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2 Commits

Author SHA1 Message Date
Matthew Dempsky
09d4455f45 cmd/compile: enable inlining variadic functions
As a side effect of working on mid-stack inlining, we've fixed support
for inlining variadic functions. Might as well enable it.

Change-Id: I7f555f8b941969791db7eb598c0b49f6dc0820aa
Reviewed-on: https://go-review.googlesource.com/100456
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-03-13 20:34:03 +00:00
David Lazar
5d1b53a944 cmd/compile: generate code that type checks when inlining variadic functions
This fixes a bug in -l=3 or higher.

To inline a variadic function, the compiler generates code that constructs
a slice of arguments for the variadic parameter. Consider the function

  func Foo(xs ...string)

and the call Foo("hello", "world"). To inline the call to Foo, the
compiler used to generate

  xs := [2]string{"hello", "world"}[:]

which doesn't type check:

  invalid operation [2]string literal[:] (slice of unaddressable value).

Now, the compiler generates

  xs := []string{"hello", "world"}

which does type check.

Fixes #18116.

Change-Id: I0ee531ef2e6cc276db6fb12602b25a46d6d5db21
Reviewed-on: https://go-review.googlesource.com/33671
Reviewed-by: Keith Randall <khr@golang.org>
2016-11-30 19:46:00 +00:00