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Just the low-hanging fruit; code that was either never used, or its last
use was removed a while ago.
Change-Id: Ic7f90aeee3e6daf7edc16cde3c0a767d67e617ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/192618
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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I noted in CL 38327 that the SSA test API felt a bit
clunky after the ssa.Func/ssa.Cache/ssa.Config refactoring,
and promised to clean it up once the dust settled.
The dust has settled.
Along the way, this CL fixes a potential latent bug,
in which the amd64 test context was used for all dummy Syslook calls.
The lone SSA test using the s390x context did not depend on the
Syslook context being correct, so the bug did not arise in practice.
Change-Id: If964251d1807976073ad7f47da0b1f1f77c58413
Reviewed-on: https://go-review.googlesource.com/38346
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Change-Id: Iae41e14ee55eb4068fcb2189a77b345a7c5468b4
Reviewed-on: https://go-review.googlesource.com/38333
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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Suggested by mdempsky in CL 38232.
This allows us to use the Frontend field
to associate frontend state and information
with a function.
See the following CL in the series for examples.
This is a giant CL, but it is almost entirely routine refactoring.
The ssa test API is starting to feel a bit unwieldy.
I will clean it up separately, once the dust has settled.
Passes toolstash -cmp.
Updates #15756
Change-Id: I71c573bd96ff7251935fce1391b06b1f133c3caf
Reviewed-on: https://go-review.googlesource.com/38327
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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Move a value to the block which is the lowest common ancestor in the
dominator tree of all of its uses. Make sure not to move a value into a
loop.
Makes the tighten pass on average (across go1 benchmarks) 40% slower.
Still not a big contributor to overall compile time.
Binary size is just a tad smaller.
name old time/op new time/op delta
BinaryTree17-12 2.77s ± 9% 2.76s ± 9% ~ (p=0.878 n=8+8)
Fannkuch11-12 2.75s ± 1% 2.74s ± 1% ~ (p=0.232 n=8+7)
FmtFprintfEmpty-12 48.9ns ± 9% 47.7ns ± 0% ~ (p=0.431 n=8+8)
FmtFprintfString-12 143ns ± 8% 142ns ± 1% ~ (p=0.257 n=8+7)
FmtFprintfInt-12 123ns ± 1% 122ns ± 1% -1.04% (p=0.026 n=7+8)
FmtFprintfIntInt-12 195ns ± 7% 185ns ± 0% -5.32% (p=0.000 n=8+8)
FmtFprintfPrefixedInt-12 194ns ± 4% 195ns ± 0% +0.81% (p=0.015 n=7+7)
FmtFprintfFloat-12 267ns ± 0% 268ns ± 0% +0.37% (p=0.001 n=7+6)
FmtManyArgs-12 800ns ± 0% 762ns ± 1% -4.78% (p=0.000 n=8+8)
GobDecode-12 7.67ms ± 2% 7.60ms ± 2% ~ (p=0.234 n=8+8)
GobEncode-12 6.55ms ± 0% 6.57ms ± 1% ~ (p=0.336 n=7+8)
Gzip-12 237ms ± 0% 238ms ± 0% +0.40% (p=0.017 n=7+7)
Gunzip-12 40.8ms ± 0% 40.2ms ± 0% -1.52% (p=0.000 n=7+8)
HTTPClientServer-12 208µs ± 3% 209µs ± 3% ~ (p=0.955 n=8+7)
JSONEncode-12 16.2ms ± 1% 17.2ms ±11% +5.80% (p=0.001 n=7+8)
JSONDecode-12 57.3ms ±12% 55.5ms ± 3% ~ (p=0.867 n=8+7)
Mandelbrot200-12 4.68ms ± 6% 4.46ms ± 1% ~ (p=0.442 n=8+8)
GoParse-12 4.27ms ±44% 3.42ms ± 1% -19.95% (p=0.005 n=8+8)
RegexpMatchEasy0_32-12 75.1ns ± 0% 75.8ns ± 1% +0.99% (p=0.002 n=7+7)
RegexpMatchEasy0_1K-12 963ns ± 0% 1021ns ± 6% +5.98% (p=0.001 n=7+7)
RegexpMatchEasy1_32-12 72.4ns ±11% 70.8ns ± 1% ~ (p=0.368 n=8+8)
RegexpMatchEasy1_1K-12 394ns ± 1% 399ns ± 0% +1.23% (p=0.000 n=8+7)
RegexpMatchMedium_32-12 114ns ± 0% 115ns ± 1% +0.63% (p=0.021 n=7+7)
RegexpMatchMedium_1K-12 35.9µs ± 0% 37.6µs ± 1% +4.72% (p=0.000 n=7+8)
RegexpMatchHard_32-12 1.93µs ± 2% 1.91µs ± 0% -0.91% (p=0.001 n=7+7)
RegexpMatchHard_1K-12 60.2µs ± 3% 61.2µs ±10% ~ (p=0.442 n=8+8)
Revcomp-12 404ms ± 1% 406ms ± 1% ~ (p=0.054 n=8+7)
Template-12 64.6ms ± 1% 63.5ms ± 1% -1.66% (p=0.000 n=8+8)
TimeParse-12 347ns ± 8% 309ns ± 0% -11.13% (p=0.000 n=8+7)
TimeFormat-12 343ns ± 4% 331ns ± 0% -3.34% (p=0.000 n=8+7)
Change-Id: Id6da1239ddd4d0cb074ff29cffb06302d1c6d08f
Reviewed-on: https://go-review.googlesource.com/28712
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
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