diff options
| -rw-r--r-- | erts/emulator/beam/arith_instrs.tab | 105 | ||||
| -rw-r--r-- | erts/emulator/beam/beam_debug.c | 17 | ||||
| -rw-r--r-- | erts/emulator/beam/beam_emu.c | 19 | ||||
| -rw-r--r-- | erts/emulator/beam/beam_load.c | 114 | ||||
| -rw-r--r-- | erts/emulator/beam/bif.tab | 26 | ||||
| -rw-r--r-- | erts/emulator/beam/bif_instrs.tab | 175 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_arith.c | 970 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_bif_binary.c | 98 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_bif_guard.c | 418 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_binary.h | 1 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_map.c | 17 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_vm.h | 15 | ||||
| -rw-r--r-- | erts/emulator/beam/ops.tab | 108 |
13 files changed, 223 insertions, 1860 deletions
diff --git a/erts/emulator/beam/arith_instrs.tab b/erts/emulator/beam/arith_instrs.tab index b828e86788..574fceec5b 100644 --- a/erts/emulator/beam/arith_instrs.tab +++ b/erts/emulator/beam/arith_instrs.tab @@ -19,21 +19,22 @@ // %CopyrightEnd% // -OUTLINED_ARITH_2(Fail, Live, Name, BIF, Op1, Op2, Dst) { +OUTLINED_ARITH_2(Fail, Name, BIF, Op1, Op2, Dst) { Eterm result; - Uint live = $Live; - HEAVY_SWAPOUT; - reg[live] = $Op1; - reg[live+1] = $Op2; - result = erts_gc_$Name (c_p, reg, live); - HEAVY_SWAPIN; +#ifdef DEBUG + Eterm* orig_htop = HTOP; + Eterm* orig_stop = E; +#endif + DEBUG_SWAPOUT; + result = erts_$Name (c_p, $Op1, $Op2); + DEBUG_SWAPIN; + ASSERT(orig_htop == HTOP && orig_stop == E); ERTS_HOLE_CHECK(c_p); if (ERTS_LIKELY(is_value(result))) { - $REFRESH_GEN_DEST(); $Dst = result; $NEXT0(); } - $BIF_ERROR_ARITY_2($Fail, $BIF, reg[live], reg[live+1]); + $BIF_ERROR_ARITY_2($Fail, $BIF, $Op1, $Op2); } @@ -48,7 +49,7 @@ plus.fetch(Op1, Op2) { PlusOp2 = $Op2; } -plus.execute(Fail, Live, Dst) { +plus.execute(Fail, Dst) { if (ERTS_LIKELY(is_both_small(PlusOp1, PlusOp2))) { Sint i = signed_val(PlusOp1) + signed_val(PlusOp2); if (ERTS_LIKELY(IS_SSMALL(i))) { @@ -56,7 +57,7 @@ plus.execute(Fail, Live, Dst) { $NEXT0(); } } - $OUTLINED_ARITH_2($Fail, $Live, mixed_plus, BIF_splus_2, PlusOp1, PlusOp2, $Dst); + $OUTLINED_ARITH_2($Fail, mixed_plus, BIF_splus_2, PlusOp1, PlusOp2, $Dst); } i_minus := minus.fetch.execute; @@ -70,7 +71,7 @@ minus.fetch(Op1, Op2) { MinusOp2 = $Op2; } -minus.execute(Fail, Live, Dst) { +minus.execute(Fail, Dst) { if (ERTS_LIKELY(is_both_small(MinusOp1, MinusOp2))) { Sint i = signed_val(MinusOp1) - signed_val(MinusOp2); if (ERTS_LIKELY(IS_SSMALL(i))) { @@ -78,7 +79,7 @@ minus.execute(Fail, Live, Dst) { $NEXT0(); } } - $OUTLINED_ARITH_2($Fail, $Live, mixed_minus, BIF_sminus_2, MinusOp1, MinusOp2, $Dst); + $OUTLINED_ARITH_2($Fail, mixed_minus, BIF_sminus_2, MinusOp1, MinusOp2, $Dst); } i_increment := increment.fetch.execute; @@ -91,9 +92,8 @@ increment.fetch(Src) { increment_reg_val = $Src; } -increment.execute(IncrementVal, Live, Dst) { +increment.execute(IncrementVal, Dst) { Eterm increment_val = $IncrementVal; - Uint live; Eterm result; if (ERTS_LIKELY(is_small(increment_reg_val))) { @@ -103,15 +103,9 @@ increment.execute(IncrementVal, Live, Dst) { $NEXT0(); } } - live = $Live; - HEAVY_SWAPOUT; - reg[live] = increment_reg_val; - reg[live+1] = make_small(increment_val); - result = erts_gc_mixed_plus(c_p, reg, live); - HEAVY_SWAPIN; + result = erts_mixed_plus(c_p, increment_reg_val, make_small(increment_val)); ERTS_HOLE_CHECK(c_p); if (ERTS_LIKELY(is_value(result))) { - $REFRESH_GEN_DEST(); $Dst = result; $NEXT0(); } @@ -119,19 +113,19 @@ increment.execute(IncrementVal, Live, Dst) { goto find_func_info; } -i_times(Fail, Live, Op1, Op2, Dst) { +i_times(Fail, Op1, Op2, Dst) { Eterm op1 = $Op1; Eterm op2 = $Op2; - $OUTLINED_ARITH_2($Fail, $Live, mixed_times, BIF_stimes_2, op1, op2, $Dst); + $OUTLINED_ARITH_2($Fail, mixed_times, BIF_stimes_2, op1, op2, $Dst); } -i_m_div(Fail, Live, Op1, Op2, Dst) { +i_m_div(Fail, Op1, Op2, Dst) { Eterm op1 = $Op1; Eterm op2 = $Op2; - $OUTLINED_ARITH_2($Fail, $Live, mixed_div, BIF_div_2, op1, op2, $Dst); + $OUTLINED_ARITH_2($Fail, mixed_div, BIF_div_2, op1, op2, $Dst); } -i_int_div(Fail, Live, Op1, Op2, Dst) { +i_int_div(Fail, Op1, Op2, Dst) { Eterm op1 = $Op1; Eterm op2 = $Op2; if (ERTS_UNLIKELY(op2 == SMALL_ZERO)) { @@ -144,7 +138,7 @@ i_int_div(Fail, Live, Op1, Op2, Dst) { $NEXT0(); } } - $OUTLINED_ARITH_2($Fail, $Live, int_div, BIF_intdiv_2, op1, op2, $Dst); + $OUTLINED_ARITH_2($Fail, int_div, BIF_intdiv_2, op1, op2, $Dst); } i_rem := rem.fetch.execute; @@ -158,7 +152,7 @@ rem.fetch(Src1, Src2) { RemOp2 = $Src2; } -rem.execute(Fail, Live, Dst) { +rem.execute(Fail, Dst) { if (ERTS_UNLIKELY(RemOp2 == SMALL_ZERO)) { c_p->freason = BADARITH; $BIF_ERROR_ARITY_2($Fail, BIF_rem_2, RemOp1, RemOp2); @@ -166,7 +160,7 @@ rem.execute(Fail, Live, Dst) { $Dst = make_small(signed_val(RemOp1) % signed_val(RemOp2)); $NEXT0(); } else { - $OUTLINED_ARITH_2($Fail, $Live, int_rem, BIF_rem_2, RemOp1, RemOp2, $Dst); + $OUTLINED_ARITH_2($Fail, int_rem, BIF_rem_2, RemOp1, RemOp2, $Dst); } } @@ -181,7 +175,7 @@ band.fetch(Src1, Src2) { BandOp2 = $Src2; } -band.execute(Fail, Live, Dst) { +band.execute(Fail, Dst) { if (ERTS_LIKELY(is_both_small(BandOp1, BandOp2))) { /* * No need to untag -- TAG & TAG == TAG. @@ -189,10 +183,10 @@ band.execute(Fail, Live, Dst) { $Dst = BandOp1 & BandOp2; $NEXT0(); } - $OUTLINED_ARITH_2($Fail, $Live, band, BIF_band_2, BandOp1, BandOp2, $Dst); + $OUTLINED_ARITH_2($Fail, band, BIF_band_2, BandOp1, BandOp2, $Dst); } -i_bor(Fail, Live, Src1, Src2, Dst) { +i_bor(Fail, Src1, Src2, Dst) { if (ERTS_LIKELY(is_both_small($Src1, $Src2))) { /* * No need to untag -- TAG | TAG == TAG. @@ -200,10 +194,10 @@ i_bor(Fail, Live, Src1, Src2, Dst) { $Dst = $Src1 | $Src2; $NEXT0(); } - $OUTLINED_ARITH_2($Fail, $Live, bor, BIF_bor_2, $Src1, $Src2, $Dst); + $OUTLINED_ARITH_2($Fail, bor, BIF_bor_2, $Src1, $Src2, $Dst); } -i_bxor(Fail, Live, Src1, Src2, Dst) { +i_bxor(Fail, Src1, Src2, Dst) { if (ERTS_LIKELY(is_both_small($Src1, $Src2))) { /* * TAG ^ TAG == 0. @@ -214,7 +208,7 @@ i_bxor(Fail, Live, Src1, Src2, Dst) { $Dst = ($Src1 ^ $Src2) | make_small(0); $NEXT0(); } - $OUTLINED_ARITH_2($Fail, $Live, bxor, BIF_bxor_2, $Src1, $Src2, $Dst); + $OUTLINED_ARITH_2($Fail, bxor, BIF_bxor_2, $Src1, $Src2, $Dst); } i_bsl := shift.setup_bsl.execute; @@ -265,7 +259,7 @@ shift.setup_bsl(Src1, Src2) { } } -shift.execute(Fail, Live, Dst) { +shift.execute(Fail, Dst) { Uint big_words_needed; if (ERTS_LIKELY(is_small(Op1))) { @@ -320,7 +314,9 @@ shift.execute(Fail, Live, Dst) { } { Eterm tmp_big[2]; - Sint big_need_size = BIG_NEED_SIZE(big_words_needed+1); + Sint big_need_size = 1 + BIG_NEED_SIZE(big_words_needed+1); + Eterm* hp; + Eterm* hp_end; /* * Slightly conservative check the size to avoid @@ -331,15 +327,16 @@ shift.execute(Fail, Live, Dst) { if (big_need_size-8 > BIG_ARITY_MAX) { $SYSTEM_LIMIT($Fail); } - $GC_TEST_PRESERVE(big_need_size+1, $Live, Op1); + hp = HeapFragOnlyAlloc(c_p, big_need_size); if (is_small(Op1)) { Op1 = small_to_big(signed_val(Op1), tmp_big); } - Op1 = big_lshift(Op1, shift_left_count, HTOP); + Op1 = big_lshift(Op1, shift_left_count, hp); + hp_end = hp + big_need_size; if (is_big(Op1)) { - HTOP += bignum_header_arity(*HTOP) + 1; + hp += bignum_header_arity(*hp) + 1; } - HEAP_SPACE_VERIFIED(0); + HRelease(c_p, hp_end, hp); if (ERTS_UNLIKELY(is_nil(Op1))) { /* * This result must have been only slighty larger @@ -349,7 +346,6 @@ shift.execute(Fail, Live, Dst) { $SYSTEM_LIMIT($Fail); } ERTS_HOLE_CHECK(c_p); - $REFRESH_GEN_DEST(); $Dst = Op1; $NEXT0(); } @@ -366,31 +362,28 @@ shift.execute(Fail, Live, Dst) { reg[0] = Op1; reg[1] = Op2; SWAPOUT; - if (IsOpCode(I[0], i_bsl_ssjtd)) { + if (IsOpCode(I[0], i_bsl_ssjd)) { I = handle_error(c_p, I, reg, &bif_export[BIF_bsl_2]->info.mfa); } else { - ASSERT(IsOpCode(I[0], i_bsr_ssjtd)); + ASSERT(IsOpCode(I[0], i_bsr_ssjd)); I = handle_error(c_p, I, reg, &bif_export[BIF_bsr_2]->info.mfa); } goto post_error_handling; } } -i_int_bnot(Fail, Src, Live, Dst) { +i_int_bnot(Fail, Src, Dst) { Eterm bnot_val = $Src; + Eterm result; + if (ERTS_LIKELY(is_small(bnot_val))) { - bnot_val = make_small(~signed_val(bnot_val)); + result = make_small(~signed_val(bnot_val)); } else { - Uint live = $Live; - HEAVY_SWAPOUT; - reg[live] = bnot_val; - bnot_val = erts_gc_bnot(c_p, reg, live); - HEAVY_SWAPIN; + result = erts_bnot(c_p, bnot_val); ERTS_HOLE_CHECK(c_p); - if (ERTS_UNLIKELY(is_nil(bnot_val))) { - $BIF_ERROR_ARITY_1($Fail, BIF_bnot_1, reg[live]); + if (ERTS_UNLIKELY(is_nil(result))) { + $BIF_ERROR_ARITY_1($Fail, BIF_bnot_1, bnot_val); } - $REFRESH_GEN_DEST(); } - $Dst = bnot_val; + $Dst = result; } diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c index b33aab7eee..f71efd708f 100644 --- a/erts/emulator/beam/beam_debug.c +++ b/erts/emulator/beam/beam_debug.c @@ -558,23 +558,6 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr) case 'I': case 'W': switch (op) { - case op_i_gc_bif1_jWstd: - case op_i_gc_bif2_jWtssd: - case op_i_gc_bif3_jWtssd: - { - const ErtsGcBif* p; - BifFunction gcf = (BifFunction) *ap; - for (p = erts_gc_bifs; p->bif != 0; p++) { - if (p->gc_bif == gcf) { - print_bif_name(to, to_arg, p->bif); - break; - } - } - if (p->bif == 0) { - erts_print(to, to_arg, "%d", (Uint)gcf); - } - break; - } case op_i_make_fun_Wt: if (*sign == 'W') { ErlFunEntry* fe = (ErlFunEntry *) *ap; diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 2e4d1f8f48..6b34024a5a 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -206,8 +206,12 @@ void** beam_ops; #ifdef DEBUG # /* The stack pointer is used in an assertion. */ # define LIGHT_SWAPOUT SWAPOUT +# define DEBUG_SWAPOUT SWAPOUT +# define DEBUG_SWAPIN SWAPIN #else # define LIGHT_SWAPOUT HEAP_TOP(c_p) = HTOP +# define DEBUG_SWAPOUT +# define DEBUG_SWAPIN #endif /* @@ -386,7 +390,6 @@ do { \ */ static void init_emulator_finish(void) NOINLINE; static ErtsCodeMFA *ubif2mfa(void* uf) NOINLINE; -static ErtsCodeMFA *gcbif2mfa(void* gcf) NOINLINE; static BeamInstr* handle_error(Process* c_p, BeamInstr* pc, Eterm* reg, ErtsCodeMFA* bif_mfa) NOINLINE; static