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Cuong Manh Le 638c9aad5f cmd/compile,sync: make accessing address of zero offset struct field inline cost 0 
Accessing the address of something often needs the same (or even less)
number of instructions as accessing the content of the thing. That would
help us rolling back the hack of CL 429766 to lower sync atomic types
inline cost.

Compiled objects size increase a bit:

file      before    after     Δ       %
addr2line 3729827   3733958   +4131   +0.111%
api       5457224   5456267   -957    -0.018%
asm       4806486   4808993   +2507   +0.052%
buildid   2480271   2480562   +291    +0.012%
cgo       4593496   4593947   +451    +0.010%
compile   23906958  23910086  +3128   +0.013%
cover     4680870   4681461   +591    +0.013%
dist      3341333   3341692   +359    +0.011%
doc       3879927   3880409   +482    +0.012%
fix       3298081   3298979   +898    +0.027%
link      6500098   6499873   -225    -0.003%
nm        3654362   3656997   +2635   +0.072%
objdump   4108300   4108671   +371    +0.009%
pack      2255445   2256391   +946    +0.042%
pprof     14364561  14379475  +14914  +0.104%
test2json 2550942   2555333   +4391   +0.172%
trace     13573199  13578409  +5210   +0.038%
vet       7430923   7430094   -829    -0.011%
total     114612303 114651597 +39294  +0.034%

