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949 Commits

Author SHA1 Message Date
Russ Cox
b1f44a120f gc: improve error message for x \= 0 
was
x.go:2: syntax error: unexpected $undefined

now
x.go:2: syntax error: unexpected \

R=ken2
CC=golang-dev
https://golang.org/cl/2267044
 2010-09-24 17:09:31 -04:00
Russ Cox
1d315a8abd gc: printing of ... 
R=ken2
CC=golang-dev
https://golang.org/cl/2218043
 2010-09-24 12:29:20 -04:00
Russ Cox
75dd8fdb34 gc: ... changes 
R=ken2, ken3
CC=golang-dev
https://golang.org/cl/2208047
 2010-09-24 11:55:30 -04:00
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
Russ Cox
d19fcd0784 gc: spell debug['u'] correctly 
R=ken2
CC=golang-dev
https://golang.org/cl/2214042
 2010-09-16 15:50:46 -04:00
Russ Cox
555f5b6b24 gc: make sure path names are canonical 
R=ken2
CC=golang-dev
https://golang.org/cl/2209042
 2010-09-16 15:37:57 -04:00
Ken Thompson
abb73a4a86 fix line number printing 
with //line directives.

R=rsc
CC=golang-dev
https://golang.org/cl/2224041
 2010-09-15 14:32:09 -07:00
Russ Cox
23bd214aee gc: implement new comparison rule 
The new comparison rule was added to the spec by

	changeset:   5605:33abb649cb63
	user:        Robert Griesemer <gri@golang.org>
	date:        Thu Jun 03 16:55:50 2010 -0700
	files:       doc/go_spec.html
	description:
	go spec: Base comparison compatibility on assignment compatibility.

	Specifically:
	- Simplified definition of comparison compatibility and folded into
	  section on comparison operators since it's only used there.

	This is a small language change/cleanup. As a consequence:
	- An interface value may now be compared against a non-interface value.
	- Channels with opposite directions cannot be compared directly anymore
	  (per discussion with rsc).

	R=rsc, r, iant, ken2
	CC=golang-dev
	https://golang.org/cl/1462041

but never implemented.

Fixes #1070.

R=ken2
CC=golang-dev
https://golang.org/cl/2116047
 2010-09-13 15:42:47 -04:00
Russ Cox
c3900387db gc: bug306 
Fixes #1040.

R=ken2
CC=golang-dev
https://golang.org/cl/2132047
 2010-09-13 15:42:14 -04:00
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
f47d403cb4 gc: make string x + y + z + ... + w efficient 
1 malloc per concatenation.

R=ken2
CC=golang-dev
https://golang.org/cl/2124045
 2010-09-12 00:53:04 -04:00
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
be443ee8bc 5g: register allocation bugs 
Fixes #1099.

R=ken2, r
CC=golang-dev
https://golang.org/cl/2147047
 2010-09-12 00:06:45 -04:00
Russ Cox
0acb63769c gc: const nil bug 
Fixes #1073.

R=ken2
CC=golang-dev
https://golang.org/cl/2169043
 2010-09-11 15:47:56 -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
Russ Cox
1678dcc378 gc: more accurate line numbers for ATEXT 
and other begin and end of function code

R=ken2
CC=golang-dev
https://golang.org/cl/2158044
 2010-09-09 17:11:51 -04:00
Scott Lawrence
fce222a95b gc: implement new slice spec 
Fixes #382.

R=gri, cw, r, rsc
CC=golang-dev
https://golang.org/cl/1957045
 2010-09-08 22:20:29 -04:00
Russ Cox
5baaa490d6 gc: better printing of named constants, func literals 
R=ken2
CC=golang-dev
https://golang.org/cl/2121045
 2010-09-08 10:12:56 -04:00
Russ Cox
1cb951d994 gc: appease bison version running on FreeBSD builder 
R=ken2
CC=golang-dev
https://golang.org/cl/2141042
 2010-09-02 14:31:39 -04:00
Russ Cox
dea283750b gc: fix spurious syntax error 
Fixes #1071.

R=ken2
CC=golang-dev
https://golang.org/cl/2136043
 2010-09-02 14:16:01 -04:00
Christian Himpel
5c603dbb75 build: remove unnecessary references to GOBIN and GOROOT 
All scripts and makefiles assume that GOBIN is correctly set
in PATH.

