Avoids problems with local declarations shadowing other names.
We write a more explicit form than the incoming program, so there
may be additional type annotations. For example:
int := "hello"
j := 2
would normally turn into
var int string = "hello"
var j int = 2
but the int variable shadows the int type in the second line.
This CL marks all local variables with a per-function sequence number,
so that this would instead be:
var int·1 string = "hello"
var j·2 int = 2
Fixes#4326.
R=ken2
CC=golang-dev
https://golang.org/cl/6816100
When local declarations needed unexported types, these could
be missing in the export data.
Fixes build with -gcflags -lll, except for exp/gotype.
R=golang-dev, rsc, lvd
CC=golang-dev
https://golang.org/cl/6813067
I fixed a bug in gccgo that was causing it to only give an
error for the first package that was imported and not used.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6813058
Someone new to the language may not know the connection between ints and arrays, which was the only thing that the previous error told you anything about.
Fixes#4256.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6739048
Since this patch changes the way complex literals are written
in export data, there are a few other glitches.
Fixes#4159.
R=golang-dev, rsc
CC=golang-dev, remy
https://golang.org/cl/6674047
The other tests either need a complex procedure
or are architecture- or OS-dependent.
Update #4139.
R=golang-dev, daniel.morsing, iant
CC=golang-dev
https://golang.org/cl/6618062
Also mention that ignoring second blank identifier of range is required by the spec in the code.
Fixes#4173.
R=daniel.morsing, remyoudompheng, r
CC=golang-dev
https://golang.org/cl/6594043
const1.go:31:12: error: integer constant overflow
const1.go:31:12: error: integer constant overflow
const1.go:33:12: error: integer constant overflow
const1.go:33:12: error: integer constant overflow
const1.go:34:14: error: integer constant overflow
const1.go:35:17: error: integer constant overflow
const1.go:35:17: error: integer constant overflow
const1.go:35:17: error: integer constant overflow
const1.go:35:17: error: integer constant overflow
const1.go:35:17: error: integer constant overflow
const1.go:36:19: error: integer constant overflow
const1.go:37:15: error: integer constant overflow
const1.go:37:15: error: integer constant overflow
const1.go:37:24: error: integer constant overflow
const1.go:37:15: error: integer constant overflow
const1.go:37:15: error: integer constant overflow
const1.go:37:15: error: integer constant overflow
const1.go:37:24: error: integer constant overflow
const1.go:37:15: error: integer constant overflow
const1.go:38:12: error: integer constant overflow
const1.go:38:12: error: integer constant overflow
const1.go:38:12: error: integer constant overflow
const1.go:38:12: error: integer constant overflow
const1.go:41:20: error: integer constant overflow
const1.go:41:20: error: integer constant overflow
const1.go:42:20: error: integer constant overflow
const1.go:42:20: error: integer constant overflow
const1.go:44:28: error: integer constant overflow
const1.go:44:28: error: integer constant overflow
const1.go:45:14: error: integer constant overflow
const1.go:49:14: error: integer constant overflow
const1.go:50:14: error: integer constant overflow
const1.go:51:14: error: integer constant overflow
const1.go:54:23: error: integer constant overflow
const1.go:54:23: error: integer constant overflow
const1.go:54:23: error: integer constant overflow
const1.go:54:23: error: integer constant overflow
const1.go:56:14: error: integer constant overflow
const1.go:57:24: error: integer constant overflow
const1.go:57:24: error: integer constant overflow
const1.go:58:24: error: integer constant overflow
const1.go:58:24: error: integer constant overflow
const1.go:59:22: error: integer constant overflow
const1.go:59:22: error: integer constant overflow
const1.go:61:24: error: integer constant overflow
const1.go:62:20: error: division by zero
const1.go:65:19: error: floating point constant overflow
const1.go:65:19: error: floating point constant overflow
const1.go:66:28: error: floating point constant overflow
const1.go:66:28: error: floating point constant overflow
const1.go:67:19: error: floating point constant overflow
const1.go:67:19: error: floating point constant overflow
const1.go:68:19: error: division by zero
const1.go:33:14: error: integer constant overflow
const1.go:35:19: error: integer constant overflow
const1.go:42:22: error: integer constant overflow
const1.go:53:17: error: integer constant overflow
const1.go:55:14: error: integer constant overflow
const1.go:59:24: error: integer constant overflow
const1.go:69:20: error: expected integer type
const1.go:75:4: error: argument 1 has incompatible type (cannot use type int8 as type int)
const1.go:76:4: error: argument 1 has incompatible type (cannot use type int8 as type int)
const1.go:77:4: error: argument 1 has incompatible type (cannot use type uint8 as type int)
const1.go:79:4: error: argument 1 has incompatible type (cannot use type float32 as type int)