file                                                                     before    after     Δ       %
archive/tar.a                                                            905032    905560    +528    +0.058%
archive/zip.a                                                            853464    853916    +452    +0.053%
cmd/asm/internal/lex.a                                                   359388    367418    +8030   +2.234%
cmd/compile/internal/importer.a                                          947206    947734    +528    +0.056%
cmd/compile/internal/inline.a                                            563390    566828    +3438   +0.610%
cmd/compile/internal/types2.a                                            5761990   5764274   +2284   +0.040%
cmd/go/internal/cfg.a                                                    234892    235342    +450    +0.192%
cmd/go/internal/envcmd.a                                                 257166    257694    +528    +0.205%
cmd/go/internal/fix.a                                                    93522     94052     +530    +0.567%
cmd/go/internal/generate.a                                               201308    201838    +530    +0.263%
cmd/go/internal/get.a                                                    207862    208390    +528    +0.254%
cmd/go/internal/imports.a                                                230266    230794    +528    +0.229%
cmd/go/internal/list.a                                                   385044    386632    +1588   +0.412%
cmd/go/internal/load.a                                                   1164508   1165566   +1058   +0.091%
cmd/go/internal/modcmd.a                                                 627582    629168    +1586   +0.253%
cmd/go/internal/modfetch/codehost.a                                      1031962   1032490   +528    +0.051%
cmd/go/internal/modfetch.a                                               1289294   1289822   +528    +0.041%
cmd/go/internal/modget.a                                                 674566    675624    +1058   +0.157%
cmd/go/internal/modindex.a                                               935598    936576    +978    +0.105%
cmd/go/internal/modload.a                                                2640784   2642058   +1274   +0.048%
cmd/go/internal/par.a                                                    135858    136476    +618    +0.455%
cmd/go/internal/run.a                                                    127158    127688    +530    +0.417%
cmd/go/internal/search.a                                                 242918    243446    +528    +0.217%
cmd/go/internal/trace.a                                                  113216    113188    -28     -0.025%
cmd/go/internal/vcs.a                                                    517280    517810    +530    +0.102%
cmd/go/internal/work.a                                                   2389522   2390580   +1058   +0.044%
cmd/go/internal/workcmd.a                                                311118    311452    +334    +0.107%
cmd/vendor/github.com/google/pprof/internal/driver.a                     1714950   1715478   +528    +0.031%
cmd/vendor/golang.org/x/mod/sumdb.a                                      453840    454290    +450    +0.099%
cmd/vendor/golang.org/x/tools/go/analysis/internal/analysisflags.a       326162    326610    +448    +0.137%
cmd/vendor/golang.org/x/tools/go/analysis/internal/facts.a               302476    303006    +530    +0.175%
cmd/vendor/golang.org/x/tools/go/analysis/passes/asmdecl.a               366580    367030    +450    +0.123%
cmd/vendor/golang.org/x/tools/go/analysis/passes/assign.a                129556    130006    +450    +0.347%
cmd/vendor/golang.org/x/tools/go/analysis/passes/atomic.a                133466    133916    +450    +0.337%
cmd/vendor/golang.org/x/tools/go/analysis/passes/bools.a                 193558    194006    +448    +0.231%
cmd/vendor/golang.org/x/tools/go/analysis/passes/buildtag.a              177984    178434    +450    +0.253%
cmd/vendor/golang.org/x/tools/go/analysis/passes/cgocall.a               221226    221674    +448    +0.203%
cmd/vendor/golang.org/x/tools/go/analysis/passes/composite.a             168572    169022    +450    +0.267%
cmd/vendor/golang.org/x/tools/go/analysis/passes/copylock.a              227040    227490    +450    +0.198%
cmd/vendor/golang.org/x/tools/go/analysis/passes/ctrlflow.a              204650    205098    +448    +0.219%
cmd/vendor/golang.org/x/tools/go/analysis/passes/errorsas.a              138020    138468    +448    +0.325%
cmd/vendor/golang.org/x/tools/go/analysis/passes/framepointer.a          119030    119480    +450    +0.378%
cmd/vendor/golang.org/x/tools/go/analysis/passes/httpresponse.a          165006    165454    +448    +0.272%
cmd/vendor/golang.org/x/tools/go/analysis/passes/ifaceassert.a           180850    181300    +450    +0.249%
cmd/vendor/golang.org/x/tools/go/analysis/passes/inspect.a               103876    104326    +450    +0.433%
cmd/vendor/golang.org/x/tools/go/analysis/passes/internal/analysisutil.a 116070    116516    +446    +0.384%
cmd/vendor/golang.org/x/tools/go/analysis/passes/loopclosure.a           153068    153518    +450    +0.294%
cmd/vendor/golang.org/x/tools/go/analysis/passes/lostcancel.a            244936    245384    +448    +0.183%
cmd/vendor/golang.org/x/tools/go/analysis/passes/nilfunc.a               135720    136168    +448    +0.330%
cmd/vendor/golang.org/x/tools/go/analysis/passes/printf.a                527134    527584    +450    +0.085%
cmd/vendor/golang.org/x/tools/go/analysis/passes/shift.a                 172026    172476    +450    +0.262%
cmd/vendor/golang.org/x/tools/go/analysis/passes/sigchanyzer.a           151690    152138    +448    +0.295%
cmd/vendor/golang.org/x/tools/go/analysis/passes/stdmethods.a            187494    187944    +450    +0.240%
cmd/vendor/golang.org/x/tools/go/analysis/passes/stringintconv.a         164752    165200    +448    +0.272%
cmd/vendor/golang.org/x/tools/go/analysis/passes/structtag.a             200144    200594    +450    +0.225%
cmd/vendor/golang.org/x/tools/go/analysis/passes/testinggoroutine.a      161146    161596    +450    +0.279%
cmd/vendor/golang.org/x/tools/go/analysis/passes/tests.a                 270252    270702    +450    +0.167%
cmd/vendor/golang.org/x/tools/go/analysis/passes/unmarshal.a             130646    131094    +448    +0.343%
cmd/vendor/golang.org/x/tools/go/analysis/passes/unreachable.a           182130    182580    +450    +0.247%
cmd/vendor/golang.org/x/tools/go/analysis/passes/unsafeptr.a             153646    154094    +448    +0.292%
cmd/vendor/golang.org/x/tools/go/analysis/passes/unusedresult.a          179800    180248    +448    +0.249%
cmd/vendor/golang.org/x/tools/go/analysis/unitchecker.a                  303838    304286    +448    +0.147%
