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339 Commits

Author SHA1 Message Date
Ken Thompson
103d756663 loader fix 
static init redo

R=rsc
CC=golang-dev
https://golang.org/cl/2254041
 2010-09-20 14:23:25 -07:00
Ken Thompson
d348971103 add readonly flag to static initialization 
R=rsc
CC=golang-dev
https://golang.org/cl/2187042
 2010-09-16 16:42:38 -07:00
Alex Brainman
77a70ddb7b gc: fix symbol table generation on windows 
gc records full, '/' delimited, filenames now.

R=rsc
CC=golang-dev
https://golang.org/cl/1962042
 2010-09-12 18:07:13 +10:00
Russ Cox
698fb4f192 6g, 6l, 8g, 8l: move read-only data to text segment 
Changing 5g and 5l too, but it doesn't work yet.

R=ken2
CC=golang-dev
https://golang.org/cl/2136047
 2010-09-12 00:17:44 -04:00
Russ Cox
82ee481dfc gc: remove &[10]int -> []int conversion 
Fixes #829.

R=ken2
CC=golang-dev
https://golang.org/cl/2124044
 2010-09-10 11:53:27 -04:00
Robert Griesemer
0eb0afde9a fix build 
R=rsc, ken2
CC=golang-dev
https://golang.org/cl/2118050
 2010-09-09 14:42:49 -07:00
Kyle Consalus
4d903504b3 runtime: special case copy, equal for one-word interface values 
Based on the observation that a great number of the types that
are copied or compared in interfaces, maps, and channels are
word-sized, this uses specialized copy and equality functions
for them that use a word instead of 4 or 8 bytes. Seems to yield
0-6% improvements in performance in the benchmarks I've run.
For example, with the regexp benchmarks:

Before:
regexp.BenchmarkLiteral   500000       3.26 µs/op
regexp.BenchmarkNotLiteral    100000      13.67 µs/op
regexp.BenchmarkMatchClass    100000      18.72 µs/op
regexp.BenchmarkMatchClass_InRange    100000      20.04 µs/op
regexp.BenchmarkReplaceAll    100000      27.85 µs/op

After:
regexp.BenchmarkLiteral   500000       3.11 µs/op
regexp.BenchmarkNotLiteral    200000      13.29 µs/op
regexp.BenchmarkMatchClass    100000      17.65 µs/op
regexp.BenchmarkMatchClass_InRange    100000      18.49 µs/op
regexp.BenchmarkReplaceAll    100000      26.34 µs/op

R=rsc
CC=golang-dev
https://golang.org/cl/1967047
 2010-08-26 13:32:40 -04:00
Russ Cox
b1311cbc93 gc: fix parenthesization check 
Cannot use paren field in Node because all
instances of a given symbol name use the same Node.

Fixes #1022.

R=ken2
CC=golang-dev
https://golang.org/cl/2015043
 2010-08-23 23:10:25 -04:00
Russ Cox
c6cb303a8a gc: bug299, bug300 
R=ken2
CC=golang-dev
https://golang.org/cl/1731057
 2010-08-03 00:53:32 -07:00
Russ Cox
491a3ca5b7 gc: fix SIGBUS 
R=ken2
CC=golang-dev
https://golang.org/cl/1906042
 2010-07-28 18:21:50 -07:00
Russ Cox
f930d28164 5g: fix build 
R=ken2
CC=golang-dev
https://golang.org/cl/1893042
 2010-07-27 13:43:58 -07:00
Russ Cox
711f075987 gc: include signal.h (fix build) 
R=ken2
CC=golang-dev
https://golang.org/cl/1871049
 2010-07-26 18:41:36 -07:00
Russ Cox
607eaea456 gc: fix smaller-than-pointer-sized receivers in interfaces 
Fixes #812.

R=ken2
CC=golang-dev
https://golang.org/cl/1904041
 2010-07-26 15:25:10 -07:00
Russ Cox
cdb446feb5 gc: bug292 
Fixes #843.

