1
0
mirror of https://github.com/golang/go synced 2024-10-04 11:11:21 -06:00
Commit Graph

545 Commits

Author SHA1 Message Date
Russ Cox
3aa006b8cd better 64-bit handling in 8g.
fewer moves, fewer stupid LEALs.
powser1 runs (with evaln commented out).
beginnings of floating point.

R=ken
OCL=29540
CL=29543
2009-05-28 15:48:47 -07:00
Russ Cox
e81d97ea84 clean up gmove:
* conversions all in one place.
	* no separate load, store phases;
	  direct memory addressing when possible
	  (this is the x86 after all!).
	  avoids extra registers, extra MOVQs.
	* fixes int32 -> uint64 bug
	  (was zero-extending)

R=ken
OCL=29482
CL=29484
2009-05-27 23:55:14 -07:00
Ken Thompson
b3f303ec9a bug 153
R=r
OCL=29479
CL=29479
2009-05-27 18:37:02 -07:00
Ken Thompson
64c3fe05bf string([]int) conversion
R=r
OCL=29466
CL=29466
2009-05-27 15:38:02 -07:00
Russ Cox
18890eebbf fix bug154; tweak bug153 exit status
R=ken
OCL=29448
CL=29448
2009-05-27 10:16:13 -07:00
Russ Cox
a8e4ed6a3d 8g: 64-bit arithmetic and assorted bug fixes;
can run 64-bit sieve and powser.
interfaces are limping along.
next hurdle is floating point.

R=ken
OCL=29418
CL=29423
2009-05-26 21:07:26 -07:00
Ken Thompson
b46e7c4d3c bug 152
R=r
OCL=29419
CL=29419
2009-05-26 19:48:39 -07:00
Ken Thompson
51ddddc67e bug 151
R=r
OCL=29409
CL=29409
2009-05-26 16:30:35 -07:00
Ken Thompson
850cd6a2fe bug 150
R=r
OCL=29405
CL=29405
2009-05-26 15:56:37 -07:00
Russ Cox
021abfbd28 8g: hello world works again
* string format changed
	* files got renamed
	* new files that i forgot to check in last time
updates are all copy and paste from 6g

R=ken
OCL=29385
CL=29400
2009-05-26 14:46:06 -07:00
Ken Thompson
802e1a6104 static init reenabled
R=r
OCL=29358
CL=29358
2009-05-25 19:40:41 -07:00
Ken Thompson
4238b18344 1. check for dups in complex literals
structtype{a:1, a:2}
   maptypetype{"xx":1, "xx":2}
   arraytypetype{5:1, 5:2}
2. bug in registerization concerning
   alias of a struct and one of its elements
3. code optimization of struct.field
   (which exposed bug in 2)

R=r
OCL=29315
CL=29315
2009-05-23 15:34:29 -07:00
Russ Cox
4beac9985b simplifying grammar: delete LBASETYPE and LACONST.
take 2

R=ken
OCL=29304
CL=29306
2009-05-22 22:46:06 -07:00
Russ Cox
ca2fe5d8bd Automated g4 rollback of changelist 29302.
*** Reason for rollback ***

too many files included

*** Original change description ***

simplifying grammar: delete LBASETYPE and LACONST

R=ken
OCL=29303
CL=29303
2009-05-22 22:43:57 -07:00
Russ Cox
2a4dcfffc9 simplifying grammar: delete LBASETYPE and LACONST
R=ken
OCL=29300
CL=29302
2009-05-22 22:42:12 -07:00
Russ Cox
f4d3d22a94 enforce channel direction
R=ken
OCL=29209
CL=29216
2009-05-21 17:32:44 -07:00
Russ Cox
c2fa45b973 allow type name as key to accomodate anonymous fields.
update tests.

R=ken
OCL=29207
CL=29207
2009-05-21 16:31:10 -07:00
Ken Thompson
bba10b3f49 some array init bugs
renamed 6g/(gen|align|obj).c

R=r
OCL=29205
CL=29205
2009-05-21 15:44:06 -07:00
Russ Cox
8b6b380605 stricter rules for assignment.
when assigning a multifield object
(structs or arrays of structs) they
must not contain any fields that could
not be assigned individually.

R=ken
OCL=29192
CL=29194
2009-05-21 14:06:24 -07:00
Ken Thompson
a016081f43 added key:val extension to
structure and array literals

R=r
OCL=29190
CL=29190
2009-05-21 13:46:07 -07:00
Russ Cox
23e62d169f stricter interface conversion rule: i.(T)
must have non-nil i.

