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re PR target/49781 ([x32] Unnecessary lea in x32 mode)

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PR target/49781
	* config/i386/i386.md (reload_noff_load): New.
	(reload_noff_store): Ditto.
	* config/i386/i386.c (ix86_secondary_reload): Use
	CODE_FOR_reload_noff_load and CODE_FOR_reload_noff_store to handle
	double-word moves from/to non-offsetable addresses instead of
	generating XMM temporary.

From-SVN: r177583
This commit is contained in:
Uros Bizjak 2011-08-09 09:38:02 +02:00
parent 2292df601d
commit 3968b0504c
3 changed files with 62 additions and 17 deletions
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30
gcc/ChangeLog
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@ -1,3 +1,13 @@
2011-08-09 Uros Bizjak <ubizjak@gmail.com>
PR target/49781
* config/i386/i386.md (reload_noff_load): New.
(reload_noff_store): Ditto.
* config/i386/i386.c (ix86_secondary_reload): Use
CODE_FOR_reload_noff_load and CODE_FOR_reload_noff_store to handle
double-word moves from/to non-offsetable addresses instead of
generating XMM temporary.
2011-08-09 Anatoly Sokolov <aesok@post.ru>
* config/mmix/mmix.h (REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P): Remove.
@ -47,15 +57,13 @@
(tree-streamer.o): New.
(tree-streamer-in.o): New.
(tree-streamer-out.o): New.
(lto-cgraph.o): Add dependency on DATA_STREAMER_H and
TREE_STREAMER_H.
(lto-cgraph.o): Add dependency on DATA_STREAMER_H and TREE_STREAMER_H.
(lto-streamer-in.o): Add dependency on DATA_STREAMER_H,
GIMPLE_STREAMER_H and TREE_STREAMER_H.
(lto-streamer-out.o): Add dependency on DATA_STREAMER_H,
GIMPLE_STREAMER_H and TREE_STREAMER_H.
(lto-streamer.o): Add dependency on STREAMER_HOOKS_H.
(ipa-prop.o): Add dependency on DATA_STREAMER_H and
TREE_STREAMER_H.
(ipa-prop.o): Add dependency on DATA_STREAMER_H and TREE_STREAMER_H.
(ipa-inline-analysis.o): Likewise.
(ipa-pure-const.o): Likewise.
* data-streamer-in.c: New.
@ -80,8 +88,7 @@
(lto_output_sleb128_stream): Likewise.
(bp_pack_var_len_unsigned): Likewise.
(bp_pack_var_len_int): Likewise.
* lto-streamer-in.c: Include data-streamer.h and
gimple-streamer.h.
* lto-streamer-in.c: Include data-streamer.h and gimple-streamer.h.
(struct string_slot): Remove. Update all users.
(lto_tag_check_set): Make extern.
(lto_tag_check_range): Move to lto-streamer.h.
@ -95,8 +102,7 @@
(lto_input_string): Move to data-streamer-in.c
(input_record_start): Move to data-streamer.h
(canon_file_name): Use new definition of struct string_slot
from data-streamer.h.
Set S_SLOT.LEN.
from data-streamer.h. Set S_SLOT.LEN.
(lto_input_location): Make extern.
(lto_input_chain): Move to tree-streamer-in.c.
(lto_init_eh): Make extern.
@ -211,8 +217,7 @@
(streamer_hooks_init): Move to streamer-hooks.c.
* lto-streamer.h: Include diagnostic.h
(struct output_block, struct lto_input_block,
struct data_in, struct bitpack_d): Remove forward
declarations.
struct data_in, struct bitpack_d): Remove forward declarations.
(struct bitpack_d): Move to data-streamer.h.
(struct lto_streamer_cache_d): Move to tree-streamer.h.
(struct streamer_hooks): Move to streamer-hooks.h.
@ -253,10 +258,9 @@
* gthr.h [_PTHREADS95]: Remove.
* configure.ac (enable_threads): Remove posix95.
* configure: Regenerate.
* doc/install.texi (Configuration, --enable-threads): Remove
posix95.
* doc/install.texi (Configuration, --enable-threads): Remove posix95.
2011-08-07 Uros Bizjak <ubizjak@gmail.com>
2011-08-08 Uros Bizjak <ubizjak@gmail.com>
PR target/49781
* config/i386/i386.c (ix86_decompose_address): Allow zero-extended

15
gcc/config/i386/i386.c
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@ -28247,17 +28247,24 @@ ix86_preferred_output_reload_class (rtx x, reg_class_t regclass)
static reg_class_t
ix86_secondary_reload (bool in_p, rtx x, reg_class_t rclass,
enum machine_mode mode,
secondary_reload_info *sri ATTRIBUTE_UNUSED)
enum machine_mode mode, secondary_reload_info *sri)
{
/* Double-word spills from general registers to non-offsettable memory
references (zero-extended addresses) go through XMM register. */
references (zero-extended addresses) require special handling. */
if (TARGET_64BIT
&& MEM_P (x)
&& GET_MODE_SIZE (mode) > UNITS_PER_WORD
&& rclass == GENERAL_REGS
&& !offsettable_memref_p (x))
return SSE_REGS;
{
sri->icode = (in_p
? CODE_FOR_reload_noff_load
: CODE_FOR_reload_noff_store);
/* Add the cost of move to a temporary. */
sri->extra_cost = 1;
return NO_REGS;
}
/* QImode spills from non-QI registers require
intermediate register on 32bit targets. */

34
gcc/config/i386/i386.md
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@ -2073,6 +2073,40 @@
(const_string "orig")))
(set_attr "mode" "SI,DI,DI,DI,SI,DI,DI,DI,DI,DI,TI,DI,TI,DI,DI,DI,DI,DI")])
;; Reload patterns to support multi-word load/store
;; with non-offsetable address.
(define_expand "reload_noff_store"
[(parallel [(match_operand 0 "memory_operand" "=m")
(match_operand 1 "register_operand" "r")
(match_operand:DI 2 "register_operand" "=&r")])]
"TARGET_64BIT"
{
rtx mem = operands[0];
rtx addr = XEXP (mem, 0);
emit_move_insn (operands[2], addr);
mem = replace_equiv_address_nv (mem, operands[2]);
emit_insn (gen_rtx_SET (VOIDmode, mem, operands[1]));
DONE;
})
(define_expand "reload_noff_load"
[(parallel [(match_operand 0 "register_operand" "=r")
(match_operand 1 "memory_operand" "m")
(match_operand:DI 2 "register_operand" "=r")])]
"TARGET_64BIT"
{
rtx mem = operands[1];
rtx addr = XEXP (mem, 0);
emit_move_insn (operands[2], addr);
mem = replace_equiv_address_nv (mem, operands[2]);
emit_insn (gen_rtx_SET (VOIDmode, operands[0], mem));
DONE;
})
;; Convert impossible stores of immediate to existing instructions.
;; First try to get scratch register and go through it. In case this
;; fails, move by 32bit parts.