1/* Export function prototypes from dojump.c. 2 Copyright (C) 2015-2016 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 3, or (at your option) any later 9version. 10 11GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14for more details. 15 16You should have received a copy of the GNU General Public License 17along with GCC; see the file COPYING3. If not see 18<http://www.gnu.org/licenses/>. */ 19 20#ifndef GCC_DOJUMP_H 21#define GCC_DOJUMP_H 22 23/* At the start of a function, record that we have no previously-pushed 24 arguments waiting to be popped. */ 25extern void init_pending_stack_adjust (void); 26 27/* Discard any pending stack adjustment. */ 28extern void discard_pending_stack_adjust (void); 29 30/* When exiting from function, if safe, clear out any pending stack adjust 31 so the adjustment won't get done. */ 32extern void clear_pending_stack_adjust (void); 33 34/* Pop any previously-pushed arguments that have not been popped yet. */ 35extern void do_pending_stack_adjust (void); 36 37/* Struct for saving/restoring of pending_stack_adjust/stack_pointer_delta 38 values. */ 39 40struct saved_pending_stack_adjust 41{ 42 /* Saved value of pending_stack_adjust. */ 43 int x_pending_stack_adjust; 44 45 /* Saved value of stack_pointer_delta. */ 46 int x_stack_pointer_delta; 47}; 48 49/* Remember pending_stack_adjust/stack_pointer_delta. 50 To be used around code that may call do_pending_stack_adjust (), 51 but the generated code could be discarded e.g. using delete_insns_since. */ 52 53extern void save_pending_stack_adjust (saved_pending_stack_adjust *); 54 55/* Restore the saved pending_stack_adjust/stack_pointer_delta. */ 56 57extern void restore_pending_stack_adjust (saved_pending_stack_adjust *); 58 59/* Generate code to evaluate EXP and jump to LABEL if the value is zero. */ 60extern void jumpifnot (tree, rtx, int); 61extern void jumpifnot_1 (enum tree_code, tree, tree, rtx, int); 62 63/* Generate code to evaluate EXP and jump to LABEL if the value is nonzero. */ 64extern void jumpif (tree, rtx, int); 65extern void jumpif_1 (enum tree_code, tree, tree, rtx, int); 66 67/* Generate code to evaluate EXP and jump to IF_FALSE_LABEL if 68 the result is zero, or IF_TRUE_LABEL if the result is one. */ 69extern void do_jump (tree, rtx, rtx, int); 70extern void do_jump_1 (enum tree_code, tree, tree, rtx, rtx, int); 71 72extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int, 73 machine_mode, rtx, rtx, rtx, int); 74 75extern bool split_comparison (enum rtx_code, machine_mode, 76 enum rtx_code *, enum rtx_code *); 77 78#endif /* GCC_DOJUMP_H */ 79