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AirInst.cpp
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/*
* Copyright (C) 2015-2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#
include
"
config.h
"
#
include
"
AirInst.h
"
#
if
ENABLE(B3_JIT)
#
include
"
AirInstInlines.h
"
#
include
<
wtf/ListDump.h
>
namespace
JSC
{
namespace
B3
{
namespace
Air
{
bool
Inst::hasEarlyDef
()
{
if
(kind.
opcode
== Patch && !
extraEarlyClobberedRegs
().
isEmpty
())
return
true
;
bool
result =
false
;
forEachArg
(
[&] (Arg&, Arg::Role role, Bank, Width) {
result |=
Arg::isEarlyDef
(role);
});
return
result;
}
bool
Inst::hasLateUseOrDef
()
{
if
(kind.
opcode
== Patch && !
extraClobberedRegs
().
isEmpty
())
return
true
;
bool
result =
false
;
forEachArg
(
[&] (Arg&, Arg::Role role, Bank, Width) {
result |=
Arg::isLateUse
(role) ||
Arg::isLateDef
(role);
});
return
result;
}
Inst::PaddingSummary
Inst::paddingSummary
()
{
PaddingSummary summary;
if
(kind.
opcode
== Patch) {
summary.
hasEarlyDef
= !
extraEarlyClobberedRegs
().
isEmpty
();
summary.
hasLateUseOrDef
= !
extraClobberedRegs
().
isEmpty
();
if
(summary.
hasEarlyDef
&& summary.
hasLateUseOrDef
)
return
summary;
}
forEachArg
(
[&] (Arg&, Arg::Role role, Bank, Width) {
summary.
hasEarlyDef
|=
Arg::isEarlyDef
(role);
summary.
hasLateUseOrDef
|=
Arg::isLateUse
(role) ||
Arg::isLateDef
(role);
});
return
summary;
}
bool
Inst::hasArgEffects
()
{
bool
result =
false
;
forEachArg
(
[&] (Arg&, Arg::Role role, Bank, Width) {
if
(
Arg::isAnyDef
(role))
result =
true
;
});
return
result;
}
unsigned
Inst::jsHash
()
const
{
//
FIXME: This should do something for flags.
//
https://bugs.webkit.org/show_bug.cgi?id=162751
unsigned
result =
static_cast
<
unsigned
>(kind.
opcode
);
for
(
const
Arg& arg :
args
())
result += arg.
jsHash
();
return
result;
}
void
Inst::dump
(PrintStream& out)
const
{
out.
print
(kind,
"
"
,
listDump
(
args
()));
}
} } }
//
namespace JSC::B3::Air
#
endif
//
ENABLE(B3_JIT)
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