- renamed Len -> BitLen, simplified implementation
- renamed old Div, Mod, DivMod -> Que, Rem, QuoRem
- implemented Div, Mod, DivMod (Euclidian definition, more
useful in a mathematical context)
- fixed a bug in Exp (-0 was possible)
- added extra tests to check normalized results everywhere
- uniformly set Int.neg flag at the end of computations
- minor cosmetic cleanups
- ran all tests
R=rsc
CC=golang-dev
https://golang.org/cl/1091041
- fixed a couple of bugs in the process
(shift right was incorrect for negative numbers)
- added more tests and made some tests more robust
- changed pidigits back to using shifts to multiply
by 2 instead of add
This improves pidigit -s -n 10000 by approx. 5%:
user 0m6.496s (old)
user 0m6.156s (new)
R=rsc
CC=golang-dev
https://golang.org/cl/963044
this is a version synthesized from rsc's, dean's and my
versions. changes and updates:
- embeds the retval script and pushes a new version to the
device if needed
- passes arguments correctly to the program on the device
- export GOARCH, GOTRACEBACK and GOGC from the local
environment to the device.
- added times.out support to run-arm
enabled a few tests that are now passing and moved the
GOGC=off workaround to run-arm.
R=dpx
CC=golang-dev, rsc
https://golang.org/cl/880046
tested on linux/amd64, linux/386, linux/arm, darwin/amd64, darwin/386.
freebsd untested; will finish in a separate CL.
for now all the panics are errorStrings.
richer structures can be added as necessary
once the mechanism is shaked out.
R=r
CC=golang-dev
https://golang.org/cl/906041
1. Fix bug in GOMAXPROCS when trying to cut number of procs
Race could happen on any system but was
manifesting only on Xen hosted Linux.
2. Fix recover on ARM, where FP != caller SP.
R=r
CC=golang-dev
https://golang.org/cl/880043
* correct symbol table size
* do not reorder functions in output
* traceback
* signal handling
* use same code for go + defer
* handle leaf functions in symbol table
R=kaib, dpx
CC=golang-dev
https://golang.org/cl/884041
* adds pass 3 to dequeue from channels eagerly
various other cleanup/churn:
* use switch on cas->send in each pass to
factor out common code.
* longer goto labels, commented at target
* be more agressive about can't happen:
throw instead of print + cope.
* use "select" instead of "selectgo" in errors
* use printf for debug prints when possible
R=ken2, ken3
CC=golang-dev, r
https://golang.org/cl/875041
note that sortmain.go has been run through hg gofmt;
only the formatting of the day initializers changed.
i'm happy to revert that formatting if you'd prefer.
stop on error in doc/progs/run
R=r
CC=golang-dev
https://golang.org/cl/850041
test/64bit.go: segfaults on sheevaplug(armv5)
The following have long runtimes when GC is on.
Sample run time in seconds for android emulator
and sheevaplug
test/stack.go: 4934s 1780s
test/ken/chan.go: 860s 296s
test/gc1.go: 218s 69s
R=rsc, kaib
CC=golang-dev
https://golang.org/cl/749041
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
trivial stuff
lex.c: these prototypes are in a.h
asm.c: unused variables
arm-pass.txt deal w/ sieve.go rename and addition of sieve2.go
R=kaib, rsc
CC=golang-dev
https://golang.org/cl/244041
apparently some versions of GNU make cannot
handle the %: %.$O rule. i don't understand why
and don't care enough to find out.
R=agl1
CC=golang-dev
https://golang.org/cl/206055
ddd1.go:16:10: error: argument 1 has incompatible type
ddd1.go:17:10: error: argument 1 has incompatible type
ddd1.go:15:10: error: floating point constant truncated to integer
R=rsc
CC=golang-dev
https://golang.org/cl/204048
bug121.go:12:3: error: name list not allowed in interface type
bug121.go:16:2: error: expected signature or type name
semi1.go:10:76: error: unexpected semicolon or newline before ‘{’
semi1.go:10:5: error: reference to undefined name ‘x’
semi1.go:10:8: error: reference to undefined name ‘y’
semi1.go:12:3: error: reference to undefined name ‘z’
semi2.go:10:79: error: unexpected semicolon or newline before ‘{’
semi2.go:10:9: error: reference to undefined name ‘x’
semi3.go:10:79: error: unexpected semicolon or newline before ‘{’
semi3.go:10:6: error: reference to undefined name ‘x’
semi3.go:10:9: error: reference to undefined name ‘y’
semi3.go:10:12: error: reference to undefined name ‘z’
semi3.go:12:3: error: reference to undefined name ‘z’
semi4.go:11:2: error: unexpected semicolon or newline before ‘{’
semi4.go:10:6: error: reference to undefined name ‘x’
semi4.go:12:3: error: reference to undefined name ‘z’
semi5.go:10:1: error: unexpected semicolon or newline before ‘{’
semi7.go:11:2: error: unexpected semicolon or newline before ‘else’
semi7.go:10:5: error: reference to undefined name ‘x’
slice.go:9:11: error: missing lower bound in slice expression
slice.go:9:9: error: reference to undefined name ‘y’
slice.go:9:12: error: reference to undefined name ‘z’
R=rsc
CC=golang-dev
https://golang.org/cl/201061
bug249.go:10:5: error: incompatible type in initialization
bug249.go:26:5: error: incompatible type in initialization
R=rsc
CC=golang-dev
https://golang.org/cl/198058
import1.go:12:8: error: redefinition of ‘bufio’
import1.go:11:8: note: previous definition of ‘bufio’ was here
import1.go:16:2: error: redefinition of ‘fmt’
import1.go:15:2: note: previous definition of ‘fmt’ was here
import1.go:11:8: error: imported and not used: bufio
R=rsc
CC=golang-dev
https://golang.org/cl/194165
I have to admit that "cannot use type p.T as type p.T" is a
bit weak. 8g gives a similar error ("cannot use v1 (type p.T)
as type p.T in assignment").
