diff options
| -rw-r--r-- | lib/compiler/src/beam_validator.erl | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl index 6219bc6894..ea38969814 100644 --- a/lib/compiler/src/beam_validator.erl +++ b/lib/compiler/src/beam_validator.erl @@ -1329,7 +1329,12 @@ branch_arities([Sz,{f,L}|T], Tuple, #vst{current=St}=Vst0) Vst = branch_state(L, Vst1), branch_arities(T, Tuple, Vst#vst{current=St}). -branch_state(0, #vst{}=Vst) -> Vst; +branch_state(0, #vst{}=Vst) -> + %% If the instruction fails, the stack may be scanned + %% looking for a catch tag. Therefore the Y registers + %% must be initialized at this point. + verify_y_init(Vst), + Vst; branch_state(L, #vst{current=St,branched=B}=Vst) -> Vst#vst{ branched=case gb_trees:is_defined(L, B) of |