cmd/vendor/golang.org/x/tools/go/analysis.a                              217930    218380    +450    +0.206%
cmd/vendor/golang.org/x/tools/go/ast/astutil.a                           539428    539874    +446    +0.083%
cmd/vendor/golang.org/x/tools/go/cfg.a                                   286820    287270    +450    +0.157%
cmd/vendor/golang.org/x/tools/go/types/objectpath.a                      236144    236674    +530    +0.224%
cmd/vendor/golang.org/x/tools/go/types/typeutil.a                        412728    413176    +448    +0.109%
cmd/vendor/golang.org/x/tools/internal/analysisinternal.a                223256    223704    +448    +0.201%
cmd/vendor/golang.org/x/tools/internal/typeparams.a                      419498    419946    +448    +0.107%
context.a                                                                210000    209972    -28     -0.013%
crypto/internal/boring/bcache.a                                          8652      8568      -84     -0.971%
crypto/tls.a                                                             3295282   3295202   -80     -0.002%
database/sql.a                                                           1365892   1365762   -130    -0.010%
encoding/base64.a                                                        131572    136228    +4656   +3.539%
encoding/binary.a                                                        452546    453076    +530    +0.117%
encoding/gob.a                                                           1690728   1691672   +944    +0.056%
encoding/json.a                                                          1198834   1199276   +442    +0.037%
encoding/xml.a                                                           1035784   1036314   +530    +0.051%
expvar.a                                                                 285282    285678    +396    +0.139%
go/ast.a                                                                 1175212   1175662   +450    +0.038%
go/build.a                                                               657802    658252    +450    +0.068%
go/doc.a                                                                 808002    808452    +450    +0.056%
go/format.a                                                              101378    101824    +446    +0.440%
go/importer.a                                                            101816    102266    +450    +0.442%
go/internal/gccgoimporter.a                                              593828    594358    +530    +0.089%
go/internal/gcimporter.a                                                 974178    974626    +448    +0.046%
go/internal/srcimporter.a                                                196600    197050    +450    +0.229%
go/parser.a                                                              1152502   1152946   +444    +0.039%
go/printer.a                                                             910744    911194    +450    +0.049%
go/token.a                                                               299624    299768    +144    +0.048%
go/types.a                                                               5763222   5766118   +2896   +0.050%
hash/crc32.a                                                             128130    128098    -32     -0.025%
internal/fuzz.a                                                          1058644   1059174   +530    +0.050%
internal/poll.a                                                          660412    660382    -30     -0.005%
internal/testenv.a                                                       212792    213320    +528    +0.248%
log/syslog.a                                                             128718    128654    -64     -0.050%
log.a                                                                    157330    157274    -56     -0.036%
mime.a                                                                   383058    383588    +530    +0.138%
net/http/httptest.a                                                      430550    431000    +450    +0.105%
net/http/pprof.a                                                         306918    307448    +530    +0.173%
net/http.a                                                               7413852   7414074   +222    +0.003%
net/internal/socktest.a                                                  258934    258900    -34     -0.013%
net/rpc/jsonrpc.a                                                        173158    172962    -196    -0.113%
net/rpc.a                                                                634464    634914    +450    +0.071%
net.a                                                                    3539574   3541348   +1774   +0.050%
os.a                                                                     891416    891390    -26     -0.003%
reflect.a                                                                3956224   3956666   +442    +0.011%
runtime/cgo.a                                                            187406    187852    +446    +0.238%
runtime/trace.a                                                          85720     85616     -104    -0.121%
runtime.a                                                                9357520   9371302   +13782  +0.147%
sync/atomic.a                                                            232512    232376    -136    -0.058%
sync.a                                                                   353112    355068    +1956   +0.554%
syscall.a                                                                1660308   1660222   -86     -0.005%
testing.a                                                                1399348   1399198   -150    -0.011%
text/template.a                                                          1384750   1384726   -24     -0.002%
total                                                                    265209524 265294628 +85104  +0.032%

Change-Id: I21114dcddeb4fc2c56e781ea2f6e732fe3da2b01
Reviewed-on: https://go-review.googlesource.com/c/go/+/431095
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2022-09-19 02:45:26 +00:00
.github .github: update issue label for pkgsite-removal 2022-09-07 16:00:20 +00:00
api syscall: remove FreeBSD 11 and below 64bit inode compatibility shims 2022-09-16 01:17:28 +00:00
doc spec: describe slice-to-array conversions 2022-09-08 16:37:47 +00:00
lib/time lib/time, time/tzdata: update to 2022b 2022-08-11 20:03:19 +00:00
misc misc: use strings.Builder 2022-09-06 15:44:25 +00:00
src cmd/compile,sync: make accessing address of zero offset struct field inline cost 0 2022-09-19 02:45:26 +00:00
test cmd/compile: resolve known outcomes for SLTI/SLTIU on riscv64 2022-09-17 17:17:52 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
PATENTS
README.md README.md: update wiki link 2022-04-26 16:21:18 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00

README.md

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