R=ken
OCL=29136
CL=29136
2009-05-20 18:23:19 -07:00
Russ Cox
a39bae095a ifaceop was being called with integers
that came from two different enums.
spilt into ifacecvt and ifaceop depending
on which enum the argument is.

R=ken
OCL=29122
CL=29122
2009-05-20 15:09:50 -07:00
Russ Cox
2da5022bcf change representation of interface values.
this is not a user-visible change.

before, all interface values were

	struct Itype {
		Sigt *type;
		Sigi *inter;
		void *method[n];
	}

	struct Iface {
		void *addr;
		Itype *itype;
	}

the itype is basically a vtable, but it's unnecessary
if the static type is interface{ }.
for interface values with static type empty, the
new representation is

	struct Eface {
		void *addr;
		Sigt *type;
	}

this complicates the code somewhat, but
it reduces the number of Itypes that
have to be computed and cached,
it opens up opportunities to avoid function
calls in a few common cases,
and it will make it possible to lay out
interface{} values at compile time,
which i think i'll need for the new reflection.

R=ken
OCL=28701
CL=29121
2009-05-20 14:57:55 -07:00
Russ Cox
47e5152790 fix implicit star for range on *map, *[].
do not update lineno from ONAME nodes,
	because they have declaration lineno not use.
show actual name in top-level statement error.

before
runtime.a:7: x.go:5: walkstate: NAME not a top level statement

after
x.go:14: walkstate: runtime.Goexit not a top level statement

R=ken
OCL=29113
CL=29116
2009-05-20 14:24:23 -07:00
Ken Thompson
b91a043d02 static initialization of slices
R=r
OCL=29016
CL=29016
2009-05-18 22:11:22 -07:00
Ken Thompson
62231e91d0 static initialization with DATA statements
structs and arrays are done
slices and maps are yet to do

R=r
OCL=28977
CL=28977
2009-05-17 19:16:16 -07:00
Ken Thompson
52b0f77bf9 static initialization
structure set up - no change yet

R=r
OCL=28966
CL=28966
2009-05-16 13:29:08 -07:00
Rob Pike
a8db4593ab fix spelling error in message
R=ken
OCL=28814
CL=28814
2009-05-14 09:59:16 -07:00
Russ Cox
d06a79e31b no need for compiler to hard-code definition of runtime.
use the actual go source instead.

R=r
DELTA=90  (66 added, 18 deleted, 6 changed)
OCL=28708
CL=28719
2009-05-12 16:15:52 -07:00
Russ Cox
b3533dfd72 6g:
new type equality restrictions
	better handling of renamed packages
	"sys" is no longer available to programs

R=ken
OCL=28553
CL=28578
2009-05-08 15:40:31 -07:00
Russ Cox
918afd9491 move things out of sys into os and runtime
R=r
OCL=28569
CL=28573
2009-05-08 15:21:41 -07:00
Rob Pike
c367d1b789 Move sys.Reflect and sys.Unreflect into unsafe.
R=rsc
DELTA=19  (4 added, 5 deleted, 10 changed)
OCL=28563
CL=28566
2009-05-08 14:57:56 -07:00
Russ Cox
d4fa253837 eqtype(t1, t2, 0) => eqtype(t1, t2)
R=ken
OCL=28559
CL=28562
2009-05-08 14:40:38 -07:00
Russ Cox
401a95aa83 if a struct s contains an anonymous interface value
with method m, s.m() is ok and m now shows up
in s's method set for interface runtime.

see http://cl/28419-p2 for new test interface10.go.

R=ken
OCL=28420
CL=28423
2009-05-07 13:42:47 -07:00
Russ Cox
88a1aa8e1a 6g: error messages
part 2; missing files

R=ken
OCL=28408
CL=28410
2009-05-07 10:30:22 -07:00
Russ Cox
b5e212ffdd 6g: error messages
replace "shape error across CALL" with more information.

x.go:7: not enough arguments to CALL
	a int, b int
	int
x.go:10: assignment count mismatch: 3 = 2
x.go:12: too many arguments to RETURN
	[no arguments expected]
	int, int, int

also leave type alone after conversion failure,
for later errors:

bug049.go:6: cannot convert nil constant to string
bug049.go:6: illegal types for operand: EQ
	string
	nil		# this used to be blank

R=ken
OCL=28405
CL=28407
2009-05-07 10:29:35 -07:00
Russ Cox
a6ba5ec535 6g: new interface rules (code got simpler!)
R=ken
OCL=28374
CL=28378
2009-05-06 17:05:35 -07:00
Russ Cox
83cd4ee070 6g: generate string data as individual symbols,
so that 6l can discard strings used by dead code.
also, for short strings, generate DUPOK global
symbols so that references to, say, "%s: %s" in
multiple files result in only a single symbol.

