1 /* Export function prototypes from dojump.c. 2 Copyright (C) 2015-2018 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify it under 7 the terms of the GNU General Public License as published by the Free 8 Software Foundation; either version 3, or (at your option) any later 9 version. 10 11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12 WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 for more details. 15 16 You should have received a copy of the GNU General Public License 17 along 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. */ 25 extern void init_pending_stack_adjust (void); 26 27 /* Discard any pending stack adjustment. */ 28 extern 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. */ 32 extern void clear_pending_stack_adjust (void); 33 34 /* Pop any previously-pushed arguments that have not been popped yet. */ 35 extern void do_pending_stack_adjust (void); 36 37 /* Struct for saving/restoring of pending_stack_adjust/stack_pointer_delta 38 values. */ 39 40 struct saved_pending_stack_adjust 41 { 42 /* Saved value of pending_stack_adjust. */ 43 poly_int64 x_pending_stack_adjust; 44 45 /* Saved value of stack_pointer_delta. */ 46 poly_int64 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 53 extern void save_pending_stack_adjust (saved_pending_stack_adjust *); 54 55 /* Restore the saved pending_stack_adjust/stack_pointer_delta. */ 56 57 extern 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. */ 60 extern void jumpifnot (tree exp, rtx_code_label *label, 61 profile_probability prob); 62 extern void jumpifnot_1 (enum tree_code, tree, tree, rtx_code_label *, 63 profile_probability); 64 65 /* Generate code to evaluate EXP and jump to LABEL if the value is nonzero. */ 66 extern void jumpif (tree exp, rtx_code_label *label, profile_probability prob); 67 extern void jumpif_1 (enum tree_code, tree, tree, rtx_code_label *, 68 profile_probability); 69 70 /* Generate code to evaluate EXP and jump to IF_FALSE_LABEL if 71 the result is zero, or IF_TRUE_LABEL if the result is one. */ 72 extern void do_jump (tree exp, rtx_code_label *if_false_label, 73 rtx_code_label *if_true_label, profile_probability prob); 74 extern void do_jump_1 (enum tree_code, tree, tree, rtx_code_label *, 75 rtx_code_label *, profile_probability); 76 77 extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int, 78 machine_mode, rtx, rtx_code_label *, 79 rtx_code_label *, profile_probability); 80 81 extern bool split_comparison (enum rtx_code, machine_mode, 82 enum rtx_code *, enum rtx_code *); 83 84 #endif /* GCC_DOJUMP_H */ 85