* config/i386/i386.md (and<mode>3): Generate zero-extends for

[thirdparty/gcc.git] / gcc / ssa.h

diff --git a/gcc/ssa.h b/gcc/ssa.h
index bf9a04106fc1e77d9657ff1cb4c6eae8fb3492f3..56a8d103965a79f849192f09c028883c85bfb4a5 100644 (file)
--- a/gcc/ssa.h
+++ b/gcc/ssa.h
@@ -1,71 +1,33 @@
-/* Static Single Assignment (SSA) definitions for GNU C-Compiler
-   Copyright (C) 2000, 2001 Free Software Foundation, Inc.
-   Written by Jeffrey D. Oldham <oldham@codesourcery.com>.
+/* Common SSA files
+   Copyright (C) 2015-2019 Free Software Foundation, Inc.
 
-This file is part of GNU CC.
+This file is part of GCC.
 
-GNU CC 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 2, or (at your option)
-any later version.
+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.
 
-GNU CC 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.
+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 GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
 
+#ifndef GCC_SSA_H
+#define GCC_SSA_H
 
-/* Main SSA routines.  */
-extern void convert_to_ssa             PARAMS ((void));
-extern void convert_from_ssa           PARAMS ((void));
-typedef int (*successor_phi_fn)         PARAMS ((rtx, int, int, void *));
-extern int for_each_successor_phi       PARAMS ((basic_block bb,
-                                                successor_phi_fn,
-                                                void *));
-void compute_dominance_frontiers       PARAMS ((sbitmap *frontiers, int *idom));
-extern int remove_phi_alternative      PARAMS ((rtx, basic_block));
+/* This is an aggregation header file. This means it should contain only
+   other include files.  */
 
+#include "stringpool.h"
+#include "gimple-ssa.h"
+#include "tree-vrp.h"
+#include "tree-ssanames.h"
+#include "tree-phinodes.h"
+#include "ssa-iterators.h" 
 
-/* Optimizations.  */
-/* In ssa-dce.c */
-extern void ssa_eliminate_dead_code    PARAMS ((void));
-
-/* In ssa-ccp.c */
-extern void ssa_const_prop             PARAMS ((void));
-
-
-/* SSA definitions and uses.  */
-/* This flag is set when the CFG is in SSA form.  */
-extern int in_ssa_form;
-
-/* Element I is the single instruction that sets register I.  */
-extern varray_type ssa_definition;
-
-/* Element I is an INSN_LIST of instructions that use register I.  */
-extern varray_type ssa_uses;
-
-
-/* Specify which hard registers should be converted.  */
-
-/* All pseudo-registers (having register number >=
-   FIRST_PSEUDO_REGISTER) and hard registers satisfying
-   CONVERT_HARD_REGISTER_TO_SSA_P are converted to SSA form.  */
-
-/* Given a hard register number REG_NO, return nonzero if and only if
-   the register should be converted to SSA.  */
-
-#ifndef CONVERT_HARD_REGISTER_TO_SSA_P
-#define CONVERT_HARD_REGISTER_TO_SSA_P(REG_NO) (0) /* default of no hard registers */
-#endif /* CONVERT_HARD_REGISTER_TO_SSA_P  */
-
-/* Given a register number REG_NO, return nonzero if and only if the
-   register should be converted to SSA.  */
-
-#define CONVERT_REGISTER_TO_SSA_P(REG_NO)      \
-       ((!HARD_REGISTER_NUM_P (REG_NO)) || \
-        (CONVERT_HARD_REGISTER_TO_SSA_P (REG_NO)))
+#endif  /* GCC_SSA_H  */