qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-09-29 13:24:28 -06:00
Code Releases Activity

cmd/compile: mark instantiated generic functions as DUPOK

Browse Source 
Unified IR wasn't marking instantiated generic functions as DUPOK,
even though they can appear in multiple compilation units, which
evidently interfered with cmd/link's dead code elimination logic.

Manually confirmed to fix the issue, but non-trivial to test within
$GOROOT/test currently, because it's only reproducible when
cmd/compile is invoked with -p. @rsc is currently investigating
updating test/run.go appropriately, after which I'll revisit writing a
test case.

Fixes #51519.

Change-Id: I74a79ed0ca15b25b826e419714af5ceb6e567012
Reviewed-on: https://go-review.googlesource.com/c/go/+/390956
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
This commit is contained in:
Matthew Dempsky 2022-03-08 14:59:32 -08:00
parent c6d9b38dd8
commit 7160e32529
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/cmd/compile/internal/noder/reader.go
View File

@ -644,6 +644,10 @@ func (pr *pkgReader) objIdx(idx int, implicits, explicits []*types.Type) ir.Node
name.Func = ir.NewFunc(r.pos())
name.Func.Nname = name
if r.hasTypeParams() {
name.Func.SetDupok(true)
}
rext.funcExt(name)
return name
@ -790,6 +794,10 @@ func (r *reader) method(rext *reader) *types.Field {
name.Func = ir.NewFunc(r.pos())
name.Func.Nname = name
if r.hasTypeParams() {
name.Func.SetDupok(true)
}
rext.funcExt(name)
meth := types.NewField(name.Func.Pos(), sym, typ)