diff options
| -rw-r--r-- | lib/compiler/src/v3_codegen.erl | 15 | ||||
| -rw-r--r-- | lib/compiler/src/v3_kernel.erl | 15 |
2 files changed, 12 insertions, 18 deletions
diff --git a/lib/compiler/src/v3_codegen.erl b/lib/compiler/src/v3_codegen.erl index 6623485609..0b81cb33c9 100644 --- a/lib/compiler/src/v3_codegen.erl +++ b/lib/compiler/src/v3_codegen.erl @@ -1423,20 +1423,7 @@ set_cg([{var,R}], Con, Le, Vdb, Bef, St) -> Other -> [{move,Other,Ret}] end, - {Ais,clear_dead(Int, Le#l.i, Vdb),St}; -set_cg([], {binary,Segs}, Le, Vdb, Bef, St) -> - Fail = {f,St#cg.bfail}, - Target = find_scratch_reg(Bef#sr.reg), - Temp = find_scratch_reg(put_reg(Target, Bef#sr.reg)), - PutCode = cg_bin_put(Segs, Fail, Bef), - MaxRegs = max_reg(Bef#sr.reg), - Code = cg_binary(PutCode, Target, Temp, Fail, MaxRegs, Le#l.a), - Aft = clear_dead(Bef, Le#l.i, Vdb), - {Code,Aft,St}; -set_cg([], _, Le, Vdb, Bef, St) -> - %% This should have been stripped by compiler, just cleanup. - {[],clear_dead(Bef, Le#l.i, Vdb), St}. - + {Ais,clear_dead(Int, Le#l.i, Vdb),St}. %%% %%% Code generation for constructing binaries. diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl index 0638041950..67c5764abf 100644 --- a/lib/compiler/src/v3_kernel.erl +++ b/lib/compiler/src/v3_kernel.erl @@ -1546,11 +1546,12 @@ uguard_expr(#k_match{anno=A,vars=Vs,body=B0}, Rs, St0) -> {B1,Bu,St1} = umatch(B0, Br, St0), {#k_guard_match{anno=#k{us=Bu,ns=lit_list_vars(Rs),a=A}, vars=Vs,body=B1,ret=Rs},Bu,St1}; -uguard_expr(Lit, Rs, St) -> +uguard_expr(Lit, Rs0, St0) -> %% Transform literals to puts here. Used = lit_vars(Lit), + {Rs,St1} = ensure_return_vars(Rs0, St0), {#k_put{anno=#k{us=Used,ns=lit_list_vars(Rs),a=get_kanno(Lit)}, - arg=Lit,ret=Rs},Used,St}. + arg=Lit,ret=Rs},Used,St1}. %% uexpr(Expr, Break, State) -> {Expr,[UsedVar],State}. %% Tag an expression with its used variables. @@ -1670,12 +1671,13 @@ uexpr(#ifun{anno=A,vars=Vs,body=B0}, {break,Rs}, St0) -> #k_int{val=Index},#k_int{val=Uniq}|Fvs], ret=Rs}, Free,add_local_function(Fun, St)}; -uexpr(Lit, {break,Rs}, St) -> +uexpr(Lit, {break,Rs0}, St0) -> %% Transform literals to puts here. %%ok = io:fwrite("uexpr ~w:~p~n", [?LINE,Lit]), Used = lit_vars(Lit), + {Rs,St1} = ensure_return_vars(Rs0, St0), {#k_put{anno=#k{us=Used,ns=lit_list_vars(Rs),a=get_kanno(Lit)}, - arg=Lit,ret=Rs},Used,St}. + arg=Lit,ret=Rs},Used,St1}. add_local_function(_, #kern{funs=ignore}=St) -> St; add_local_function(F, #kern{funs=Funs}=St) -> St#kern{funs=[F|Funs]}. @@ -1732,6 +1734,11 @@ bif_returns(#k_internal{name=N,arity=Ar}, Rs, St0) -> {Ns,St1} = new_vars(bif_vals(N, Ar) - length(Rs), St0), {Rs ++ Ns,St1}. +%% ensure_return_vars([Ret], State) -> {[Ret],State}. + +ensure_return_vars([], St) -> new_vars(1, St); +ensure_return_vars([_]=Rs, St) -> {Rs,St}. + %% umatch(Match, Break, State) -> {Match,[UsedVar],State}. %% Tag a match expression with its used variables. |