File: opcodes

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# New ops always go at the end
# The restriction on having custom as the last op has been removed

# A recapitulation of the format of this file:
# The file consists of five columns: the name of the op, an English
# description, the name of the "check" routine used to optimize this
# operation, some flags, and a description of the operands.

# The flags consist of options followed by a mandatory op class signifier

# The classes are:
# baseop      - 0            unop     - 1            binop      - 2
# logop       - |            listop   - @            pmop       - /
# padop/svop  - $            padop    - # (unused)   loop       - {
# baseop/unop - %            loopexop - }            filestatop - -
# pvop/svop   - "            cop      - ;            methop     - .
# unop_aux    - +

# Other options are:
#   needs stack mark                    - m  (OA_MARK)
#   needs constant folding              - f  (OA_FOLDCONST)
#   produces a scalar                   - s  (OA_RETSCALAR)
#   produces an integer                 - i  (unused)
#   needs a target                      - t  (OA_TARGET)
#   target can be in a pad              - T  (OA_TARGET|OA_TARGLEX)
#   has a corresponding integer version - I  (OA_OTHERINT)
#   make temp copy in list assignment   - d  (OA_DANGEROUS)
#   uses $_ if no argument given        - u  (OA_DEFGV)

# Values for the operands are:
# scalar      - S            list     - L            array     - A
# hash        - H            sub (CV) - C            file      - F
# socket      - Fs           filetest - F-           filetest_access - F-+
# num-compare - S<           dirhandle - DF          infix bitwise   - S|

# reference - R
# "?" denotes an optional operand.

# Nothing.

null		null operation		ck_null		0	
stub		stub			ck_null		0
scalar		scalar			ck_fun		s%	S

# Pushy stuff.

pushmark	pushmark		ck_null		s0	
wantarray	wantarray		ck_null		is0	

const		constant item		ck_svconst	s$	

gvsv		scalar variable		ck_null		ds$	
gv		glob value		ck_null		ds$	
gelem		glob elem		ck_null		ds2	S S
padsv		private variable	ck_null		ds0
padav		private array		ck_null		d0
padhv		private hash		ck_null		d0
padany		private value		ck_null		d0

pushre		push regexp		ck_null		d/

# References and stuff.

rv2gv		ref-to-glob cast	ck_rvconst	ds1	
rv2sv		scalar dereference	ck_rvconst	ds1	
av2arylen	array length		ck_null		is1	
rv2cv		subroutine dereference	ck_rvconst	d1
anoncode	anonymous subroutine	ck_anoncode	s$	
prototype	subroutine prototype	ck_prototype	su%	S?
refgen		reference constructor	ck_spair	m1	L
srefgen		single ref constructor	ck_null		fs1	S
ref		reference-type operator	ck_fun		stu%	S?
bless		bless			ck_fun		s@	S S?

# Pushy I/O.

backtick	quoted execution (``, qx)	ck_backtick	tu%	S?
# glob defaults its first arg to $_
glob		glob			ck_glob		t@	S?
readline	<HANDLE>		ck_readline	t%	F?
rcatline	append I/O operator	ck_null		t$

# Bindable operators.

regcmaybe	regexp internal guard	ck_fun		s1	S
regcreset	regexp internal reset	ck_fun		s1	S
regcomp		regexp compilation	ck_null		s|	S
match		pattern match (m//)	ck_match	/
qr		pattern quote (qr//)	ck_match	s/
subst		substitution (s///)	ck_match	is/	S
substcont	substitution iterator	ck_null		is|	
trans		transliteration (tr///)	ck_match	is"	S
# y///r
transr		transliteration (tr///)	ck_match	is"	S

# Lvalue operators.
# sassign is special-cased for op class

sassign		scalar assignment	ck_sassign	s0
aassign		list assignment		ck_null		t2	L L

chop		chop			ck_spair	mts%	L
schop		scalar chop		ck_null		stu%	S?
chomp		chomp			ck_spair	mTs%	L
schomp		scalar chomp		ck_null		sTu%	S?
defined		defined operator	ck_defined	isu%	S?
undef		undef operator		ck_fun		s%	R?
study		study			ck_fun		su%	S?
pos		match position		ck_fun		stu%	R?