R=rsc
CC=golang-dev
https://golang.org/cl/2043041
 2010-08-30 15:40:56 -04:00
Kyle Consalus
e24910d09b gc: brace nit from last review 
R=rsc
CC=golang-dev
https://golang.org/cl/1997045
 2010-08-26 18:46:56 -04:00
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
aafe474ec9 build: $GOBIN defaults to $GOROOT/bin 
R=r
CC=golang-dev
https://golang.org/cl/1982049
 2010-08-24 20:00:33 -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
da392d9136 build: no required environment variables 
R=adg, r, PeterGo
CC=golang-dev
https://golang.org/cl/1942044
 2010-08-18 10:08:49 -04:00
Russ Cox
a9a62eef6b gc: bug302 
Fixed by http://code.google.com/p/go/source/detail?r=d1f41e20a90e
This just adds a test and checks the return value of Bprint.

R=ken2
CC=golang-dev
https://golang.org/cl/1949042
 2010-08-10 17:39:38 -07:00
Russ Cox
3f19d8ae8d gc: empty select 
R=ken2
CC=golang-dev
https://golang.org/cl/1871057
 2010-08-03 01:07:57 -07:00
Russ Cox
585eae3bce gc: bug301 
Fixes #990.

R=ken2
CC=golang-dev
https://golang.org/cl/1742055
 2010-08-03 01:07:40 -07:00
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
9bac9d23d3 gc: index bounds tests and fixes 
move constant index checking to front end
x[2:1] is a compile-time error now too

R=ken2
CC=golang-dev
https://golang.org/cl/1848056
 2010-08-03 00:26:02 -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
f20c2e1cf5 gc: more crash avoidance 
Fixes #961.
Fixes #962.

R=ken2
CC=golang-dev
https://golang.org/cl/1903043
 2010-07-26 17:34:17 -07:00
Russ Cox
b49561d884 gc: graceful exit on seg fault 
R=ken2
CC=golang-dev
https://golang.org/cl/1882043
 2010-07-26 16:52:51 -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
7b240e8135 gc: import dot shadowing bug 
R=ken2
CC=golang-dev
https://golang.org/cl/1873047
 2010-07-26 14:21:39 -07:00
Russ Cox
fa3d86ca39 libmach: correct handling of .5 files with D_REGREG addresses 
undo workaround in gc

Fixes #943.

R=kaib
CC=golang-dev
https://golang.org/cl/1889041
 2010-07-22 09:00:34 -07:00
Kai Backman
47b6400556 arm: fix build by disabling list copying optimization for 5g. 
R=rsc
CC=golang-dev
https://golang.org/cl/1697053
 2010-07-21 14:14:21 +03:00
Russ Cox
0decedf636 gc: various bug fixes 
Fixes #935.
Fixes #936.
Fixes #941.

R=ken2
CC=golang-dev
https://golang.org/cl/1867042
 2010-07-20 23:45:33 -07:00
Ken Thompson
f6b93ab432 change floating literal normalization 
from word-oriented to bit-oriented.
this will increase fp literal precision
by up to a full word.

R=rsc
CC=golang-dev
https://golang.org/cl/1859044
 2010-07-19 16:10:46 -07:00
Ken Thompson
95b93c28e3 1. got 29 (Mpscale) more bits of precision 
out of floating constant multiply
2. added rounding code to "const fix=float"
to allow up to 29 (Mpscale) bits of
slop and still get an exact fixed constant.

fixes #931

R=rsc
CC=golang-dev
https://golang.org/cl/1692055
 2010-07-17 16:32:40 -07:00
Russ Cox
b693847ea8 gc: print error detail about failure to open import 
R=ken2
CC=golang-dev
https://golang.org/cl/1872041
 2010-07-16 21:38:51 -07:00
Rob Pike
8519134b98 fix typo in lex.c comment 
R=rsc
CC=golang-dev
https://golang.org/cl/1862044
 2010-07-16 15:08:31 -07:00
Ken Thompson
19d7fc4026 change line pragma from 
//line number file
to
	//line file:number

R=rsc
CC=golang-dev
https://golang.org/cl/1868041
 2010-07-16 13:34:36 -07:00
Ken Thompson
444066e56d interpret lines that look like 
//line 10 units.y
which is equiv to c
	#line 10 units.y
the purpose is to generate diagnostics
that correctly point to preprocessed source.