const1.go:80:4: error: argument 1 has incompatible type (cannot use type float64 as type int)
const1.go:81:4: error: floating point constant truncated to integer
const1.go:83:4: error: argument 1 has incompatible type (cannot use type float64 as type int)
const1.go:84:4: error: argument 1 has incompatible type (cannot use type string as type int)
const1.go:85:4: error: argument 1 has incompatible type (cannot use type bool as type int)
const1.go:88:7: error: const initializer cannot be nil
const2.go:14:8: error: expected ‘=’
const5.go:27:7: error: expression is not constant
const5.go:28:7: error: expression is not constant
const5.go:30:7: error: expression is not constant
const5.go:31:7: error: expression is not constant
ddd1.go:57:23: error: invalid use of ‘...’ in type conversion
ddd1.go:59:6: error: invalid use of ‘...’ in type conversion
ddd1.go:60:12: error: use of ‘[...]’ outside of array literal
ddd1.go:21:15: error: argument 1 has incompatible type
ddd1.go:22:10: error: argument 1 has incompatible type
ddd1.go:30:6: error: invalid use of ‘...’ with non-slice
ddd1.go:30:6: error: invalid use of ‘...’ with non-slice
ddd1.go:46:2: error: invalid use of %<...%> with builtin function
ddd1.go:47:2: error: invalid use of %<...%> with builtin function
ddd1.go:49:2: error: invalid use of %<...%> with builtin function
ddd1.go:50:6: error: invalid use of %<...%> with builtin function
ddd1.go:51:6: error: invalid use of %<...%> with builtin function
ddd1.go:53:6: error: invalid use of %<...%> with builtin function
ddd1.go:58:13: error: invalid use of %<...%> with builtin function
ddd1.go:20:10: error: floating point constant truncated to integer
ddd1.go:32:6: error: invalid use of ‘...’ calling non-variadic function
declbad.go:20:3: error: variables redeclared but no variable is new
declbad.go:38:3: error: variables redeclared but no variable is new
declbad.go:44:3: error: variables redeclared but no variable is new
declbad.go:51:3: error: variables redeclared but no variable is new
declbad.go:57:3: error: variables redeclared but no variable is new
declbad.go:63:3: error: variables redeclared but no variable is new
declbad.go:26:3: error: incompatible types in assignment (cannot use type float32 as type int)
declbad.go:32:3: error: incompatible types in assignment (cannot use type int as type float32)
declbad.go:44:3: error: incompatible types in assignment (different number of results)
fixedbugs/bug223.go:21:5: error: initialization expression for ‘m’ depends upon itself
fixedbugs/bug412.go:10:2: error: duplicate field name ‘x’
fixedbugs/bug413.go:11:5: error: initialization expression for ‘i’ depends upon itself
fixedbugs/bug416.go:13:1: error: method ‘X’ redeclares struct field name
fixedbugs/bug435.go:15:49: error: missing ‘)’
fixedbugs/bug435.go:15:2: error: reference to undefined name ‘bar’
fixedbugs/bug451.go:9:9: error: expected package
typeswitch3.go:39:9: error: no new variables on left side of ‘:=’
typeswitch3.go:24:2: error: impossible type switch case (type has no methods)
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6560063
Today, if run.go doesn't understand a test header line it just ignores
the test, making it too easy to write or edit tests that are not actually
being run.
- expand errorcheck to accept flags, so that bounds.go and escape*.go can run.
- create a whitelist of skippable tests in run.go; skipping others is an error.
- mark all skipped tests at top of file.
Update #4139.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6549054
Revision 63f7abcae015 introduced a bug caused by
code assuming registers started at X5, not X0.
Fixes#4138.
R=rsc
CC=golang-dev, remy
https://golang.org/cl/6558043
Broke tests on 386.
««« original CL description
6l/8l: emit correct opcodes to F(SUB|DIV)R?D.
When the destination was not F0, 6l and 8l swapped FSUBD/FSUBRD and
FDIVD/FDIVRD.
R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/6498092
»»»
R=golang-dev
CC=golang-dev
https://golang.org/cl/6492100
This fixes a spurious 'invalid recursive type' error, and stops the compiler from emitting errors on uses of the invalid type.
Fixes#3766.
R=golang-dev, dave, minux.ma, rsc
CC=golang-dev
https://golang.org/cl/6443100
CVTSS2SQ's rounding mode is controlled by the RC field of MXCSR;
as we specifically need truncate semantic, we should use CVTTSS2SQ.
Fixes#3804.
R=rsc, r
CC=golang-dev
https://golang.org/cl/6352079
The receive operator was given incorrect precedence
resulting in incorrect deletion of parentheses.
Fixes#3843.
R=rsc
CC=golang-dev, remy
https://golang.org/cl/6442049
The compiledir pattern compiles all files xxx.dir/*.go
in lexicographic order (which is assumed to coincide with
the topological order of dependencies).
R=rsc
CC=golang-dev, remy
https://golang.org/cl/6440048
They were previously ignored when deciding order and
detecting dependency loops.
Fixes#3824.
R=rsc, golang-dev
CC=golang-dev, remy
https://golang.org/cl/6455055
CL 4313064 fixed its test case but did not address a
general enough problem:
type T1 struct { F *T2 }
type T2 T1
type T3 T2
could still end up copying the definition of T1 for T2
before T1 was done being evaluated, or T3 before T2
was done.
