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This lets the compiler inline functions that contain a linknamed symbol. Previously, the net/http tests would fail to build with -l=4 because the compiler inlined functions that call net.byteIndex (which is linknamed to strings.IndexByte). This changes only the compiler-specific export data, so we don't need to bump the export format version number. The following benchmark results show how the size of package export data is impacted by this change. These benchmarks were created by compiling the go1 benchmark and running `go tool pack x` to extract the export data from the resulting .a files. name old bytes new bytes delta bufio 3.48k ± 0% 3.58k ± 0% +2.90% bytes 5.05k ± 0% 5.16k ± 0% +2.16% compress/bzip2 2.61k ± 0% 2.68k ± 0% +2.68% compress/flate 5.07k ± 0% 5.14k ± 0% +1.40% compress/gzip 8.26k ± 0% 8.40k ± 0% +1.70% container/list 1.69k ± 0% 1.76k ± 0% +4.07% context 3.93k ± 0% 4.01k ± 0% +1.86% crypto 1.03k ± 0% 1.03k ± 0% +0.39% crypto/aes 475 ± 0% 475 ± 0% +0.00% crypto/cipher 1.18k ± 0% 1.18k ± 0% +0.00% crypto/des 502 ± 0% 502 ± 0% +0.00% crypto/dsa 5.71k ± 0% 5.77k ± 0% +1.16% crypto/ecdsa 6.67k ± 0% 6.75k ± 0% +1.08% crypto/elliptic 6.28k ± 0% 6.35k ± 0% +1.07% crypto/hmac 464 ± 0% 464 ± 0% +0.00% crypto/internal/cipherhw 313 ± 0% 313 ± 0% +0.00% crypto/md5 691 ± 0% 695 ± 0% +0.58% crypto/rand 5.37k ± 0% 5.43k ± 0% +1.23% crypto/rc4 512 ± 0% 512 ± 0% +0.00% crypto/rsa 7.05k ± 0% 7.12k ± 0% +1.05% crypto/sha1 756 ± 0% 760 ± 0% +0.53% crypto/sha256 523 ± 0% 523 ± 0% +0.00% crypto/sha512 662 ± 0% 662 ± 0% +0.00% crypto/subtle 835 ± 0% 873 ± 0% +4.55% crypto/tls 28.1k ± 0% 28.5k ± 0% +1.30% crypto/x509 17.7k ± 0% 17.9k ± 0% +1.04% crypto/x509/pkix 9.75k ± 0% 9.90k ± 0% +1.50% encoding 473 ± 0% 473 ± 0% +0.00% encoding/asn1 1.41k ± 0% 1.42k ± 0% +1.00% encoding/base64 1.67k ± 0% 1.69k ± 0% +0.90% encoding/binary 2.65k ± 0% 2.76k ± 0% +4.07% encoding/gob 13.3k ± 0% 13.5k ± 0% +1.65% encoding/hex 854 ± 0% 857 ± 0% +0.35% encoding/json 11.9k ± 0% 12.1k ± 0% +1.71% encoding/pem 484 ± 0% 484 ± 0% +0.00% errors 360 ± 0% 361 ± 0% +0.28% flag 7.32k ± 0% 7.42k ± 0% +1.48% fmt 1.42k ± 0% 1.42k ± 0% +0.00% go/ast 15.7k ± 0% 15.8k ± 0% +1.07% go/parser 7.48k ± 0% 7.59k ± 0% +1.55% go/scanner 3.88k ± 0% 3.94k ± 0% +1.39% go/token 3.51k ± 0% 3.53k ± 0% +0.60% hash 507 ± 0% 507 ± 0% +0.00% hash/crc32 685 ± 0% 685 ± 0% +0.00% internal/nettrace 474 ± 0% 474 ± 0% +0.00% internal/pprof/profile 8.29k ± 0% 8.36k ± 0% +0.89% internal/race 511 ± 0% 511 ± 0% +0.00% internal/singleflight 966 ± 0% 969 ± 0% +0.31% internal/syscall/unix 427 ± 0% 427 ± 0% +0.00% io 3.48k ± 0% 3.52k ± 0% +1.15% io/ioutil 