Made constant names more idiomatic,
moved some constants to function seedrand,
and found better name for _M.
Change-Id: I192172f398378bef486a5bbceb6ba86af48ebcc9
Reviewed-on: https://go-review.googlesource.com/107135
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The previous CL, 107197, overclarified the need for short subject
lines. Tweak the wording to be a guideline (keep it short) rather
than a limit (76 characters), which is more the Go way.
Also be strict about avoiding markup language.
Change-Id: I0da1132db8d86052647d96f1caac60289f2209ce
Reviewed-on: https://go-review.googlesource.com/107378
Reviewed-by: Mohit Bajoria <mohitbajo36@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
If both inputs are constant offsets from the same pointer then we
can evaluate NeqPtr and EqPtr at compile time. Triggers a few times
during all.bash. Removes a conditional branch in the following
code:
copy(x[1:], x[:])
This branch was recently added as an optimization in CL 94596. We
now skip the memmove if the pointers are equal. However, in the
above code we know at compile time that they are never equal.
Also, when the offset is variable, check if the offset is zero
rather than if the pointers are equal. For example:
copy(x[a:], x[:])
This would now skip the copy if a == 0, rather than if x + a == x.
Finally I've also added a rule to make IsNonNil true for pointers
to values on the stack. The nil check elimination pass will catch
these anyway, but eliminating them here might eliminate branches
earlier.
Change-Id: If72f436fef0a96ad0f4e296d3a1f8b6c3e712085
Reviewed-on: https://go-review.googlesource.com/106635
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Would've caught two regressions so far, and found two more.
Updates #24841
Updates #24845 (package net remains)
Change-Id: I57ad06eb54e04b8c99b5d2e7f24c77ad865224e8
Reviewed-on: https://go-review.googlesource.com/107300
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Use the vendored ValidTrailerHeader function from x/net/http/httpguts to
check Trailer headers according to RFC 7230. The previous implementation
only omitted illegal Trailer headers defined in RFC 2616.
This CL adds x/net/http/httpguts from CL 104042 (git rev a35a21de97)
Fixes#23908
Change-Id: Ib2329a384040494093c18e209db9b62aaf86e921
Reviewed-on: https://go-review.googlesource.com/104075
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
As suggested by Ian on the issue, just use past releases to avoid any
confusion regarding current and future releases.
Fixes#23891
Change-Id: Ie513cd3e15aa04822898be57f71976e6fe6bd816
Reviewed-on: https://go-review.googlesource.com/107078
Reviewed-by: Andrew Bonventre <andybons@golang.org>
Move the Issue16214 test in the fixedbugs_test.go file, and delete the
now empty asm_test.go file.
Change-Id: I2a0c72bd36f0359b7baf75b5d1ba647cc84feb46
Reviewed-on: https://go-review.googlesource.com/106836
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Giovanni Bajo <rasky@develer.com>
Fixes#24852
Change-Id: I71d0d7f75108bf4ad606733a45bb71baa66a4e91
Reviewed-on: https://go-review.googlesource.com/107197
Reviewed-by: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: Giovanni Bajo <rasky@develer.com>
Focus on "isfoo" funcs that take a *Node, and conver them to isFoo
methods instead. This makes for more idiomatic Go code, and also more
readable func names.
Found candidates with grep, and applied most changes with sed. The funcs
chosen were isgoconst, isnil, and isblank. All had the same signature,
func(*Node) bool.
While at it, camelCase the isliteral and iszero function names. Don't
move these to methods, as they are only used in the backend part of gc,
which might one day be split into a separate package.
Passes toolstash -cmp on std cmd.
Change-Id: I4df081b12d36c46c253167c8841c5a841f1c5a16
Reviewed-on: https://go-review.googlesource.com/105555
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This changes rawResponse to install a logger before
Serve()ing and makes the log output available to
tests.
Updates #24831
Updates CL 89275
Change-Id: I0fb636a35b05959ca9978d5d8552f38b7cf8e8b5
Reviewed-on: https://go-review.googlesource.com/106756
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
A switch statement without a tag requires case values to be bools, but
the parser does not enforce that, so AST-walking code needs to take
care.
Change-Id: I7d9abbb0324314e02a37813c2d2f6adb0d6af5e7
Reviewed-on: https://go-review.googlesource.com/107375
Reviewed-by: Rob Pike <r@golang.org>
While writing CL 107315, I went back and forth for the syntax used for
constraints of build environments in which the architecture did not
support varitants ("plan9/amd64" vs "plan9/amd64/"). I eventually
settled for the latter because the code required less heuristics
(think parsing "plan9/386" vs "386/sse2") but there were a few
leftovers in code and comments.
