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mn10300.md: Revert 2003-09-17's patch.

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* config/mn10300/mn10300.md: Revert 2003-09-17's patch.
(andsi3): Set attr cc to set_zn when using shifts or adds.

From-SVN: r71663
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Alexandre Oliva 2003-09-22 20:13:40 +00:00 committed by Alexandre Oliva
parent 89ec0c4ba6
commit 4d76fdaabc
2 changed files with 52 additions and 12 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2003-09-22 Alexandre Oliva <aoliva@redhat.com>
* config/mn10300/mn10300.md: Revert 2003-09-17's patch.
(andsi3): Set attr cc to set_zn when using shifts or adds.
2003-09-22 Bernardo Innocenti <bernie@develer.com>
* doc/contrib.texi: Add Peter Barada, Paul Dale and myself.

59
gcc/config/mn10300/mn10300.md
View File

@ -1224,7 +1224,22 @@
return \"and %1,%0\";
return \"and %2,%0\";
}"
[(set_attr "cc" "none_0hit,set_zn,set_zn")])
[(set (attr "cc")
(cond
[
(eq (symbol_ref "which_alternative") (const_int 0)
) (const_string "none_0hit")
(ne (symbol_ref "GET_CODE (operands[2]) == CONST_INT
&& (INTVAL (operands[2]) == 0x7fffffff
|| INTVAL (operands[2]) == 0x3fffffff
|| INTVAL (operands[2]) == 0x1fffffff
|| INTVAL (operands[2]) == 0x0fffffff
|| INTVAL (operands[2]) == 0x0ffffffe
|| INTVAL (operands[2]) == 0xfffffffc
|| INTVAL (operands[2]) == 0xfffffff8
|| INTVAL (operands[2]) == 0xfffffff0)")
(const_int 0)) (const_string "set_zn")
] (const_string "set_znv")))])
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=dx,dx")
@ -1255,7 +1270,27 @@
return \"lsr 4,%0\;asl2 %0\;asl2 %0\";
return \"and %2,%0\";
}"
[(set_attr "cc" "none_0hit,set_zn")])
[(set (attr "cc")
(cond
[
(eq (symbol_ref "which_alternative") (const_int 0)
) (const_string "none_0hit")
;; Shifts don't set the V flag, but bitwise operations clear
;; it (which correctly reflects the absence of overflow in a
;; compare-with-zero that might follow). As for the
;; 0xfffffffe case, the add may overflow, so we can't use the
;; V flag.
(ne (symbol_ref "GET_CODE (operands[2]) == CONST_INT
&& (INTVAL (operands[2]) == 0x7fffffff
|| INTVAL (operands[2]) == 0x3fffffff
|| INTVAL (operands[2]) == 0x1fffffff
|| INTVAL (operands[2]) == 0x0fffffff
|| INTVAL (operands[2]) == 0x0ffffffe
|| INTVAL (operands[2]) == 0xfffffffc
|| INTVAL (operands[2]) == 0xfffffff8
|| INTVAL (operands[2]) == 0xfffffff0)")
(const_int 0)) (const_string "set_zn")
] (const_string "set_znv")))])
;; ----------------------------------------------------------------------
;; OR INSTRUCTIONS
@ -1291,7 +1326,7 @@
return \"or %1,%0\";
return \"or %2,%0\";
}"
[(set_attr "cc" "set_zn")])
[(set_attr "cc" "set_znv")])
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=dx")
@ -1299,7 +1334,7 @@
(match_operand:SI 2 "nonmemory_operand" "dxi")))]
""
"or %2,%0"
[(set_attr "cc" "set_zn")])
[(set_attr "cc" "set_znv")])
;; ----------------------------------------------------------------------
;; XOR INSTRUCTIONS
@ -1335,7 +1370,7 @@
return \"xor %1,%0\";
return \"xor %2,%0\";
}"
[(set_attr "cc" "set_zn")])
[(set_attr "cc" "set_znv")])
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=dx")
@ -1343,7 +1378,7 @@
(match_operand:SI 2 "nonmemory_operand" "dxi")))]
""
"xor %2,%0"
[(set_attr "cc" "set_zn")])
[(set_attr "cc" "set_znv")])
;; ----------------------------------------------------------------------
;; NOT INSTRUCTIONS
@ -1360,14 +1395,14 @@
(not:SI (match_operand:SI 1 "register_operand" "0,0")))]
"TARGET_AM33"
"not %0"
[(set_attr "cc" "set_zn")])
[(set_attr "cc" "set_znv")])
(define_insn ""
[(set (match_operand:SI 0 "register_operand" "=dx")
(not:SI (match_operand:SI 1 "register_operand" "0")))]
""
"not %0"
[(set_attr "cc" "set_zn")])
[(set_attr "cc" "set_znv")])
;; -----------------------------------------------------------------
;; BIT FIELDS
@ -1404,7 +1439,7 @@
"@
bclr %N1,%A0
and %1,%0"
[(set_attr "cc" "clobber,set_zn")])
[(set_attr "cc" "clobber,set_znv")])
(define_insn ""
[(set (match_operand:QI 0 "memory_operand" "=R,T")
@ -1426,7 +1461,7 @@
"@
bset %U1,%A0
or %1,%0"
[(set_attr "cc" "clobber,set_zn")])
[(set_attr "cc" "clobber,set_znv")])
(define_expand "iorqi3"
[(set (match_operand:QI 0 "nonimmediate_operand" "")
@ -1449,7 +1484,7 @@
bset %U2,%A0
bset %2,%0
or %2,%0"
[(set_attr "cc" "clobber,clobber,set_zn")])
[(set_attr "cc" "clobber,clobber,set_znv")])
(define_insn ""
[(set (match_operand:QI 0 "nonimmediate_operand" "=R,T,d")
@ -1464,7 +1499,7 @@
bset %U2,%A0
bset %2,%0
or %2,%0"
[(set_attr "cc" "clobber,clobber,set_zn")])
[(set_attr "cc" "clobber,clobber,set_znv")])
(define_insn ""
[(set (cc0)