R=ken2
CC=golang-dev
https://golang.org/cl/1729051
 2010-07-15 16:13:47 -07:00
Russ Cox
691d765121 gc: bug274 
R=ken2
CC=golang-dev
https://golang.org/cl/1742044
 2010-07-15 15:05:56 -07:00
Ken Thompson
33da9afc3e optimization of static initialization 
R=rsc
CC=golang-dev
https://golang.org/cl/1677049
 2010-06-27 17:37:01 -07:00
Russ Cox
a212d174ac gc: better error messages for interface failures, conversions 
x.go:13: cannot use t (type T) as type Reader in assignment:
	T does not implement Reader (Read method requires pointer receiver)
x.go:19: cannot use q (type Q) as type Reader in assignment:
	Q does not implement Reader (missing Read method)
		have read()
		want Read()
x.go:22: cannot use z (type int) as type Reader in assignment:
	int does not implement Reader (missing Read method)

x.go:24: too many arguments to conversion to complex: complex(1, 3)

R=ken2
CC=golang-dev
https://golang.org/cl/1736041
 2010-06-20 11:45:53 -07:00
Russ Cox
d5a80d0ba4 gc: no more ... 
various cleanup, deleting unused code

R=ken2
CC=golang-dev
https://golang.org/cl/1663041
 2010-06-14 11:24:51 -07:00
Russ Cox
76da2780c3 gc: less aggressive name binding, for better line numbers in errors 
Cleans up a few other corner cases too.

R=ken2
CC=golang-dev
https://golang.org/cl/1592045
 2010-06-12 11:17:24 -07:00
Russ Cox
d20ad1c75a gc: change -u to require imports to be marked safe 
R=ken2
CC=golang-dev
https://golang.org/cl/1597043
 2010-06-11 15:28:43 -07:00
Russ Cox
a2a7d473f4 gc: more cleanup 
* disallow surrogate pair runes.
 * diagnose impossible type assertions
 * eliminate another static buffer.
 * do not overflow lexbuf.
 * add -u flag to disable package unsafe.

R=ken2
CC=golang-dev
https://golang.org/cl/1619042
 2010-06-09 11:00:55 -07:00
Russ Cox
565b5dc076 gc: new typechecking rules 
* Code for assignment, conversions now mirrors spec.
* Changed some snprint -> smprint.
* Renamed runtime functions to separate
  interface conversions from type assertions:
  convT2I, assertI2T, etc.
* Correct checking of \U sequences.

Fixes #840.
Fixes #830.
Fixes #778.

R=ken2
CC=golang-dev
https://golang.org/cl/1303042
 2010-06-08 18:50:02 -07:00
Ken Thompson
b0283611e4 fix issue 798 
cannot allocate an audomatic temp
while real registers are allocated.
there is a chance that the automatic
will be allocated to one of the
allocated registers. the fix is to
not registerize such variables.

R=rsc
CC=golang-dev
https://golang.org/cl/1202042
 2010-05-20 17:31:28 -07:00
Russ Cox
69a2e1dc52 gc: better windows detection 
R=ken2
CC=golang-dev
https://golang.org/cl/944043
 2010-04-27 17:19:15 -07:00
Russ Cox
3bcef5ac30 gc: fix islocalname on windows 
Fixes #732.

R=ken2
CC=golang-dev
https://golang.org/cl/956050
 2010-04-27 13:52:43 -07:00
Russ Cox
9b1507b050 gc: implement panic and recover 
R=ken2, r, ken3
CC=golang-dev
https://golang.org/cl/831042
 2010-03-31 11:46:01 -07:00
Russ Cox
01eaf780a8 gc: add panic and recover (still unimplemented in runtime) 
main semantic change is to enforce single argument to panic.

runtime: change to 1-argument panic.
use String method on argument if it has one.

