1
0
mirror of https://github.com/golang/go synced 2024-11-17 09:34:49 -07:00
Commit Graph

44206 Commits

Author SHA1 Message Date
Obeyda Djeffal
201cb046b7 time: quote original value in errors returned by ParseDuration
Quote original values passed as substring of ParseError.Message.
Improves the user experience of ParseDuration by making it
quote its original argument, for example:

   _, err := time.ParseDuration("for breakfast")
 will now produce an error, which when printed out is:

  time: invalid duration "for breakfast"
 instead of:

  time: invalid duration for breakfast

Adapt test cases for format.Parse and format.ParseDuration.

Fixes #38295

Change-Id: Ife322c8f3c859e1e4e8dd546d4cf0d519b4bfa81
Reviewed-on: https://go-review.googlesource.com/c/go/+/227878
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-04-14 00:01:14 +00:00
Ian Lance Taylor
5a706d163d Revert "time/tzdata: new package"
This reverts CL 224588.

Reason for revert: Test failing on secondary platforms.

Change-Id: Ic15fdc73a0d2b860e776733abb82c58809e13160
Reviewed-on: https://go-review.googlesource.com/c/go/+/228200
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-04-13 23:27:02 +00:00
Eric
240eac38e1 io: simplify Examples
- CopyN: 5 creates ambiguity with respect to whitespace and upperbound
- TeeReader less boilerplate and displays a common usage of it
- SectionReader_* all sections unified to 5:17 for clarity
- SectionReader_Seek uses io.Copy to stdout like other examples
- Seeker_Seek remove useless prints
- Pipe print reader like other examples

Updates #36417

Change-Id: Ibd01761d5a5786cdb1ea934f7a98f8302430c8a5
GitHub-Last-Rev: 4c17f9a8e3
GitHub-Pull-Request: golang/go#38379
Reviewed-on: https://go-review.googlesource.com/c/go/+/227868
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-04-13 22:48:16 +00:00
Cherry Zhang
ca017a6fb9 cmd/link: don't split container symbols when write blocks
We split the output into blocks and write them in parallel. The
block boundary is placed at symbol boundary. In the case of outer
symbols and sub symbols, currently we may split an outer symbol
into two blocks. This will be bad, as the two blocks will have
overlapping address range, since outer symbol and its sub symbols
occupies the same address range.

Make sure we place block boundary only at top-level symbol
boundaries.

Fix boringcrypto build.

Change-Id: I56811d3969c65c6be97672d8e1f1ea36b2447465
Reviewed-on: https://go-review.googlesource.com/c/go/+/227957
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
(cherry picked from commit 636fa3148f)
Reviewed-on: https://go-review.googlesource.com/c/go/+/228138
2020-04-13 22:38:56 +00:00
Cherry Zhang
1b15c7f102 cmd/compile: debug rewrite
If -d=ssa/PASS/debug=N is specified (N >= 2) for a rewrite pass
(e.g. lower), when a Value (or Block) is rewritten, print the
Value (or Block) before and after.

For #31915.
Updates #19013.

Change-Id: I80eadd44302ae736bc7daed0ef68529ab7a16776
Reviewed-on: https://go-review.googlesource.com/c/go/+/176718
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2020-04-13 21:56:15 +00:00
Ian Lance Taylor
6d63a74f8e time/tzdata: new package
Importing the time/tzdata package will embed a copy of the IANA
timezone database into the program. This will let the program work
correctly when the timezone database is not available on the system.
It will increase the size of the binary by about 800K.

You can also build a program with -tags timetzdata to embed the
timezone database in the program being built.

Fixes #21881
Fixes #38013
Fixes #38017

Change-Id: Iffddee72a8f46c95fee3bcde43c142d6899d9246
Reviewed-on: https://go-review.googlesource.com/c/go/+/224588
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
2020-04-13 21:01:56 +00:00
Katie Hockman
300ed43795 crypto/x509: fix test to prevent Gerrit keycheck errors
Change-Id: I9e6a11c7d8c61d0182467438b35eb6756db7aa89
Reviewed-on: https://go-review.googlesource.com/c/go/+/228198
Run-TryBot: Katie Hockman <katie@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2020-04-13 20:38:15 +00:00
Michael Pratt
ce52871948 runtime/pprof: clarify recursive inline heuristic
Following CL 226818, the compiler will allow inlining a single cycle in
an inline chain. Immediately-recursive functions are still disallowed,
which is what this heuristic refers to.

