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Keith Randall fcf445dce2 runtime: initialize itab.hash always
We weren't initializing this field for dynamically-generated itabs.
Turns out it doesn't matter, as any time we use this field we also
generate a static itab for the interface type / concrete type pair.
But we should initialize it anyway, just to be safe.

Performance on the benchmarks in CL 44339:
benchmark               old ns/op     new ns/op     delta
BenchmarkItabFew-12     1040585       26466         -97.46%
BenchmarkItabAll-12     228873499     4287696       -98.13%

Change-Id: I58ed2b31e6c98b584122bdaf844fee7268b58295
Reviewed-on: https://go-review.googlesource.com/44475
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2017-08-15 01:52:40 +00:00
.github .github: add .md extension to SUPPORT file 2017-07-30 21:46:28 +00:00
api doc, api: add syscall.SysProcAttr.AmbientCaps change to 1.9 notes, API 2017-06-29 03:29:46 +00:00
doc spec: better comment in example for type definition 2017-08-14 13:35:43 +00:00
lib/time time: vendor tzdata-2017b and update test 2017-06-07 21:23:58 +00:00
misc cmd/cgo: use first error position instead of last one 2017-08-14 05:29:11 +00:00
src runtime: initialize itab.hash always 2017-08-15 01:52:40 +00:00
test test: reenable ... test 2017-08-11 17:41:17 +00:00
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.gitignore .gitignore: change path to zbootstrap.go 2017-04-19 02:13:58 +00:00
AUTHORS A+C: final updates for Go 1.9 2017-07-18 01:47:54 +00:00
CONTRIBUTING.md .github: recommend 'go bug' when filing an issue 2017-07-24 17:18:34 +00:00
CONTRIBUTORS A+C: final updates for Go 1.9 2017-07-18 01:47:54 +00:00
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README.md readme: add attribution for the Gopher image 2017-02-03 19:39:41 +00:00
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