R=ken2, r
CC=golang-dev
https://golang.org/cl/812043
 2010-03-30 10:53:16 -07:00
Ken Thompson
623dfd1b07 depricate panicln 
R=rsc
CC=golang-dev
https://golang.org/cl/743041
 2010-03-24 16:53:54 -07:00
Russ Cox
4408659e81 gc: various map-related bug fixes 
Fixes #687.

R=ken2
CC=golang-dev
https://golang.org/cl/680042
 2010-03-22 18:51:14 -07:00
Ken Thompson
8021296179 issue 682 
complex DATA statement fo
initialization of complex variables.

R=rsc
CC=golang-dev
https://golang.org/cl/634045
 2010-03-20 18:50:01 -07:00
Ken Thompson
426099f42e 6g complex type usable 
8g and 5g have stubs to ignore complex

R=rsc
CC=golang-dev
https://golang.org/cl/257042
 2010-03-05 20:16:04 -08:00
Russ Cox
3910161307 gc: implement []int(string) and []byte(string) 
R=ken2
CC=golang-dev
https://golang.org/cl/224060
 2010-02-25 15:11:07 -08:00
Ken Thompson
713e3e1541 more complex - constants 
import and export

R=rsc
CC=golang-dev
https://golang.org/cl/214050
 2010-02-18 14:46:28 -08:00
Russ Cox
1734cb02e7 gc: recursive interface embedding 
Fixes #287.

R=ken2
CC=golang-dev
https://golang.org/cl/215048
 2010-02-18 11:15:36 -08:00
Ken Thompson
33d6a260c1 new types complex, complex64 and complex128 
only front-end compiler work.
best to do thin in 3 steps
1. frontend
2. backend
3. lib

R=rsc
CC=golang-dev
https://golang.org/cl/214042
 2010-02-17 22:08:30 -08:00
Russ Cox
5ab8f00bf8 gc: diagnose invalid array bounds 
Fixes #587.

R=ken2
CC=golang-dev
https://golang.org/cl/207085
 2010-02-12 13:59:02 -08:00
Russ Cox
674458e1c4 gc: bug246 
R=ken2
CC=golang-dev
https://golang.org/cl/198057
 2010-02-01 23:05:15 -08:00
Russ Cox
0bd41e2ff0 gc: bug242 
R=ken2
CC=golang-dev
https://golang.org/cl/198053
 2010-02-01 22:18:51 -08:00
Russ Cox
68796b0270 gc: add ... T, rework plain ... 
No longer a distinct type; now a property of func types.

R=ken2
CC=golang-dev
https://golang.org/cl/197042
 2010-02-01 00:25:59 -08:00
Russ Cox
1912632019 runtime, type switch: eliminate package global name space assumption 
bonus: type switch now detects multiple uses of identical interface types.
bonus: interface types are now order-independent, following the spec.

R=ken2
CC=golang-dev
https://golang.org/cl/194053
 2010-01-25 18:23:20 -08:00
Russ Cox
1cecac8134 gc: record full package paths in runtime type data 
detect compilation of special package runtime with
compiler flag instead of package name.

R=ken2
CC=golang-dev
https://golang.org/cl/193080
 2010-01-24 23:33:59 -08:00
Russ Cox
fd150e77e1 gc: cut some dead code, fix 6g -S output 
R=ken2
CC=golang-dev
https://golang.org/cl/193079
 2010-01-24 22:36:26 -08:00
Russ Cox
758f2bc556 eliminate the package global name space assumption in object files 
5g/6g/8g: add import statements to export metadata, mapping package path to package name.
	recognize "" as the path of the package in export metadata.
	use "" as the path of the package in object symbol names.

5c/6c/8c, 5a/6a/8a: rewrite leading . to "". so that ·Sin means Sin in this package.

5l/6l/8l: rewrite "" in symbol names as object files are read.

gotest: handle new symbol names.

gopack: handle new import lines in export metadata.

Collectively, these changes eliminate the assumption of a global
name space in the object file formats.  Higher level pieces such as
reflect and the computation of type hashes still depend on the
assumption; we're not done yet.

