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defaults.h (SLOW_UNALIGNED_ACCESS): Provide default definition.

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gcc/
	* defaults.h (SLOW_UNALIGNED_ACCESS): Provide default definition.
	* expmed.c (SLOW_UNALIGNED_ACCESS): Remove default definition.
	* expr.c (SLOW_UNALIGNED_ACCESS): Likewise.
	* lra-constraints.c (SLOW_UNALIGNED_ACCESS): Likewise.
	(simplify_operand_subreg): Don't check STRICT_ALIGNMENT here.

From-SVN: r192992
This commit is contained in:
Richard Sandiford 2012-10-30 19:07:28 +00:00 • committed by Richard Sandiford
parent 63cf72605a
commit 08e931f3b7
5 changed files with 13 additions and 17 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2012-10-30 Richard Sandiford <rdsandiford@googlemail.com>
* defaults.h (SLOW_UNALIGNED_ACCESS): Provide default definition.
* expmed.c (SLOW_UNALIGNED_ACCESS): Remove default definition.
* expr.c (SLOW_UNALIGNED_ACCESS): Likewise.
* lra-constraints.c (SLOW_UNALIGNED_ACCESS): Likewise.
(simplify_operand_subreg): Don't check STRICT_ALIGNMENT here.
2012-10-30 Jan Hubicka <jh@suse.cz>
* ipa-inline-analysis.c (eliminated_by_inlining_prob): Cleanup.

4
gcc/defaults.h
View file

@ -1218,6 +1218,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#define ATTRIBUTE_ALIGNED_VALUE BIGGEST_ALIGNMENT
#endif
#ifndef SLOW_UNALIGNED_ACCESS
#define SLOW_UNALIGNED_ACCESS(MODE, ALIGN) STRICT_ALIGNMENT
#endif
/* For most ports anything that evaluates to a constant symbolic
or integer value is acceptable as a constant address. */
#ifndef CONSTANT_ADDRESS_P

5
gcc/expmed.c
View file

@ -69,11 +69,6 @@ static rtx expand_sdiv_pow2 (enum machine_mode, rtx, HOST_WIDE_INT);
/* Test whether a value is zero of a power of two. */
#define EXACT_POWER_OF_2_OR_ZERO_P(x) (((x) & ((x) - 1)) == 0)
#ifndef SLOW_UNALIGNED_ACCESS
#define SLOW_UNALIGNED_ACCESS(MODE, ALIGN) STRICT_ALIGNMENT
#endif
/* Reduce conditional compilation elsewhere. */
#ifndef HAVE_insv
#define HAVE_insv 0

6
gcc/expr.c
View file

@ -189,12 +189,6 @@ static void write_complex_part (rtx, rtx, bool);
(move_by_pieces_ninsns (SIZE, ALIGN, STORE_MAX_PIECES + 1) \
< (unsigned int) MOVE_RATIO (optimize_insn_for_speed_p ()))
#endif
/* SLOW_UNALIGNED_ACCESS is nonzero if unaligned accesses are very slow. */
#ifndef SLOW_UNALIGNED_ACCESS
#define SLOW_UNALIGNED_ACCESS(MODE, ALIGN) STRICT_ALIGNMENT
#endif
/* This is run to set up which modes can be used
directly in memory and to initialize the block move optab. It is run

7
gcc/lra-constraints.c
View file

@ -1107,10 +1107,6 @@ process_addr_reg (rtx *loc, rtx *before, rtx *after, enum reg_class cl)
return true;
}
#ifndef SLOW_UNALIGNED_ACCESS
#define SLOW_UNALIGNED_ACCESS(mode, align) 0
#endif
/* Make reloads for subreg in operand NOP with internal subreg mode
REG_MODE, add new reloads for further processing. Return true if
any reload was generated. */
@ -1134,8 +1130,7 @@ simplify_operand_subreg (int nop, enum machine_mode reg_mode)
address might violate the necessary alignment or the access might
be slow. So take this into consideration. */
if ((MEM_P (reg)
&& ((! STRICT_ALIGNMENT
&& ! SLOW_UNALIGNED_ACCESS (mode, MEM_ALIGN (reg)))
&& (! SLOW_UNALIGNED_ACCESS (mode, MEM_ALIGN (reg))
|| MEM_ALIGN (reg) >= GET_MODE_ALIGNMENT (mode)))
|| (REG_P (reg) && REGNO (reg) < FIRST_PSEUDO_REGISTER))
{