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ChrisALiles 22ff9521da cmd/compile: pass arguments to convt2E/I integer functions by value
The motivation is avoid generating a pointer to the data being
converted so it can be garbage collected.
The change also slightly reduces binary size by shrinking call sites.

Fixes #24286

Benchmark results:
name                   old time/op  new time/op  delta
ConvT2ESmall-4         2.86ns ± 0%  2.80ns ± 1%  -2.12%  (p=0.000 n=29+28)
ConvT2EUintptr-4       2.88ns ± 1%  2.88ns ± 0%  -0.20%  (p=0.002 n=28+30)
ConvT2ELarge-4         19.6ns ± 0%  20.4ns ± 1%  +4.22%  (p=0.000 n=19+30)
ConvT2ISmall-4         3.01ns ± 0%  2.85ns ± 0%  -5.32%  (p=0.000 n=24+28)
ConvT2IUintptr-4       3.00ns ± 1%  2.87ns ± 0%  -4.44%  (p=0.000 n=29+25)
ConvT2ILarge-4         20.4ns ± 1%  21.3ns ± 1%  +4.41%  (p=0.000 n=30+26)
ConvT2Ezero/zero/16-4  2.84ns ± 1%  2.99ns ± 0%  +5.38%  (p=0.000 n=30+25)
ConvT2Ezero/zero/32-4  2.83ns ± 2%  3.00ns ± 0%  +5.91%  (p=0.004 n=27+3)

Change-Id: I65016ec94c53f97c52113121cab582d0c342b7a8
Reviewed-on: https://go-review.googlesource.com/102636
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-04-29 15:53:39 +00:00
.github github: update Pull Request template 2018-02-21 02:07:46 +00:00
api syscall: introduce Pointer type and use it instead of uintptr 2018-04-18 08:50:42 +00:00
doc cmd/compile: add softfloat support to mips64{,le} 2018-04-27 14:50:17 +00:00
lib/time all: use HTTPS for iana.org links 2018-02-13 18:36:48 +00:00
misc misc/wasm: wasm_exec: non-zero exit code on compile error 2018-04-27 20:57:51 +00:00
src cmd/compile: pass arguments to convt2E/I integer functions by value 2018-04-29 15:53:39 +00:00
test cmd/compile: teach prove to handle expressions like len(s)-delta 2018-04-29 09:38:32 +00:00
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.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: update email address 2018-04-14 19:28:37 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS C: add Iskander Sharipov's individual CLA mail 2018-04-16 04:49:46 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
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The Go Programming Language

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