R=ken2, r, ken3
CC=golang-dev
https://golang.org/cl/186263
 2010-01-22 17:06:20 -08:00
Russ Cox
a6736fa4ff cleanup toward eliminating package global name space 
* switch to real dot (.) instead of center dot (·) everywhere in object files.
    before it was half and half depending on where in the name it appeared.
  * in 6c/6a/etc identifiers, · can still be used but turns into . immediately.
  * in export metadata, replace package identifiers with quoted strings
    (still package names, not paths).

R=ken2, r
CC=golang-dev
https://golang.org/cl/190076
 2010-01-19 21:34:44 -08:00
Russ Cox
5f132b93eb gc: various C nits, found by plan 9 compiler. 
reported by erik quanstrom.

R=ken2
https://golang.org/cl/181071
 2009-12-27 09:32:30 -08:00
Russ Cox
0d668259dc gc: method expressions on concrete types 
R=ken2
https://golang.org/cl/180092
 2009-12-18 17:24:58 -08:00
Russ Cox
d122bb2193 gc: double-check usage of ... 
Fixes #423.

R=ken2
https://golang.org/cl/180045
 2009-12-15 14:26:50 -08:00
Russ Cox
3997495dc3 gc: semicolons 
Fixes #89.
Fixes #92.
Fixes #118.
Fixes #182.
Fixes #328.
Fixes #340.

R=ken2, ken3
CC=golang-dev
https://golang.org/cl/172049
 2009-12-11 15:59:41 -08:00
Ken Thompson
cd00bc78da bug in 6g optimizer 
8g still needs fixing

R=rsc
https://golang.org/cl/176057
 2009-12-11 15:55:09 -08:00
Christopher Wedgwood
7e7008fa5e gc: Allow allow data types up to 1GB 
R=rsc
https://golang.org/cl/164095
 2009-12-03 12:46:34 -08:00
Russ Cox
41861a8812 gc: better diagnosis of initialization loops 
Fixes bug 292.

R=ken2
https://golang.org/cl/164093
 2009-12-03 00:51:03 -08:00
Russ Cox
d116a32727 gc: reject large channel values at compile time 
Fixes #144.

R=ken2
CC=agl1
https://golang.org/cl/156102
 2009-11-19 18:20:06 -08:00
Ken Thompson
c4606d05da install copy predefined 
did not test 386, but should work
shouldnt matter if copy is not used

R=rsc
https://golang.org/cl/156055
 2009-11-17 20:41:44 -08:00
Russ Cox
a338231526 gc: five bug fixes, one better error. 
* check for struct literal assignment to private fields.
* record, fix crash involving parallel map assignment.
* avoid infinite recursion in exportassignok.
* make floating point bounds check precise.
* avoid crash on invalid receiver.

* add context to error about implicit assignment.

Fixes #86.
Fixes #88.
Fixes #158.
Fixes #174.
Fixes #201.
Fixes #204.

R=ken2
https://golang.org/cl/154144
 2009-11-15 12:57:09 -08:00
Russ Cox
593ccd1d44 yet another attempt to avoid conflicts with 
<stdio.h>, which we weren't even #including

R=r
https://golang.org/cl/154108
 2009-11-12 23:38:48 -08:00
Russ Cox
c3343ef62c fix BUFSIZ redeclaration warnings 
R=r
https://golang.org/cl/152085
 2009-11-11 16:33:23 -08:00
Russ Cox
e9ac56fb99 getc/ungetc in assemblers; BUFSIZ everywhere. 
Fixes #67.

R=r
https://golang.org/cl/154068
 2009-11-11 14:52:08 -08:00
Russ Cox
8c3d2f015b avoid clash with stdio's getc, ungetc. 
Fixes #50.

