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lvzhengyang
riscv-gcc-1
Commits
67232b23
Commit
67232b23
authored
31 years ago
by
Richard Kenner
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(simplify_comparison): Fix typo in last change.
From-SVN: r6407
parent
5cb7368c
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gcc/combine.c
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gcc/combine.c
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67232b23
...
...
@@ -8451,21 +8451,20 @@ simplify_comparison (code, pop0, pop1)
shift. We can if the shift is a rotate or if the bits shifted out of
this shift are known to be zero for both inputs and if the type of
comparison is compatible with the shift. */
else
if
(
GET_CODE
(
op0
)
==
GET_CODE
(
op1
)
&&
GET_MODE_BITSIZE
(
GET_MODE
(
op0
))
<=
HOST_BITS_PER_WIDE_INT
&&
((
GET_CODE
(
op0
)
==
ROTATE
&&
(
code
==
NE
||
code
==
EQ
))
||
((
GET_CODE
(
op0
)
==
LSHIFTRT
||
GET_CODE
(
op0
)
==
ASHIFT
||
GET_CODE
(
op0
)
==
LSHIFT
)
&&
(
code
!=
GT
&&
code
!=
LT
&&
code
!=
GE
&&
code
!=
LE
))
||
(
GET_CODE
(
op0
)
==
ASHIFTRT
&&
(
code
!=
GTU
&&
code
!=
LTU
&&
code
!=
GEU
&&
code
!=
GEU
)))
&&
GET_CODE
(
XEXP
(
op0
,
1
))
==
CONST_INT
&&
INTVAL
(
XEXP
(
op0
,
1
))
>=
0
&&
INTVAL
(
XEXP
(
op0
,
1
))
<
HOST_BITS_PER_WIDE_INT
&&
XEXP
(
op0
,
1
)
==
XEXP
(
op1
,
1
))
if
(
GET_CODE
(
op0
)
==
GET_CODE
(
op1
)
&&
GET_MODE_BITSIZE
(
GET_MODE
(
op0
))
<=
HOST_BITS_PER_WIDE_INT
&&
((
GET_CODE
(
op0
)
==
ROTATE
&&
(
code
==
NE
||
code
==
EQ
))
||
((
GET_CODE
(
op0
)
==
LSHIFTRT
||
GET_CODE
(
op0
)
==
ASHIFT
||
GET_CODE
(
op0
)
==
LSHIFT
)
&&
(
code
!=
GT
&&
code
!=
LT
&&
code
!=
GE
&&
code
!=
LE
))
||
(
GET_CODE
(
op0
)
==
ASHIFTRT
&&
(
code
!=
GTU
&&
code
!=
LTU
&&
code
!=
GEU
&&
code
!=
GEU
)))
&&
GET_CODE
(
XEXP
(
op0
,
1
))
==
CONST_INT
&&
INTVAL
(
XEXP
(
op0
,
1
))
>=
0
&&
INTVAL
(
XEXP
(
op0
,
1
))
<
HOST_BITS_PER_WIDE_INT
&&
XEXP
(
op0
,
1
)
==
XEXP
(
op1
,
1
))
{
enum
machine_mode
mode
=
GET_MODE
(
op0
);
unsigned
HOST_WIDE_INT
mask
=
GET_MODE_MASK
(
mode
);
...
...
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