Change-Id: I9d9a008f3814f9a1642609650eb571e7f1a675cf
Reviewed-on: https://go-review.googlesource.com/107338
Run-TryBot: Giovanni Bajo <rasky@develer.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Not used anymore, all tests have been migrated to
the top-level testsuite.
Change-Id: I536e6c14f62153c01e4966ad41e1501b38494c7f
Reviewed-on: https://go-review.googlesource.com/107336
Run-TryBot: Giovanni Bajo <rasky@develer.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
After CL 104636 cpu.X86.HasAVX is set early enough that it can be used
in runtime·memclrNoHeapPointers. Add an offset to use in assembly and
replace the only occurence of support_avx2.
Change-Id: Icada62efeb3e24d71251d55623a8a8602364c9a8
Reviewed-on: https://go-review.googlesource.com/106595
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ilya Tocar <ilya.tocar@intel.com>
This CL makes the codegen testsuite automatically test all
architecture variants for architecture specified in tests. For
instance, if a test file specifies a "arm" test, it will be
automatically run on all GOARM variants (5,6,7), to increase
the coverage.
The CL also introduces a syntax to specify only a specific
variant (eg: "arm/7") in case the test makes sense only there.
The same syntax also allows to specify the operating system
in case it matters (eg: "plan9/386/sse2").
Fixes#24658
Change-Id: I2eba8b918f51bb6a77a8431a309f8b71af07ea22
Reviewed-on: https://go-review.googlesource.com/107315
Run-TryBot: Giovanni Bajo <rasky@develer.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
And remove it from asmtest. Next CL will remove the whole
asmtest infrastructure.
Change-Id: I5851bf7c617456d62a3c6cffacf70252df7b056b
Reviewed-on: https://go-review.googlesource.com/107335
Run-TryBot: Giovanni Bajo <rasky@develer.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
CL 106463 introduced what seems to trim the "go:" prefix in pramas
comments twice, so "//go:go:foo" would be handled, too.
So either the strings.TrimPrefix or the [3:]-slicing is not needed.
I opted to remove the [3:]-slicing.
Change-Id: I1325bbc08a9be9ae100c5a7775b0a23f9ed0a419
Reviewed-on: https://go-review.googlesource.com/107256
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
It was skipping dirs starting with ".", but it was missing the "_"
prefix and the "testdata" name. From "go help packages":
Directory and file names that begin with "." or "_" are ignored
by the go tool, as are directories named "testdata".
Before the change:
$ go doc z # using src/cmd/go/testdata/testvendor/src/q/z
package z // import "."
After the fix, it falls back to the current directory, as expected when
a single argument isn't found as a package in $GOPATH.
TestMain needs a small adjustment to keep the tests working, as now
their use of cmd/doc/testdata would normally not work.
Fixes#24462.
Change-Id: I1f5d6d1eba0fb59aff55db33b3b1147e300284ef
Reviewed-on: https://go-review.googlesource.com/106935
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
There are two flakes present on the dashboard for this test.
Change-Id: I4abec972586314fbafe7db5760b91afd7ae47fd3
Reviewed-on: https://go-review.googlesource.com/106980
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
RawRead assumes the callback will perform either (a) a blocking read
and always return true, (b) a blocking read with a SO_RCVTIMEO set
returning false on WSAETIMEDOUT, or (c) a non-blocking read
returning false on WSAEWOULDBLOCK. In the latter two cases, it uses
a 0-byte overlapped read for notifications from the IOCP runtime
when the socket becomes readable before trying again.
RawWrite assumes the callback will perform blocking write and will
always return true, and makes no effort to tie into the runtime loop.
Change-Id: Ib10074e9d502c040294f41a260e561e84208652f
Reviewed-on: https://go-review.googlesource.com/76391
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Windows process cannot run properly, if it only has
GOOS and GOARCH environment variables set. It needs
other environment variables. So adjust TestLarge and
TestNoRet to add GOOS and GOARCH to the existing
variables set instead of clearing environment.
Fixes#24855
Change-Id: I9fd9430d89031c3bacdbc6283450efaa4819e616
Reviewed-on: https://go-review.googlesource.com/107035
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
CL 92475 added WSAEMSGSIZE const to syscall package. But there
is already copy of WSAEMSGSIZE in internal/syscall/windows.
