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regrename.c (struct du_chain): Use a bitfield for reg_class.

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2003-04-09  Dan Nicolaescu  <dann@ics.uci.edu>
	    Zack Weinberg  <zack@codesourcery.com>

	* regrename.c (struct du_chain): Use a bitfield for reg_class.
	* cse.c (struct qty_table_elem, struct table_elt, struct set):
	Use bitfields for fields holding enum rtx_code or
	enum machine_mode values.  Add comments explaining size choices.

From-SVN: r65419
This commit is contained in:
Dan Nicolaescu 2003-04-10 05:24:26 +00:00 committed by Zack Weinberg
parent 2363a51aee
commit 496324d0a7
3 changed files with 54 additions and 40 deletions
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76
gcc/ChangeLog
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@ -1,3 +1,11 @@
2003-04-09 Dan Nicolaescu <dann@ics.uci.edu>
Zack Weinberg <zack@codesourcery.com>
* regrename.c (struct du_chain): Use a bitfield for reg_class.
* cse.c (struct qty_table_elem, struct table_elt, struct set):
Use bitfields for fields holding enum rtx_code or
enum machine_mode values. Add comments explaining size choices.
2003-04-09 Alexandre Oliva <aoliva@redhat.com> 2003-04-09 Alexandre Oliva <aoliva@redhat.com>
* config/fp-bit.c (unpack_d): Handle pair of doubles with * config/fp-bit.c (unpack_d): Handle pair of doubles with
@ -107,9 +115,9 @@
2003-04-08 Aldy Hernandez <aldyh@redhat.com> 2003-04-08 Aldy Hernandez <aldyh@redhat.com>
* config/rs6000/rs6000.c (rs6000_init_builtins): Set opaque types * config/rs6000/rs6000.c (rs6000_init_builtins): Set opaque types
regardless of architecture. regardless of architecture.
(spe_init_builtins): Change V2SI and V2SF types to opaque types. (spe_init_builtins): Change V2SI and V2SF types to opaque types.
2003-04-08 J"orn Rennecke <joern.rennecke@superh.com> 2003-04-08 J"orn Rennecke <joern.rennecke@superh.com>
@ -137,11 +145,11 @@ Tue Apr 8 11:12:07 CEST 2003 Jan Hubicka <jh@suse.cz>
* doc/sourcebuild.texi: Likewise. * doc/sourcebuild.texi: Likewise.
2003-04-07 Christian Ehrhardt <ehrhardt@mathematik.uni-ulm.de> 2003-04-07 Christian Ehrhardt <ehrhardt@mathematik.uni-ulm.de>
Richard Henderson <rth@redhat.com> Richard Henderson <rth@redhat.com>
PR c/9516 PR c/9516
* expr.c (safe_from_p): Rearrange to avoid deep recursion in * expr.c (safe_from_p): Rearrange to avoid deep recursion in
favour of looping and tail recursion for TREE_LIST and binops. favour of looping and tail recursion for TREE_LIST and binops.
2003-04-08 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz> 2003-04-08 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
@ -156,9 +164,9 @@ Tue Apr 8 11:12:07 CEST 2003 Jan Hubicka <jh@suse.cz>
2003-04-07 Richard Henderson <rth@redhat.com> 2003-04-07 Richard Henderson <rth@redhat.com>
PR opt/8634 PR opt/8634
* function.c (purge_addressof_1): Don't try arithmetics for * function.c (purge_addressof_1): Don't try arithmetics for
unchanging memories. unchanging memories.
2003-04-07 Janis Johnson <janis187@us.ibm.com> 2003-04-07 Janis Johnson <janis187@us.ibm.com>
@ -177,13 +185,13 @@ Mon Apr 7 22:19:59 CEST 2003 Jan Hubicka <jh@suse.cz>
2003-04-07 Aldy Hernandez <aldyh@redhat.com> 2003-04-07 Aldy Hernandez <aldyh@redhat.com>
* config/rs6000/rs6000.c (rs6000_common_init_builtins): Rename all * config/rs6000/rs6000.c (rs6000_common_init_builtins): Rename all
V2SI_type_node to opaque_V2SI_type_node. Rename all V2SI_type_node to opaque_V2SI_type_node. Rename all
V2SF_type_node to opaque_V2SF_type_node. V2SF_type_node to opaque_V2SF_type_node.
(rs6000_init_builtins): Define opaque_V2SI_type_node and (rs6000_init_builtins): Define opaque_V2SI_type_node and
opaque_V2SF_type_node. opaque_V2SF_type_node.
(is_ev64_opaque_type): The types opaque_V2SI_type_node and (is_ev64_opaque_type): The types opaque_V2SI_type_node and
opaque_V2SF_type_node are opaque types. opaque_V2SF_type_node are opaque types.
2003-04-07 J"orn Rennecke <joern.rennecke@superh.com> 2003-04-07 J"orn Rennecke <joern.rennecke@superh.com>
@ -238,27 +246,27 @@ Mon Apr 7 22:19:59 CEST 2003 Jan Hubicka <jh@suse.cz>
2003-04-07 Aldy Hernandez <aldyh@redhat.com> 2003-04-07 Aldy Hernandez <aldyh@redhat.com>
* doc/invoke.texi (RS/6000 and PowerPC Options): Document * doc/invoke.texi (RS/6000 and PowerPC Options): Document
-mfloat-gprs. -mfloat-gprs.
* config/rs6000/rs6000.c: Delete rs6000_fprs. * config/rs6000/rs6000.c: Delete rs6000_fprs.
Declare rs6000_float_gprs. Declare rs6000_float_gprs.
Declare rs6000_float_gprs_string. Declare rs6000_float_gprs_string.
(rs6000_parse_float_gprs_option): New. (rs6000_parse_float_gprs_option): New.
(rs6000_override_options): Genericize rs6000_parse_* calls to use (rs6000_override_options): Genericize rs6000_parse_* calls to use
rs6000_parse_yes_no_option. rs6000_parse_yes_no_option.
Change check for cpu=8540, to use TARGET_E500. Change check for cpu=8540, to use TARGET_E500.
(rs6000_parse_isel_option): Delete. (rs6000_parse_isel_option): Delete.
(rs6000_parse_spe_option): Delete. (rs6000_parse_spe_option): Delete.
(rs6000_parse_vrsave_option): Delete. (rs6000_parse_vrsave_option): Delete.
* config/rs6000/rs6000.h: Rename rs6000_fprs to rs6000_float_gprs. * config/rs6000/rs6000.h: Rename rs6000_fprs to rs6000_float_gprs.
Define rs6000_float_gprs_string. Define rs6000_float_gprs_string.
(TARGET_OPTIONS): Add rs6000_float_gprs option. (TARGET_OPTIONS): Add rs6000_float_gprs option.
* config/rs6000/eabi.h (TARGET_FPRS): Change to use rs6000_float_gprs. * config/rs6000/eabi.h (TARGET_FPRS): Change to use rs6000_float_gprs.
* config/rs6000/eabispe.h: Set rs6000_float_gprs. * config/rs6000/eabispe.h: Set rs6000_float_gprs.
Mon Apr 7 14:36:24 CEST 2003 Jan Hubicka <jh@suse.cz> Mon Apr 7 14:36:24 CEST 2003 Jan Hubicka <jh@suse.cz>