Add a regression test for this case.

Note that in addition to this check, if the compiler were to inline
multiple cycles via a loop (i.e., rather than appending duplicate code),
much more work would be required here to handle a single address
appearing in multiple different inline frames.

Updates #29737

Change-Id: I88de15cfbeabb9c04381e1c12cc36778623132a5
Reviewed-on: https://go-review.googlesource.com/c/go/+/227346
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2020-04-13 20:37:17 +00:00
Michael Pratt
796475ce1f runtime/pprof: try to use real stack in TestTryAdd
TestTryAdd is particularly brittle because it tests some real cases by
constructing fake sample stack frames. If those frames don't correctly
represent what the runtime would generate then they may fail to catch
regressions.

Instead, call runtime.Callers at the bottom of real function calls to
generate real frames as a base for truncation, etc in tests. Several of
these tests still have to fake parts of the frames to test the right
thing, but this is a bit less fragile.

This change is equivalent to the original
0dfb0513ec (golang.org/cl/227484), except
that the test skips if the test functions aren't inline (e.g., noopt
builders).

Change-Id: Ie9e32b5660cfe28a924f9cfcddcd887ea2effd66
Reviewed-on: https://go-review.googlesource.com/c/go/+/227922
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2020-04-13 20:37:04 +00:00
Katie Hockman
6f3a9515b6 crypto/x509: generate SubjectKeyId for CAs
Fixes #26676

Change-Id: I5bc91d4a8161bc6ff25effcf93f551f735fef115
Reviewed-on: https://go-review.googlesource.com/c/go/+/227098
Run-TryBot: Katie Hockman <katie@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2020-04-13 20:22:26 +00:00
Jonathan Amsterdam
7b5303d08a errors: add example for Is
Add ExampleIs to illustrate how errors.Is works.

Updates #31716.
Updates #38369.

Change-Id: I1b9a6667614635aa3a5ed8b2c108d8eb6f35748b
Reviewed-on: https://go-review.googlesource.com/c/go/+/228038
Reviewed-by: Damien Neil <dneil@google.com>
2020-04-13 20:04:56 +00:00
Tobias Klauser
82fcf749bd cmd/cgo: fix parameter name in godoc comment for badPointerTypedef
The parameter name is dt, not t. Also, line-wrap the godoc comment.

Change-Id: Ie012d2a5680525b88e244a3380d72bc4f61da8e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/228058
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matt Layher <mdlayher@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-04-13 18:08:35 +00:00
Cherry Zhang
68305f3fec [dev.link] cmd/link: remove symbol.FuncInfo
It is no longer used. The only remaining use is in generating
Plan 9 debug info, which is already not supported.

Change-Id: Ia023d6f2fa7d57b97ba861ce464e2eec8ac2d1f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/228142
Reviewed-by: Than McIntosh <thanm@google.com>
2020-04-13 17:48:49 +00:00
Cherry Zhang
14cf804aa0 [dev.link] cmd/link: stop populating lib/unit.Textp
lib.Textp was used for text address assignment and trampoline
insertion. Now that it has been converted to using the loader,
no need to populate lib.Textp.

Port the logic of canonicalizing dupok symbol's package to the
loader.

unit.Textp was used for DWARF generation, which has also been
converted to using the loader.

Change-Id: I22d4dd30a52a29dd5b1b7b795d43a19f6215e4ac
Reviewed-on: https://go-review.googlesource.com/c/go/+/228140
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2020-04-13 17:48:39 +00:00
Katie Hockman
614a713be5 crypto/tls: failed tls.Conn.Write returns a permanent error
Fixes #29971

Change-Id: I2f1653640c88fafe0ec17a75dcf41d5896c4cb8e
Reviewed-on: https://go-review.googlesource.com/c/go/+/227840
Run-TryBot: Katie Hockman <katie@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-04-13 17:38:02 +00:00
Bryan C. Mills
bd0623b4e7 Revert "cmd/internal/obj/ppc64: add support for pcalign 32 on ppc64x"
This reverts CL 227775.

Reason for revert: broke aix-ppc64 builder (https://build.golang.org/log/cf3b4f9fd09ee81f422a4b58488b9d0a2692c949).

Change-Id: I2095bb2aadb5a4064eb89ad353012503faf15709
Reviewed-on: https://go-review.googlesource.com/c/go/+/228143
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-04-13 17:35:14 +00:00
Joel Sing
d3d21d0a42 cmd/compile: update TestIntendedInlining for riscv64
Mark nextFreeFast as not inline, as it is too expensive to inline on riscv64.
Also remove riscv64 from non-atomic inline architectures, as we now have
atomic intrisics.

