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i386-protos.h (x86_field_alignment): Declare.

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* i386-protos.h (x86_field_alignment): Declare.
	* i386.c (x86_field_alignment): Define.
	* i386.h (ADJUST_FIELD_ALIGNMENT): New.
	(BIGGEST_FIELD_ALIGNMENT): Kill.

From-SVN: r54674
This commit is contained in:
Jan Hubicka 2002-06-16 22:18:25 +02:00 • committed by Jan Hubicka
parent 7ee0238171
commit e932b21b18
4 changed files with 28 additions and 7 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
Sun Jun 16 22:16:10 CEST 2002 Jan Hubicka <jh@suse.cz>
* i386-protos.h (x86_field_alignment): Declare.
* i386.c (x86_field_alignment): Define.
* i386.h (ADJUST_FIELD_ALIGNMENT): New.
(BIGGEST_FIELD_ALIGNMENT): Kill.
2002-06-16 Richard Henderson <rth@redhat.com>
* vax.md (casesi): Use emit_jump_insn. Tidy expander pattern.

1
gcc/config/i386/i386-protos.h
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@ -205,6 +205,7 @@ extern unsigned int i386_pe_section_type_flags PARAMS ((tree, const char *,
int));
extern void i386_pe_asm_named_section PARAMS ((const char *, unsigned int));
extern void x86_output_mi_thunk PARAMS ((FILE *, int, tree));
extern int x86_field_alignment PARAMS ((tree, int));
#endif
extern rtx ix86_tls_get_addr PARAMS ((void));

17
gcc/config/i386/i386.c
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@ -13803,4 +13803,21 @@ x86_output_mi_thunk (file, delta, function)
}
}
int
x86_field_alignment (field, computed)
tree field;
int computed;
{
enum machine_mode mode;
if (TARGET_64BIT || DECL_USER_ALIGN (field) || TARGET_ALIGN_DOUBLE)
return computed;
mode = TYPE_MODE (TREE_CODE (TREE_TYPE (field)) == ARRAY_TYPE
? get_inner_array_type (field) : TREE_TYPE (field));
if ((mode == DFmode || mode == DCmode
|| mode == DImode || mode == CDImode)
&& !TARGET_ALIGN_DOUBLE)
return MIN (32, computed);
return computed;
}
#include "gt-i386.h"

10
gcc/config/i386/i386.h
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@ -714,13 +714,9 @@ extern int x86_prefetch_sse;
/* The published ABIs say that doubles should be aligned on word
boundaries, so lower the aligment for structure fields unless
-malign-double is set. */
/* BIGGEST_FIELD_ALIGNMENT is also used in libobjc, where it must be
constant. Use the smaller value in that context. */
#ifndef IN_TARGET_LIBS
#define BIGGEST_FIELD_ALIGNMENT (TARGET_64BIT ? 128 : (TARGET_ALIGN_DOUBLE ? 64 : 32))
#else
#define BIGGEST_FIELD_ALIGNMENT 32
#endif
#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
x86_field_alignment (FIELD, COMPUTED)
/* If defined, a C expression to compute the alignment given to a
constant that is being placed in memory. EXP is the constant