R=r
https://golang.org/cl/154064
 2009-11-11 13:08:35 -08:00
Ken Thompson
0eb2a79ff3 8g optimizer 
R=rsc
http://go/go-review/1025011
 2009-11-06 16:51:49 -08:00
Russ Cox
a15648658f bug196 
R=ken
OCL=35905
CL=35905
 2009-10-19 21:10:29 -07:00
Russ Cox
62c4818ee0 bug136 
R=ken
OCL=35902
CL=35904
 2009-10-19 20:39:18 -07:00
Russ Cox
8fffa1d698 bug190. 
also eliminate float80 dregs

R=ken
OCL=35894
CL=35896
 2009-10-19 18:47:37 -07:00
Russ Cox
22a5c78f44 rename sys functions to runtime, 
because they are in package runtime.

another step to enforcing package boundaries.

R=r
DELTA=732  (114 added, 93 deleted, 525 changed)
OCL=35811
CL=35824
 2009-10-15 23:10:49 -07:00
Russ Cox
a75e347a21 do not migrate x to the heap because of *&x. 
R=ken
OCL=35799
CL=35799
 2009-10-15 16:03:01 -07:00
Russ Cox
2372408189 sort errors by line number 
turn off testdclstack and "not used" errors
when there are syntax errors.

BUG=2181825
R=ken
OCL=35606
CL=35608
 2009-10-12 11:03:48 -07:00
Russ Cox
680ee6af63 add & fix bug208, from ken. 
fix bug198.

R=ken
OCL=35504
CL=35507
 2009-10-08 23:03:34 -07:00
Russ Cox
d515063588 better handling of mistaken top-level variable 
references during the parsing of :=.  the base
problem is that when reading

	a,b,c,d

the parser makes those refer to existing variables,
which might create a few stub top-level ones
for undefined names, but then if a := is the next
token, we need to undo those stubs.

this was causing problems in multifile packages
in which one file used a := variable named rpc
and the other imported a package named rpc.

R=ken
OCL=35446
CL=35446
 2009-10-07 14:55:12 -07:00
Russ Cox
a95ee61aea ideal bools and related fixes 
R=ken
OCL=34859
CL=34865
 2009-09-21 15:45:55 -07:00
Russ Cox
cb49a999d1 move static init code from 6g into gc. 
hook up to 8g and 5g too.

R=ken
OCL=34768
CL=34768
 2009-09-17 19:15:54 -07:00
Russ Cox
73e52ae971 check for unused imports 
R=ken
OCL=34732
CL=34756
 2009-09-17 16:42:10 -07:00
Russ Cox
59914723df declared and not used error, but disabled. 
fix some bugs involving _.

R=ken
OCL=34621
CL=34621
 2009-09-14 18:38:30 -07:00
Ken Thompson
0631d65dc5 composit literal under 
init function context.
also moved composit literal
code from walk.c to sinit.c

R=rsc
OCL=34503
CL=34503
 2009-09-09 17:48:55 -07:00
Russ Cox
e780fa8669 defining package block names must override 
universe block names.

BUG=2097244
R=ken
OCL=34295
CL=34473
 2009-09-09 01:01:39 -07:00
Russ Cox
5d16d23362 update type switch to match spec. 
R=ken
OCL=34471
CL=34471
 2009-09-09 00:18:16 -07:00
Russ Cox
5438be4541 write-only variable _ 
R=ken
OCL=34465
CL=34470
 2009-09-08 23:16:19 -07:00
Ken Thompson
32aa5be6ef init context for composit literals 
R=rsc
OCL=34462
CL=34462
 2009-09-08 15:52:27 -07:00
Ken Thompson
18f2e360a0 composit literals 
plateau - more to come

R=rsc
OCL=34413
CL=34413
 2009-09-05 20:32:24 -07:00
Russ Cox
107d404378 stop using filename for disambiguation within a package. 
R=ken
OCL=34339
CL=34341
 2009-09-03 15:23:21 -07:00
Russ Cox
ee2d5128d6 the last bug involving type hashes 
R=ken
OCL=34244
CL=34249
 2009-09-02 09:09:32 -07:00
Russ Cox
3443656bce clean up ideal handling; reject attempts 
to write type descriptors for ideal types

R=ken
OCL=33958
CL=33958
 2009-08-27 11:16:34 -07:00
Russ Cox
14be733a25 bug197 
R=ken
OCL=33765
CL=33765
 2009-08-24 13:41:47 -07:00
Russ Cox
7b29dbb866 symbol bugs. 
do not emit unreachable data symbols.