In order to propagate the updates correctly,
record a copy of an incomplete type for re-execution
once the type is completed. Roll back CL 4313064.
Fixes#3709.
R=ken2
CC=golang-dev, lstoakes
https://golang.org/cl/6301059
Not a complete fix for issue 3342, but fixes the trivial case.
There may still be a race in the instants before and after
a scavenger-induced garbage collection.
Intended to be "obviously safe": a call to runtime·gosched
before main.main is no different than a call to runtime.Gosched
at the beginning of main.main, and it is (or had better be)
safe to call runtime.Gosched at any point during main.
Update #3342.
R=iant
CC=golang-dev
https://golang.org/cl/5919052
Breaks closure test when GOMAXPROCS=2 or more.
««« original CL description
runtime: restore deadlock detection in the simplest case.
Fixes#3342.
R=iant, r, dave, rsc
CC=golang-dev, remy
https://golang.org/cl/5844051
»»»
R=rsc
CC=golang-dev
https://golang.org/cl/5924045
The two optimizations for small structs and arrays
were missing the implicit cast from ideal bool.
Fixes#3351.
R=rsc, lvd
CC=golang-dev
https://golang.org/cl/5848062
As runtime.UintType is no longer defined, the gccgo error
messages have changed.
bug388.go:12:10: error: reference to undefined identifier ‘runtime.UintType’
bug388.go:12:10: error: invalid named/anonymous mix
bug388.go:13:21: error: reference to undefined identifier ‘runtime.UintType’
bug388.go:17:10: error: reference to undefined identifier ‘runtime.UintType’
bug388.go:18:18: error: reference to undefined identifier ‘runtime.UintType’
bug388.go:22:9: error: non-name on left side of ‘:=’
bug388.go:27:10: error: expected type
bug388.go:32:9: error: expected type
bug388.go:23:14: error: reference to field ‘i’ in object which has no fields or methods
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5755044
The two string comparison optimizations were
missing the implicit cast from ideal bool.
Fixes#3119.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5696071
This is a manual undo of CL 5674098.
It does not implement the even less strict spec
that we just agreed on, but it gets us back where
we were at the last weekly.
R=ken2
CC=golang-dev
https://golang.org/cl/5683069
Such variables would be put at 0(SP), leading to serious
corruptions at zero initialization.
Fixes#3084.
R=golang-dev, r
CC=golang-dev, remy
https://golang.org/cl/5683052
Because bug040.go was ignoring all error messages, the fact
that it got an error about fuction main was being ignored.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5675085
The set of errors forwarded by the os package varied with system and
was therefore non-portable.
Three helpers added for portable error checking: IsExist, IsNotExist, and IsPermission.
One or two more may need to come, but let's keep the set very small to discourage
thinking about errors that way.
R=mikioh.mikioh, gustavo, r, rsc
CC=golang-dev
https://golang.org/cl/5672047
This CL makes it possible to run make.bash with
GOOS and GOARCH set to something other than
the native host GOOS and GOARCH.
As part of the CL, the tool directory moves from bin/tool/
to pkg/tool/goos_goarch where goos and goarch are
the values for the host system (running the build), not
the target. pkg/ is not technically appropriate, but C objects
are there now tool (pkg/obj/) so this puts all the generated
binaries in one place (rm -rf $GOROOT/pkg cleans everything).
Including goos_goarch in the name allows different systems
to share a single $GOROOT on a shared file system.
Fixes#2920.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5645093
Fix it twice: reuse registers more aggressively in cgen abop,
and also release R14 and R15, which are no longer m and g.
Fixes#2669.
R=ken2
CC=golang-dev
https://golang.org/cl/5655056
This changes makes constant propagation compare 'from' values using node
pointers rather than symbol names when checking to see whether a set
operation is redundant. When a function is inlined multiple times in a
calling function its arguments will share symbol names even though the values
are different. Prior to this fix the bug409 test would hit a case with 6g
where an LEAQ instruction was incorrectly eliminated from the second inlined
function call. 8g appears to have had the same bug, but the test did not fail
there.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5646044
The go- is redundant now that the directory is required
to be inside $GOROOT. Rob LGTMed the idea.
