8d2af3a25b
ChangeLog: 2019-06-19 Dimitar Dimitrov <dimitar@dinux.eu> * configure: Regenerate. * configure.ac: Add PRU target. gcc/ChangeLog: 2019-06-19 Dimitar Dimitrov <dimitar@dinux.eu> * common/config/pru/pru-common.c: New file. * config.gcc: Add PRU target. * config/pru/alu-zext.md: New file. * config/pru/constraints.md: New file. * config/pru/predicates.md: New file. * config/pru/pru-opts.h: New file. * config/pru/pru-passes.c: New file. * config/pru/pru-pragma.c: New file. * config/pru/pru-protos.h: New file. * config/pru/pru.c: New file. * config/pru/pru.h: New file. * config/pru/pru.md: New file. * config/pru/pru.opt: New file. * config/pru/t-pru: New file. * doc/extend.texi: Document PRU pragmas. * doc/invoke.texi: Document PRU-specific options. * doc/md.texi: Document PRU asm constraints. From-SVN: r272202
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/* PRU target specific pragmas
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Copyright (C) 2015-2019 Free Software Foundation, Inc.
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Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#define IN_TARGET_CODE 1
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "alias.h"
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#include "symtab.h"
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#include "tree.h"
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#include "c-family/c-pragma.h"
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#include "c-family/c-common.h"
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#include "diagnostic-core.h"
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#include "cpplib.h"
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#include "pru-protos.h"
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/* Implements the "pragma CTABLE_ENTRY" pragma. This pragma takes a
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CTABLE index and an address, and instructs the compiler that
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LBCO/SBCO can be used on that base address.
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WARNING: Only immediate constant addresses are currently supported. */
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static void
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pru_pragma_ctable_entry (cpp_reader * reader ATTRIBUTE_UNUSED)
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{
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tree ctable_index, base_addr;
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enum cpp_ttype type;
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type = pragma_lex (&ctable_index);
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if (type == CPP_NUMBER && tree_fits_uhwi_p (ctable_index))
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{
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type = pragma_lex (&base_addr);
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if (type == CPP_NUMBER && tree_fits_uhwi_p (base_addr))
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{
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unsigned HOST_WIDE_INT i = tree_to_uhwi (ctable_index);
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unsigned HOST_WIDE_INT base = tree_to_uhwi (base_addr);
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type = pragma_lex (&base_addr);
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if (type != CPP_EOF)
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error ("junk at end of %<#pragma CTABLE_ENTRY%>");
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else if (i >= ARRAY_SIZE (pru_ctable))
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error ("%<CTABLE_ENTRY%> index %" HOST_WIDE_INT_PRINT "d"
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" is not valid", i);
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else if (pru_ctable[i].valid && pru_ctable[i].base != base)
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error ("redefinition of %<CTABLE_ENTRY "
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"%" HOST_WIDE_INT_PRINT "d%>", i);
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else
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{
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if (base & 0xff)
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warning (0, "%<CTABLE_ENTRY%> base address is not "
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"a multiple of 256");
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pru_ctable[i].base = base;
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pru_ctable[i].valid = true;
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}
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return;
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}
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}
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error ("malformed %<#pragma CTABLE_ENTRY%> variable address");
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}
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/* Implements REGISTER_TARGET_PRAGMAS. */
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void
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pru_register_pragmas (void)
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{
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c_register_pragma (NULL, "ctable_entry", pru_pragma_ctable_entry);
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c_register_pragma (NULL, "CTABLE_ENTRY", pru_pragma_ctable_entry);
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}
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