BeamInstr* call_error_handler(Process* p, ErtsCodeMFA* mfa, @@ -1301,18 +1304,6 @@ void erts_dirty_process_main(ErtsSchedulerData *esdp) } static ErtsCodeMFA * -gcbif2mfa(void* gcf) -{ - int i; - for (i = 0; erts_gc_bifs[i].bif; i++) { - if (erts_gc_bifs[i].gc_bif == gcf) - return &bif_export[erts_gc_bifs[i].exp_ix]->info.mfa; - } - erts_exit(ERTS_ERROR_EXIT, "bad gc bif"); - return NULL; -} - -static ErtsCodeMFA * ubif2mfa(void* uf) { int i; @@ -1320,7 +1311,7 @@ ubif2mfa(void* uf) if (erts_u_bifs[i].bif == uf) return &bif_export[erts_u_bifs[i].exp_ix]->info.mfa; } - erts_exit(ERTS_ERROR_EXIT, "bad u bif"); + erts_exit(ERTS_ERROR_EXIT, "bad u bif: %p\n", uf); return NULL; } diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c index c28a5c57e6..400a58a75c 100644 --- a/erts/emulator/beam/beam_load.c +++ b/erts/emulator/beam/beam_load.c @@ -3580,38 +3580,36 @@ gen_skip_bits2(LoaderState* stp, GenOpArg Fail, GenOpArg Ms, } static GenOp* -gen_increment(LoaderState* stp, GenOpArg Reg, GenOpArg Integer, - GenOpArg Live, GenOpArg Dst) +gen_increment(LoaderState* stp, GenOpArg Reg, + GenOpArg Integer, GenOpArg Dst) { GenOp* op; NEW_GENOP(stp, op); - op->op = genop_i_increment_4; - op->arity = 4; + op->op = genop_i_increment_3; + op->arity = 3; op->next = NULL; op->a[0] = Reg; op->a[1].type = TAG_u; op->a[1].val = Integer.val; - op->a[2] = Live; - op->a[3] = Dst; + op->a[2] = Dst; return op; } static GenOp* -gen_increment_from_minus(LoaderState* stp, GenOpArg Reg, GenOpArg Integer, - GenOpArg Live, GenOpArg Dst) +gen_increment_from_minus(LoaderState* stp, GenOpArg Reg, + GenOpArg Integer, GenOpArg Dst) { GenOp* op; NEW_GENOP(stp, op); - op->op = genop_i_increment_4; - op->arity = 4; + op->op = genop_i_increment_3; + op->arity = 3; op->next = NULL; op->a[0] = Reg; op->a[1].type = TAG_u; op->a[1].val = -Integer.val; - op->a[2] = Live; - op->a[3] = Dst; + op->a[2] = Dst; return op; } @@ -4300,98 +4298,6 @@ gen_make_fun2(LoaderState* stp, GenOpArg idx) } static GenOp* -translate_gc_bif(LoaderState* stp, GenOp* op, GenOpArg Bif) -{ - const ErtsGcBif* p; - BifFunction bf; - - bf = stp->import[Bif.val].bf; - for (p = erts_gc_bifs; p->bif != 0; p++) { - if (p->bif == bf) { - op->a[1].type = TAG_u; - op->a[1].val = (BeamInstr) p->gc_bif; - return op; - } - } - - op->op = genop_unsupported_guard_bif_3; - op->arity = 3; - op->a[0].type = TAG_a; - op->a[0].val = stp->import[Bif.val].module; - op->a[1].type = TAG_a; - op->a[1].val = stp->import[Bif.val].function; - op->a[2].type = TAG_u; - op->a[2].val = stp->import[Bif.val].arity; - return op; -} - -/* - * Rewrite gc_bifs with one parameter (the common case). - */ -static GenOp* -gen_guard_bif1(LoaderState* stp, GenOpArg Fail, GenOpArg Live, GenOpArg Bif, - GenOpArg Src, GenOpArg Dst) -{ - GenOp* op; - - NEW_GENOP(stp, op); - op->next = NULL; - op->op = genop_i_gc_bif1_5; - op->arity = 5; - op->a[0] = Fail; - /* op->a[1] is set by translate_gc_bif() */ - op->a[2] = Src; - op->a[3] = Live; - op->a[4] = Dst; - return translate_gc_bif(stp, op, Bif); -} - -/* - * This is used by the ops.tab rule that rewrites gc_bifs with two parameters. - */ -static GenOp* -gen_guard_bif2(LoaderState* stp, GenOpArg Fail, GenOpArg Live, GenOpArg Bif, - GenOpArg S1, GenOpArg S2, GenOpArg Dst) -{ - GenOp* op; - - NEW_GENOP(stp, op); - op->next = NULL; - op->op = genop_i_gc_bif2_6; - op->arity = 6; - op->a[0] = Fail; - /* op->a[1] is set by translate_gc_bif() */ - op->a[2] = Live; - op->a[3] = S1; - op->a[4] = S2; - op->a[5] = Dst; - return translate_gc_bif(stp, op, Bif); -} - -/* - * This is used by the ops.tab rule that rewrites gc_bifs with three parameters. - */ -static GenOp* -gen_guard_bif3(LoaderState* stp, GenOpArg Fail, GenOpArg Live, GenOpArg Bif, - GenOpArg S1, GenOpArg S2, GenOpArg S3, GenOpArg Dst) -{ - GenOp* op; - - NEW_GENOP(stp, op); - op->next = NULL; - op->op = genop_ii_gc_bif3_7; - op->arity = 7; - op->a[0] = Fail; - /* op->a[1] is set by translate_gc_bif() */ - op->a[2] = Live; - op->a[3] = S1; - op->a[4] = S2; - op->a[5] = S3; - op->a[6] = Dst; - return translate_gc_bif(stp, op, Bif); -} - -static GenOp* tuple_append_put5(LoaderState* stp, GenOpArg Arity, GenOpArg Dst, GenOpArg* Puts, GenOpArg S1, GenOpArg S2, GenOpArg S3, GenOpArg S4, GenOpArg S5) diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab index 35e10f3e63..f141407c0e 100644 --- a/erts/emulator/beam/bif.tab +++ b/erts/emulator/beam/bif.tab @@ -41,7 +41,7 @@ # -gcbif erlang:abs/1 +ubif erlang:abs/1 bif erlang:adler32/1 bif erlang:adler32/2 bif erlang:adler32_combine/3 @@ -66,7 +66,7 @@ bif erlang:exit/2 bif erlang:exit_signal/2 bif erlang:external_size/1 bif erlang:external_size/2 -gcbif erlang:float/1 +ubif erlang:float/1 bif erlang:float_to_list/1 bif erlang:float_to_list/2 bif erlang:fun_info/2 @@ -84,7 +84,7 @@ bif erlang:phash2/2 ubif erlang:hd/1 bif erlang:integer_to_list/1 bif erlang:is_alive/0 -gcbif erlang:length/1 +ubif erlang:length/1 bif erlang:link/1 bif erlang:list_to_atom/1 bif