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5618044
gccgo currently fails this test:
fixedbugs/bug402.go:12:9: error: floating point constant truncated to integer
fixedbugs/bug402.go:13:8: error: floating point constant truncated to integer
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5600050
complit1.go:37:34: error: may only omit types within composite literals of slice, array, or map type
complit1.go:38:19: error: may only omit types within composite literals of slice, array, or map type
complit1.go:18:21: error: slice of unaddressable value
complit1.go:19:10: error: slice of unaddressable value
complit1.go:20:9: error: slice of unaddressable value
convert1.go:28:13: error: invalid type conversion
convert1.go:32:12: error: invalid type conversion (cannot use type string as type Tint64)
convert1.go:36:12: error: invalid type conversion
convert1.go:37:13: error: invalid type conversion
convert1.go:40:11: error: invalid type conversion
convert1.go:41:12: error: invalid type conversion
convert1.go:44:12: error: invalid type conversion
convert1.go:46:13: error: invalid type conversion
convert1.go:48:11: error: invalid type conversion
convert1.go:50:12: error: invalid type conversion
convert1.go:52:6: error: invalid type conversion
convert1.go:53:12: error: invalid type conversion
convert1.go:54:12: error: invalid type conversion
convert1.go:56:13: error: invalid type conversion
convert1.go:57:11: error: invalid type conversion
convert1.go:58:11: error: invalid type conversion
convert1.go:64:13: error: invalid type conversion
convert1.go:68:12: error: invalid type conversion (cannot use type Tstring as type Tint64)
convert1.go:72:12: error: invalid type conversion
convert1.go:73:13: error: invalid type conversion
convert1.go:76:11: error: invalid type conversion (cannot use type Tbyte as type Trune)
convert1.go:77:12: error: invalid type conversion (cannot use type Tbyte as type Tint64)
convert1.go:80:12: error: invalid type conversion
convert1.go:82:13: error: invalid type conversion
convert1.go:84:11: error: invalid type conversion (cannot use type Trune as type Tbyte)
convert1.go:86:12: error: invalid type conversion (cannot use type Trune as type Tint64)
convert1.go:88:6: error: invalid type conversion (cannot use type Tint64 as type string)
convert1.go:89:12: error: invalid type conversion
convert1.go:90:12: error: invalid type conversion
convert1.go:92:13: error: invalid type conversion (cannot use type Tint64 as type Tstring)
convert1.go:93:11: error: invalid type conversion (cannot use type Tint64 as type Tbyte)
convert1.go:94:11: error: invalid type conversion (cannot use type Tint64 as type Trune)
fixedbugs/bug195.go:9:21: error: interface contains embedded non-interface
fixedbugs/bug195.go:12:21: error: interface contains embedded non-interface
fixedbugs/bug195.go:15:15: error: interface contains embedded non-interface
fixedbugs/bug195.go:18:2: error: invalid recursive interface
fixedbugs/bug195.go:26:2: error: invalid recursive interface
fixedbugs/bug195.go:22:2: error: invalid recursive interface
fixedbugs/bug251.go:15:2: error: invalid recursive interface
fixedbugs/bug251.go:11:2: error: invalid recursive interface
fixedbugs/bug374.go:18:34: error: use of undefined type ‘xxxx’
fixedbugs/bug374.go:16:5: error: incompatible type in initialization (incompatible type for method ‘m’ (different number of parameters))
fixedbugs/bug383.go:11:2: error: expected boolean expression
fixedbugs/bug383.go:12:2: error: expected boolean expression
fixedbugs/bug386.go:10:25: error: incompatible type for return value 1 (type has no methods)
fixedbugs/bug386.go:12:25: error: incompatible type for return value 1 (type has no methods)
fixedbugs/bug388.go:12:10: error: invalid named/anonymous mix
fixedbugs/bug388.go:17:19: error: non-name on left side of ‘:=’
fixedbugs/bug388.go:22:9: error: non-name on left side of ‘:=’
fixedbugs/bug388.go:27:10: error: expected type
fixedbugs/bug388.go:32:9: error: expected type
fixedbugs/bug388.go:23:14: error: reference to field ‘i’ in object which has no fields or methods
fixedbugs/bug388.go:18:18: error: invalid use of type
fixedbugs/bug389.go:12:5: error: incompatible type in initialization (different parameter types)
fixedbugs/bug390.go:15:24: error: expected integer, floating, or complex type
fixedbugs/bug394.go:10:1: error: expected declaration
fixedbugs/bug397.go:12:2: error: incompatible type for element 2 key in map construction
switch3.go:18:2: error: incompatible types in binary expression
switch3.go:22:2: error: incompatible types in binary expression
switch3.go:28:2: error: map can only be compared to nil
switch3.go:35:2: error: slice can only be compared to nil
switch3.go:42:2: error: func can only be compared to nil
syntax/else.go:11:9: error: expected ‘if’ or ‘{’
typeswitch2.go:15:2: error: duplicate type in switch
typeswitch2.go:19:2: error: duplicate type in switch
typeswitch2.go:26:2: error: duplicate type in switch
typeswitch2.go:40:9: error: ‘t’ declared and not used
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5573073
Pulling function calls out to happen before the
expression being evaluated was causing illegal
reorderings even without inlining; with inlining
it got worse. This CL adds a separate ordering pass
to move things with a fixed order out of expressions
and into the statement sequence, where they will
not be reordered by walk.
Replaces lvd's CL 5534079.
Fixes#2740.
R=lvd
CC=golang-dev
https://golang.org/cl/5569062
I haven't looked at the source, but the gc compiler appears to
omit "not used" errors when there is an error in the
initializer. This is harder to do in gccgo, and frankly I
think the "not used" error is still useful even if the
initializer has a problem. This CL tweaks some tests to avoid
the error, which is not the point of these tests in any case.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5561059
Preserve test.
changeset: 11593:f1deaf35e1d1
user: Luuk van Dijk <lvd@golang.org>
date: Tue Jan 17 10:00:57 2012 +0100
summary: gc: fix infinite recursion for embedded interfaces
This is causing 'interface type loop' errors during compilation
of a complex program. I don't understand what's happening
well enough to boil it down to a simple test case, but undoing
this change fixes the problem.
