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Matthew Dempsky 6de9423445 [dev.regabi] cmd/compile: cleanup OAS2FUNC ordering
Currently, to ensure OAS2FUNC results are assigned in the correct
order, they're always assigned to temporary variables. However, these
temporary variables are typed based on the destination type, which may
require an interface conversion. This means walk may have to then
introduce a second set of temporaries to ensure result parameters are
all copied out of the results area, before it emits calls to runtime
conversion functions.

That's just silly. Instead, this CL changes order to allocate the
result temporaries with the same type as the function returns in the
first place, and then assign them one at a time to their destinations,
with conversions as needed.

While here, also fix an order-of-evaluation issue with has-ok
assignments that I almost added to multi-value function call
assignments, and add tests for each.

Change-Id: I9f4e962425fe3c5e3305adbbfeae2c7f253ec365
Reviewed-on: https://go-review.googlesource.com/c/go/+/284220
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2021-01-16 23:19:26 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api api/go1.16: remove crypto/tls APIs that are moved to Go 1.17 2020-12-17 20:25:45 +00:00
doc doc: fix a typo in contribute.html 2020-12-23 17:01:35 +00:00
lib/time lib/time, time/tzdata: update tzdata to 2020e 2020-12-23 17:29:16 +00:00
misc cmd/compile, runtime: use __msan_memmove for moving data, split msanread to fields 2020-12-03 15:40:11 +00:00
src [dev.regabi] cmd/compile: cleanup OAS2FUNC ordering 2021-01-16 23:19:26 +00:00
test [dev.regabi] cmd/compile: cleanup OAS2FUNC ordering 2021-01-16 23:19:26 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore
AUTHORS A+C: add Kush Patel (corporate CLA for Hootsuite Inc) 2020-07-08 00:10:44 +00:00
codereview.cfg [dev.regabi] codereview.cfg: add config for dev.regabi 2020-12-22 21:02:04 +00:00
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CONTRIBUTORS CONTRIBUTORS: update for the Go 1.15 release 2020-08-10 21:51:48 +00:00
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