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rs6000.c (rs6000_alignment_string, [...]): New variables.
2003-05-18 Kevin B. Hendricks <kevin.hendricks@sympatico.ca>
David Edelsohn <edelsohn@gnu.org>
* config/rs6000/rs6000.c (rs6000_alignment_string,
rs6000_alignment_flags): New variables.
(rs6000_parse_alignment_option): New function.
(rs6000_override_options): Call it.
* config/rs6000/rs6000.h (TARGET_OPTIONS): Add -malign-XXX option.
(MASK_ALIGN_POWER, MASK_ALIGN_NATURAL, TARGET_ALIGN_NATURAL): New
macros.
* config/rs6000/aix.h (ADJUST_FIELD_ALIGN): Always use COMPUTED
natural alignment if TARGET_NATURAL_ALIGNMENT
(ROUND_TYPE_ALIGN): Always use default record alignment if
TAGET_NATURAL_ALIGNMENT.
* config/rs6000/darwin.h (ADJUST_FIELD_ALIGN): Same
(ROUND_TYPE_ALIGN): Same.
* config/rs6000/linux64.h (ADJUST_FIELD_ALIGN): Same
(ROUND_TYPE_ALIGN): Same.
Co-Authored-By: David Edelsohn <edelsohn@gnu.org>
From-SVN: r66967
This commit is contained in:
Kevin B. Hendricks
David Edelsohn
parent
52a8b7b838
commit
025d9908d3
@ -1,3 +1,22 @@
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2003-05-19 Kevin B. Hendricks <kevin.hendricks@sympatico.ca>
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David Edelsohn <edelsohn@gnu.org>
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* config/rs6000/rs6000.c (rs6000_alignment_string,
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rs6000_alignment_flags): New variables.
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(rs6000_parse_alignment_option): New function.
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(rs6000_override_options): Call it.
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* config/rs6000/rs6000.h (TARGET_OPTIONS): Add -malign-XXX option.
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(MASK_ALIGN_POWER, MASK_ALIGN_NATURAL, TARGET_ALIGN_NATURAL): New
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macros.
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* config/rs6000/aix.h (ADJUST_FIELD_ALIGN): Always use COMPUTED
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natural alignment if TARGET_NATURAL_ALIGNMENT
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(ROUND_TYPE_ALIGN): Always use default record alignment if
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TAGET_NATURAL_ALIGNMENT.
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* config/rs6000/darwin.h (ADJUST_FIELD_ALIGN): Same
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(ROUND_TYPE_ALIGN): Same.
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* config/rs6000/linux64.h (ADJUST_FIELD_ALIGN): Same
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(ROUND_TYPE_ALIGN): Same.
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2003-05-19 J"orn Rennecke <joern.rennecke@superh.com>
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* c-decl.c (finish_decl): When setting the DECL_ASSEMBLER_NAME
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@ -128,12 +128,14 @@
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#define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
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%{p:-L/lib/profiled -L/usr/lib/profiled} %{!shared:%{g*:-lg}} -lc"
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/* This now supports a natural alignment mode. */
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/* AIX word-aligns FP doubles but doubleword-aligns 64-bit ints. */
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#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
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(TARGET_ALIGN_NATURAL ? (COMPUTED) : \
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(TYPE_MODE (TREE_CODE (TREE_TYPE (FIELD)) == ARRAY_TYPE \
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? get_inner_array_type (FIELD) \
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: TREE_TYPE (FIELD)) == DFmode \
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? MIN ((COMPUTED), 32) : (COMPUTED))
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? MIN ((COMPUTED), 32) : (COMPUTED)))
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/* AIX increases natural record alignment to doubleword if the first
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field is an FP double while the FP fields remain word aligned. */
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@ -142,6 +144,7 @@
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|| TREE_CODE (STRUCT) == UNION_TYPE \
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|| TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \
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&& TYPE_FIELDS (STRUCT) != 0 \
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&& TARGET_ALIGN_NATURAL == 0 \
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&& DECL_MODE (TYPE_FIELDS (STRUCT)) == DFmode \
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? MAX (MAX ((COMPUTED), (SPECIFIED)), 64) \
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: MAX ((COMPUTED), (SPECIFIED)))
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@ -250,12 +250,14 @@ do { \
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/* Fix for emit_group_load (): force large constants to be pushed via regs. */
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#define ALWAYS_PUSH_CONSTS_USING_REGS_P 1
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/* This now supports a natural alignment mode */
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/* Darwin word-aligns FP doubles but doubleword-aligns 64-bit ints. */
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#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
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(TARGET_ALIGN_NATURAL ? (COMPUTED) : \
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(TYPE_MODE (TREE_CODE (TREE_TYPE (FIELD)) == ARRAY_TYPE \
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? get_inner_array_type (FIELD) \
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: TREE_TYPE (FIELD)) == DFmode \
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? MIN ((COMPUTED), 32) : (COMPUTED))
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? MIN ((COMPUTED), 32) : (COMPUTED)))
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/* Darwin increases natural record alignment to doubleword if the first
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field is an FP double while the FP fields remain word aligned. */
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@ -264,6 +266,7 @@ do { \
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|| TREE_CODE (STRUCT) == UNION_TYPE \
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|| TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \
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&& TYPE_FIELDS (STRUCT) != 0 \
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&& TARGET_ALIGN_NATURAL == 0 \
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&& DECL_MODE (TYPE_FIELDS (STRUCT)) == DFmode \
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? MAX (MAX ((COMPUTED), (SPECIFIED)), 64) \
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: (TARGET_ALTIVEC && TREE_CODE (STRUCT) == VECTOR_TYPE) \
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@ -119,13 +119,15 @@
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#define USER_LABEL_PREFIX ""
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/* This now supports a natural alignment mode. */
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/* AIX word-aligns FP doubles but doubleword-aligns 64-bit ints. */
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#undef ADJUST_FIELD_ALIGN
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#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
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(TARGET_ALIGN_NATURAL ? (COMPUTED) : \
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(TYPE_MODE (TREE_CODE (TREE_TYPE (FIELD)) == ARRAY_TYPE \
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? get_inner_array_type (FIELD) \
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: TREE_TYPE (FIELD)) == DFmode \