The change being undone is fixing a corner case (uses of
pointer to interface in an interface definition) that basically
only comes up in erroneous Go programs. Let's not try to
fix this again until after Go 1.
Unfixes issue 1909.
TBR=lvd
CC=golang-dev
https://golang.org/cl/5555063
This will make these tests more meaningful for gccgo, which
runs tests in parallel and has no equivalent to golden.out.
Remove ken/simpprint.go since it duplicates helloworld.go.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5536058
I'm planning to change these tests, but the gofmt changes are
fairly extensive, so I'm separating the gofmt changes from the
substantive changes.
R=golang-dev, rsc, r
CC=golang-dev
https://golang.org/cl/5557052
This fixes issue 2444.
A big cleanup of all 31/32bit size boundaries i'll leave for another cl though. (see also issue 1700).
R=rsc
CC=golang-dev
https://golang.org/cl/5484058
Refactors the benchmarks and test code.
Now benchmarks can call Errorf, Fail, etc.,
and the runner will act accordingly.
Because functionality has been folded into an
embedded type, a number of methods' docs
no longer appear in godoc output. A fix is
underway; if it doesn't happen fast enough,
I'll add wrapper methods to restore the
documentation.
R=bradfitz, adg, rsc
CC=golang-dev
https://golang.org/cl/5492060
All but 3 cases (in gcimporter.go and hixie.go)
are automatic conversions using gofix.
No attempt is made to use the new Append functions
even though there are definitely opportunities.
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5447069
This is the result of running `gofix -r hashsum` over the tree, changing
the hash function implementations by hand and then fixing a couple of
instances where gofix didn't catch something.
The changed implementations are as simple as possible while still
working: I'm not trying to optimise in this CL.
R=rsc, cw, rogpeppe
CC=golang-dev
https://golang.org/cl/5448065
The wrong value made Nconv() show "1" for node "-1", and "2" from
node "2+3".
Fixes#2452.
R=gri, lvd, rsc
CC=golang-dev, remy
https://golang.org/cl/5435064
An experiment: allow structs to be copied even if they
contain unexported fields. This gives packages the
ability to return opaque values in their APIs, like reflect
does for reflect.Value but without the kludgy hacks reflect
resorts to.
In general, we trust programmers not to do silly things
like *x = *y on a package's struct pointers, just as we trust
programmers not to do unicode.Letter = unicode.Digit,
but packages that want a harder guarantee can introduce
an extra level of indirection, like in the changes to os.File
in this CL or by using an interface type.
All in one CL so that it can be rolled back more easily if
we decide this is a bad idea.
Originally discussed in March 2011.
https://groups.google.com/group/golang-dev/t/3f5d30938c7c45ef
R=golang-dev, adg, dvyukov, r, bradfitz, jan.mercl, gri
CC=golang-dev
https://golang.org/cl/5372095
Allow any type in switch on interface value.
Statically check typeswitch early.
Fixes#2423.
Fixes#2424.
R=rsc, dsymonds
CC=golang-dev
https://golang.org/cl/5339045
This contains the files that required handiwork, mostly
Makefiles with updated TARGs, plus the two packages
with modified package names.
html/template/doc.go needs a separate edit pass.
test/fixedbugs/bug358.go is not legal go so gofix fails on it.
R=rsc
CC=golang-dev
https://golang.org/cl/5340050
Fixes#2355.
I have a test, but not sure if it's worth adding. Instead i've made
the patching-over in reflect.c methods more fatal and more descriptive.
R=rsc
CC=golang-dev
https://golang.org/cl/5302082
Got rid of all the magic mystery globals. Now
for %N, %T, and %S, the flags +,- and # set a sticky
debug, sym and export mode, only visible in the new fmt.c.
Default is error mode. Handle h and l flags consistently with
the least side effects, so we can now change
things without worrying about unrelated things
breaking.
fixes#2361
R=rsc
CC=golang-dev
https://golang.org/cl/5316043
Fixes#2337.
Unfortunate sequence of events is:
1. maxcpu=2, mcpu=1, grunning=1
2. starttheworld creates an extra M:
maxcpu=2, mcpu=2, grunning=1
4. the goroutine calls runtime.GOMAXPROCS(1)
maxcpu=1, mcpu=2, grunning=1
5. since it sees mcpu>maxcpu, it calls gosched()
6. schedule() deschedules the goroutine:
maxcpu=1, mcpu=1, grunning=0
7. schedule() call getnextandunlock() which
fails to pick up the goroutine again,
because canaddcpu() fails, because mcpu==maxcpu
8. then it sees that grunning==0,
reports deadlock and terminates
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5191044
My previous CL:
changeset: 9645:ce2e5f44b310
user: Russ Cox <rsc@golang.org>
date: Tue Sep 06 10:24:21 2011 -0400
summary: gc: unify stack frame layout
introduced a bug wherein no variables were
being registerized, making Go programs 2-3x
slower than they had been before.