bug3.go:37:5: error: incompatible type in initialization (incompatible type for method ‘M’ (different parameter types))
bug3.go:38:5: error: incompatible type in initialization (incompatible type for method ‘M’ (different parameter types))
bug3.go:43:5: error: incompatible type in initialization (incompatible type for method ‘M’ (different parameter types))
bug3.go:44:5: error: incompatible type in initialization (incompatible type for method ‘M’ (different parameter types))
bug3.go:49:5: error: incompatible types in assignment (cannot use type p.T as type p.T)
bug3.go:50:5: error: incompatible types in assignment (cannot use type p.T as type p.T)
bug3.go:55:5: error: incompatible types in assignment (incompatible type for method ‘M’ (different parameter types))
bug3.go:56:5: error: incompatible types in assignment (incompatible type for method ‘M’ (different parameter types))
bug3.go:57:6: error: incompatible types in assignment (incompatible type for method ‘M’ (different parameter types))
bug3.go:58:6: error: incompatible types in assignment (incompatible type for method ‘M’ (different parameter types))
bug3.go:59:5: error: incompatible types in assignment (incompatible type for method ‘M’ (different parameter types))
bug3.go:60:5: error: incompatible types in assignment (incompatible type for method ‘M’ (different parameter types))
bug3.go:61:6: error: incompatible types in assignment (incompatible type for method ‘M’ (different parameter types))
bug3.go:62:6: error: incompatible types in assignment (incompatible type for method ‘M’ (different parameter types))
R=rsc
CC=golang-dev
https://golang.org/cl/199044
I got it wrong because gccgo was incorrectly failing to clear
the value when a nonblocking receive did not receive
anything.
R=rsc
CC=golang-dev
https://golang.org/cl/194161
bug228.go:11:25: error: invalid use of ‘...’
bug228.go:13:13: error: ‘...’ only permits one name
bug228.go:15:20: error: ‘...’ must be last parameter
bug228.go:17:7: error: expected type
bug228.go:19:8: error: expected type
R=rsc
CC=golang-dev
https://golang.org/cl/196077
* 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
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
Since gcco runs goroutines in independent threads, it needs
locking for the global variables. This shows up when I use
ordinary increments rather than locked increments for var++.
R=ken2, ken3
CC=golang-dev
https://golang.org/cl/190074
(Thanks to ken and rsc for pointing this out)
rsc:
ken pointed out that there's a race in the new
one-lock-per-channel code. the issue is that
if one goroutine has gone to sleep doing
select {
case <-c1:
case <-c2:
}
and then two more goroutines try to send
on c1 and c2 simultaneously, the way that
the code makes sure only one wins is the
selgen field manipulation in dequeue:
// if sgp is stale, ignore it
if(sgp->selgen != sgp->g->selgen) {
//prints("INVALID PSEUDOG POINTER\n");
freesg(c, sgp);
goto loop;
}
// invalidate any others
sgp->g->selgen++;
but because the global lock is gone both
goroutines will be fiddling with sgp->g->selgen
at the same time.
This results in a 7% slowdown in the single threaded case for a
ping-pong microbenchmark.
Since the cas predominantly succeeds, adding a simple check first
didn't make any difference.
R=rsc
CC=golang-dev
https://golang.org/cl/180068
* 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
parsing and printing to new syntax.
Use -oldparser to parse the old syntax,
use -oldprinter to print the old syntax.
2) Change default gofmt formatting settings
to use tabs for indentation only and to use
spaces for alignment. This will make the code
alignment insensitive to an editor's tabwidth.
Use -spaces=false to use tabs for alignment.
3) Manually changed src/exp/parser/parser_test.go
so that it doesn't try to parse the parser's
source files using the old syntax (they have
new syntax now).
4) gofmt -w src misc test/bench
5th and last set of files.
R=rsc
CC=golang-dev
https://golang.org/cl/180050
Pull the struct into a single line, since 6g reports the error
on the last line of the struct definition and gccgo reports it
on the first line.
6g:
bug215.go:12: invalid recursive type A
gccgo:
bug215.go:12:6: error: invalid recursive type ‘A’
R=rsc
https://golang.org/cl/180044
This change removes the necessity to have GOBIN in $PATH,
and also doesn't assume that the build is being run from
$GOROOT/src. This is a minimal set of necessary changes
to get Go to build happily from the FreeBSD ports
collection.
R=rsc
CC=golang-dev
https://golang.org/cl/171044
- remove use of implicit string concatenation
- these appear to be the only files correctly compiling under test
that used implicit string concatenation
R=rsc
https://golang.org/cl/172043
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
* 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
* reverse-complement: port C algorithm to Go
saves 30% on my MacBook Pro and makes it a fairer comparison.
* test reverse-complement with and without GC (another 15%)
* revise timing.sh to work on more systems
* avoid two glibcisms in fasta.c
R=r
https://golang.org/cl/156110
performance hit of about 20% but more intuitive results for submatches.
we need a good regexp package at some point.
Fixes#110.
R=rsc
CC=golang-dev
https://golang.org/cl/152131
too hard to make it the same everywhere.
still checking for non-zero exit status though.
disable core files while running tests
R=r
http://go/go-review/1026037
tests are processed, and thus the run.out output. The default
LANG on Fedora 10, en_US.utf8, causes the tests to be sorted
differently--e.g., arrayindex1.go and arrayindex.go are sorted
in the opposite order.
R=r, rsc
http://go/go-review/1018022
