From e430824f28d68edd908a72677ba1b08a92e3e2ad Mon Sep 17 00:00:00 2001 From: Chung-Lin Tang Date: Tue, 31 Dec 2013 07:05:35 +0000 Subject: Commit of nios2 port to trunk: contrib/ 2013-12-31 Chung-Lin Tang * config-list.mk: Add nios2-elf, nios2-linux-gnu. Corrected ordering of some configs. gcc/ 2013-12-31 Chung-Lin Tang Sandra Loosemore Based on patches from Altera Corporation * config.gcc (nios2-*-*): Add nios2 config targets. * configure.ac (TLS_SECTION_ASM_FLAG): Add nios2 case. ("$cpu_type"): Add nios2 as new cpu type. * configure: Regenerate. * config/nios2/nios2.c: New file. * config/nios2/nios2.h: New file. * config/nios2/nios2-opts.h: New file. * config/nios2/nios2-protos.h: New file. * config/nios2/elf.h: New file. * config/nios2/elf.opt: New file. * config/nios2/linux.h: New file. * config/nios2/nios2.opt: New file. * config/nios2/nios2.md: New file. * config/nios2/predicates.md: New file. * config/nios2/constraints.md: New file. * config/nios2/t-nios2: New file. * common/config/nios2/nios2-common.c: New file. * doc/invoke.texi (Nios II options): Document Nios II specific options. * doc/md.texi (Nios II family): Document Nios II specific constraints. * doc/extend.texi (Function Specific Option Pragmas): Document Nios II supported target pragma functionality. gcc/testsuite/ 2013-12-31 Sandra Loosemore Chung-Lin Tang Based on patches from Altera Corporation * gcc.dg/stack-usage-1.c (SIZE): Define case for __nios2__. * gcc.dg/20040813-1.c: Skip for nios2-*-*. * gcc.dg/20020312-2.c: Add __nios2__ case. * g++.dg/other/PR23205.C: Skip for nios2-*-*. * g++.dg/other/pr23205-2.C: Skip for nios2-*-*. * g++.dg/cpp0x/constexpr-rom.C: Skip for nios2-*-*. * g++.dg/cpp0x/alias-decl-debug-0.C: Skip for nios2-*-*. * g++.old-deja/g++.jason/thunk3.C: Skip for nios2-*-*. * lib/target-supports.exp (check_profiling_available): Check for nios2-*-elf. * gcc.c-torture/execute/pr47237.x:: Skip for nios2-*-*. * gcc.c-torture/execute/20101011-1.c: Skip for nios2-*-*. * gcc.c-torture/execute/builtins/lib/chk.c (memset): Place char-based memset loop before inline check, to prevent problems when called to initialize .bss. Update comments. * gcc.target/nios2/nios2.exp: New DejaGNU file. * gcc.target/nios2/nios2-custom-1.c: New test. * gcc.target/nios2/nios2-trap-insn.c: New test. * gcc.target/nios2/nios2-builtin-custom.c: New test. * gcc.target/nios2/nios2-builtin-io.c: New test. * gcc.target/nios2/nios2-stack-check-1.c: New test. * gcc.target/nios2/nios2-stack-check-2.c: New test. * gcc.target/nios2/nios2-rdctl.c: New test. * gcc.target/nios2/nios2-wrctl.c: New test. * gcc.target/nios2/nios2-wrctl-zero.c: New test. * gcc.target/nios2/nios2-wrctl-not-zero.c: New test. * gcc.target/nios2/nios2-rdwrctl-1.c: New test. * gcc.target/nios2/nios2-reg-constraints.c: New test. * gcc.target/nios2/nios2-ashlsi3-one_shift.c: New test. * gcc.target/nios2/nios2-mul-options-1.c: New test. * gcc.target/nios2/nios2-mul-options-2.c: New test. * gcc.target/nios2/nios2-mul-options-3.c: New test. * gcc.target/nios2/nios2-mul-options-4.c: New test. * gcc.target/nios2/nios2-nor.c: New test. * gcc.target/nios2/nios2-stxio.c: New test. * gcc.target/nios2/custom-fp-1.c: New test. * gcc.target/nios2/custom-fp-2.c: New test. * gcc.target/nios2/custom-fp-3.c: New test. * gcc.target/nios2/custom-fp-4.c: New test. * gcc.target/nios2/custom-fp-5.c: New test. * gcc.target/nios2/custom-fp-6.c: New test. * gcc.target/nios2/custom-fp-7.c: New test. * gcc.target/nios2/custom-fp-8.c: New test. * gcc.target/nios2/custom-fp-cmp-1.c: New test. * gcc.target/nios2/custom-fp-conversion.c: New test. * gcc.target/nios2/custom-fp-double.c: New test. * gcc.target/nios2/custom-fp-float.c: New test. * gcc.target/nios2/nios2-int-types.c: New test. * gcc.target/nios2/nios2-cache-1.c: New test. * gcc.target/nios2/nios2-cache-2.c: New test. libgcc/ 2013-12-31 Sandra Loosemore Chung-Lin Tang Based on patches from Altera Corporation * config.host (nios2-*-*,nios2-*-linux*): Add nios2 host cases. * config/nios2/lib2-nios2.h: New file. * config/nios2/lib2-divmod-hi.c: New file. * config/nios2/linux-unwind.h: New file. * config/nios2/lib2-divmod.c: New file. * config/nios2/linux-atomic.c: New file. * config/nios2/t-nios2: New file. * config/nios2/crti.asm: New file. * config/nios2/t-linux: New file. * config/nios2/lib2-divtable.c: New file. * config/nios2/lib2-mul.c: New file. * config/nios2/tramp.c: New file. * config/nios2/crtn.asm: New file. From-SVN: r206256 --- libgcc/config/nios2/lib2-divmod.c | 117 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 libgcc/config/nios2/lib2-divmod.c (limited to 'libgcc/config/nios2/lib2-divmod.c') diff --git a/libgcc/config/nios2/lib2-divmod.c b/libgcc/config/nios2/lib2-divmod.c new file mode 100644 index 0000000..e5f9697 --- /dev/null +++ b/libgcc/config/nios2/lib2-divmod.c @@ -0,0 +1,117 @@ +/* Copyright (C) 2012-2013 Free Software Foundation, Inc. + Contributed by Altera and Mentor Graphics, Inc. + +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 "lib2-nios2.h" + +/* 32-bit SI divide and modulo as used in Nios II. */ + +static USItype +udivmodsi4 (USItype num, USItype den, word_type modwanted) +{ + USItype bit = 1; + USItype res = 0; + + while (den < num && bit && !(den & (1L<<31))) + { + den <<=1; + bit <<=1; + } + while (bit) + { + if (num >= den) + { + num -= den; + res |= bit; + } + bit >>=1; + den >>=1; + } + if (modwanted) + return num; + return res; +} + + +SItype +__divsi3 (SItype a, SItype b) +{ + word_type neg = 0; + SItype res; + + if (a < 0) + { + a = -a; + neg = !neg; + } + + if (b < 0) + { + b = -b; + neg = !neg; + } + + res = udivmodsi4 (a, b, 0); + + if (neg) + res = -res; + + return res; +} + + +SItype +__modsi3 (SItype a, SItype b) +{ + word_type neg = 0; + SItype res; + + if (a < 0) + { + a = -a; + neg = 1; + } + + if (b < 0) + b = -b; + + res = udivmodsi4 (a, b, 1); + + if (neg) + res = -res; + + return res; +} + + +SItype +__udivsi3 (SItype a, SItype b) +{ + return udivmodsi4 (a, b, 0); +} + + +SItype +__umodsi3 (SItype a, SItype b) +{ + return udivmodsi4 (a, b, 1); +} + -- cgit v1.1