This CL fixes that bug (along with some others
it was hiding) and adds a test that optimization
makes at least one test case faster.
R=ken2
CC=golang-dev
https://golang.org/cl/5174045
bug340.go:14:7: error: expected type
bug340.go:15:4: error: reference to undefined field or method ‘x’
bug350.go:12:1: error: redefinition of ‘m’
bug350.go:11:1: note: previous definition of ‘m’ was here
bug350.go:15:1: error: redefinition of ‘p’
bug350.go:14:1: note: previous definition of ‘p’ was here
bug351.go:12:6: error: non-name on left side of ‘:=’
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5127041
bug363.go:13:12: error: invalid context-determined non-integer type for shift operand
bug363.go:16:12: error: invalid context-determined non-integer type for shift operand
pointer.go:34:6: error: incompatible type in initialization (pointer to interface type has no methods)
pointer.go:36:6: error: incompatible type in initialization
method2.go:15:1: error: invalid pointer or interface receiver type
method2.go:16:1: error: invalid pointer or interface receiver type
method2.go:21:1: error: invalid pointer or interface receiver type
method2.go:22:1: error: invalid pointer or interface receiver type
method2.go:28:15: error: type ‘*Val’ has no method ‘val’
method2.go:33:11: error: reference to undefined field or method ‘val’
shift1.go:19:16: error: invalid context-determined non-integer type for shift operand
shift1.go:24:19: error: invalid context-determined non-integer type for shift operand
shift1.go:25:17: error: invalid context-determined non-integer type for shift operand
shift1.go:18:18: error: shift of non-integer operand
shift1.go:26:13: error: floating point constant truncated to integer
shift1.go:33:15: error: integer constant overflow
shift1.go:34:15: error: integer constant overflow
shift1.go:35:17: error: integer constant overflow
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5081051
Added a return to bug357.go to avoid an error which gccgo
reports but 6g does not.
bug353.go:16:14: error: reference to undefined identifer ‘io.ReadWriterCloser’
bug357.go:18:2: error: value computed is not used
bug358.go:14:11: error: imported and not used: ioutil
bug358.go:19:9: error: invalid use of type
bug359.go:25:14: error: redefinition of ‘a’
bug359.go:25:6: note: previous definition of ‘a’ was here
bug359.go:19:6: error: incompatible type in initialization (implicit assignment of ‘list.List’ hidden field ‘front’)
bug362.go:13:6: error: iota is only defined in const declarations
bug362.go:14:6: error: iota is only defined in const declarations
bug362.go:15:6: error: iota is only defined in const declarations
bug363.go:13:12: error: shift of non-integer operand
bug363.go:16:12: error: shift of non-integer operand
bug365.go:15:8: error: expected package
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5078046
bug349.go:12:14: error: expected ‘;’ or ‘}’ or newline
bug349.go:12:2: error: not enough arguments to return
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5081047
// ERROR "pattern1" "pattern2"
means that there has to be one or more
lines matching pattern1 and then excluding
those, there have to be one or more lines
matching pattern2. So if you expect two
different error messages from a particular
line, writing two separate patterns checks
that both errors are produced.
Also, errchk now flags lines that produce
more errors than expected. Before, as long as
at least one error matched the pattern, all the
others were ignored.
Revise tests to expect or silence these
additional errors.
R=lvd, r, iant
CC=golang-dev
https://golang.org/cl/4869044
This is a core API change.
1) gofix misc src
2) Manual adjustments to the following files under src/pkg:
gob/decode.go
rpc/client.go
os/error.go
io/io.go
bufio/bufio.go
http/request.go
websocket/client.go
as well as:
src/cmd/gofix/testdata/*.go.in (reverted)
test/fixedbugs/bug243.go
3) Implemented gofix patch (oserrorstring.go) and test case (oserrorstring_test.go)
Compiles and runs all tests.
R=r, rsc, gri
CC=golang-dev
https://golang.org/cl/4607052
The spec was adjusted in commit df410d6a4842 to allow the
implicit assignment of strutures with unexported fields in
method receivers. This change updates the compiler.
Also moved bug322 into fixedbugs and updated golden.out
to reflect the removal of the last known bug.
Fixes#1402.
R=golang-dev, gri, rsc
CC=golang-dev
https://golang.org/cl/4526069
The code for converting negative floats was
incorrectly loading an FP control word from
the stack without ever having stored it there.
Thanks to Lars Pensjö for reporting this bug.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4515091
Previously, whether declaring a type which copied the structure of a type it was referenced in via a pointer field would work depended on whether you declared it before or after the type it copied, e.g. type T2 T1; type T1 struct { F *T2 } would work, however type T1 struct { F *T2 }; type T2 T1 wouldn't.
Fixes#667.
