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authorCuong Manh Le <cuong.manhle.vn@gmail.com>2020-11-24 00:58:00 +0700
committerCuong Manh Le <cuong.manhle.vn@gmail.com>2020-11-24 03:06:15 +0000
commit7dc5d909fb465345bf1583eb978aaa56ca365f38 (patch)
tree9278347c34dbc18ebb208e76121ef1c9367a0522 /src
parent762eda346a9f4062feaa8a9fc0d17d72b11586f0 (diff)
downloadgo-git-7dc5d909fb465345bf1583eb978aaa56ca365f38.tar.gz
cmd/compile: set OpLoad argument type interface{} correctly
CL 271906 allows loading single field of typed-interface{} OpIData, but it does not update the corresponding selector type. So the generated OpLoad has the named type instead, prevent it from being lowered by lower pass. Fixes #42784 Change-Id: Idf32e4f711731be09d508dd712b60bc8c58309bd Reviewed-on: https://go-review.googlesource.com/c/go/+/272466 Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com> Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
Diffstat (limited to 'src')
-rw-r--r--src/cmd/compile/internal/ssa/expand_calls.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/ssa/expand_calls.go b/src/cmd/compile/internal/ssa/expand_calls.go
index 180afab33b..f266e49327 100644
--- a/src/cmd/compile/internal/ssa/expand_calls.go
+++ b/src/cmd/compile/internal/ssa/expand_calls.go
@@ -250,6 +250,9 @@ func expandCalls(f *Func) {
if leafType != selector.Type && !selector.Type.IsEmptyInterface() { // empty interface for #42727
f.Fatalf("Unexpected Load as selector, leaf=%s, selector=%s\n", leaf.LongString(), selector.LongString())
}
+ if selector.Type.IsEmptyInterface() {
+ selector.Type = typ.BytePtr
+ }
leaf.copyOf(selector)
for _, s := range namedSelects[selector] {
locs = append(locs, f.Names[s.locIndex])