R=ken
OCL=28361
CL=28361
2009-05-06 13:47:40 -07:00
Ken Thompson
c4de24981a signs on div and mod
R=r
OCL=28319
CL=28319
2009-05-05 21:19:58 -07:00
Russ Cox
3e9b171b79 6g bug: was dropping assignment of nil to globals
R=ken
OCL=28314
CL=28314
2009-05-05 17:33:51 -07:00
Russ Cox
f821e3c7c3 6g tweaks
* byteastring is no longer used
	* do not generate ODCL, OAS for globals
	  (wasn't generating any code but might
	  save one or two init functions)
	* do not call self from Init function

R=ken
OCL=28309
CL=28309
2009-05-05 16:53:46 -07:00
Ken Thompson
567a7bf664 more code optimization
1. dont clear external and heap objects
2. propagate constant assignment

R=r
OCL=28254
CL=28254
2009-05-04 21:48:46 -07:00
Ken Thompson
49f7494894 code optmization
drip init function if it doesnt do anything

R=r
OCL=28180
CL=28180
2009-05-01 18:55:16 -07:00
Russ Cox
83e976d53e bug146: array/slice conversion before I left missed conversions
R=ken
OCL=28120
CL=28124
2009-04-30 13:49:58 -07:00
Ken Thompson
7a98315c96 allow "defer close(chan)"
bug found by anton

R=r
OCL=28001
CL=28001
2009-04-28 17:20:18 -07:00
Ken Thompson
ad36c39211 bug 145
R=r
OCL=27979
CL=27979
2009-04-28 12:28:31 -07:00
Ken Thompson
b03b541b7a recognize a defined constant
as a new name in a later declaration
(bug 144)

R=r
OCL=27850
CL=27850
2009-04-24 16:43:31 -07:00
Ken Thompson
190a540892 2 minor bugs.
lv context for some [] operations
calling implicit(*map) before walk.

R=r
OCL=27706
CL=27706
2009-04-21 19:52:13 -07:00
Ken Thompson
b5e7562191 supply default indirection to
map indexing - bug 143

R=r
OCL=27695
CL=27695
2009-04-21 17:00:08 -07:00
Ken Thompson
34b6f642de mixed old/new declaration
exact spec:
a) must be a multi-assignment w :=
b) a proper subset of the lhs
   can be declared in same block
   with the same type with no
   "redeclaration" error

R=r
OCL=27610
CL=27610
2009-04-18 13:58:04 -07:00
Russ Cox
3ea8d854a3 make string(array) take []byte only (and thus *[10]byte but not [10]byte)
R=ken
OCL=27581
CL=27585
2009-04-16 23:07:30 -07:00
Russ Cox
1cb3b7d124 panicln: emit just one newline
R=ken
OCL=27537
CL=27545
2009-04-15 22:38:09 -07:00
Russ Cox
65d397f747 compiler implementation of array slice change
R=ken
OCL=27533
CL=27533
2009-04-15 20:27:22 -07:00
Russ Cox
935953a9f8 tweak interface warning heuristic.
some day i will fix this for real.

R=ken
OCL=27468
CL=27468
2009-04-14 19:57:27 -07:00
Russ Cox
a62467af93 fix stringrange test
R=ken
OCL=27353
CL=27353
2009-04-13 05:31:44 -07:00
Ken Thompson
a91a8042b4 range over strings
R=r
OCL=27332
CL=27332
2009-04-10 19:49:31 -07:00
Ken Thompson
3657061550 change representation of strings
R=r
OCL=27293
CL=27293
2009-04-09 18:16:21 -07:00
Russ Cox
f95da9a639 yet another attempt at auto-linking
store only the original import path string (+ .a)
if 6g resolves it to an archive file.
let 6l re-resolve the .a at link time.

this lets libraries build against an archive
in the current directory but get used
against an installed archive.

