cmd/compile: use shorter MOVs for clears of 9, 10, 11 and 12 bytes
Instead of using two MOVQ, use a smaller MOV(B|W|L) for the remainder.
compilecmp:
vendor/golang.org/x/net/dns/dnsmessage
vendor/golang.org/x/net/dns/dnsmessage.(*SRVResource).GoString 1263 -> 1231 (-2.53%)
vendor/golang.org/x/net/dns/dnsmessage.(*OpCode).GoString 285 -> 279 (-2.11%)
vendor/golang.org/x/net/dns/dnsmessage.(*MXResource).GoString 603 -> 581 (-3.65%)
vendor/golang.org/x/net/dns/dnsmessage.(*Option).GoString 485 -> 478 (-1.44%)
os/signal
os/signal.cancel.func1 378 -> 346 (-8.47%)
fmt
fmt.newPrinter 145 -> 138 (-4.83%)
fmt.(*pp).catchPanic 1369 -> 1357 (-0.88%)
fmt.(*fmt).clearflags 17 -> 13 (-23.53%)
fmt.(*fmt).init 85 -> 81 (-4.71%)
vendor/golang.org/x/crypto/chacha20poly1305
vendor/golang.org/x/crypto/chacha20poly1305.(*xchacha20poly1305).Seal 527 -> 526 (-0.19%)
cmd/vendor/golang.org/x/sys/unix
cmd/vendor/golang.org/x/sys/unix.(*TIPCSocketAddr).tipcAddr 88 -> 86 (-2.27%)
cmd/vendor/golang.org/x/sys/unix.(*TIPCServiceRange).tipcAddr 95 -> 93 (-2.11%)
cmd/vendor/golang.org/x/sys/unix.(*TIPCServiceName).tipcAddr 95 -> 93 (-2.11%)
fmt [cmd/compile]
fmt.(*fmt).clearflags 17 -> 13 (-23.53%)
fmt.newPrinter 304 -> 298 (-1.97%)
fmt.(*pp).catchPanic 1369 -> 1357 (-0.88%)
fmt.Fprint 536 -> 535 (-0.19%)
fmt.Sprintf 5009 -> 4945 (-1.28%)
fmt.(*fmt).init 85 -> 81 (-4.71%)
net/http
net/http.http2FrameHeader.Header 89 -> 88 (-1.12%)
net/http.http2HeadersFrame.Header 95 -> 94 (-1.05%)
net/http.http2RSTStreamFrame.Header 120 -> 119 (-0.83%)
net/http.http2WindowUpdateFrame.Header 120 -> 119 (-0.83%)
net/http.http2Frame.Header 181 -> 179 (-1.10%)
net/http.http2PingFrame.Header 95 -> 94 (-1.05%)
net/http.(*http2FrameHeader).Header 119 -> 113 (-5.04%)
net/http.http2GoAwayFrame.Header 95 -> 94 (-1.05%)
net/http.http2MetaHeadersFrame.Header 133 -> 132 (-0.75%)
cmd/vendor/golang.org/x/term
cmd/vendor/golang.org/x/term.(*Terminal).clearLineToRight 338 -> 337 (-0.30%)
cmd/link/internal/ld
cmd/link/internal/ld.appendString 424 -> 421 (-0.71%)
cmd/compile/internal/reflectdata [cmd/compile]
cmd/compile/internal/reflectdata.dnameData 1574 -> 1561 (-0.83%)
file before after Δ %
vendor/golang.org/x/net/dns/dnsmessage.s 74536 74469 -67 -0.090%
os/signal.s 7192 7160 -32 -0.445%
fmt.s 70428 70401 -27 -0.038%
vendor/golang.org/x/crypto/chacha20poly1305.s 7103 7102 -1 -0.014%
cmd/vendor/golang.org/x/sys/unix.s 118033 118027 -6 -0.005%
fmt [cmd/compile].s 83679 83588 -91 -0.109%
net/http.s 536737 536722 -15 -0.003%
cmd/vendor/golang.org/x/term.s 23505 23504 -1 -0.004%
cmd/link/internal/ld.s 571046 571043 -3 -0.001%
cmd/compile/internal/reflectdata [cmd/compile].s 72645 72632 -13 -0.018%
cmd/compile/internal/ssa.s
3193233 3193841 +608 +0.019%
cmd/compile/internal/ssa [cmd/compile].s
3362126 3362734 +608 +0.018%
total
30810158 30811118 +960 +0.003%
Change-Id: Iade49c590027c0a09a6e546a3b94d2dccd5b7116
Reviewed-on: https://go-review.googlesource.com/c/go/+/521455
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Jakub Ciolek <jakub@ciolek.dev>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>