Updates #22239

Change-Id: I6e0e72c1192070e39f065bee486f48df4cc74b35
Reviewed-on: https://go-review.googlesource.com/c/go/+/227808
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-04-13 17:29:23 +00:00
Hana (Hyang-Ah) Kim
28a55d0123 cmd/trace: use the focustask mode for user task/region trace views
The taskid mode is based on the goroutine-oriented trace view,
which displays each goroutine as a separate row. This is good when
inspecting the interaction and timeline among related goroutines,
and the user region information (associated with each goroutine)
in detail, but when many goroutines are involved, this mode does
not scale.

The focustask mode is based on the default trace view with the
user task hierarchy at the top. Each row is a P and there are only
a handful number of Ps in most cases, so browsers can handle
this mode more gracefully. But, I had difficulty in displaying
the user region information (because a goroutine can start/stop/
migrate across Ps, and visualizing the stack of regions nicely
was complicated). It may be doable, but it's a work.

This CL surfaces the hidden focustask mode. Moreover, use it
as the default user task view mode. The taskid mode can be still
accessible through 'goroutine view' links.

Unlike taskid-based user annotation view that extends goroutine-based
trace view, the focustask view

Change-Id: Ib691a5e1dd14695fa70a0ae67bff62817025e8c3
Reviewed-on: https://go-review.googlesource.com/c/go/+/227921
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-04-13 17:18:58 +00:00
Cherry Zhang
2820bcede0 [dev.link] cmd/link: stop loading FuncInfo in LoadFull
As we have converted the pclntab generation, FuncInfo is not
needed after. No need to load it.

Change-Id: Idcfe4da44dfc94d8d44509d12179b354a2e295e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/228139
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2020-04-13 15:49:20 +00:00
Keith Randall
1e820a3432 cmd/compile: ensure ... rules have compatible aux and auxint types
Otherwise, just copying the aux and auxint fields doesn't make much sense.
(Although there's no bug - it just means it isn't typechecked correctly.)

Change-Id: I4e21ac67f0c7bfd04ed5af1713cd24bca08af092
Reviewed-on: https://go-review.googlesource.com/c/go/+/227962
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-04-13 15:41:40 +00:00
Keith Randall
dc9879e8fd cmd/compile: convert more AMD64.rules lines to typed aux mode
Change-Id: Idded860128b1a23680520d8c2b9f6d8620dcfcc7
Reviewed-on: https://go-review.googlesource.com/c/go/+/228077
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-04-13 15:41:13 +00:00
Than McIntosh
6aeaf4a0f4 [dev.link] cmd/link: fix funcfunctab crash with darwin + plugin
Fix a bug in findfunctab when building plugin on Darwin (this is
a regression introduced by CL 227842).

Change-Id: Ic610168e45a750c0a2f2b8611d5d9154e6c2622f
Reviewed-on: https://go-review.googlesource.com/c/go/+/228137
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
2020-04-13 13:21:48 +00:00
Tobias Klauser
916ecbc731 internal/cpu: unify HWCap/HWCap2 comments
HWCap and HWCap2 are no longer linknamed into package runtime. Also,
merge two sentences both starting with "These are..." and don't mention
any file name where archauxv is defined, as it become outdated if
support for a new $GOOS/$GOARCH combination is added. This is e.g.
already the case for arm64, where archauxv is also defined for
freebsd/arm64.

Change-Id: I9314a66633736b12e777869a832d8b79d442a6f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/228057
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-04-13 10:26:24 +00:00
Kevin Burke
2545323c63 cmd/link: fix spelling error
Change-Id: I6e730a99342563a97c3b1556893c8daaf5b6ec90
Reviewed-on: https://go-review.googlesource.com/c/go/+/228097
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-04-13 04:28:53 +00:00
chainhelen
7242428509 doc/debugging_with_gdb: fix the link of delve
The repository of delve has already switched from the personal
account github.com/derekparker/delve to the organization account
github.com/go-delve/delve. According to go-delve/delve#1456.

Change-Id: Ie64f72c2808a8aca5059a75e2c2f11d8691e66b3
GitHub-Last-Rev: f90120c3b3
GitHub-Pull-Request: golang/go#38387
Reviewed-on: https://go-review.googlesource.com/c/go/+/227999
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-04-13 04:26:57 +00:00
Joel Sing
c39439c53f cmd/compile: run TestLogOpt for riscv64 on amd64
Run TestLogOpt for riscv64 on amd64, as is done for other architectures.
This would have caught the test failure on riscv64 introduced in
47ade08141.

