/rl78/rl78.md | 10 +++++ libgcc/ChangeLog | 5 +++ libgcc/config/rl78/smaxdi3.S | 76 ++++++++++++++++++++++++++++++++++++ libgcc/config/rl78/t-rl78 | 3 +- 5 files changed, 97 insertions(+), 1 deletion(-) create mode 100644 libgcc/config/rl78/smaxdi3.S diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fcb68f479fc..77cacb64982 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2018-01-22 Sebastian Perta + + * config/rl78/rl78.md: New define_expand "smaxdi3". + 2018-01-22 Carl Love * config/rs6000/rs6000-builtin.def (ST_ELEMREV_V1TI, LD_ELEMREV_V1TI, diff --git a/gcc/config/rl78/rl78.md b/gcc/config/rl78/rl78.md index 92c63cfce52..b456737d2d8 100644 --- a/gcc/config/rl78/rl78.md +++ b/gcc/config/rl78/rl78.md @@ -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;" +) diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index a71ab4ffc9f..1efdf9d32d9 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,8 @@ +2018-01-22 Sebastian Perta + + * config/rl78/smaxdi3.S: New assembly file. + * config/rl78/t-rl78: Added smaxdi3.S to LIB2ADD. + 2018-01-22 Sebastian Perta * config/rl78/umaxdi3.S: New assembly file. diff --git a/libgcc/config/rl78/smaxdi3.S b/libgcc/config/rl78/smaxdi3.S new file mode 100644 index 00000000000..fe52e21ad5a --- /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 +; . + + +#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 2c8194ce827..310155d186e 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 \ -- 2.30.2