5.30k ± 0% 5.38k ± 0% +1.53% log 4.46k ± 0% 4.53k ± 0% +1.59% math 3.72k ± 0% 3.75k ± 0% +0.75% math/big 8.91k ± 0% 9.01k ± 0% +1.15% math/rand 1.29k ± 0% 1.30k ± 0% +0.46% mime 2.59k ± 0% 2.63k ± 0% +1.55% mime/multipart 3.61k ± 0% 3.68k ± 0% +1.80% mime/quotedprintable 2.20k ± 0% 2.25k ± 0% +2.50% net 21.1k ± 0% 21.3k ± 0% +1.10% net/http 56.6k ± 0% 57.3k ± 0% +1.28% net/http/httptest 33.6k ± 0% 34.1k ± 0% +1.38% net/http/httptrace 14.4k ± 0% 14.5k ± 0% +1.29% net/http/internal 2.70k ± 0% 2.77k ± 0% +2.59% net/textproto 4.51k ± 0% 4.60k ± 0% +1.82% net/url 1.71k ± 0% 1.73k ± 0% +1.41% os 11.3k ± 0% 11.4k ± 0% +1.36% path 587 ± 0% 589 ± 0% +0.34% path/filepath 4.46k ± 0% 4.55k ± 0% +1.88% reflect 6.39k ± 0% 6.43k ± 0% +0.72% regexp 5.82k ± 0% 5.88k ± 0% +1.12% regexp/syntax 3.22k ± 0% 3.24k ± 0% +0.62% runtime 12.9k ± 0% 13.2k ± 0% +1.94% runtime/cgo 229 ± 0% 229 ± 0% +0.00% runtime/debug 3.66k ± 0% 3.72k ± 0% +1.86% runtime/internal/atomic 905 ± 0% 905 ± 0% +0.00% runtime/internal/sys 2.00k ± 0% 2.05k ± 0% +2.55% runtime/pprof 4.16k ± 0% 4.23k ± 0% +1.66% runtime/pprof/internal/protopprof 11.5k ± 0% 11.7k ± 0% +1.27% runtime/trace 354 ± 0% 354 ± 0% +0.00% sort 1.63k ± 0% 1.68k ± 0% +2.94% strconv 1.84k ± 0% 1.85k ± 0% +0.54% strings 3.87k ± 0% 3.97k ± 0% +2.48% sync 1.51k ± 0% 1.52k ± 0% +0.33% sync/atomic 1.58k ± 0% 1.60k ± 0% +1.27% syscall 53.2k ± 0% 53.3k ± 0% +0.20% testing 8.14k ± 0% 8.26k ± 0% +1.49% testing/internal/testdeps 597 ± 0% 598 ± 0% +0.17% text/tabwriter 3.09k ± 0% 3.14k ± 0% +1.85% text/template 15.4k ± 0% 15.7k ± 0% +1.89% text/template/parse 8.90k ± 0% 9.12k ± 0% +2.46% time 5.75k ± 0% 5.86k ± 0% +1.86% unicode 4.62k ± 0% 4.62k ± 0% +0.07% unicode/utf16 693 ± 0% 706 ± 0% +1.88% unicode/utf8 1.05k ± 0% 1.07k ± 0% +1.14% vendor/golang_org/x/crypto/chacha20poly1305 1.25k ± 0% 1.26k ± 0% +0.64% vendor/golang_org/x/crypto/curve25519 392 ± 0% 392 ± 0% +0.00% vendor/golang_org/x/crypto/poly1305 426 ± 0% 426 ± 0% +0.00% vendor/golang_org/x/net/http2/hpack 4.19k ± 0% 4.26k ± 0% +1.69% vendor/golang_org/x/net/idna 355 ± 0% 355 ± 0% +0.00% vendor/golang_org/x/net/lex/httplex 609 ± 0% 615 ± 0% +0.99% vendor/golang_org/x/text/transform 1.31k ± 0% 1.31k ± 0% +0.08% vendor/golang_org/x/text/unicode/norm 5.78k ± 0% 5.90k ± 0% +2.06% vendor/golang_org/x/text/width 1.24k ± 0% 1.24k ± 0% +0.16% [Geo mean] 2.49k 2.52k +1.10% Fixes #18167. Change-Id: Ia5b7e70adc9652c7ee9954ca2efc1c59fa79be2b Reviewed-on: https://go-review.googlesource.com/33911 Run-TryBot: David Lazar <lazard@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org> Reviewed-by: David Chase <drchase@google.com> |
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