erlang:list_to_binary/1 @@ -133,10 +133,10 @@ bif erlang:processes/0 bif erlang:put/2 bif erlang:register/2 bif erlang:registered/0 -gcbif erlang:round/1 +ubif erlang:round/1 ubif erlang:self/0 bif erlang:setelement/3 -gcbif erlang:size/1 +ubif erlang:size/1 bif erlang:spawn/3 bif erlang:spawn_link/3 bif erlang:split_binary/2 @@ -146,7 +146,7 @@ bif erlang:term_to_binary/2 bif erlang:throw/1 bif erlang:time/0 ubif erlang:tl/1 -gcbif erlang:trunc/1 +ubif erlang:trunc/1 bif erlang:tuple_to_list/1 bif erlang:universaltime/0 bif erlang:universaltime_to_localtime/1 @@ -481,8 +481,8 @@ bif erlang:list_to_existing_atom/1 # ubif erlang:is_bitstring/1 ubif erlang:tuple_size/1 -gcbif erlang:byte_size/1 -gcbif erlang:bit_size/1 +ubif erlang:byte_size/1 +ubif erlang:bit_size/1 bif erlang:list_to_bitstring/1 bif erlang:bitstring_to_list/1 @@ -534,8 +534,8 @@ bif erlang:binary_to_term/2 # # The searching/splitting/substituting thingies # -gcbif erlang:binary_part/2 -gcbif erlang:binary_part/3 +ubif erlang:binary_part/2 +ubif erlang:binary_part/3 bif binary:compile_pattern/1 bif binary:match/2 @@ -623,7 +623,7 @@ bif io:printable_range/0 bif re:inspect/2 ubif erlang:is_map/1 -gcbif erlang:map_size/1 +ubif erlang:map_size/1 bif maps:find/2 bif maps:get/2 bif maps:from_list/1 @@ -671,8 +671,8 @@ bif maps:take/2 # New in 20.0 # -gcbif erlang:floor/1 -gcbif erlang:ceil/1 +ubif erlang:floor/1 +ubif erlang:ceil/1 bif math:floor/1 bif math:ceil/1 bif math:fmod/2 diff --git a/erts/emulator/beam/bif_instrs.tab b/erts/emulator/beam/bif_instrs.tab index 00854471a9..3abd062552 100644 --- a/erts/emulator/beam/bif_instrs.tab +++ b/erts/emulator/beam/bif_instrs.tab @@ -31,13 +31,20 @@ CALL_GUARD_BIF(BF, TmpReg, Dst) { Eterm result; +#ifdef DEBUG + Eterm* orig_htop = HTOP; + Eterm* orig_stop = E; +#endif ERTS_DBG_CHK_REDS(c_p, FCALLS); c_p->fcalls = FCALLS; PROCESS_MAIN_CHK_LOCKS(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); ERTS_CHK_MBUF_SZ(c_p); + DEBUG_SWAPOUT; result = (*$BF)(c_p, $TmpReg, I); + DEBUG_SWAPIN; + ASSERT(orig_htop == HTOP && orig_stop == E); ERTS_CHK_MBUF_SZ(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); @@ -55,7 +62,7 @@ CALL_GUARD_BIF(BF, TmpReg, Dst) { // to the code for the next clause. We don't support tracing // of guard BIFs. -bif1(Fail, Bif, Src, Dst) { +i_bif1(Fail, Bif, Src, Dst) { ErtsBifFunc bf; Eterm tmp_reg[1]; @@ -70,7 +77,7 @@ bif1(Fail, Bif, Src, Dst) { // Guard BIF in body. It can fail like any BIF. No trace support. // -bif1_body(Bif, Src, Dst) { +i_bif1_body(Bif, Src, Dst) { ErtsBifFunc bf; Eterm tmp_reg[1]; @@ -118,154 +125,38 @@ i_bif2_body(Bif, Src1, Src2, Dst) { goto post_error_handling; } -// -// Garbage-collecting BIF with one argument in either guard or body. -// - -i_gc_bif1(Fail, Bif, Src, Live, Dst) { - typedef Eterm (*GcBifFunction)(Process*, Eterm*, Uint); - GcBifFunction bf; - Eterm result; - Uint live = (Uint) $Live; - - x(live) = $Src; - bf = (GcBifFunction) $Bif; - ERTS_DBG_CHK_REDS(c_p, FCALLS); - c_p->fcalls = FCALLS; - SWAPOUT; - PROCESS_MAIN_CHK_LOCKS(c_p); - ERTS_UNREQ_PROC_MAIN_LOCK(c_p); - ERTS_CHK_MBUF_SZ(c_p); - result = (*bf)(c_p, reg, live); - ERTS_CHK_MBUF_SZ(c_p); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - ERTS_REQ_PROC_MAIN_LOCK(c_p); - PROCESS_MAIN_CHK_LOCKS(c_p); - SWAPIN; - ERTS_HOLE_CHECK(c_p); - FCALLS = c_p->fcalls; - ERTS_DBG_CHK_REDS(c_p, FCALLS); - if (ERTS_LIKELY(is_value(result))) { - $REFRESH_GEN_DEST(); - $Dst = result; - $NEXT0(); - } - if (ERTS_LIKELY($Fail != 0)) { /* Handle error in guard. */ - $JUMP($Fail); - } - - /* Handle error in body. */ - x(0) = x(live); - I = handle_error(c_p, I, reg, gcbif2mfa((void *) bf)); - goto post_error_handling; -} - -// -// Garbage-collecting BIF with two arguments in either guard or body. -// - -i_gc_bif2(Fail, Bif, Live, Src1, Src2, Dst) { - typedef Eterm (*GcBifFunction)(Process*, Eterm*, Uint); - GcBifFunction bf; - Eterm result; - Uint live = (Uint) $Live; - - /* - * XXX This calling convention does not make sense. 'live' - * should point out the first argument, not the second - * (i.e. 'live' should not be incremented below). - */ - x(live) = $Src1; - x(live+1) = $Src2; - live++; +// Guard BIF in head (binary_part/3). On failure, ignore the error +// and jump to the code for the next clause. We don't support tracing +// of guard BIFs. - bf = (GcBifFunction) $Bif; - ERTS_DBG_CHK_REDS(c_p, FCALLS); - c_p->fcalls = FCALLS; - SWAPOUT; - PROCESS_MAIN_CHK_LOCKS(c_p); - ERTS_UNREQ_PROC_MAIN_LOCK(c_p); - ERTS_CHK_MBUF_SZ(c_p); - result = (*bf)(c_p, reg, live); - ERTS_CHK_MBUF_SZ(c_p); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - ERTS_REQ_PROC_MAIN_LOCK(c_p); - PROCESS_MAIN_CHK_LOCKS(c_p); - SWAPIN; - ERTS_HOLE_CHECK(c_p); - FCALLS = c_p->fcalls; - ERTS_DBG_CHK_REDS(c_p, FCALLS); - if (ERTS_LIKELY(is_value(result))) { - $REFRESH_GEN_DEST(); - $Dst = result; - $NEXT0(); - } +i_bif3(Fail, Bif, Src1, Src2, Src3, Dst) { + ErtsBifFunc bf; + Eterm tmp_reg[3]; - if (ERTS_LIKELY($Fail != 0)) { /* Handle error in guard. */ - $JUMP($Fail); - } + tmp_reg[0] = $Src1; + tmp_reg[1] = $Src2; + tmp_reg[2] = $Src3; + bf = (BifFunction) $Bif; + $CALL_GUARD_BIF(bf, tmp_reg, $Dst); - /* Handle error in body. */ - live--; - x(0) = x(live); - x(1) = x(live+1); - I = handle_error(c_p, I, reg, gcbif2mfa((void *) bf)); - goto post_error_handling; + $FAIL($Fail); } -// -// Garbage-collecting BIF with three arguments in either guard or body. -// - -i_gc_bif3(Fail, Bif, Live, Src2, Src3, Dst) { - typedef Eterm (*GcBifFunction)(Process*, Eterm*, Uint); - GcBifFunction bf; - Eterm result; - Uint live = (Uint) $Live; +// Guard BIF in body with three arguments (binary_part/3). - /* - * XXX This calling convention does not make sense. 