R=austin
DELTA=103  (71 added, 4 deleted, 28 changed)
OCL=33325
CL=33622
 2009-08-20 17:33:28 -07:00
Russ Cox
5600435fe4 produce diagnostic for 
import "fmt"
var fmt = 1

R=ken
OCL=33556
CL=33561
 2009-08-19 17:27:08 -07:00
Russ Cox
38df5ec58d try to do better line number reporting 
in the presence of yacc lookahead.
better but still not perfect

R=ken
OCL=33541
CL=33541
 2009-08-19 15:18:08 -07:00
Russ Cox
63aeaa2a03 fix import dot bug 
R=ken
OCL=33526
CL=33528
 2009-08-19 11:32:46 -07:00
Russ Cox
a92610208e delete code for forward type declarations 
R=ken
OCL=33108
CL=33113
 2009-08-12 14:41:13 -07:00
Russ Cox
66bb399fdd whole-package compilation 
R=ken
OCL=33063
CL=33095
 2009-08-12 13:18:19 -07:00
Russ Cox
866b272336 bug186 - f(iota) 
R=ken
OCL=33051
CL=33051
 2009-08-11 17:05:22 -07:00
Ken Thompson
34f76b5de5 1. integer division by a constant done. 
2. moved functions from 6g to gc
for portability to other families.
3. added rotate-carry instructions to
peek and reg.

R=rsc
OCL=32946
CL=32946
 2009-08-09 15:16:06 -07:00
Ken Thompson
07044ba6e5 plateau in divide by a constant 
still to do - overflow, mod

R=rsc
OCL=32927
CL=32927
 2009-08-08 15:26:09 -07:00
Russ Cox
6c2738eb43 bug181 - type T *struct { T } is an invalid embedded type 
R=ken
OCL=32886
CL=32886
 2009-08-07 13:14:01 -07:00
Russ Cox
b648716ee9 forward declarations not necessary. 
still to do:
	* initializer cycle detection
	* nicer error for type checking cycles

R=ken
OCL=32855
CL=32880
 2009-08-07 12:50:26 -07:00
Russ Cox
2609731736 delay range processing. old2new is gone 
R=ken
OCL=32780
CL=32780
 2009-08-05 02:33:30 -07:00
Russ Cox
54b403723b delay := processing 
R=ken
OCL=32772
CL=32772
 2009-08-05 00:42:44 -07:00
Russ Cox
a121410541 make Syms smaller. 
collapse a lot of duplication in dcl.c
switch to NodeList* from Dcl*

R=ken
OCL=32770
CL=32770
 2009-08-04 22:59:23 -07:00
Russ Cox
aa347c4a0d move various bits of code around 
and delete some dead code.
no actual changes here.

R=ken
OCL=32764
CL=32764
 2009-08-04 18:43:32 -07:00
Russ Cox
dbe004efe4 delayed evaluation of var blocks 
R=ken
OCL=32750
CL=32753
 2009-08-04 16:53:06 -07:00
Russ Cox
f7a867e1a6 move select into its own file. 
split into typecheck + walk

R=ken
OCL=32726
CL=32726
 2009-08-04 12:57:48 -07:00
Russ Cox
d8c19c80dc type checking of assignments, switch, if, for 
R=ken
OCL=32716
CL=32720
 2009-08-04 10:26:29 -07:00
Russ Cox
9dc22b6d6f more 6g reorg; checkpoint. 
typecheck.c is now responsible for all type checking
except for assignment and function argument "..."

R=ken
OCL=32661
CL=32667
 2009-08-03 11:58:52 -07:00