16
gcc/cse.c
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@ -251,8 +251,10 @@ struct qty_table_elem
rtx comparison_const; rtx comparison_const;
int comparison_qty; int comparison_qty;
unsigned int first_reg, last_reg; unsigned int first_reg, last_reg;
enum machine_mode mode; /* The sizes of these fields should match the sizes of the
enum rtx_code comparison_code; code and mode fields of struct rtx_def (see rtl.h). */
ENUM_BITFIELD(rtx_code) comparison_code : 16;
ENUM_BITFIELD(machine_mode) mode : 8;
}; };
/* The table of all qtys, indexed by qty number. */ /* The table of all qtys, indexed by qty number. */
@ -462,7 +464,9 @@ struct table_elt
struct table_elt *related_value; struct table_elt *related_value;
int cost; int cost;
int regcost; int regcost;
enum machine_mode mode; /* The size of this field should match the size
of the mode field of struct rtx_def (see rtl.h). */
ENUM_BITFIELD(machine_mode) mode : 8;
char in_memory; char in_memory;
char is_const; char is_const;
char flag; char flag;
@ -4712,8 +4716,10 @@ struct set
/* Nonzero if the SET_SRC contains something /* Nonzero if the SET_SRC contains something
whose value cannot be predicted and understood. */ whose value cannot be predicted and understood. */
char src_volatile; char src_volatile;
/* Original machine mode, in case it becomes a CONST_INT. */ /* Original machine mode, in case it becomes a CONST_INT.
enum machine_mode mode; The size of this field should match the size of the mode
field of struct rtx_def (see rtl.h). */
ENUM_BITFIELD(machine_mode) mode : 8;
/* A constant equivalent for SET_SRC, if any. */ /* A constant equivalent for SET_SRC, if any. */
rtx src_const; rtx src_const;
/* Original SET_SRC value used for libcall notes. */ /* Original SET_SRC value used for libcall notes. */

2
gcc/regrename.c
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@ -51,7 +51,7 @@ struct du_chain
rtx insn; rtx insn;
rtx *loc; rtx *loc;
enum reg_class class; ENUM_BITFIELD(reg_class) class : 16;
unsigned int need_caller_save_reg:1; unsigned int need_caller_save_reg:1;
unsigned int earlyclobber:1; unsigned int earlyclobber:1;
}; };