preinc		preincrement (++)		ck_lfun		dIs1	S
i_preinc	integer preincrement (++)	ck_lfun		dis1	S
predec		predecrement (--)		ck_lfun		dIs1	S
i_predec	integer predecrement (--)	ck_lfun		dis1	S
postinc		postincrement (++)		ck_lfun		Ist1	S
i_postinc	integer postincrement (++)	ck_lfun		ist1	S
postdec		postdecrement (--)		ck_lfun		Ist1	S
i_postdec	integer postdecrement (--)	ck_lfun		ist1	S

# Ordinary operators.

pow		exponentiation (**)	ck_null		fsT2	S S

multiply	multiplication (*)	ck_null		IfsT2	S S
i_multiply	integer multiplication (*)	ck_null		ifsT2	S S
divide		division (/)		ck_null		IfsT2	S S
i_divide	integer division (/)	ck_null		ifsT2	S S
modulo		modulus (%)		ck_null		IifsT2	S S
i_modulo	integer modulus (%)	ck_null		ifsT2	S S
repeat		repeat (x)		ck_repeat	fmt2	L S

add		addition (+)		ck_null		IfsT2	S S
i_add		integer addition (+)	ck_null		ifsT2	S S
subtract	subtraction (-)		ck_null		IfsT2	S S
i_subtract	integer subtraction (-)	ck_null		ifsT2	S S
concat		concatenation (.) or string	ck_concat	fsT2	S S
stringify	string			ck_stringify	fsT@	S

left_shift	left bitshift (<<)	ck_bitop	fsT2	S S
right_shift	right bitshift (>>)	ck_bitop	fsT2	S S

lt		numeric lt (<)		ck_cmp		Iifs2	S S<
i_lt		integer lt (<)		ck_cmp		ifs2	S S<
gt		numeric gt (>)		ck_cmp		Iifs2	S S<
i_gt		integer gt (>)		ck_cmp		ifs2	S S<
le		numeric le (<=)		ck_cmp		Iifs2	S S<
i_le		integer le (<=)		ck_cmp		ifs2	S S<
ge		numeric ge (>=)		ck_cmp		Iifs2	S S<
i_ge		integer ge (>=)		ck_cmp		ifs2	S S<
eq		numeric eq (==)		ck_null		Iifs2	S S<
i_eq		integer eq (==)		ck_null		ifs2	S S<
ne		numeric ne (!=)		ck_null		Iifs2	S S<
i_ne		integer ne (!=)		ck_null		ifs2	S S<
ncmp		numeric comparison (<=>)	ck_null		Iifst2	S S<
i_ncmp		integer comparison (<=>)	ck_null		ifst2	S S<

slt		string lt		ck_null		ifs2	S S
sgt		string gt		ck_null		ifs2	S S
sle		string le		ck_null		ifs2	S S
sge		string ge		ck_null		ifs2	S S
seq		string eq		ck_null		ifs2	S S
sne		string ne		ck_null		ifs2	S S
scmp		string comparison (cmp)	ck_null		ifst2	S S

bit_and		bitwise and (&)		ck_bitop	fst2	S S|
bit_xor		bitwise xor (^)		ck_bitop	fst2	S S|
bit_or		bitwise or (|)		ck_bitop	fst2	S S|
nbit_and	numeric bitiwse and (&)	ck_bitop	fsT2	S S|
nbit_xor	numeric bitwise xor (^)	ck_bitop	fsT2	S S|
nbit_or		numeric bitwise or (|)	ck_bitop	fsT2	S S|
sbit_and	string bitiwse and (&)	ck_bitop	fst2	S S|
sbit_xor	string bitwise xor (^)	ck_bitop	fst2	S S|
sbit_or		string bitwise or (|)	ck_bitop	fst2	S S|