Change-Id: If29dea2ef383b087154d046728f6d1c96811f5a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/227806
Run-TryBot: Joel Sing <joel@sing.id.au>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2020-04-13 04:05:32 +00:00
Than McIntosh
e488ade6dd [dev.link] cmd/link/internal/loader: get rid of the AttrContainer loader method
Remove the loader's AttrContainer method, since it is no longer
needed. All of the code in the linker that used s.Attr.Container() is
now upstream of loadlibfull(), and the code in question now uses local
bitmaps to keep track of container text symbols as opposed to loader
methods.

Change-Id: Iae956d24bef2776e181c3b8208476dcb0b9a2916
Reviewed-on: https://go-review.googlesource.com/c/go/+/227959
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-04-13 00:37:19 +00:00
Than McIntosh
ad6fcf6993 [dev.link] cmd/link: convert inltree syms to anonymous in pclntab
The pclntab phase generates a series of "inltree.*" symbols with
inlining related pcdata; these symbols previously were given names and
enterered into the symbol lookup table, but there is no real reason to
do this, since they never need to be looked up when pcln generation is
done. Switch them over to anonymous symbols.

So as to insure that the later symtab phase picks them up correctly,
assign them a type of SGOFUNC instead of SRODATA, and change symtab to
look for this when assigning symbols to groups.

Change-Id: I38225dbb130ad7aea5d16f79cef3d8d388c61c2b
Reviewed-on: https://go-review.googlesource.com/c/go/+/227845
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-04-13 00:37:11 +00:00
Than McIntosh
2f9decbe95 [dev.link] cmd/link: convert findfunctab to loader APIs
Convert the linker's findfunctab phase to use the new loader APIs.

Change-Id: Ia980a85963fe2e7c554c212c0cc89208272264bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/227842
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-04-13 00:37:01 +00:00
Keith Randall
2f84caebe3 cmd/compile: rewrite some AMD64 rules to use typed aux fields
Surprisingly many rules needed no modification.

Use wrapper functions for aux like we did for auxint.
Simplifies things a bit.

Change-Id: I2e852e77f1585dcb306a976ab9335f1ac5b4a770
Reviewed-on: https://go-review.googlesource.com/c/go/+/227961
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Munday <mike.munday@ibm.com>
2020-04-12 23:46:56 +00:00
Keith Randall
7580937524 cmd/compile: move more generic rewrites to the typed version
Change-Id: I22d0644710d12c7efc509fd2a15789e2e073e6a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/227869
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2020-04-12 19:41:35 +00:00
Joel Sing
fb16f4b82e cmd/compile: log large copies on riscv64
Log large copies in the riscv64 compiler.

This was missed in 47ade08141, resulting in
the new test added to cmd/compile/internal/logopt failing on riscv64.

Change-Id: I6f763e86f42834148e911d16928f9fbabcfa4290
Reviewed-on: https://go-review.googlesource.com/c/go/+/227804
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-04-12 17:51:29 +00:00
Joel Sing
1eb66be1b9 cmd/compile: enable Sqrt as a compiler intrinsic on riscv64
Change-Id: I829a02ced9aa73b45079e67194186116b39504b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/227805
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-04-12 16:51:25 +00:00
Keith Randall
3afa74115b runtime/race: rebuild netbsd .syso
Fixes #14481
Fixes #37355

Change-Id: Idfceaf0e64d340b7304ce9562549a82ebfc27e3c
Reviewed-on: https://go-review.googlesource.com/c/go/+/227867
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
2020-04-12 15:37:29 +00:00
Cherry Zhang
636fa3148f [dev.link] cmd/link: don't split container symbols when write blocks
We split the output into blocks and write them in parallel. The
block boundary is placed at symbol boundary. In the case of outer
symbols and sub symbols, currently we may split an outer symbol
into two blocks. This will be bad, as the two blocks will have
overlapping address range, since outer symbol and its sub symbols
occupies the same address range.

Make sure we place block boundary only at top-level symbol
boundaries.

Fix boringcrypto build.

