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Jan Hubicka <hubicka@freesoft.cz>

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* i386.md (mov?i patterns): Fix handling of TARGET_USE_MOV0
        (mov $-1 to or peepholer): Enable for pentium when optimizing for
        speed.

From-SVN: r29771
This commit is contained in:
Jan Hubicka 1999-10-02 19:59:37 +02:00 committed by Richard Henderson
parent 54e43c67ac
commit ffab8d8591
2 changed files with 13 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Sat Oct 2 10:57:56 1999 Jan Hubicka <hubicka@freesoft.cz>
* i386.md (mov?i patterns): Fix handling of TARGET_USE_MOV0
(mov $-1 to or peepholer): Enable for pentium when optimizing for
speed.
Sat Oct 2 10:55:25 1999 Jan Hubicka <hubicka@freesoft.cz>
* builtins.c (expand_builtin_strlen): Fix best mode searching loop.

12
gcc/config/i386/i386.md
View File

@ -1162,7 +1162,7 @@
[(set (attr "type")
(cond [(and (match_operand:SI 1 "const0_operand" "")
(and (match_operand:SI 0 "register_operand" "")
(ne (symbol_ref "TARGET_USE_MOV0") (const_int 0))))
(eq (symbol_ref "TARGET_USE_MOV0") (const_int 0))))
(const_string "alu1")
(and (ne (symbol_ref "flag_pic") (const_int 0))
(match_operand:SI 1 "symbolic_operand" ""))
@ -1254,7 +1254,7 @@
[(set (attr "type")
(cond [(and (match_operand:HI 1 "const0_operand" "")
(and (match_operand:HI 0 "register_operand" "")
(ne (symbol_ref "TARGET_USE_MOV0") (const_int 0))))
(eq (symbol_ref "TARGET_USE_MOV0") (const_int 0))))
(const_string "alu1")
(and (ne (symbol_ref "TARGET_MOVX")
(const_int 0))
@ -1431,7 +1431,7 @@
[(set (attr "type")
(cond [(and (match_operand:QI 1 "const0_operand" "")
(and (match_operand:QI 0 "register_operand" "")
(ne (symbol_ref "TARGET_USE_MOV0") (const_int 0))))
(eq (symbol_ref "TARGET_USE_MOV0") (const_int 0))))
(const_string "alu1")
(eq_attr "alternative" "3")
(const_string "imovx")
@ -8146,7 +8146,8 @@
(define_peephole2
[(set (match_operand:SI 0 "register_operand" "")
(const_int -1))]
"optimize_size && reg_dead_p (insn, gen_rtx_REG (CCmode, FLAGS_REG))"
"(optimize_size || TARGET_PENTIUM)
&& reg_dead_p (insn, gen_rtx_REG (CCmode, FLAGS_REG))"
[(parallel [(set (match_dup 0)
(ior:SI (match_dup 0) (const_int -1)))
(clobber (reg:CC 17))])]
@ -8155,7 +8156,8 @@
(define_peephole2
[(set (match_operand:HI 0 "register_operand" "")
(const_int -1))]
"optimize_size && reg_dead_p (insn, gen_rtx_REG (CCmode, FLAGS_REG))"
"(optimize_size || TARGET_PENTIUM)
&& reg_dead_p (insn, gen_rtx_REG (CCmode, FLAGS_REG))"
[(parallel [(set (match_dup 0)
(ior:HI (match_dup 0) (const_int -1)))
(clobber (reg:CC 17))])]