negate		negation (-)		ck_null		Ifst1	S
i_negate	integer negation (-)	ck_null		ifst1	S
not		not			ck_null		ifs1	S
complement	1's complement (~)	ck_bitop	fst1	S
ncomplement	numeric 1's complement (~)	ck_bitop	fsT1	S
# scomplement uses ck_bitop only for the experimental warning.  Once the
# warning is gone, this can change to ck_null.
scomplement	string 1's complement (~)	ck_bitop	fsT1	S

smartmatch	smart match		ck_smartmatch	s2

# High falutin' math.

atan2		atan2			ck_fun		fsT@	S S
sin		sin			ck_fun		fsTu%	S?
cos		cos			ck_fun		fsTu%	S?
rand		rand			ck_fun		sT%	S?
srand		srand			ck_fun		sT%	S?
exp		exp			ck_fun		fsTu%	S?
log		log			ck_fun		fsTu%	S?
sqrt		sqrt			ck_fun		fsTu%	S?

# Lowbrow math.

int		int			ck_fun		fsTu%	S?
hex		hex			ck_fun		fsTu%	S?
oct		oct			ck_fun		fsTu%	S?
abs		abs			ck_fun		fsTu%	S?

# String stuff.

length		length			ck_length	ifsTu%	S?
substr		substr			ck_substr	st@	S S S? S?
vec		vec			ck_fun		ist@	S S S

index		index			ck_index	isT@	S S S?
rindex		rindex			ck_index	isT@	S S S?

sprintf		sprintf			ck_lfun		fmst@	S L
formline	formline		ck_fun		ms@	S L
ord		ord			ck_fun		ifsTu%	S?
chr		chr			ck_fun		fsTu%	S?
crypt		crypt			ck_fun		fsT@	S S
ucfirst		ucfirst			ck_fun		fstu%	S?
lcfirst		lcfirst			ck_fun		fstu%	S?
uc		uc			ck_fun		fstu%	S?
lc		lc			ck_fun		fstu%	S?
quotemeta	quotemeta		ck_fun		fstu%	S?

# Arrays.

rv2av		array dereference	ck_rvconst	dt1	
aelemfast	constant array element	ck_null		ds$	A S
aelemfast_lex	constant lexical array element	ck_null		d0	A S
aelem		array element		ck_null		s2	A S
aslice		array slice		ck_null		m@	A L
kvaslice	index/value array slice	ck_null		m@	A L

aeach		each on array		ck_each		d%	A
akeys		keys on array		ck_each		t%	A
avalues		values on array		ck_each		dt%	A

# Hashes.

each		each			ck_each		d%	H
values		values			ck_each		dt%	H
keys		keys			ck_each		t%	H
delete		delete			ck_delete	%	S
exists		exists			ck_exists	is%	S
rv2hv		hash dereference	ck_rvconst	d1	
helem		hash element		ck_null		s2	H S
hslice		hash slice		ck_null		m@	H L
kvhslice	key/value hash slice	ck_null		m@	H L

# mixed array and hash access

multideref	array or hash lookup	ck_null		ds+	

# Explosives and implosives.

unpack		unpack			ck_fun		u@	S S?
pack		pack			ck_fun		fmst@	S L
split		split			ck_split	t@	S S S
join		join or string		ck_join		fmst@	S L

# List operators.

list		list			ck_null		m@	L
lslice		list slice		ck_null		2	H L L
anonlist	anonymous array ([])	ck_fun		ms@	L
anonhash	anonymous hash ({})	ck_fun		ms@	L

splice		splice			ck_fun		m@	A S? S? L
push		push			ck_fun		imsT@	A L
pop		pop			ck_shift	s%	A?
shift		shift			ck_shift	s%	A?
unshift		unshift			ck_fun		imsT@	A L
sort		sort			ck_sort		m@	C? L
reverse		reverse			ck_fun		mt@	L

grepstart	grep			ck_grep		m@	C L
grepwhile	grep iterator		ck_null		t|	

mapstart	map			ck_grep		m@	C L
mapwhile	map iterator		ck_null		t|

# Range stuff.

range		flipflop		ck_null		|	S S
flip		range (or flip)		ck_null		1	S S
flop		range (or flop)		ck_null		1