Change-Id: I56811d3969c65c6be97672d8e1f1ea36b2447465
Reviewed-on: https://go-review.googlesource.com/c/go/+/227957
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2020-04-12 04:28:04 +00:00
Emmanuel T Odeke
83bfe3b1bf doc/go1.15, net/url: document new method URL.Redacted
Adds an entry in the Go1.15 release notes, but also
adds an example test for URL.Redacted.

Follow-up of CL 207082.

Updates #37419

Change-Id: Ibf81989778907511a3a3a3e4a03d1802b5dd9762
Reviewed-on: https://go-review.googlesource.com/c/go/+/227997
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-04-12 00:19:41 +00:00
Nigel Tao
b10849fbb9 strconv: add comment re extFloat errorscale
Change-Id: I6f006ba72e1711ba2a24cd71552855ad88284eec
Reviewed-on: https://go-review.googlesource.com/c/go/+/227797
Reviewed-by: Rémy Oudompheng <remyoudompheng@gmail.com>
Reviewed-by: Nigel Tao <nigeltao@golang.org>
2020-04-11 23:08:34 +00:00
Josh Bleecher Snyder
64dcef3045 cmd/compile: guard against invalid phis in shortcircuit
In the review of CL 222923, Keith expressed concern
that we could end up with invalid phis.

We have some code to handle this, but on further reflection,
I think it might not handle some cases in which phis get moved.

I can't create a failing case, but guard against it nevertheless.

Change-Id: Ib3a07ac1d36a674c72dcb9cc9261ccfcb716b5a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/227697
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2020-04-11 17:33:35 +00:00
Cuong Manh Le
b78109e80e cmd/compile: correct comment for len check when make slice
CL 226737 optimizes len check when make slice. The comment that cap is
constrainted to [0, 2^31) is not quite true, it's 31 or 63 depends on
whether it's 32/64-bit systems.

Change-Id: I6f54e41827ffe4d0b67a44975da3ce07b2fabbad
Reviewed-on: https://go-review.googlesource.com/c/go/+/227803
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2020-04-11 16:20:57 +00:00
Keith Randall
a1b802bde7 cmd/compile: move some generic rules to strongly typed
Move a lot of the constant folding rules to use strongly
typed AuxInt fields.

We need more than a cast to convert AuxInt to, e.g., float32.
Make conversion functions for converting back and forth.

Change-Id: Ia3d95ee3583ee2179a10938e20210a7617358c88
Reviewed-on: https://go-review.googlesource.com/c/go/+/227866
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Giovanni Bajo <rasky@develer.com>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2020-04-11 15:49:38 +00:00
Keith Randall
fd18f3ba50 cmd/link: turn ASLR off for netbsd+race
The race detector can't handle ASLR (adddress space layout randomization).
On some platforms it can re-exec the binary with ASLR off. But not NetBSD.
For NetBSD we have to introduce a special ELF header note that tells
the kernel not to use ASLR.

This works fine for internal linking. For external linking it also works,
but "readelf -n" shows multiple notes in the resulting binary. Maybe the
last one wins? Not sure, but it appears to work.

Change-Id: I5fe6dd861e42a8293f64d0dacb166631ea670fcc
Reviewed-on: https://go-review.googlesource.com/c/go/+/227864
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
2020-04-11 15:42:09 +00:00
Alex Brainman
df15eaedd0 Revert "cmd/compile: make logopt test skip if cannot create scratch directory"
This reverts commit 98534812bd.

Reason for revert: The change does not really fixes issue #38251. CL 227497 is real fix.

Change-Id: I9f556005baf1de968f059fb8dad89dae05330aa6
Reviewed-on: https://go-review.googlesource.com/c/go/+/227802
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2020-04-11 13:49:21 +00:00
David Chase
06314b620d cmd/compile: add explanations to escape-analysis JSON/LSP logging
For 1.15.

From the test:

{"range":{"start":{"line":7,"character":13},"end":{...},"severity":3,"code":"leaks","source":"go compiler","message":"parameter z leaks to ~r2 with derefs=0","relatedInformation":[
	{"location":{"uri":"file://T/file.go","range":{"start":{"line":9,"character":13},"end":{...}},"message":"escflow:    flow: y = z:"},
	{"location":{"uri":"file://T/file.go","range":{"start":{"line":9,"character":13},"end":{...}},"message":"escflow:      from y = \u003cN\u003e (assign-pair)"},
	{"location":{"uri":"file://T/file.go","range":{"start":{"line":9,"character":13},"end":{...}},"message":"escflow:    flow: ~r1 = y:"},
	{"location":{"uri":"file://T/file.go","range":{"start":{"line":4,"character":11},"end":{...}},"message":"inlineLoc"},

