diff options
Diffstat (limited to 'src/cmd/compile/internal/gc/ssa.go')
| -rw-r--r-- | src/cmd/compile/internal/gc/ssa.go | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go index bf483f8416..a0c1cf15b9 100644 --- a/src/cmd/compile/internal/gc/ssa.go +++ b/src/cmd/compile/internal/gc/ssa.go @@ -3470,8 +3470,13 @@ func (s *state) insertWBstore(t *Type, left, right *ssa.Value, line int32, skip if s.WBLineno == 0 { s.WBLineno = left.Line } - s.storeTypeScalars(t, left, right, skip) - s.storeTypePtrsWB(t, left, right) + if t == Types[TUINTPTR] { + // Stores to reflect.{Slice,String}Header.Data. + s.vars[&memVar] = s.newValue3I(ssa.OpStoreWB, ssa.TypeMem, s.config.PtrSize, left, right, s.mem()) + } else { + s.storeTypeScalars(t, left, right, skip) + s.storeTypePtrsWB(t, left, right) + } // WB ops will be expanded to branches at writebarrier phase. // To make it easy, we put WB ops at the end of a block, so |