# Control.

and		logical and (&&)		ck_null		|	
or		logical or (||)			ck_null		|	
xor		logical xor			ck_null		fs2	S S	
dor		defined or (//)			ck_null		|
cond_expr	conditional expression		ck_null		|	
andassign	logical and assignment (&&=)	ck_null		s|	
orassign	logical or assignment (||=)	ck_null		s|	
dorassign	defined or assignment (//=)	ck_null		s|

method		method lookup		ck_method	d.
entersub	subroutine entry	ck_subr		dm1	L
leavesub	subroutine exit		ck_null		1	
leavesublv	lvalue subroutine return	ck_null		1	
caller		caller			ck_fun		t%	S?
warn		warn			ck_fun		imst@	L
die		die			ck_fun		imst@	L
reset		symbol reset		ck_fun		is%	S?

lineseq		line sequence		ck_null		@	
nextstate	next statement		ck_null		s;	
dbstate		debug next statement	ck_null		s;	
unstack		iteration finalizer	ck_null		s0
enter		block entry		ck_null		0	
leave		block exit		ck_null		@	
scope		block			ck_null		@	
enteriter	foreach loop entry	ck_null		d{	
iter		foreach loop iterator	ck_null		0	
enterloop	loop entry		ck_null		d{	
leaveloop	loop exit		ck_null		2	
return		return			ck_return	m@	L
last		last			ck_null		s}	
next		next			ck_null		s}	
redo		redo			ck_null		s}	
dump		dump			ck_null		ds}	
goto		goto			ck_null		s}	
exit		exit			ck_fun		s%	S?
method_named	method with known name	ck_null		d.
method_super	super with known name	ck_null		d.
method_redir	redirect method with known name	ck_null	d.
method_redir_super	redirect super method with known name	ck_null	d.

entergiven	given()			ck_null		d|
leavegiven	leave given block	ck_null		1
enterwhen	when()			ck_null		d|
leavewhen	leave when block	ck_null		1
break		break			ck_null		0
continue	continue		ck_null		0

# I/O.

open		open			ck_open		ismt@	F S? L
close		close			ck_fun		is%	F?
pipe_op		pipe			ck_fun		is@	F F

fileno		fileno			ck_fun		ist%	F
umask		umask			ck_fun		ist%	S?
binmode		binmode			ck_fun		s@	F S?

tie		tie			ck_fun		idms@	R S L
untie		untie			ck_fun		is%	R
tied		tied			ck_fun		ds%	R
dbmopen		dbmopen			ck_fun		is@	H S S
dbmclose	dbmclose		ck_fun		is%	H

sselect		select system call	ck_select	t@	S S S S
select		select			ck_select	st@	F?

getc		getc			ck_eof		st%	F?
read		read			ck_fun		imst@	F R S S?
enterwrite	write			ck_fun		is%	F?
leavewrite	write exit		ck_null		1	

prtf		printf			ck_listiob	ims@	F? L
print		print			ck_listiob	ims@	F? L
say		say			ck_listiob	ims@	F? L

sysopen		sysopen			ck_fun		s@	F S S S?
sysseek		sysseek			ck_fun		s@	F S S
sysread		sysread			ck_fun		imst@	F R S S?
syswrite	syswrite		ck_fun		imst@	F S S? S?

eof		eof			ck_eof		is%	F?
tell		tell			ck_tell		st%	F?
seek		seek			ck_tell		s@	F S S
# truncate really behaves as if it had both "S S" and "F S"
truncate	truncate		ck_trunc	is@	S S

fcntl		fcntl			ck_fun		st@	F S S
ioctl		ioctl			ck_fun		st@	F S S
flock		flock			ck_fun		isT@	F S

