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Michael Pratt ce52871948 runtime/pprof: clarify recursive inline heuristic
Following CL 226818, the compiler will allow inlining a single cycle in
an inline chain. Immediately-recursive functions are still disallowed,
which is what this heuristic refers to.

Add a regression test for this case.

Note that in addition to this check, if the compiler were to inline
multiple cycles via a loop (i.e., rather than appending duplicate code),
much more work would be required here to handle a single address
appearing in multiple different inline frames.

Updates #29737

Change-Id: I88de15cfbeabb9c04381e1c12cc36778623132a5
Reviewed-on: https://go-review.googlesource.com/c/go/+/227346
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2020-04-13 20:37:17 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api all: remove scattered remnants of darwin/386 2020-04-08 18:37:38 +00:00
doc doc/debugging_with_gdb: fix the link of delve 2020-04-13 04:26:57 +00:00
lib/time lib/time: update tz data to 2019c 2019-11-26 12:03:08 +00:00
misc all: remove scattered remnants of darwin/386 2020-04-08 18:37:38 +00:00
src runtime/pprof: clarify recursive inline heuristic 2020-04-13 20:37:17 +00:00
test cmd/compile: prevent constant folding of +/- when result is NaN 2020-04-10 19:32:41 +00:00
.gitattributes build: force all Windows batch files to CRLF 2020-03-22 08:42:38 +00:00
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: add Andy Pan (individual CLA) 2020-04-05 22:58:00 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS A+C: add Andy Pan (individual CLA) 2020-04-05 22:58:00 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
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README.md README: linkify some paths 2018-06-06 18:07:01 +00:00
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SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +00:00

The Go Programming Language

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