Makefile.in (expmed.o, [...]): Depend on expmed.h.

gcc/
	* Makefile.in (expmed.o, target-globals.o): Depend on expmed.h.
	* expmed.h: New file.
	* expmed.c (default_target_costs): New variable.
	(this_target_costs): New conditional variable.
	(sdiv_pow2_cheap, smod_pow2_cheap, zero_cost, add_cost, neg_cost)
	(shift_cost, shiftadd_cost, shiftsub0_cost, shiftsub1_cost, mul_cost)
	(sdiv_cost, udiv_cost, mul_widen_cost, mul_highpart_cost): Delete.
	* target-globals.h (this_target_expmed): Declare.
	(target_globals): Add a expmed field.
	(restore_target_globals): Copy the expmed field to
	this_target_expmed.
	* target-globals.c: Include expmed.h.
	(default_target_globals): Initialize the expmed field.
	(save_target_globals): Likewise.

From-SVN: r162094

1 files changed, 86 insertions, 0 deletions

diff --git a/gcc/expmed.h b/gcc/expmed.h
new file mode 100644
index 0000000..fcf16dc
--- /dev/null
+++ b/gcc/expmed.h
@@ -0,0 +1,86 @@
+/* Target-dependent costs for expmed.c.
+   Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   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 EXPMED_H
+#define EXPMED_H 1
+
+/* Target-dependent globals.  */
+struct target_expmed {
+  /* Nonzero means divides or modulus operations are relatively cheap for
+     powers of two, so don't use branches; emit the operation instead.
+     Usually, this will mean that the MD file will emit non-branch
+     sequences.  */
+  bool x_sdiv_pow2_cheap[2][NUM_MACHINE_MODES];
+  bool x_smod_pow2_cheap[2][NUM_MACHINE_MODES];
+
+  /* Cost of various pieces of RTL.  Note that some of these are indexed by
+     shift count and some by mode.  */
+  int x_zero_cost[2];
+  int x_add_cost[2][NUM_MACHINE_MODES];
+  int x_neg_cost[2][NUM_MACHINE_MODES];
+  int x_shift_cost[2][NUM_MACHINE_MODES][MAX_BITS_PER_WORD];
+  int x_shiftadd_cost[2][NUM_MACHINE_MODES][MAX_BITS_PER_WORD];
+  int x_shiftsub0_cost[2][NUM_MACHINE_MODES][MAX_BITS_PER_WORD];
+  int x_shiftsub1_cost[2][NUM_MACHINE_MODES][MAX_BITS_PER_WORD];
+  int x_mul_cost[2][NUM_MACHINE_MODES];
+  int x_sdiv_cost[2][NUM_MACHINE_MODES];
+  int x_udiv_cost[2][NUM_MACHINE_MODES];
+  int x_mul_widen_cost[2][NUM_MACHINE_MODES];
+  int x_mul_highpart_cost[2][NUM_MACHINE_MODES];
+};
+
+extern struct target_expmed default_target_expmed;
+#if SWITCHABLE_TARGET
+extern struct target_expmed *this_target_expmed;
+#else
+#define this_target_expmed (&default_target_expmed)
+#endif
+
+#define sdiv_pow2_cheap \
+  (this_target_expmed->x_sdiv_pow2_cheap)
+#define smod_pow2_cheap \
+  (this_target_expmed->x_smod_pow2_cheap)
+#define zero_cost \
+  (this_target_expmed->x_zero_cost)
+#define add_cost \
+  (this_target_expmed->x_add_cost)
+#define neg_cost \
+  (this_target_expmed->x_neg_cost)
+#define shift_cost \
+  (this_target_expmed->x_shift_cost)
+#define shiftadd_cost \
+  (this_target_expmed->x_shiftadd_cost)
+#define shiftsub0_cost \
+  (this_target_expmed->x_shiftsub0_cost)
+#define shiftsub1_cost \
+  (this_target_expmed->x_shiftsub1_cost)
+#define mul_cost \
+  (this_target_expmed->x_mul_cost)
+#define sdiv_cost \
+  (this_target_expmed->x_sdiv_cost)
+#define udiv_cost \
+  (this_target_expmed->x_udiv_cost)
+#define mul_widen_cost \
+  (this_target_expmed->x_mul_widen_cost)
+#define mul_highpart_cost \
+  (this_target_expmed->x_mul_highpart_cost)
+
+#endif