	{"location":{"uri":"file://T/file.go","range":{"start":{"line":9,"character":13},"end":{...}},"message":"escflow:      from y.b (dot of pointer)"},
	{"location":{"uri":"file://T/file.go","range":{"start":{"line":4,"character":11},"end":{...}},"message":"inlineLoc"},

	{"location":{"uri":"file://T/file.go","range":{"start":{"line":9,"character":13},"end":{...}},"message":"escflow:      from \u0026y.b (address-of)"},
	{"location":{"uri":"file://T/file.go","range":{"start":{"line":4,"character":9},"end":...}},"message":"inlineLoc"},

	{"location":{"uri":"file://T/file.go","range":{"start":{"line":9,"character":13},"end":{...}},"message":"escflow:      from ~r1 = \u003cN\u003e (assign-pair)"},
	{"location":{"uri":"file://T/file.go","range":{"start":{"line":9,"character":3},"end":...}},"message":"escflow:    flow: ~r2 = ~r1:"},
	{"location":{"uri":"file://T/file.go","range":{"start":{"line":9,"character":3},"end":...}},"message":"escflow:      from return (*int)(~r1) (return)"}]}

Change-Id: Idf02438801f63e487c35a928cf5a0b6d3cc48674
Reviewed-on: https://go-review.googlesource.com/c/go/+/206658
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-04-11 02:04:15 +00:00
David Chase
fced302aa1 cmd/compile: change gc logging to report inline failure instead of success
I've been experimenting with this, success is the wrong thing to report
even though it seems to log much less.

Change-Id: I7c25a45d2f41e82b6c8dd8b0a56ba848c63fb21a
Reviewed-on: https://go-review.googlesource.com/c/go/+/223298
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-04-10 20:34:40 +00:00
Keith Randall
83e288f3db cmd/compile: prevent constant folding of +/- when result is NaN
Missed as part of CL 221790. It isn't just * and / that can make NaNs.

Update #36400
Fixes #38359

Change-Id: I3fa562f772fe03b510793a6dc0cf6189c0c3e652
Reviewed-on: https://go-review.googlesource.com/c/go/+/227860
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-04-10 19:32:41 +00:00
Cherry Zhang
84fb045763 [dev.link] cmd/link: fix aux symbol handling in Funcdata
If a Go symbol is cloned to external, we should preserve its Aux
symbols for FuncInfo, etc.. We already do this in
loader.FuncInfo, but not in FuncInfo.Funcdata. Do it in the
latter as well. In fact, since FuncInfo and Funcdata should use
the same set of auxs, just record the auxs and reuse.

Should fix PPC64 build.

Change-Id: Iab9020eaca15d98fe3bb41f50f0d5bdb4999e8c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/227848
Reviewed-by: Jeremy Faller <jeremy@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2020-04-10 19:04:34 +00:00
Lynn Boger
37470c0664 cmd/internal/obj/ppc64: add support for pcalign 32 on ppc64x
Previous PCALIGN support on ppc64x only accepted 8 and 16 byte
alignment since the default function alignment was 16. Now that
the function's alignment can be set to a larger value when needed,
PCALIGN can accept 32. When this happens then the function's
alignment will be changed to 32.

Test has been updated to recognized this new value.

Change-Id: If82c3cd50d7c686fcf8a9e819708b15660cdfa63
Reviewed-on: https://go-review.googlesource.com/c/go/+/227775
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-04-10 18:45:24 +00:00
Ian Lance Taylor
162f1bf7c2 test: add test case that gccgo failed to compile
Change-Id: I08ca5f77b7352fe3ced1fbe3d027d6f5b4828e35
Reviewed-on: https://go-review.googlesource.com/c/go/+/227783
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2020-04-10 18:42:07 +00:00
Cherry Zhang
53a2a6a7fc [dev.link] all: merge branch 'master' into dev.link
Clean merge.

Change-Id: Ic3634fa450e42635e2daafb53b7dedc6c954d072
2020-04-10 13:50:52 -04:00
Cherry Zhang
a1c29156ae [dev.link] cmd/internal/goobj2: remove "2"
Rename
Sym2 -> Sym
Reloc2 -> Reloc
Aux2 -> Aux

Also the Reader methods.

Change-Id: I49f29e2d1cb480f5309e01d7a74b5e0897d826fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/227900
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2020-04-10 17:38:25 +00:00