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Commit Graph

656 Commits

Author SHA1 Message Date
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
Russ Cox
9cba9c8890 6l: eliminate dead code, not just the symbols
editing the firstp list was ineffective,
because follow rebuilds it from the textp list.

the symbols for dead code were being dropped
from the binary but the code was all still there.

text for fmt.Printf("hello, world\n") drops
from 143945 to 128650.

R=r,ken
DELTA=22  (20 added, 0 deleted, 2 changed)
OCL=28255
CL=28290
2009-05-05 12:43:00 -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
5963f59067 more morestack fiddling
R=r
OCL=28204
CL=28204
2009-05-03 19:09:14 -07:00
Ken Thompson
a5a878986c more code fiddling
R=r
OCL=28201
CL=28201
2009-05-03 15:17:03 -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
Ken Thompson
1ed7f18165 code improvement
better calling of morestack

R=r
OCL=28179
CL=28179
2009-05-01 18:07:33 -07:00
Kai Backman
eac5db7f4c Copied 8g/6g into 5g. Used sharp tools to coax a .5 file out
of 5g. 5l balks at the output and running 5g with -S shows
the true extent of the disaster. Still, better than
yesterday. Maybe.

Tested on the canonical:

package main
func main() {
}

R=rsc
APPROVED=rsc
DELTA=4182  (4181 added, 0 deleted, 1 changed)
OCL=27601
CL=28175
2009-05-01 13:21:53 -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
Russ Cox
48974f553d change 6l library directory flag to -L,
to match traditional c linkers.

R=r
DELTA=42  (8 added, 12 deleted, 22 changed)
OCL=28101
CL=28115
2009-04-30 13:32:39 -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
91ce0ef8f3 bug 139
R=r
OCL=27987
CL=27987
2009-04-28 13:52:56 -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
Ben Eitzen
155ec1d904 Clear upper bits of 64-bit indexing register when using types smaller than 64 bits.
APPROVED=ken
OCL=27811
CL=27823
2009-04-23 18:23:34 -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
c18db5aa18 bug in shift of longer operand
by a shorter operand. the bits
in the difference were not cheared.

R=r
OCL=27705
CL=27705
2009-04-21 19:38:58 -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
Rob Pike
bfd5ede78d add -P pkgdir option to 6l to have it look first in pkgdir for a package.
this allows gotest to find the locally built package when doing
	make
	gotest
without this option, one would have to say
	make install
	gotest
which kinda defeats the purpose

based on discussions with rsc.

R=ken,rsc
DELTA=12  (10 added, 1 deleted, 1 changed)
OCL=27606
CL=27606
2009-04-17 19:39:45 -07:00
Rob Pike
aaf63f8d06 Step 1 of the Big Error Shift: make os.Error an interface and replace *os.Errors with os.Errors.
lib/template updated to use new setup; its clients also updated.

Step 2 will make os's error support internally much cleaner.

R=rsc
OCL=27586
CL=27586
2009-04-17 00:08:24 -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
0f153ec6b4 build packages in obj/ subdirectory that mimics $GOROOT/pkg.
for example, if building in src/lib/container,
objects go in obj/container/, so that 6g -Iobj
will find "container/vector".

install packages in hierarchy in $GOROOT.

this change only updates gobuild.
another change will have to update all
the sources to refer to "container/vector" etc
and regenerate all the Makefiles.

there are some pretty lame functions here
(e.g., Mkdir, Remove, the Getenv("PWD"))
but i will implement better ones in another CL.

R=r
DELTA=117  (99 added, 2 deleted, 16 changed)
OCL=27550
CL=27574
2009-04-16 20:52:13 -07:00
Russ Cox
7847056dfb rewrite gobuild in go.
R=r
DELTA=1305  (704 added, 590 deleted, 11 changed)
OCL=27546
CL=27548
2009-04-16 00:18:11 -07:00
Russ Cox
1cb3b7d124 panicln: emit just one newline
R=ken
OCL=27537
CL=27545
2009-04-15 22:38:09 -07:00
Rob Pike
57bff962d9 fix gotest by fixing nm -s to print in file order by storing a sequence number
as the .6 file is read.   now tests will be run in file order.

R=rsc
DELTA=9  (6 added, 1 deleted, 2 changed)
OCL=27542
CL=27544
2009-04-15 21:57:55 -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
Kai Backman
35a775d045 Fixed optab to support SWI with long constant (the mode used
for linux system calls).

R=rsc
APPROVED=rsc
DELTA=3  (3 added, 0 deleted, 0 changed)
OCL=27325
CL=27328
2009-04-10 16:44:01 -07:00
Kai Backman
4e1896a1b5 Adding ARM elf support to the 5l linker.
R=rsc
APPROVED=rsc
DELTA=312  (312 added, 0 deleted, 0 changed)
OCL=27133
CL=27326
2009-04-10 16:35:36 -07:00
Ken Thompson
cb15bbe748 bug in stack size used in
extending segmented stack

R=r
OCL=27319
CL=27319
2009-04-10 15:23:19 -07:00
Ken Thompson
f9854978e2 bug 142
order of evaluation && and ||

R=r
OCL=27294
CL=27294
2009-04-09 19:11:24 -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
8d8225d529 turn gc of unused data/code back on in loaders.
turned it off while debugging 8 runtime problem,
checked in the change accidentally.

R=r
DELTA=4  (0 added, 0 deleted, 4 changed)
OCL=27040
CL=27046
2009-04-02 17:56:23 -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
95100344d3 fix runtime stack overflow bug that gri ran into:
160 - 75 was just barely not enough for deferproc + morestack.

added enum names and bumped to 256 - 128.
added explanation.

changed a few mal() (garbage-collected) to
malloc()/free() (manually collected).

R=ken
OCL=26981
CL=26981
2009-04-01 00:26:00 -07:00
David Symonds
c025cf64dc Bail out of gotest immediately if compiling fails.
R=rsc
APPROVED=rsc
DELTA=4  (2 added, 2 deleted, 0 changed)
OCL=26978
CL=26978
2009-03-31 22:35:55 -07:00