So delete syscall.WSAEMSGSIZE
Change-Id: I0b81fa5dcf846887a0cb27d8bbd7e250860627b5
Reviewed-on: https://go-review.googlesource.com/106956
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Since the tabwriter is flushed at every symbol,
it can be re-used with no impact on the output.
This cuts allocated space when objdump-ing
the compiler by almost 40%,
and enables further upcoming improvements.
It also speeds up objdump.
name old time/op new time/op delta
ObjdumpCompile 9.22s ± 3% 8.77s ± 3% -4.79% (p=0.000 n=10+9)
Change-Id: Ief114d6c2680a4e762b5f439d3ca8dc7a89b9b27
Reviewed-on: https://go-review.googlesource.com/106978
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
We sometimes generate code like this:
v473 = MOVQconst <uintptr> // constant..
v580 = MOVBstoreidx1 <mem> v1056 v473 v819 v491 // ..only used as an index
Rewrite indexed stores to non-indexed version, where possible.
This allows to eliminate const->register move, reducing codesize and lowering register pressure.
Change-Id: Id5fed801dffe3f1a80876b8d8bd43775a7c942b2
Reviewed-on: https://go-review.googlesource.com/105295
Run-TryBot: Ilya Tocar <ilya.tocar@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Currently, collecting a stack trace via runtime.Stack captures the stack for the
immediately running goroutines. This change extends those tracebacks to include
the tracebacks of their ancestors. This is done with a low memory cost and only
utilized when debug option tracebackancestors is set to a value greater than 0.
Resolves#22289
Change-Id: I7edacc62b2ee3bd278600c4a21052c351f313f3a
Reviewed-on: https://go-review.googlesource.com/70993
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
This commit adds the wasm architecture to the mime package.
Updates #18892
Change-Id: I0481057bd52e39d84b3d6f5140335e293eff38f3
Reviewed-on: https://go-review.googlesource.com/106998
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This cuts the allocated space while executing
go tool objdump -S `go tool -n compile`
by over 10%.
It also speeds it up slightly:
name old time/op new time/op delta
ObjdumpSCompiler 9.03s ± 1% 8.88s ± 1% -1.59% (p=0.000 n=20+20)
Updates #24725
Change-Id: Ic6ef8e273ede589334ab6e07099ac2e5bdf990c9
Reviewed-on: https://go-review.googlesource.com/106798
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
golang.org/cl/102697 attempted to fix the span presentation by utilizing
the position of the span in the span slices of a task. But it is
not complete either.
First, id=0 is omitted in json encoding and the trace viewer silently
drops entries with the missing id field, so we must avoid zero-value id.
Second, it is possible that a goroutine handles multiple tasks. Then,
id collisions will happen.
This takes a simpler approach - have a counter that increments for every
emitSpan call, and use the value as the id value.
Change-Id: Idaa9505634acf6d327c6f00af32d8260955b85e1
Reviewed-on: https://go-review.googlesource.com/106755
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The current assembler will report error when the negative offset is in
the range of [-256, 0) and is not the multiples of 4/8.
The fix introduces C_NSAUTO_8, C_NSAUTO_4 and C_NAUTO4K. C_NPAUTO
includes C_NSAUTO_8 instead of C_NSAUTO, C_NAUTO4K includes C_NSAUTO_8,
C_NSAUTO_4 and C_NSAUTO. So that assembler will encode the negative offset
that is greater than -4095 and is not the multiples of 4/8 as two instructions.
Add the test cases.
Fixed#24471
Change-Id: I42f34e3b8a9fc52c9e8b41504294271aafade639
Reviewed-on: https://go-review.googlesource.com/102635
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
The escape analysis models "loop depth". If the address of an
expression is assigned to something defined at a lower (outer)
loop depth, the escape analysis decides it escapes. However, it
uses the loop depth of the address operator instead of where
the RHS is defined. This causes an unnecessary escape if there is
an assignment inside a loop but the RHS is defined outside the
loop. This CL propagates the loop depth.
Fixes#24730.
Change-Id: I5ff1530688bdfd90561a7b39c8be9bfc009a9dae
Reviewed-on: https://go-review.googlesource.com/105257
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
This is more or less implied by the spec language on initialization,
but restate it for clarity.
Fixes#23112
Change-Id: Ibe5385acafe4eac38823de98a025cd37f7a77d3b
Reviewed-on: https://go-review.googlesource.com/103399
Reviewed-by: Austin Clements <austin@google.com>
