/* Export function prototypes from dojump.c.
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Copyright (C) 2015-2017 Free Software Foundation, Inc.
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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 under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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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#ifndef GCC_DOJUMP_H
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#define GCC_DOJUMP_H
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/* At the start of a function, record that we have no previously-pushed
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arguments waiting to be popped. */
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extern void init_pending_stack_adjust (void);
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/* Discard any pending stack adjustment. */
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extern void discard_pending_stack_adjust (void);
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/* When exiting from function, if safe, clear out any pending stack adjust
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so the adjustment won't get done. */
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extern void clear_pending_stack_adjust (void);
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/* Pop any previously-pushed arguments that have not been popped yet. */
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extern void do_pending_stack_adjust (void);
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/* Struct for saving/restoring of pending_stack_adjust/stack_pointer_delta
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values. */
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struct saved_pending_stack_adjust
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{
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/* Saved value of pending_stack_adjust. */
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int x_pending_stack_adjust;
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/* Saved value of stack_pointer_delta. */
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int x_stack_pointer_delta;
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};
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/* Remember pending_stack_adjust/stack_pointer_delta.
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To be used around code that may call do_pending_stack_adjust (),
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but the generated code could be discarded e.g. using delete_insns_since. */
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extern void save_pending_stack_adjust (saved_pending_stack_adjust *);
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/* Restore the saved pending_stack_adjust/stack_pointer_delta. */
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extern void restore_pending_stack_adjust (saved_pending_stack_adjust *);
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/* Generate code to evaluate EXP and jump to LABEL if the value is zero. */
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extern void jumpifnot (tree exp, rtx_code_label *label, int prob);
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extern void jumpifnot_1 (enum tree_code, tree, tree, rtx_code_label *, int);
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/* Generate code to evaluate EXP and jump to LABEL if the value is nonzero. */
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extern void jumpif (tree exp, rtx_code_label *label, int prob);
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extern void jumpif_1 (enum tree_code, tree, tree, rtx_code_label *, int);
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/* Generate code to evaluate EXP and jump to IF_FALSE_LABEL if
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the result is zero, or IF_TRUE_LABEL if the result is one. */
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extern void do_jump (tree exp, rtx_code_label *if_false_label,
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rtx_code_label *if_true_label, int prob);
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extern void do_jump_1 (enum tree_code, tree, tree, rtx_code_label *,
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rtx_code_label *, int);
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extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int,
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machine_mode, rtx, rtx_code_label *,
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rtx_code_label *, int);
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extern bool split_comparison (enum rtx_code, machine_mode,
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enum rtx_code *, enum rtx_code *);
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#endif /* GCC_DOJUMP_H */
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