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Commit Graph

259 Commits

Author SHA1 Message Date
Russ Cox
d9c989fa25 various: avoid %ld etc
The Plan 9 tools assume that long is 32 bits.
We converted all instances of long to int32 when
importing the code but missed the print formats.
Because int32 is always int on the compilers we use,
it is never correct to use %lux, %ld, etc.  Convert to %ux, %d, etc.

(It matters because on 64-bit gcc, long is 64 bits,
so we were printing 32-bit quantities with 64-bit formats.)

R=ken2
CC=golang-dev
https://golang.org/cl/2491041
2010-10-13 16:20:22 -04:00
Russ Cox
30dd191171 gc: O(1) string comparison when lengths differ
R=ken2
CC=golang-dev
https://golang.org/cl/2331045
2010-10-06 09:53:12 -04:00
Russ Cox
779dfea487 gc: correct buffer size in sprint, add -L to show full paths
R=ken2
CC=golang-dev
https://golang.org/cl/2338041
2010-09-30 15:02:43 -04:00
Russ Cox
2d5e732c54 gc: eliminate duplicates in method table
Fixes #906.

R=ken2
CC=golang-dev
https://golang.org/cl/2279042
2010-09-27 14:09:10 -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
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
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
c3900387db gc: bug306
Fixes #1040.

R=ken2
CC=golang-dev
https://golang.org/cl/2132047
2010-09-13 15:42:14 -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
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
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
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
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
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
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
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
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
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
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
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
9475cafa73 gc: distinguish fatal compiler bug from error+exit
R=ken2
CC=golang-dev
https://golang.org/cl/902044
2010-04-11 14:52:06 -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
Ken Thompson
623dfd1b07 depricate panicln
R=rsc
CC=golang-dev
https://golang.org/cl/743041
2010-03-24 16:53:54 -07:00
Ken Thompson
2edb02b41e 1. decommit complex(float) conversion
2. add complex algorithm for map/chan
3. test for use of complex in
   array, slice, field, chan, map,
   field, pointer.

R=rsc
CC=golang-dev
https://golang.org/cl/384041
2010-03-09 17:51:30 -08:00
Russ Cox
529369e452 gc: remove duplicate errors, give better error for I.(T)
R=ken2
CC=golang-dev
https://golang.org/cl/370041
2010-03-09 15:09:37 -08:00
Russ Cox
4f89dcdf99 5g/6g/8g: fix double function call in slice
Fixes #654.

R=ken2
CC=golang-dev
https://golang.org/cl/310041
2010-03-08 14:19:28 -08:00
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
f1550482fa gc: fix imported and not used message - show path
R=ken2
CC=golang-dev
https://golang.org/cl/229046
2010-03-03 17:23:47 -08:00
Russ Cox
80a14df122 gc: double-initialization
R=ken2
CC=golang-dev
https://golang.org/cl/217044
2010-02-18 23:33:57 -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
401062f720 gc: fix build (signed char bug)
R=ken2
CC=golang-dev
https://golang.org/cl/210043
2010-02-16 17:30:33 -08:00
Russ Cox
cfff862862 gc: disallow NUL byte, catch more invalid UTF-8, test
R=ken2, ken3
CC=golang-dev
https://golang.org/cl/209041
2010-02-16 16:47:39 -08:00
Russ Cox
e7fc5c2789 gc: test & fix handling of very long string constants
R=ken2
CC=golang-dev
https://golang.org/cl/207106
2010-02-16 10:16:24 -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
bea730d1f9 gc: ... T corner cases
more to come, but should suffice for Printf work.

R=ken2
CC=golang-dev
https://golang.org/cl/197044
2010-02-01 10:49:24 -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
2a01d72878 gc: improved syntax errors
* example-based syntax errors (go.errors)

* enable bison's more specific errors
  and translate grammar token names into
  tokens like ++

* test cases

R=ken2, r, ken3
CC=golang-dev
https://golang.org/cl/194085
2010-01-26 23:13:22 -08:00
Russ Cox
7abb4b3a96 gc: fix chan <- chan precedence.
also allow func() func().

R=ken2
CC=golang-dev
https://golang.org/cl/194078
2010-01-26 10:40:28 -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
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
5a5799f613 gc: more precise handling of import .
Fixes #455.

R=ken2
CC=golang-dev
https://golang.org/cl/186212
2010-01-18 16:26:40 -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
5d754bfaea gc: bug fixes.
* better error for lookup of unexported field
  * do not assign "ideal string" type to typed string literal
  * do not confuse methods and fields during interface check

Fixes #410.
Fixes #411.
Fixes #426.

R=ken2
https://golang.org/cl/179069
2009-12-15 16:22:04 -08:00