R=rsc
CC=golang-dev
https://golang.org/cl/4313064
go/types: update for export data format change
reflect: require package qualifiers to match during interface check
runtime: require package qualifiers to match during interface check
test: fixed bug324, adapt to be silent
Fixes#1550.
Issue 1536 remains open.
R=gri, ken2, r
CC=golang-dev
https://golang.org/cl/4442071
bug323.go:18:3: error: reference to undefined field or method ‘Meth’
bug323.go:19:3: error: reference to undefined field or method ‘Meth2’
R=golang-dev, rsc1
CC=golang-dev
https://golang.org/cl/4280072
bug325.go:13:10: error: invalid indirect of ‘unsafe.Pointer’
bug325.go:14:31: error: reference to field ‘foo’ in object which has no fields or methods
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4313050
bug274.go:23:3: error: missing statement after label
bug274.go:25:3: error: missing statement after label
bug274.go:28:3: error: label ‘L2’ defined and not used
R=rsc
CC=golang-dev
https://golang.org/cl/4273114
Change unsafe.Pointer to be its own kind of
type, instead of making it equivalent to *any.
The change complicates import and export
but avoids the need to find all the places that
operate on pointers but should not operate on
unsafe.Pointer.
Fixes#1566. (a different way)
Fixes#1582.
R=ken2
CC=golang-dev
https://golang.org/cl/4264050
Also: renamed fixedbugs/bug322.go to fixedbugs/bug323.go
because we already have a bugs/bug322.go and bug322.dir.
R=rsc
CC=golang-dev
https://golang.org/cl/4219044
The recent linker changes broke NaCl support
a month ago, and there are no known users of it.
The NaCl code can always be recovered from the
repository history.
R=adg, r
CC=golang-dev
https://golang.org/cl/3671042
cc: same
runtime: test cc alignment (required moving #define of offsetof to runtime.h)
fix bug260
Fixes#482.
Fixes#609.
R=ken2, r
CC=golang-dev
https://golang.org/cl/3563042
Specifically:
* lib/godoc:
- provide file set (FSet) argument to formatters where needed
* src/cmd:
- cgo, ebnflint, godoc, gofmt, goinstall: provide file set (fset) where needed
- godoc: remove local binary search with sort.Search (change by rsc),
extract file set for formatters
* src/pkg:
- exp/eval: remove embedded token.Position fields from nodes and replace
with named token.Pos fields; add corresponding Pos() accessor methods
- go/token: added file.Line(), changed signature of File.Position()
* test/fixedbugs/:
- bug206.go: change test to not rely on token.Pos details
* added various extra comments
* Runs all.bash
* gofmt formats all of src, misc w/o changes
* godoc runs
* performance:
- The new version of godoc consumes about the same space after indexing
has completed, but indexing is half the speed. Significant space savings
are expected from smaller ASTs, but since they are thrown away after a
file has been indexed, this is not visible anymore. The slower indexing
time is due to the much more expensive computation of line information.
However, with the new compressed position information, indexing can be
rewritten and simplified. Furthermore, computing the line info can be
done more efficiently.
New godoc, immediately after indexing completed (best of three runs):
PID COMMAND %CPU TIME #TH #PRTS #MREGS RPRVT RSHRD RSIZE VSIZE
44381 godoc 0.0% 0:38.00 4 19 149 145M 184K 148M 176M
2010/12/03 17:58:35 index updated (39.231s, 18505 unique words, 386387 spots)
2010/12/03 17:58:35 bytes=90858456 footprint=199182584
2010/12/03 17:58:36 bytes=47858568 footprint=167295224
Old godoc, immediately after indexing completed (best of three runs):
PID COMMAND %CPU TIME #TH #PRTS #MREGS RPRVT RSHRD RSIZE VSIZE
23167 godoc 0.0% 0:22.02 4 17 132 129M 184K 132M 173M
2010/12/03 14:51:32 index updated (24.892s, 18765 unique words, 393830 spots)
2010/12/03 14:51:32 bytes=66404528 footprint=163907832
2010/12/03 14:51:32 bytes=46282224 footprint=163907832
The different numbers for unique words/spots stem from the fact the the
two workspaces are not exactly identical. The new godoc maintains a large
file set data structure during indexing which (probably) is the reason
for the larger heap (90858456 vs 66404528) before garbage collection.
