diff options
Diffstat (limited to 'lib/compiler/src/beam_ssa_codegen.erl')
| -rw-r--r-- | lib/compiler/src/beam_ssa_codegen.erl | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/lib/compiler/src/beam_ssa_codegen.erl b/lib/compiler/src/beam_ssa_codegen.erl index becfe56b3a..40c2d8c07a 100644 --- a/lib/compiler/src/beam_ssa_codegen.erl +++ b/lib/compiler/src/beam_ssa_codegen.erl @@ -1270,21 +1270,29 @@ cg_call(#cg_set{anno=Anno,op=call,dst=Dst0,args=[#b_local{}=Func0|Args0]}, Call = build_call(call, Arity, {f,FuncLbl}, Context, Dst), Is = setup_args(Args, Anno, Context, St) ++ Line ++ Call, {Is,St}; -cg_call(#cg_set{anno=Anno,op=call,dst=Dst0,args=[#b_remote{}=Func0|Args0]}, +cg_call(#cg_set{anno=Anno0,op=call,dst=Dst0,args=[#b_remote{}=Func0|Args0]}, Where, Context, St) -> [Dst|Args] = beam_args([Dst0|Args0], St), #b_remote{mod=Mod0,name=Name0,arity=Arity} = Func0, case {beam_arg(Mod0, St),beam_arg(Name0, St)} of {{atom,Mod},{atom,Name}} -> Func = {extfunc,Mod,Name,Arity}, - Line = call_line(Where, Func, Anno), + Line = call_line(Where, Func, Anno0), Call = build_call(call_ext, Arity, Func, Context, Dst), + Anno = case erl_bifs:is_exit_bif(Mod, Name, Arity) of + true -> + %% There is no need to kill Y registers + %% before calling an exit BIF. + maps:remove(kill_yregs, Anno0); + false -> + Anno0 + end, Is = setup_args(Args, Anno, Context, St) ++ Line ++ Call, {Is,St}; {Mod,Name} -> Apply = build_apply(Arity, Context, Dst), - Is = setup_args(Args++[Mod,Name], Anno, Context, St) ++ - [line(Anno)] ++ Apply, + Is = setup_args(Args++[Mod,Name], Anno0, Context, St) ++ + [line(Anno0)] ++ Apply, {Is,St} end; cg_call(#cg_set{anno=Anno,op=call,dst=Dst0,args=Args0}, |