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go/test/abi/regabipragma.out
David Chase 861707a8c8 [dev.regabi] cmd/compile: added limited //go:registerparams pragma for new ABI dev
This only works for functions; if you try it with a method, it will
fail.  It does work for both local package and imports.  For now,
it tells you when it thinks it sees either a declaration or a call of
such a function (this will normally be silent since no existing
code uses this pragma).

Note: it appears to be really darn hard to figure out if this
pragma was set for a method, and the method's call site.  Better
ir.Node wranglers than I might be able to make headway, but it
seemed unnecessary for this experiment.

Change-Id: I601c2ddd124457bf6d62f714d7ac871705743c0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/279521
Trust: David Chase <drchase@google.com>
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
2021-01-13 15:50:04 +00:00

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# regabipragma.dir/tmp
tmp/foo.go:17:6: Declared function F has register params
# regabipragma.dir
./main.go:21:6: Declared function f has register params
./main.go:32:9: Called function "".f has register params
./main.go:33:13: Called function regabipragma.dir/tmp.F has register params