| /* Export function prototypes from dojump.c. |
| Copyright (C) 2015-2017 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/>. */ |
| |
| #ifndef GCC_DOJUMP_H |
| #define GCC_DOJUMP_H |
| |
| /* At the start of a function, record that we have no previously-pushed |
| arguments waiting to be popped. */ |
| extern void init_pending_stack_adjust (void); |
| |
| /* Discard any pending stack adjustment. */ |
| extern void discard_pending_stack_adjust (void); |
| |
| /* When exiting from function, if safe, clear out any pending stack adjust |
| so the adjustment won't get done. */ |
| extern void clear_pending_stack_adjust (void); |
| |
| /* Pop any previously-pushed arguments that have not been popped yet. */ |
| extern void do_pending_stack_adjust (void); |
| |
| /* Struct for saving/restoring of pending_stack_adjust/stack_pointer_delta |
| values. */ |
| |
| struct saved_pending_stack_adjust |
| { |
| /* Saved value of pending_stack_adjust. */ |
| int x_pending_stack_adjust; |
| |
| /* Saved value of stack_pointer_delta. */ |
| int x_stack_pointer_delta; |
| }; |
| |
| /* Remember pending_stack_adjust/stack_pointer_delta. |
| To be used around code that may call do_pending_stack_adjust (), |
| but the generated code could be discarded e.g. using delete_insns_since. */ |
| |
| extern void save_pending_stack_adjust (saved_pending_stack_adjust *); |
| |
| /* Restore the saved pending_stack_adjust/stack_pointer_delta. */ |
| |
| extern void restore_pending_stack_adjust (saved_pending_stack_adjust *); |
| |
| /* Generate code to evaluate EXP and jump to LABEL if the value is zero. */ |
| extern void jumpifnot (tree exp, rtx_code_label *label, int prob); |
| extern void jumpifnot_1 (enum tree_code, tree, tree, rtx_code_label *, int); |
| |
| /* Generate code to evaluate EXP and jump to LABEL if the value is nonzero. */ |
| extern void jumpif (tree exp, rtx_code_label *label, int prob); |
| extern void jumpif_1 (enum tree_code, tree, tree, rtx_code_label *, int); |
| |
| /* Generate code to evaluate EXP and jump to IF_FALSE_LABEL if |
| the result is zero, or IF_TRUE_LABEL if the result is one. */ |
| extern void do_jump (tree exp, rtx_code_label *if_false_label, |
| rtx_code_label *if_true_label, int prob); |
| extern void do_jump_1 (enum tree_code, tree, tree, rtx_code_label *, |
| rtx_code_label *, int); |
| |
| extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int, |
| machine_mode, rtx, rtx_code_label *, |
| rtx_code_label *, int); |
| |
| extern bool split_comparison (enum rtx_code, machine_mode, |
| enum rtx_code *, enum rtx_code *); |
| |
| #endif /* GCC_DOJUMP_H */ |