'live' - * should point out the first argument, not the third - * (i.e. 'live' should not be incremented below). - */ - x(live) = x(SCRATCH_X_REG); - x(live+1) = $Src2; - x(live+2) = $Src3; - live += 2; +i_bif3_body(Bif, Src1, Src2, Src3, Dst) { + ErtsBifFunc bf; + Eterm tmp_reg[3]; - bf = (GcBifFunction) $Bif; - ERTS_DBG_CHK_REDS(c_p, FCALLS); - c_p->fcalls = FCALLS; + tmp_reg[0] = $Src1; + tmp_reg[1] = $Src2; + tmp_reg[2] = $Src3; + bf = (BifFunction) $Bif; + $CALL_GUARD_BIF(bf, tmp_reg, $Dst); + reg[0] = tmp_reg[0]; + reg[1] = tmp_reg[1]; SWAPOUT; - PROCESS_MAIN_CHK_LOCKS(c_p); - ERTS_UNREQ_PROC_MAIN_LOCK(c_p); - ERTS_CHK_MBUF_SZ(c_p); - result = (*bf)(c_p, reg, live); - ERTS_CHK_MBUF_SZ(c_p); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - ERTS_REQ_PROC_MAIN_LOCK(c_p); - PROCESS_MAIN_CHK_LOCKS(c_p); - SWAPIN; - ERTS_HOLE_CHECK(c_p); - FCALLS = c_p->fcalls; - ERTS_DBG_CHK_REDS(c_p, FCALLS); - if (ERTS_LIKELY(is_value(result))) { - $REFRESH_GEN_DEST(); - $Dst = result; - $NEXT0(); - } - - /* Handle error in guard. */ - if (ERTS_LIKELY($Fail != 0)) { - $JUMP($Fail); - } - - /* Handle error in body. */ - live -= 2; - x(0) = x(live); - x(1) = x(live+1); - x(2) = x(live+2); - I = handle_error(c_p, I, reg, gcbif2mfa((void *) bf)); + I = handle_error(c_p, I, reg, ubif2mfa((void *) bf)); goto post_error_handling; } diff --git a/erts/emulator/beam/erl_arith.c b/erts/emulator/beam/erl_arith.c index 144fb56ea5..68d1cd989e 100644 --- a/erts/emulator/beam/erl_arith.c +++ b/erts/emulator/beam/erl_arith.c @@ -52,19 +52,11 @@ static ERTS_INLINE void maybe_shrink(Process* p, Eterm* hp, Eterm res, Uint allo Uint actual; if (is_immed(res)) { - if (p->heap <= hp && hp < p->htop) { - p->htop = hp; - } - else { - erts_heap_frag_shrink(p, hp); - } + ASSERT(!(p->heap <= hp && hp < p->htop)); + erts_heap_frag_shrink(p, hp); } else if ((actual = bignum_header_arity(*hp)+1) < alloc) { - if (p->heap <= hp && hp < p->htop) { - p->htop = hp+actual; - } - else { - erts_heap_frag_shrink(p, hp+actual); - } + ASSERT(!(p->heap <= hp && hp < p->htop)); + erts_heap_frag_shrink(p, hp+actual); } } @@ -246,7 +238,7 @@ shift(Process* p, Eterm arg1, Eterm arg2, int right) BIF_ERROR(p, SYSTEM_LIMIT); } need = BIG_NEED_SIZE(ires+1); - bigp = HAlloc(p, need); + bigp = HeapFragOnlyAlloc(p, need); arg1 = big_lshift(arg1, i, bigp); maybe_shrink(p, bigp, arg1, need); if (is_nil(arg1)) { @@ -298,7 +290,7 @@ BIF_RETTYPE bnot_1(BIF_ALIST_1) ret = make_small(~signed_val(BIF_ARG_1)); } else if (is_big(BIF_ARG_1)) { Uint need = BIG_NEED_SIZE(big_size(BIF_ARG_1)+1); - Eterm* bigp = HAlloc(BIF_P, need); + Eterm* bigp = HeapFragOnlyAlloc(BIF_P, need); ret = big_bnot(BIF_ARG_1, bigp); maybe_shrink(BIF_P, bigp, ret, need); @@ -343,7 +335,7 @@ erts_mixed_plus(Process* p, Eterm arg1, Eterm arg2) if (IS_SSMALL(ires)) { return make_small(ires); } else { - hp = HAlloc(p, 2); + hp = HeapFragOnlyAlloc(p, 2); res = small_to_big(ires, hp); return res; } @@ -400,7 +392,7 @@ erts_mixed_plus(Process* p, Eterm arg1, Eterm arg2) sz2 = big_size(arg2); sz = MAX(sz1, sz2)+1; need_heap = BIG_NEED_SIZE(sz); - hp = HAlloc(p, need_heap); + hp = HeapFragOnlyAlloc(p, need_heap); res = big_plus(arg1, arg2, hp); maybe_shrink(p, hp, res, need_heap); if (is_nil(res)) { @@ -446,7 +438,7 @@ erts_mixed_plus(Process* p, Eterm arg1, Eterm arg2) do_float: f1.fd = f1.fd + f2.fd; ERTS_FP_ERROR(p, f1.fd, goto badarith); - hp = HAlloc(p, FLOAT_SIZE_OBJECT); + hp = HeapFragOnlyAlloc(p, FLOAT_SIZE_OBJECT); res = make_float(hp); PUT_DOUBLE(f1, hp); return res; @@ -488,7 +480,7 @@ erts_mixed_minus(Process* p, Eterm arg1, Eterm arg2) if (IS_SSMALL(ires)) { return make_small(ires); } else { - hp = HAlloc(p, 2); + hp = HeapFragOnlyAlloc(p, 2); res = small_to_big(ires, hp); return res; } @@ -534,7 +526,7 @@ erts_mixed_minus(Process* p, Eterm arg1, Eterm arg2) sz2 = big_size(arg2); sz = MAX(sz1, sz2)+1; need_heap = BIG_NEED_SIZE(sz); - hp = HAlloc(p, need_heap); + hp = HeapFragOnlyAlloc(p, need_heap); res = big_minus(arg1, arg2, hp); maybe_shrink(p, hp, res, need_heap); if (is_nil(res)) { @@ -589,7 +581,7 @@ erts_mixed_minus(Process* p, Eterm arg1, Eterm arg2) do_float: f1.fd = f1.fd - f2.fd; ERTS_FP_ERROR(p, f1.fd, goto badarith); - hp = HAlloc(p, FLOAT_SIZE_OBJECT); + hp = HeapFragOnlyAlloc(p, FLOAT_SIZE_OBJECT); res = make_float(hp); PUT_DOUBLE(f1, hp); return