R=rsc
CC=golang-dev
https://golang.org/cl/1863042
 2010-07-15 20:21:33 -07:00
Russ Cox
4c0de303ce gc: bug294 
Fixes #800.

R=ken2
CC=golang-dev
https://golang.org/cl/1855043
 2010-07-15 16:42:32 -07:00
Russ Cox
ece6a8c549 gc: bug293 
Fixes #846.

R=ken2
CC=golang-dev
https://golang.org/cl/1862042
 2010-07-15 16:14:06 -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
31c07dfddf gc: issue 901 
Fixes #901.

R=ken2
CC=golang-dev
https://golang.org/cl/1674049
 2010-07-15 15:22:51 -07:00
Russ Cox
08a263a991 gc: bug291 
Fixes #915.

R=ken2
CC=golang-dev
https://golang.org/cl/1856042
 2010-07-15 15:17:42 -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
Russ Cox
17f90c68c6 gc: fix handling of types inside function bodies 
Fixes #849.
Fixes #920.

R=ken2
CC=golang-dev
https://golang.org/cl/1841042
 2010-07-15 14:25:50 -07:00
Rob Pike
c9f83372d8 add missing argument to usage message. 
Fixes #912.

R=rsc
CC=golang-dev
https://golang.org/cl/1819041
 2010-07-12 16:31:51 -07:00
Russ Cox
81c3e8cabc gc: implement new len spec, range bug fix, optimization 
Fixes #885.

R=ken2
CC=golang-dev
https://golang.org/cl/1680048
 2010-07-01 18:04:25 -07:00
Russ Cox
ed39c764b8 gc: do not crash on bad [...]T 
Fixes #879.

R=ken2
CC=golang-dev
https://golang.org/cl/1678048
 2010-06-30 20:34:31 -07:00
Ken Thompson
2795282b50 compiler fatal error in switch. 
fixes #867.

R=rsc
CC=golang-dev
https://golang.org/cl/1691045
 2010-06-28 16:30:55 -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
6d8b8101ea gc: fix crash for nested complex division 
R=ken2
CC=golang-dev
https://golang.org/cl/1720043
 2010-06-23 10:55:50 -04:00
Russ Cox
2fc0b4f01b gc: include struct field tags in type equality 
R=ken2
CC=golang-dev
https://golang.org/cl/1667048
 2010-06-21 13:06:39 -07:00
Russ Cox
45bdf0367e reflect: add Kind, remove Int8Type, Int8Value, etc. 
update other code to match.

R=r
CC=golang-dev
https://golang.org/cl/1680044
 2010-06-20 12:16:25 -07:00
Russ Cox
9f002f6892 gc: delete debug print 
R=ken2
CC=golang-dev
https://golang.org/cl/1732043
 2010-06-20 12:15:10 -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
ceb868bf0a gc: fix build - subnode not addable in complexgen 
R=ken2
CC=golang-dev
https://golang.org/cl/1677047
 2010-06-20 11:21:43 -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
Robert Griesemer
98b27814ae gc: better error message when ~ operator is found 
Fixes #844.

R=ken2, rsc, ken3
CC=golang-dev
https://golang.org/cl/1593041
 2010-06-07 18:27:26 -07:00
Robert Griesemer
0c222d6e49 gc: backslash newline is not a legal escape sequence in strings 
Fixes #827.

R=ken2
CC=golang-dev, rsc
https://golang.org/cl/1592041
 2010-06-07 18:10:48 -07:00
Russ Cox
cd016d7558 gc: fix export of complex types 
R=ken2
CC=golang-dev
https://golang.org/cl/1442042
 2010-06-01 14:48:57 -07:00
Russ Cox
ea941f09bf gc: more accurate error description 
R=ken2
CC=golang-dev
https://golang.org/cl/1284041
 2010-05-24 17:07:51 -07:00
Russ Cox
8c2bc4419b gc: fix shift/reduce conflict in go.y export syntax 
Fixes #771.