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? MIN ((COMPUTED), 32) : (COMPUTED))
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? MIN ((COMPUTED), 32) : (COMPUTED)))
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/* AIX increases natural record alignment to doubleword if the first
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field is an FP double while the FP fields remain word aligned. */
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@ -135,6 +137,7 @@
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|| TREE_CODE (STRUCT) == UNION_TYPE \
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|| TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \
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&& TYPE_FIELDS (STRUCT) != 0 \
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&& TARGET_ALIGN_NATURAL == 0 \
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&& DECL_MODE (TYPE_FIELDS (STRUCT)) == DFmode \
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? MAX (MAX ((COMPUTED), (SPECIFIED)), 64) \
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: MAX ((COMPUTED), (SPECIFIED)))
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@ -178,6 +178,11 @@ static int rs6000_sr_alias_set;
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int rs6000_default_long_calls;
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const char *rs6000_longcall_switch;
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/* Control alignment for fields within structures. */
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/* String from -malign-XXXXX. */
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const char *rs6000_alignment_string;
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int rs6000_alignment_flags;
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struct builtin_description
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{
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/* mask is not const because we're going to alter it below. This
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@ -290,6 +295,7 @@ static rtx altivec_expand_abs_builtin PARAMS ((enum insn_code, tree, rtx));
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static rtx altivec_expand_predicate_builtin PARAMS ((enum insn_code, const char *, tree, rtx));
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static rtx altivec_expand_stv_builtin PARAMS ((enum insn_code, tree));
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static void rs6000_parse_abi_options PARAMS ((void));
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static void rs6000_parse_alignment_option PARAMS ((void));
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static void rs6000_parse_tls_size_option PARAMS ((void));
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static void rs6000_parse_yes_no_option (const char *, const char *, int *);
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static int first_altivec_reg_to_save PARAMS ((void));
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@ -739,6 +745,9 @@ rs6000_override_options (default_cpu)
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/* Handle -mabi= options. */
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rs6000_parse_abi_options ();
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/* Handle -malign-XXXXX option. */
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rs6000_parse_alignment_option ();
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/* Handle generic -mFOO=YES/NO options. */
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rs6000_parse_yes_no_option ("vrsave", rs6000_altivec_vrsave_string,
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&rs6000_altivec_vrsave);
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@ -888,6 +897,20 @@ rs6000_parse_abi_options ()
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error ("unknown ABI specified: '%s'", rs6000_abi_string);
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}
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/* Handle -malign-XXXXXX options. */
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static void
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rs6000_parse_alignment_option ()
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{
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if (rs6000_alignment_string == 0
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|| ! strcmp (rs6000_alignment_string, "power"))
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rs6000_alignment_flags = MASK_ALIGN_POWER;
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else if (! strcmp (rs6000_alignment_string, "natural"))
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rs6000_alignment_flags = MASK_ALIGN_NATURAL;
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else
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error ("unknown -malign-XXXXX option specified: '%s'",
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rs6000_alignment_string);
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}
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/* Validate and record the size specified with the -mtls-size option. */
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static void
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@ -402,6 +402,8 @@ extern enum processor_type rs6000_cpu;
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{"longcall", &rs6000_longcall_switch, \
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N_("Avoid all range limits on call instructions"), 0}, \
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{"no-longcall", &rs6000_longcall_switch, "", 0}, \
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{"align-", &rs6000_alignment_string, \
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N_("Specify alignment of structure fields default/natural"), 0}, \
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SUBTARGET_OPTIONS \
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}
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@ -443,6 +445,25 @@ extern const char *rs6000_altivec_vrsave_string;
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extern int rs6000_altivec_vrsave;
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extern const char *rs6000_longcall_switch;
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extern int rs6000_default_long_calls;
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extern const char* rs6000_alignment_string;
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extern int rs6000_alignment_flags;
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/* Alignment options for fields in structures for sub-targets following
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AIX-like ABI.
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ALIGN_POWER word-aligns FP doubles (default AIX ABI).
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ALIGN_NATURAL doubleword-aligns FP doubles (align to object size).
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Override the macro definitions when compiling libobjc to avoid undefined
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reference to rs6000_alignment_flags due to library's use of GCC alignment
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macros which use the macros below. */
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#ifndef IN_TARGET_LIBS
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#define MASK_ALIGN_POWER 0x00000000
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#define MASK_ALIGN_NATURAL 0x00000001
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#define TARGET_ALIGN_NATURAL (rs6000_alignment_flags & MASK_ALIGN_NATURAL)
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#else
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#define TARGET_ALIGN_NATURAL 0
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#endif
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#define TARGET_LONG_DOUBLE_128 (rs6000_long_double_type_size == 128)
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#define TARGET_ALTIVEC_ABI rs6000_altivec_abi
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