R=r
OCL=27244
CL=27244
2009-04-08 22:45:33 -07:00
Russ Cox
3067781ab9 func f() (int, int);
x := f();

used to give
	fatal error: dowidth fn struct struct { int; int }

now gives
	assignment count mismatch: 1 = 2

R=ken
OCL=27198
CL=27201
2009-04-07 22:20:37 -07:00
Russ Cox
d50c70d261 set line number for errors produced during walkstate.
R=ken
OCL=27145
CL=27145
2009-04-06 22:17:46 -07:00
Russ Cox
907cb4f1e6 fix both of anton's bugs:
* make([100]int) was being compiled to
	make([]int), kind of.
* []this = [100]that was working for any this, that.

turned up a typo in pipe_test.go

R=ken
OCL=27081
CL=27081
2009-04-03 23:20:51 -07:00
Russ Cox
39436f2a74 special case check for this situation
; cat >http.go
	package main
	import "http"  // intended the library, not this file
	^D
	; 6g http.go
	; 6g http.go
	http.go:4: export/package mismatch: init
	;

new error:

	http.6:7 http.go:3: cannot import package main

R=ken
OCL=27053
CL=27053
2009-04-02 21:46:19 -07:00
Russ Cox
07687705a4 type n t;
was copying a bit too much about t into n,
like whether the signature was queued to be printed.
(bug reported by anton)

was also editing t, meaning you could do
	type T int;
	func (p int) Meth() { }

both fixed.

R=ken
OCL=27052
CL=27052
2009-04-02 21:38:11 -07:00
Russ Cox
416b27548e use _f007·filename for func literals.
this avoids problems people have run into with
multiple closures in the same package.

when preparing filename, only cut off .go, not .anything.
this fixes a bug tgs ran into with foo.pb.go and foo.go
in the same package.

also turn bad identifier chars from filename into
underscores: a-b.pb.go => a_b_pb

R=ken
OCL=27050
CL=27050
2009-04-02 18:32:57 -07:00
Ken Thompson
9efd6b8a3d compiler falut for forgetting
the assignment on a type switch

R=r
OCL=27048
CL=27048
2009-04-02 18:06:43 -07:00
Russ Cox
58f5f4f18d use separate lex buf for better errors:
package main
func main() { func(){}() + + }

x.go:2: syntax error near _f001

becomes

x.go:2: syntax error near func

R=ken
OCL=27047
CL=27047
2009-04-02 17:59:09 -07:00
Russ Cox
6b07021a2b implement some more 8g
package main
	func main() {
		println("hello,", 123);
	}

R=ken
OCL=27043
CL=27043
2009-04-02 16:48:06 -07:00
Ken Thompson
2450c590e9 typeswitch - expression evaluated
twice instead of once.

R=r
OCL=27015
CL=27015
2009-04-01 21:28:59 -07:00
Russ Cox
aacdc25399 fix http://b/1748082
package main
var f = func(a, b int) int { return a + b }

R=ken
OCL=26935
CL=26935
2009-03-30 22:26:00 -07:00
Russ Cox
5e792b6c09 move portable object routines (especially
signature generation) into gc.

R=ken
OCL=26933
CL=26933
2009-03-30 21:31:29 -07:00
Russ Cox
941ed00b1d closure bug: carry along outnamed flag.
R=ken
OCL=26930
CL=26930
2009-03-30 19:21:36 -07:00
Russ Cox
bac922c6e1 move portable code generation (basic statements) to gc.
R=ken
OCL=26929
CL=26929
2009-03-30 19:15:07 -07:00
Russ Cox
d30285a6f5 move some portable pieces of 6g/gsubr.c into gc/subr.c
int	brcom(int);
	int	brrev(int);
	void	setmaxarg(Type*);
	Sig*	lsort(Sig*, int(*)(Sig*, Sig*));
	int	dotoffset(Node*, int*, Node**);
	void	stringpool(Node*);
	void	tempname(Node*, Type*);

R=ken
OCL=26922
CL=26922
2009-03-30 17:52:21 -07:00
Russ Cox
8e54729b5a move alignment calculations into gc
R=ken
OCL=26914
CL=26914
2009-03-30 17:09:28 -07:00
Russ Cox
e224b1ebdb don't crash on
unsafe.Alignof(struct{x float}{0}.x)

R=ken
OCL=26911
CL=26913
2009-03-30 17:07:30 -07:00
Russ Cox
531f242f5d move bits.c from 6g to gc
R=ken
OCL=26909
CL=26909
2009-03-30 16:13:11 -07:00
Russ Cox
a2cbc2998d don't write cmp's output to the c file.
cope better with p4 not found.

R=r
DELTA=3  (0 added, 0 deleted, 3 changed)
OCL=26877
CL=26879
2009-03-30 00:12:56 -07:00
Ken Thompson
b8be809c10 ^ type(const) now inverts "enough" bits
^ signed(const) becomes illegal
^ unsigned(const) becomes legal

R=r
OCL=26697
CL=26697
2009-03-24 16:40:38 -07:00
Russ Cox
5a68303a15 throw away most of the compat.h compatibility layer
in favor of the lib9 compatibility layer.  no need for two.

now that mycreate is gone, .6 files are 0644 not 0755.

