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Commit Graph

310 Commits

Author SHA1 Message Date
Russ Cox
e7a0f67603 gc: introduce explicit alignments
No semantic changes here, but working
toward being able to align structs based
on the maximum alignment of the fields
inside instead of having a fixed alignment
for all structs (issue 482).

R=ken2
CC=golang-dev
https://golang.org/cl/3617041
2010-12-13 11:57:41 -05:00
Russ Cox
e48c0fb562 5g, 6g, 8g: generate code for string index
instead of calling function.

R=ken2
CC=golang-dev
https://golang.org/cl/2762041
2010-10-26 21:11:17 -07:00
Russ Cox
c00f9f49bb 6g: avoid too-large immediate constants
R=ken2
CC=golang-dev
https://golang.org/cl/2566042
2010-10-20 00:40:06 -04:00
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
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
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
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
Ken Thompson
96cbdd62b6 better job on 2007043
better registerization

R=rsc
CC=golang-dev
https://golang.org/cl/1955049
2010-08-23 12:38:15 -07:00
Ken Thompson
3dc3ef4cf7 attempt to gete better registeration
from the builtin structures (strings,
slices, interfaces)

R=rsc
CC=golang-dev
https://golang.org/cl/2007043
2010-08-19 18:18:51 -07:00
Ken Thompson
5b0c317c9c code optimization on slices
R=rsc
CC=golang-dev
https://golang.org/cl/1942043
2010-08-13 19:39:36 -07:00
Russ Cox
1d77ff5b6b 6g, 8g: handle slice by sub-word-sized index (uint8, int8, uint16, int16)
R=ken2
CC=golang-dev
https://golang.org/cl/1960042
2010-08-11 22:27:47 -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
f930d28164 5g: fix build
R=ken2
CC=golang-dev
https://golang.org/cl/1893042
2010-07-27 13:43:58 -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
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
b2a919fc29 gc: issue 894
Fixes #894.

R=ken2
CC=golang-dev
https://golang.org/cl/1701051
2010-07-15 15:25:32 -07:00
Ken Thompson
1246ad8390 code gen bug in len(nil) and cap(nil)
fixes #892

R=rsc
CC=golang-dev
https://golang.org/cl/1745042
2010-06-29 12:48:24 -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
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
9fc9246bf3 gc: bug281 - bad overlap in stack copy
Fixes #807.

R=ken2
CC=golang-dev
https://golang.org/cl/1283041
2010-05-24 16:54:24 -07:00
Russ Cox
d14baee96e 6g: avoid unnecessary conversion in shift bounds check
R=ken2
CC=golang-dev
https://golang.org/cl/1278042
2010-05-24 15:30:53 -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
f75d0d224f runtime: turn run time errors checks into panics
R=ken2, r
CC=golang-dev
https://golang.org/cl/871042
2010-04-01 22:31:27 -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
97d0e8fe6c gc: allow taking address of out parameters
Fixes #186.

R=ken2
CC=golang-dev
https://golang.org/cl/793041
2010-03-26 18:01:02 -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
f229c8b546 identical complex implementation
for 6g and 8g. can also be used
for 5g. 5g is still a stub.

R=rsc
CC=golang-dev
https://golang.org/cl/362041
2010-03-09 12:49:24 -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
ac499ed7a5 gc: better compilation of floating point +=
R=ken2
CC=golang-dev
https://golang.org/cl/255042
2010-03-05 15:35:09 -08:00
Ken Thompson
7d4b1e4c0d more on type complex.
getting close.

R=rsc
CC=golang-dev
https://golang.org/cl/224105
2010-03-02 18:32:11 -08:00
Ken Thompson
458b53ea7d all done except -
complex divide
float(complex) conversion
8g 5g etc
tests

R=rsc
CC=golang-dev
https://golang.org/cl/218044
2010-02-21 17:51:39 -08:00
Ken Thompson
f59cb49a5a fixed bug in mpconst float multiply by 0.
more complex -- constants, variables and print.

R=rsc
CC=golang-dev
https://golang.org/cl/217061
2010-02-19 20:42:50 -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
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
Ken Thompson
424f9ca6ab change print print buffer size
to go with the full path names

R=rsc
CC=golang-dev
https://golang.org/cl/195079
2010-01-27 15:37:46 -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
Ken Thompson
cd47c903e2 part 2 of sudoaddable optimization
R=rsc
CC=golang-dev
https://golang.org/cl/190088
2010-01-20 13:07:14 -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
Ken Thompson
dfc0ed9559 start of better addressing of
arrays/slices in structures

R=rsc
CC=golang-dev
https://golang.org/cl/190077
2010-01-19 19:59:57 -08:00
Ian Lance Taylor
c332ff42fe Don't check array bounds if we have been told not to.
Fixes range.go test for 6g.

R=rsc
CC=golang-dev
https://golang.org/cl/189093
2010-01-15 13:51:57 -08:00
Ken Thompson
bedfc2c2f1 more on the optimizer
trying to get alizses
to optimize

R=rsc
https://golang.org/cl/176061
2009-12-12 14:36:52 -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
Charles L. Dorian
3ca1b1d27f Continuation of issue 221 fix. When 8g or 6g or 5g are called with a
UTF-8 string, Yconv() converts it into an octal sequence. If the
string converted to more than 30 bytes, the str buffer would
overflow. For example, 4 Greek runes became 32 bytes, 3 Hiragana
runes became 36 bytes, and 2 Gothic runes became 32 bytes. In
8l, 6l and 5l the function is Sconv(). For some reason, only 5l uses
the constant STRINGSZ (defined as 200) for the buffer size.

R=rsc
https://golang.org/cl/168045
2009-12-09 11:56:45 -08:00
Russ Cox
7c4aeec868 6g/8g optimizer fix: throw functions now in runtime
R=ken2
https://golang.org/cl/166070
2009-12-04 20:37:32 -08:00
Ken Thompson
62be24d949 6g code gen bug
R=rsc
https://golang.org/cl/166052
2009-12-03 20:28:24 -08:00
Russ Cox
fdb030d86f 6g etc: groundwork for eliminating redundant bounds checks.
drop check in range over array.
	drop check in [256]array indexed by byte.

R=ken2
https://golang.org/cl/163088
2009-12-02 17:30:07 -08:00
Sergio Luis O. B. Correia
6fc820729e go: makes it build for the case $GOROOT has whitespaces
the bash scripts and makefiles for building go didn't take into account
the fact $GOROOT / $GOBIN could both be directories containing whitespaces,
and was not possible to build it in such a situation.

this commit adjusts the various makefiles/scripts to make it aware of that
possibility, and now it builds successfully when using a path with whitespaces
as well.

Fixes #115.

R=rsc, dsymonds1
https://golang.org/cl/157067
2009-11-23 17:32:51 -08:00
Russ Cox
652f55672d x[lo:] - gc and runtime.
* add runtime sliceslice1 for x[lo:]
  * remove runtime arraytoslice, rewriting &arr into arr[0:len(arr)].
  * port cgen_inline into 8g, 5g.
  * use native memmove in maps

R=ken2
https://golang.org/cl/157106
2009-11-20 09:11:46 -08:00