diff options
Diffstat (limited to 'src/cmd/compile/internal/ssagen/ssa.go')
| -rw-r--r-- | src/cmd/compile/internal/ssagen/ssa.go | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/ssagen/ssa.go b/src/cmd/compile/internal/ssagen/ssa.go index 1cbe414865..2ffd49198a 100644 --- a/src/cmd/compile/internal/ssagen/ssa.go +++ b/src/cmd/compile/internal/ssagen/ssa.go @@ -5118,6 +5118,18 @@ func (s *state) call(n *ir.CallExpr, k callKind, returnResultAddr bool) *ssa.Val for _, p := range params.InParams() { // includes receiver for interface calls ACArgs = append(ACArgs, p.Type) } + + // Split the entry block if there are open defers, because later calls to + // openDeferSave may cause a mismatch between the mem for an OpDereference + // and the call site which uses it. See #49282. + if s.curBlock.ID == s.f.Entry.ID && s.hasOpenDefers { + b := s.endBlock() + b.Kind = ssa.BlockPlain + curb := s.f.NewBlock(ssa.BlockPlain) + b.AddEdgeTo(curb) + s.startBlock(curb) + } + for i, n := range args { callArgs = append(callArgs, s.putArg(n, t.Params().Field(i).Type)) } |