# Sockets.  OP_IS_SOCKET wants them consecutive (so moved 1st 2)

send		send			ck_fun		imst@	Fs S S S?
recv		recv			ck_fun		imst@	Fs R S S

socket		socket			ck_fun		is@	Fs S S S
sockpair	socketpair		ck_fun		is@	Fs Fs S S S

bind		bind			ck_fun		is@	Fs S
connect		connect			ck_fun		is@	Fs S
listen		listen			ck_fun		is@	Fs S
accept		accept			ck_fun		ist@	Fs Fs
shutdown	shutdown		ck_fun		ist@	Fs S

gsockopt	getsockopt		ck_fun		is@	Fs S S
ssockopt	setsockopt		ck_fun		is@	Fs S S S

getsockname	getsockname		ck_fun		is%	Fs
getpeername	getpeername		ck_fun		is%	Fs

# Stat calls.  OP_IS_FILETEST wants them consecutive.

lstat		lstat			ck_ftst		u-	F?
stat		stat			ck_ftst		u-	F?
ftrread		-R			ck_ftst		isu-	F-+
ftrwrite	-W			ck_ftst		isu-	F-+
ftrexec		-X			ck_ftst		isu-	F-+
fteread		-r			ck_ftst		isu-	F-+
ftewrite	-w			ck_ftst		isu-	F-+
fteexec		-x			ck_ftst		isu-	F-+
ftis		-e			ck_ftst		isu-	F-
ftsize		-s			ck_ftst		istu-	F-
ftmtime		-M			ck_ftst		stu-	F-
ftatime		-A			ck_ftst		stu-	F-
ftctime		-C			ck_ftst		stu-	F-
ftrowned	-O			ck_ftst		isu-	F-
fteowned	-o			ck_ftst		isu-	F-
ftzero		-z			ck_ftst		isu-	F-
ftsock		-S			ck_ftst		isu-	F-
ftchr		-c			ck_ftst		isu-	F-
ftblk		-b			ck_ftst		isu-	F-
ftfile		-f			ck_ftst		isu-	F-
ftdir		-d			ck_ftst		isu-	F-
ftpipe		-p			ck_ftst		isu-	F-
ftsuid		-u			ck_ftst		isu-	F-
ftsgid		-g			ck_ftst		isu-	F-
ftsvtx		-k			ck_ftst		isu-	F-
ftlink		-l			ck_ftst		isu-	F-
fttty		-t			ck_ftst		is-	F-
fttext		-T			ck_ftst		isu-	F-
ftbinary	-B			ck_ftst		isu-	F-

# File calls.

# chdir really behaves as if it had both "S?" and "F?"
chdir		chdir			ck_trunc	isT%	S?
chown		chown			ck_fun		imsT@	L
chroot		chroot			ck_fun		isTu%	S?
unlink		unlink			ck_fun		imsTu@	L
chmod		chmod			ck_fun		imsT@	L
utime		utime			ck_fun		imsT@	L
rename		rename			ck_fun		isT@	S S
link		link			ck_fun		isT@	S S
symlink		symlink			ck_fun		isT@	S S
readlink	readlink		ck_fun		stu%	S?
mkdir		mkdir			ck_fun		isTu@	S? S?
rmdir		rmdir			ck_fun		isTu%	S?

# Directory calls.

open_dir	opendir			ck_fun		is@	F S
readdir		readdir			ck_fun		%	DF
telldir		telldir			ck_fun		st%	DF
seekdir		seekdir			ck_fun		s@	DF S
rewinddir	rewinddir		ck_fun		s%	DF
closedir	closedir		ck_fun		is%	DF

# Process control.

fork		fork			ck_null		ist0	
wait		wait			ck_null		isT0	
waitpid		waitpid			ck_fun		isT@	S S
system		system			ck_exec		imsT@	S? L
exec		exec			ck_exec		imsT@	S? L
kill		kill			ck_fun		imsT@	L
getppid		getppid			ck_null		isT0	
getpgrp		getpgrp			ck_fun		isT%	S?
setpgrp		setpgrp			ck_fun		isT@	S? S?
getpriority	getpriority		ck_fun		isT@	S S
setpriority	setpriority		ck_fun		isT@	S S S

# Time calls.

time		time			ck_null		isT0	
tms		times			ck_null		0	
localtime	localtime		ck_fun		t%	S?
gmtime		gmtime			ck_fun		t%	S?
alarm		alarm			ck_fun		istu%	S?
sleep		sleep			ck_fun		isT%	S?

