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/* Print RTL functions for GCC.
Copyright (C) 2016 Free Software Foundation, Inc.
This file is part of GCC.
GCC 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.
GCC 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.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "rtl.h"
#include "alias.h"
#include "tree.h"
#include "cfg.h"
#include "flags.h"
#include "predict.h"
#include "function.h"
#include "basic-block.h"
#include "print-rtl.h"
#include "langhooks.h"
#include "emit-rtl.h"
/* Write FN to OUTFILE in a form suitable for parsing, with indentation
and comments to make the structure easy for a human to grok.
Example output:
(function "times_two"
(insn-chain
(note 1 0 4 (nil) NOTE_INSN_DELETED)
(note 4 1 2 2 [bb 2] NOTE_INSN_BASIC_BLOCK)
(insn 2 4 3 2 (set (mem/c:SI (plus:DI (reg/f:DI 82 virtual-stack-vars)
(const_int -4 [0xfffffffffffffffc])) [1 i+0 S4 A32])
(reg:SI 5 di [ i ])) t.c:2 -1
(nil))
(note 3 2 6 2 NOTE_INSN_FUNCTION_BEG)
(insn 6 3 7 2 (set (reg:SI 89)
(mem/c:SI (plus:DI (reg/f:DI 82 virtual-stack-vars)
(const_int -4 [0xfffffffffffffffc])) [1 i+0 S4 A32])) t.c:3 -1
(nil))
(insn 7 6 10 2 (parallel [
(set (reg:SI 87 [ _2 ])
(ashift:SI (reg:SI 89)
(const_int 1 [0x1])))
(clobber (reg:CC 17 flags))
]) t.c:3 -1
(expr_list:REG_EQUAL (ashift:SI (mem/c:SI (plus:DI (reg/f:DI 82 virtual-stack-vars)
(const_int -4 [0xfffffffffffffffc])) [1 i+0 S4 A32])
(const_int 1 [0x1]))
(nil)))
(insn 10 7 14 2 (set (reg:SI 88 [ <retval> ])
(reg:SI 87 [ _2 ])) t.c:3 -1
(nil))
(insn 14 10 15 2 (set (reg/i:SI 0 ax)
(reg:SI 88 [ <retval> ])) t.c:4 -1
(nil))
(insn 15 14 0 2 (use (reg/i:SI 0 ax)) t.c:4 -1
(nil))
) ;; insn-chain
(cfg
(bb 0
(edge 0 2 (flags 0x1))
) ;; bb
(bb 2
(edge 2 1 (flags 0x1))
) ;; bb
(bb 1
) ;; bb
) ;; cfg
(crtl
(return_rtx
(reg/i:SI 0 ax)
) ;; return_rtx
) ;; crtl
) ;; function "times_two"
*/
DEBUG_FUNCTION void
print_rtx_function (FILE *outfile, function *fn)
{
tree fdecl = fn->decl;
const char *dname = lang_hooks.decl_printable_name (fdecl, 2);
fprintf (outfile, "(function \"%s\"\n", dname);
/* The instruction chain. */
fprintf (outfile, " (insn-chain\n");
for (rtx_insn *insn = get_insns (); insn; insn = NEXT_INSN (insn))
print_rtl_single_with_indent (outfile, insn, 4);
fprintf (outfile, " ) ;; insn-chain\n");
/* The CFG. */
fprintf (outfile, " (cfg\n");
{
basic_block bb;
FOR_ALL_BB_FN (bb, fn)
{
fprintf (outfile, " (bb %i\n", bb->index);
edge e;
edge_iterator ei;
FOR_EACH_EDGE (e, ei, bb->succs)
fprintf (outfile, " (edge %i %i (flags 0x%x))\n",
e->src->index, e->dest->index, e->flags);
fprintf (outfile, " ) ;; bb\n");
}
}
fprintf (outfile, " ) ;; cfg\n");
/* Additional RTL state. */
fprintf (outfile, " (crtl\n");
fprintf (outfile, " (return_rtx \n");
print_rtl_single_with_indent (outfile, crtl->return_rtx, 6);
fprintf (outfile, " ) ;; return_rtx\n");
fprintf (outfile, " ) ;; crtl\n");
fprintf (outfile, ") ;; function \"%s\"\n", dname);
}
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