R=ken2
CC=golang-dev
https://golang.org/cl/1267042
 2010-05-24 16:55:23 -07:00
Russ Cox
2e9b67afa6 gc: bug277 - new conversion syntax 
R=ken2
CC=golang-dev
https://golang.org/cl/1220046
 2010-05-24 15:25:30 -07:00
Russ Cox
43c0a46ac6 gc: bug280 
Fixes #808.

R=ken2
CC=golang-dev
https://golang.org/cl/1273042
 2010-05-24 15:25:09 -07:00
Russ Cox
5e253645d2 gc: bug278 
Fixes #804.

R=ken2
CC=golang-dev
https://golang.org/cl/1224045
 2010-05-24 14:22:54 -07:00
Russ Cox
80ac15ec12 gc: fix unsafe.Sizeof on ideal constants 
R=ken2
CC=golang-dev
https://golang.org/cl/1280041
 2010-05-24 14:18:15 -07:00
Russ Cox
709c5b2481 gc: handle use of builtin function outside function call 
tweaks & tests of last bug fix too.

R=ken2
CC=golang-dev
https://golang.org/cl/1207044
 2010-05-20 22:57:08 -07:00
Russ Cox
b03d7f4d8f gc: line number bug fix 
R=ken2
CC=golang-dev
https://golang.org/cl/1243044
 2010-05-20 22:19:50 -07:00
Ken Thompson
09b2de77b5 fix bug 275 
R=rsc
CC=golang-dev
https://golang.org/cl/1198046
 2010-05-20 20:56:28 -07:00
Russ Cox
9e497c3656 gc: disallow · in Go programs 
Fixes #793.

R=ken2
CC=golang-dev
https://golang.org/cl/1249043
 2010-05-20 17:34:22 -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
Evan Shaw
d2aa74118c gc: Better error when computing remainder of non-int 
Previously the compiler would just emit "internal compiler error" when
trying to compute the remainder of floats or complex types.

R=rsc
CC=golang-dev
https://golang.org/cl/1243041
 2010-05-18 22:41:12 -07:00
Russ Cox
6dbba67214 gc: distinguish array, slice literal in error messages 
R=ken2
CC=golang-dev
https://golang.org/cl/1138041
 2010-05-06 09:34:12 -07:00
Ken Thompson
a3a0a5fdc3 allow data statements for simple 
external variable assignements.

R=rsc
CC=golang-dev
https://golang.org/cl/1094041
 2010-05-03 22:51:30 -07:00
Russ Cox
32df678894 gc: bug264 
Fixes #692.

R=ken2
CC=golang-dev
https://golang.org/cl/1092041
 2010-05-03 17:51:48 -07:00
Russ Cox
b5f54db359 gc: bug267 
R=ken2
CC=golang-dev
https://golang.org/cl/1067042
 2010-05-03 15:29:59 -07:00
Russ Cox
371b77ad20 gc: error for nested functions, one semicolon problem 
R=ken2
CC=golang-dev
https://golang.org/cl/1046042
 2010-05-03 15:02:32 -07:00
Russ Cox
6361f52fc4 gc: be pickier about slice, chan, array, and map sizes 
Fixes #589.

R=ken2
CC=golang-dev
https://golang.org/cl/1032044
 2010-05-01 13:15:42 -07:00
Russ Cox
253fd30e66 gc: bug271 
Fixes #662.

R=ken2
CC=golang-dev
https://golang.org/cl/978043
 2010-04-30 13:27:08 -07:00
Russ Cox
560283c880 gc: bug270 
Fixes #746.

R=ken2
CC=golang-dev
https://golang.org/cl/1040042
 2010-04-30 13:04:16 -07:00
Russ Cox
77817e08d5 gc: never include ( ) on singleton func return type 
Fixes #749.

R=ken2
CC=golang-dev
https://golang.org/cl/963043
 2010-04-29 16:07:14 -07:00
Russ Cox
10eb76b04e gc: bug268 
Fixes #745.

R=ken2
CC=golang-dev
https://golang.org/cl/1008045
 2010-04-29 15:52:27 -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
d6e4e18c8c gc: more specific error for statements at top level 
R=ken2, r, ken3
CC=golang-dev
https://golang.org/cl/1006041
 2010-04-26 22:35:27 -07:00