# Shared memory.

shmget		shmget			ck_fun		imst@	S S S
shmctl		shmctl			ck_fun		imst@	S S S
shmread		shmread			ck_fun		imst@	S S S S
shmwrite	shmwrite		ck_fun		imst@	S S S S

# Message passing.

msgget		msgget			ck_fun		imst@	S S
msgctl		msgctl			ck_fun		imst@	S S S
msgsnd		msgsnd			ck_fun		imst@	S S S
msgrcv		msgrcv			ck_fun		imst@	S S S S S

# Semaphores.

semop		semop			ck_fun		imst@	S S
semget		semget			ck_fun		imst@	S S S
semctl		semctl			ck_fun		imst@	S S S S

# Eval.

require		require			ck_require	dsu%	S?
dofile		do "file"		ck_fun		d1	S
hintseval	eval hints		ck_svconst	s$
entereval	eval "string"		ck_eval		du%	S?
leaveeval	eval "string" exit	ck_null		1	S
entertry	eval {block}		ck_eval		d|	
leavetry	eval {block} exit	ck_null		@	

# Get system info.

ghbyname	gethostbyname		ck_fun		%	S
ghbyaddr	gethostbyaddr		ck_fun		@	S S
ghostent	gethostent		ck_null		0	
gnbyname	getnetbyname		ck_fun		%	S
gnbyaddr	getnetbyaddr		ck_fun		@	S S
gnetent		getnetent		ck_null		0	
gpbyname	getprotobyname		ck_fun		%	S
gpbynumber	getprotobynumber	ck_fun		@	S
gprotoent	getprotoent		ck_null		0	
gsbyname	getservbyname		ck_fun		@	S S
gsbyport	getservbyport		ck_fun		@	S S
gservent	getservent		ck_null		0	
shostent	sethostent		ck_fun		is%	S
snetent		setnetent		ck_fun		is%	S
sprotoent	setprotoent		ck_fun		is%	S
sservent	setservent		ck_fun		is%	S
ehostent	endhostent		ck_null		is0	
enetent		endnetent		ck_null		is0	
eprotoent	endprotoent		ck_null		is0	
eservent	endservent		ck_null		is0	
gpwnam		getpwnam		ck_fun		%	S
gpwuid		getpwuid		ck_fun		%	S
gpwent		getpwent		ck_null		0	
spwent		setpwent		ck_null		is0	
epwent		endpwent		ck_null		is0	
ggrnam		getgrnam		ck_fun		%	S
ggrgid		getgrgid		ck_fun		%	S
ggrent		getgrent		ck_null		0	
sgrent		setgrent		ck_null		is0	
egrent		endgrent		ck_null		is0	
getlogin	getlogin		ck_null		st0	

# Miscellaneous.

syscall		syscall			ck_fun		imst@	S L

# For multi-threading
lock		lock			ck_rfun		s%	R

# For state support

once		once			ck_null		|	

custom		unknown custom operator		ck_null		0

# For CORE:: subs
coreargs	CORE:: subroutine	ck_null		$	

runcv		__SUB__			ck_null		s0

# fc and \F
fc		fc			ck_fun		fstu%	S?

padcv		private subroutine	ck_null		d0
introcv		private subroutine	ck_null		d0
clonecv		private subroutine	ck_null		d0
padrange	list of private variables	ck_null		d0
refassign	lvalue ref assignment	ck_refassign	ds2
lvref		lvalue ref assignment	ck_null		d%
lvrefslice	lvalue ref assignment	ck_null		d@
lvavref		lvalue array reference	ck_null		d%
anonconst	anonymous constant	ck_null		ds1