TBR=r
OCL=26679
CL=26679
2009-03-24 12:12:57 -07:00
Ken Thompson
79fa5b65cb rewrote switch
fixed bug 141

R=r
OCL=26627
CL=26627
2009-03-22 20:54:21 -07:00
Russ Cox
54aa835b44 range over channels.
also fix multiple-evaluation bug in range over arrays.

R=ken
OCL=26576
CL=26576
2009-03-20 11:32:58 -07:00
Russ Cox
f7772627ad fix b/1722502
BUG=1722502
R=ken
OCL=26526
CL=26526
2009-03-18 19:20:54 -07:00
Ken Thompson
1cdcfda140 remove assignment cases from switch
R=r
OCL=26480
CL=26480
2009-03-18 12:13:42 -07:00
Ken Thompson
1e0c17e294 switch on false error
R=r
OCL=26434
CL=26434
2009-03-17 19:10:32 -07:00
Ken Thompson
0f469a99a3 binary search on type switches.
new feature 'case nil:' in type switch
will match iff the interface is nil.

R=r
OCL=26404
CL=26404
2009-03-17 13:58:38 -07:00
Ken Thompson
5136a9e1f7 change format of Sigt and Sigi
to allow room for type hash
needed for log-time type switch.

R=r
OCL=26354
CL=26354
2009-03-16 15:27:08 -07:00
Russ Cox
5fbadf0bc3 warn -> yyerror in mparith.
close two more bugs.

R=ken
OCL=26226
CL=26226
2009-03-12 19:57:30 -07:00
Russ Cox
8f194bf5ff make 6g constants behave as ken proposes. (i hope.)
various bug fixes and tests involving constants.

test/const1.go is the major new test case.

R=ken
OCL=26216
CL=26224
2009-03-12 19:04:38 -07:00
Ken Thompson
6eb54cb05b chan flags close/closed installed
runtime not finished.

R=r
OCL=26217
CL=26217
2009-03-12 17:55:11 -07:00
Ken Thompson
bb02e481d2 added bitclear operators &^ and &^=
R=r
OCL=26152
CL=26152
2009-03-11 19:59:35 -07:00
Ken Thompson
767845b6fa bug 125
R=r
OCL=26146
CL=26146
2009-03-11 17:37:04 -07:00
Russ Cox
4eb7ceba58 complain when trying to put T into an interface
if T has pointer methods.  this is just a heuristic
but it catches the problem robert ran into and
lets me put the larger interface issues aside for
now.  found one bug in pretty.

R=ken
OCL=26141
CL=26141
2009-03-11 16:06:17 -07:00
Ian Lance Taylor
062d6998ab Add support for a -I option. -I DIR searches for packages in
DIR.

R=ken,rsc
DELTA=49  (41 added, 2 deleted, 6 changed)
OCL=26057
CL=26092
2009-03-10 20:03:31 -07:00
Ken Thompson
d27e9f528d bug086
R=r
OCL=26090
CL=26090
2009-03-10 19:16:31 -07:00
Ken Thompson
0c4f4587d7 bug with interaction of variables
declared in cases and heap allocation

R=r
OCL=26064
CL=26064
2009-03-10 16:49:34 -07:00
Ken Thompson
820f42d977 binary search for constant case statements.
R=r
OCL=25890
CL=25890
2009-03-07 17:33:42 -08:00
Ken Thompson
a4a10ed856 1. type switches
2. fixed fault on bug128
3. got rid of typeof
4. fixed bug in t,ok = I2T

R=r
OCL=25873
CL=25873
2009-03-06 17:50:43 -08:00
Russ Cox
af678a593d new approach for generating sysimport.c
(renamed to avoid any conflict with old p4 copies).

this approach doesn't require auto-generating
files also kept in p4, so it should be easier on
go users who don't sync very often.

this approach will be more work for go developers:
builtin.c needs to be copied to builtin.c.boot in p4
as new functions are added.  mkbuiltin does this
for certain $USERs to help us remember.

R=r
DELTA=343  (176 added, 162 deleted, 5 changed)
OCL=25803
CL=25805
2009-03-05 18:26:12 -08:00
Russ Cox
63985b489b bug085 bug129
R=ken
OCL=25787
CL=25791
2009-03-05 15:57:03 -08:00
Ken Thompson
bf983477a2 new switch implementation
in preparation of type switch.
no functional change (yet).

R=r
OCL=25784
CL=25788
2009-03-05 15:49:34 -08:00