res; @@ -657,7 +649,7 @@ erts_mixed_times(Process* p, Eterm arg1, Eterm arg2) hdr = big_res[0]; arity = bignum_header_arity(hdr); ASSERT(arity == 1 || arity == 2); - hp = HAlloc(p, arity+1); + hp = HeapFragOnlyAlloc(p, arity+1); res = make_big(hp); *hp++ = hdr; *hp++ = big_res[1]; @@ -726,7 +718,7 @@ erts_mixed_times(Process* p, Eterm arg1, Eterm arg2) do_big: need_heap = BIG_NEED_SIZE(sz); - hp = HAlloc(p, need_heap); + hp = HeapFragOnlyAlloc(p, need_heap); res = big_times(arg1, arg2, hp); /* @@ -779,7 +771,7 @@ erts_mixed_times(Process* p, Eterm arg1, Eterm arg2) do_float: f1.fd = f1.fd * f2.fd; ERTS_FP_ERROR(p, f1.fd, goto badarith); - hp = HAlloc(p, FLOAT_SIZE_OBJECT); + hp = HeapFragOnlyAlloc(p, FLOAT_SIZE_OBJECT); res = make_float(hp); PUT_DOUBLE(f1, hp); return res; @@ -905,7 +897,7 @@ erts_mixed_div(Process* p, Eterm arg1, Eterm arg2) do_float: f1.fd = f1.fd / f2.fd; ERTS_FP_ERROR(p, f1.fd, goto badarith); - hp = HAlloc(p, FLOAT_SIZE_OBJECT); + hp = HeapFragOnlyAlloc(p, FLOAT_SIZE_OBJECT); PUT_DOUBLE(f1, hp); return make_float(hp); default: @@ -957,7 +949,7 @@ erts_int_div(Process* p, Eterm arg1, Eterm arg2) ires = big_size(arg2); need = BIG_NEED_SIZE(i-ires+1) + BIG_NEED_SIZE(i); - hp = HAlloc(p, need); + hp = HeapFragOnlyAlloc(p, need); arg1 = big_div(arg1, arg2, hp); maybe_shrink(p, hp, arg1, need); if (is_nil(arg1)) { @@ -1004,7 +996,7 @@ erts_int_rem(Process* p, Eterm arg1, Eterm arg2) arg1 = SMALL_ZERO; } else if (ires > 0) { Uint need = BIG_NEED_SIZE(big_size(arg1)); - Eterm* hp = HAlloc(p, need); + Eterm* hp = HeapFragOnlyAlloc(p, need); arg1 = big_rem(arg1, arg2, hp); maybe_shrink(p, hp, arg1, need); @@ -1041,7 +1033,7 @@ Eterm erts_band(Process* p, Eterm arg1, Eterm arg2) return THE_NON_VALUE; } need = BIG_NEED_SIZE(MAX(big_size(arg1), big_size(arg2)) + 1); - hp = HAlloc(p, need); + hp = HeapFragOnlyAlloc(p, need); arg1 = big_band(arg1, arg2, hp); ASSERT(is_not_nil(arg1)); maybe_shrink(p, hp, arg1, need); @@ -1069,7 +1061,7 @@ Eterm erts_bor(Process* p, Eterm arg1, Eterm arg2) return THE_NON_VALUE; } need = BIG_NEED_SIZE(MAX(big_size(arg1), big_size(arg2)) + 1); - hp = HAlloc(p, need); + hp = HeapFragOnlyAlloc(p, need); arg1 = big_bor(arg1, arg2, hp); ASSERT(is_not_nil(arg1)); maybe_shrink(p, hp, arg1, need); @@ -1097,7 +1089,7 @@ Eterm erts_bxor(Process* p, Eterm arg1, Eterm arg2) return THE_NON_VALUE; } need = BIG_NEED_SIZE(MAX(big_size(arg1), big_size(arg2)) + 1); - hp = HAlloc(p, need); + hp = HeapFragOnlyAlloc(p, need); arg1 = big_bxor(arg1, arg2, hp); ASSERT(is_not_nil(arg1)); maybe_shrink(p, hp, arg1, need); @@ -1110,7 +1102,7 @@ Eterm erts_bnot(Process* p, Eterm arg) if (is_big(arg)) { Uint need = BIG_NEED_SIZE(big_size(arg)+1); - Eterm* bigp = HAlloc(p, need); + Eterm* bigp = HeapFragOnlyAlloc(p, need); ret = big_bnot(arg, bigp); maybe_shrink(p, bigp, ret, need); @@ -1125,924 +1117,6 @@ Eterm erts_bnot(Process* p, Eterm arg) return ret; } -#define ERTS_NEED_GC(p, need) ((HEAP_LIMIT((p)) - HEAP_TOP((p))) <= (need)) - -static ERTS_INLINE void -trim_heap(Process* p, Eterm* hp, Eterm res) -{ - if (is_immed(res)) { - ASSERT(p->heap <= hp && hp <= p->htop); - p->htop = hp; - } else { - Eterm* new_htop; - ASSERT(is_big(res)); - new_htop = hp + bignum_header_arity(*hp) + 1; - ASSERT(p->heap <= new_htop && new_htop <= p->htop); - p->htop = new_htop; - } - ASSERT(p->heap <= p->htop && p->htop <= p->stop); -} - -/* - * The functions that follow are called from the emulator loop. - * They are not allowed to allocate heap fragments, but must do - * a garbage collection if there is insufficient heap space. - */ - -#define erts_heap_frag_shrink horrible error -#define maybe_shrink horrible error - -Eterm -erts_gc_mixed_plus(Process* p, Eterm* reg, Uint live) -{ - Eterm arg1; - Eterm arg2; - DECLARE_TMP(tmp_big1,0,p); - DECLARE_TMP(tmp_big2,1,p); - Eterm res; - Eterm hdr; - FloatDef f1, f2; - dsize_t sz1, sz2, sz; - int need_heap; - Eterm* hp; - Sint ires; - - arg1 = reg[live]; - arg2 = reg[live+1]; - ERTS_FP_CHECK_INIT(p); - switch (arg1 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg1 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - ires = signed_val(arg1) + signed_val(arg2); - if (IS_SSMALL(ires)) { - return make_small(ires); - } else { - if (ERTS_NEED_GC(p, 2)) { - erts_garbage_collect(p, 2, reg, live); - } - hp = p->htop; - p->htop += 2; - res = small_to_big(ires, hp); - return res; - } - default: - badarith: - p->freason = BADARITH; - return THE_NON_VALUE; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - if (arg1 == SMALL_ZERO) { - return arg2; - } - arg1 = small_to_big(signed_val(arg1), tmp_big1); - goto do_big; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - f1.fd = signed_val(arg1); - GET_DOUBLE(arg2, f2); - goto do_float; - default: - goto badarith; - } - } - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg1); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - if (arg2 == SMALL_ZERO) { - return arg1; - } - arg2 = small_to_big(signed_val(arg2), tmp_big2); - goto