R=rsc, r
CC=golang-dev
https://golang.org/cl/3050041
bug299.go:16:2: error: expected field name
bug299.go:17:2: error: expected field name
bug299.go:18:3: error: expected field name
bug299.go:25:9: error: expected receiver name or type
bug299.go:26:10: error: expected receiver name or type
bug299.go:27:9: error: expected receiver name or type
R=rsc
CC=golang-dev
https://golang.org/cl/2150044
bug284.go:33: error: invalid type conversion
bug284.go:36: error: invalid type conversion (cannot use type A2 as type A1)
bug284.go:37: error: invalid type conversion
bug284.go:38: error: invalid type conversion (cannot use type A1 as type A2)
bug284.go:56: error: invalid type conversion
bug284.go:59: error: invalid type conversion (cannot use type S2 as type S1)
bug284.go:60: error: invalid type conversion
bug284.go:61: error: invalid type conversion (cannot use type S1 as type S2)
bug284.go:71: error: invalid type conversion
bug284.go:74: error: invalid type conversion (cannot use type P2 as type P1)
bug284.go:75: error: invalid type conversion
bug284.go:76: error: invalid type conversion (cannot use type P1 as type P2)
bug284.go:96: error: invalid type conversion
bug284.go:99: error: invalid type conversion (cannot use type Q2 as type Q1)
bug284.go:101: error: invalid type conversion (cannot use type Q1 as type Q2)
bug284.go:111: error: invalid type conversion (different parameter types)
bug284.go:114: error: invalid type conversion (different parameter types)
bug284.go:115: error: invalid type conversion (different parameter types)
bug284.go:116: error: invalid type conversion (different parameter types)
bug284.go:134: error: invalid type conversion (incompatible type for method 'f' (different result types))
bug284.go:137: error: invalid type conversion (incompatible type for method 'f' (different result types))
bug284.go:138: error: invalid type conversion (incompatible type for method 'f' (different result types))
bug284.go:139: error: invalid type conversion (incompatible type for method 'f' (different result types))
bug284.go:149: error: invalid type conversion
bug284.go:152: error: invalid type conversion (cannot use type L2 as type L1)
bug284.go:153: error: invalid type conversion
bug284.go:154: error: invalid type conversion (cannot use type L1 as type L2)
bug284.go:164: error: invalid type conversion
bug284.go:167: error: invalid type conversion (cannot use type L2 as type L1)
bug284.go:168: error: invalid type conversion
bug284.go:169: error: invalid type conversion (cannot use type L1 as type L2)
bug284.go:179: error: invalid type conversion
bug284.go:182: error: invalid type conversion (cannot use type C2 as type C1)
bug284.go:183: error: invalid type conversion
bug284.go:184: error: invalid type conversion (cannot use type C1 as type C2)
R=rsc
CC=golang-dev
https://golang.org/cl/2136041
bug278.go:18: error: invalid left hand side of assignment
bug278.go:19: error: array is not addressable
bug278.go:21: error: invalid left hand side of assignment
bug278.go:22: error: invalid left hand side of assignment
R=rsc
CC=golang-dev
https://golang.org/cl/2122042
The gccgo compiler is smart enough to not make something which
is not used. Use global variables to defeat this
optimization.
R=rsc
CC=golang-dev
https://golang.org/cl/2129041
Another case where gccgo and gc report similar but not
identical errors for a recursive interface.
bug251.go:11: error: invalid recursive interface
R=rsc
CC=golang-dev
https://golang.org/cl/2094041
This introduces GC_ERROR to mark an error only issued by the
gc compiler. GCCGO_ERROR already exists to mark errors only
issued by the gccgo compiler. Obviously these should be used
sparingly.
bug195.go:9: error: interface contains embedded non-interface
bug195.go:12: error: interface contains embedded non-interface
bug195.go:15: error: interface contains embedded non-interface
bug195.go:18: error: invalid recursive interface
bug195.go:22: error: invalid recursive interface
R=rsc
CC=golang-dev
https://golang.org/cl/2040043
Also, if the header is bad, exit with a non-zero status.
Other calls to Brdline in the tree, by category:
Reading symbol name from object file:
./cmd/5l/obj.c:486: name = Brdline(f, '\0');
./cmd/6l/obj.c:535: name = Brdline(f, '\0');
./cmd/8l/obj.c:564: name = Brdline(f, '\0');
./libmach/sym.c:292: cp = Brdline(bp, '\0');
Reading archive header line (fixed, short):
./cmd/gc/lex.c:287: if((a = Brdline(b, '\n')) == nil)
./cmd/gc/lex.c:303: if((p = Brdline(b, '\n')) == nil)
Reading object file header line (fixed, short):
./cmd/ld/lib.c:421: line = Brdline(f, '\n');
Reading undefined symbol list (unused code):
./cmd/ld/lib.c:773: while((l = Brdline(b, '\n')) != nil){
Implementing Brdstr:
./libbio/brdstr.c:36: p = Brdline(bp, delim);
The symbol names ones will cause a problem loudly if they
fail: they'll error out with symbol name too long. This means
that you can't define an enormous struct without giving the
type a name and then stick it in an interface, because the
type's symbol name will be too long for the object file.
Since this will be a loud failure instead of a silent one,
I'm willing to wait until it comes up in practice.
R=r
CC=golang-dev
https://golang.org/cl/1982041
remove the print statements.
This change is because of the port of gccgo to RTEMS.
These tests use the GCC DejaGNU framework. In some cases,
the tests need to be run on qemu where the status code
cannot be sent back to DejaGNU, so it prints the exit status
by putting a wrapper around the exit and abort calls.
This testcase closes the stdout, and hence prohibits DejaGNU
from knowing the status in such cases, and causes this test
to be wrongly declared as a failure.
R=rsc, iant
CC=golang-dev
https://golang.org/cl/1792042
* 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
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
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
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
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
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