do_big; - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - do_big: - sz1 = big_size(arg1); - sz2 = big_size(arg2); - sz = MAX(sz1, sz2)+1; - need_heap = BIG_NEED_SIZE(sz); - if (ERTS_NEED_GC(p, need_heap)) { - erts_garbage_collect(p, need_heap, reg, live+2); - if (ARG_IS_NOT_TMP(arg1,tmp_big1)) { - arg1 = reg[live]; - } - if (ARG_IS_NOT_TMP(arg2,tmp_big2)) { - arg2 = reg[live+1]; - } - } - hp = p->htop; - p->htop += need_heap; - res = big_plus(arg1, arg2, hp); - trim_heap(p, hp, res); - if (is_nil(res)) { - p->freason = SYSTEM_LIMIT; - return THE_NON_VALUE; - } - return res; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - if (big_to_double(arg1, &f1.fd) < 0) { - goto badarith; - } - GET_DOUBLE(arg2, f2); - goto do_float; - default: - goto badarith; - } - } - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - f2.fd = signed_val(arg2); - goto do_float; - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - if (big_to_double(arg2, &f2.fd) < 0) { - goto badarith; - } - goto do_float; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - GET_DOUBLE(arg2, f2); - - do_float: - f1.fd = f1.fd + f2.fd; - ERTS_FP_ERROR(p, f1.fd, goto badarith); - if (ERTS_NEED_GC(p, FLOAT_SIZE_OBJECT)) { - erts_garbage_collect(p, FLOAT_SIZE_OBJECT, reg, live); - } - hp = p->htop; - p->htop += FLOAT_SIZE_OBJECT; - res = make_float(hp); - PUT_DOUBLE(f1, hp); - return res; - default: - goto badarith; - } - default: - goto badarith; - } - } - default: - goto badarith; - } -} - -Eterm -erts_gc_mixed_minus(Process* p, Eterm* reg, Uint live) -{ - Eterm arg1; - Eterm arg2; - DECLARE_TMP(tmp_big1,0,p); - DECLARE_TMP(tmp_big2,1,p); - Eterm hdr; - Eterm res; - FloatDef f1, f2; - dsize_t sz1, sz2, sz; - int need_heap; - Eterm* hp; - Sint ires; - - arg1 = reg[live]; - arg2 = reg[live+1]; - ERTS_FP_CHECK_INIT(p); - switch (arg1 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg1 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - ires = signed_val(arg1) - signed_val(arg2); - if (IS_SSMALL(ires)) { - return make_small(ires); - } else { - if (ERTS_NEED_GC(p, 2)) { - erts_garbage_collect(p, 2, reg, live); - } - hp = p->htop; - p->htop += 2; - res = small_to_big(ires, hp); - return res; - } - default: - badarith: - p->freason = BADARITH; - return THE_NON_VALUE; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - arg1 = small_to_big(signed_val(arg1), tmp_big1); - goto do_big; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - f1.fd = signed_val(arg1); - GET_DOUBLE(arg2, f2); - goto do_float; - default: - goto badarith; - } - } - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg1); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - if (arg2 == SMALL_ZERO) { - return arg1; - } - arg2 = small_to_big(signed_val(arg2), tmp_big2); - - do_big: - sz1 = big_size(arg1); - sz2 = big_size(arg2); - sz = MAX(sz1, sz2)+1; - need_heap = BIG_NEED_SIZE(sz); - if (ERTS_NEED_GC(p, need_heap)) { - erts_garbage_collect(p, need_heap, reg, live+2); - if (ARG_IS_NOT_TMP(arg1,tmp_big1)) { - arg1 = reg[live]; - } - if (ARG_IS_NOT_TMP(arg2,tmp_big2)) { - arg2 = reg[live+1]; - } - } - hp = p->htop; - p->htop += need_heap; - res = big_minus(arg1, arg2, hp); - trim_heap(p, hp, res); - if (is_nil(res)) { - p->freason = SYSTEM_LIMIT; - return THE_NON_VALUE; - } - return res; - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - goto do_big; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - if (big_to_double(arg1, &f1.fd) < 0) { - goto badarith; - } - GET_DOUBLE(arg2, f2); - goto do_float; - default: - goto badarith; - } - } - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - f2.fd = signed_val(arg2); - goto do_float; - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - if (big_to_double(arg2, &f2.fd) < 0) { - goto badarith; - } - goto do_float; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - GET_DOUBLE(arg2, f2); - - do_float: - f1.fd = f1.fd - f2.fd; - ERTS_FP_ERROR(p, f1.fd, goto badarith); - if (ERTS_NEED_GC(p, FLOAT_SIZE_OBJECT)) { - erts_garbage_collect(p, FLOAT_SIZE_OBJECT, reg, live); - } - hp = p->htop; - p->htop += FLOAT_SIZE_OBJECT; - res = make_float(hp); - PUT_DOUBLE(f1, hp); - return res; - default: - goto badarith; - } - default: - goto badarith; - } - } - default: - goto badarith; - } -} - -Eterm -erts_gc_mixed_times(Process* p, Eterm* reg, Uint live) -{ - Eterm arg1; - Eterm arg2; - DECLARE_TMP(tmp_big1,0,p); - DECLARE_TMP(tmp_big2,1,p); - Eterm hdr; - Eterm res; - FloatDef f1, f2; - dsize_t sz1, sz2, sz; - int need_heap; - Eterm* hp; - - arg1 = reg[live]; - arg2 = reg[live+1]; - ERTS_FP_CHECK_INIT(p); - switch (arg1 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg1 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - if ((arg1 == SMALL_ZERO) || (arg2 == SMALL_ZERO)) { - return(SMALL_ZERO); - } else if (arg1 == SMALL_ONE) { - return(arg2); - } else if (arg2 == SMALL_ONE) { - return(arg1); - } else { - DeclareTmpHeap(big_res,3,p); - UseTmpHeap(3,p); - - /* - * The following code is optimized for the case that - * result is small (which should be the most common case - * in practice). - */ - res = small_times(signed_val(arg1), signed_val(arg2), - big_res); - if (is_small(res)) { - UnUseTmpHeap(3,p); - return res; - } else { - /* - * The result is a a big number. - * Allocate a heap fragment and copy the result. - * Be careful to allocate exactly what we need - * to not leave any holes. - */ - Uint arity; - Uint need; - - ASSERT(is_big(res)); - hdr = big_res[0]; - arity = bignum_header_arity(hdr); - ASSERT(arity == 1 || arity == 2); - need = arity + 1; - if (ERTS_NEED_GC(p, need)) { - erts_garbage_collect(p, need, reg, live); - } - hp = p->htop; - p->htop += need; - res = make_big(hp); - *hp++ = hdr; - *hp++ = big_res[1]; - if (arity > 1) { - *hp = big_res[2]; - } - UnUseTmpHeap(3,p); - return res; - } - } - default: - badarith: - p->freason = BADARITH; - return THE_NON_VALUE; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - if (arg1 == SMALL_ZERO) - return(SMALL_ZERO); - if (arg1 == SMALL_ONE) - return(arg2); - arg1 = small_to_big(signed_val(arg1), tmp_big1); - sz = 2 + big_size(arg2); - goto do_big; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - f1.fd = signed_val(arg1); - GET_DOUBLE(arg2, f2); - goto do_float; - default: - goto badarith; - } - } - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg1); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - if (arg2 == SMALL_ZERO) - return(SMALL_ZERO); - if (arg2 == SMALL_ONE) - return(arg1); - arg2 = small_to_big(signed_val(arg2), tmp_big2); - sz = 2 + big_size(arg1); - goto do_big; - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - sz1 = big_size(arg1); - sz2 = big_size(arg2); - sz = sz1 + sz2; - - do_big: - need_heap = BIG_NEED_SIZE(sz); - if (ERTS_NEED_GC(p, need_heap)) { - erts_garbage_collect(p, need_heap, reg, live+2); - if (ARG_IS_NOT_TMP(arg1,tmp_big1)) { - arg1 = reg[live]; - } - if (ARG_IS_NOT_TMP(arg2,tmp_big2)) { - arg2 = reg[live+1]; - } - } - hp = p->htop; - p->htop += need_heap; - res = big_times(arg1, arg2, hp); - trim_heap(p, hp, res); - - /* - * Note that the result must be big in this case, since - * at least one operand was big to begin with, and - * the absolute value of the other is > 1. - */ - - if (is_nil(res)) { - p->freason = SYSTEM_LIMIT; - return THE_NON_VALUE; - } - return res; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - if (big_to_double(arg1, &f1.fd) < 0) { - goto badarith; - } - GET_DOUBLE(arg2, f2); - goto do_float; - default: - goto badarith; - } - } - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - f2.fd = signed_val(arg2); - goto do_float; - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - if (big_to_double(arg2, &f2.fd) < 0) { - goto badarith; - } - goto do_float; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - GET_DOUBLE(arg2, f2); - - do_float: - f1.fd = f1.fd * f2.fd; - ERTS_FP_ERROR(p, f1.fd, goto badarith); - if (ERTS_NEED_GC(p, FLOAT_SIZE_OBJECT)) { - erts_garbage_collect(p, FLOAT_SIZE_OBJECT, reg, live); - } - hp = p->htop; - p->htop += FLOAT_SIZE_OBJECT; - res = make_float(hp); - PUT_DOUBLE(f1, hp); - return res; - default: - goto badarith; - } - default: - goto badarith; - } - } - default: - goto badarith; - } -} - -Eterm -erts_gc_mixed_div(Process* p, Eterm* reg, Uint live) -{ - Eterm arg1; - Eterm arg2; - FloatDef f1, f2; - Eterm* hp; - Eterm hdr; - - arg1 = reg[live]; - arg2 = reg[live+1]; - ERTS_FP_CHECK_INIT(p); - switch (arg1 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg1 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - f1.fd = signed_val(arg1); - f2.fd = signed_val(arg2); - goto do_float; - default: - badarith: - p->freason = BADARITH; - return THE_NON_VALUE; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - f1.fd = signed_val(arg1); - if (big_to_double(arg2, &f2.fd) < 0) { - goto badarith; - } - goto do_float; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - f1.fd = signed_val(arg1); - GET_DOUBLE(arg2, f2); - goto do_float; - default: - goto badarith; - } - } - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg1); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - if (big_to_double(arg1, &f1.fd) < 0) { - goto badarith; - } - f2.fd = signed_val(arg2); - goto do_float; - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - if (big_to_double(arg1, &f1.fd) < 0 || - big_to_double(arg2, &f2.fd) < 0) { - goto badarith; - } - goto do_float; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - if (big_to_double(arg1, &f1.fd) < 0) { - goto badarith; - } - GET_DOUBLE(arg2, f2); - goto do_float; - default: - goto badarith; - } - } - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - switch (arg2 & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_IMMED1: - switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - f2.fd = signed_val(arg2); - goto do_float; - default: - goto badarith; - } - case TAG_PRIMARY_BOXED: - hdr = *boxed_val(arg2); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - if (big_to_double(arg2, &f2.fd) < 0) { - goto badarith; - } - goto do_float; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): - GET_DOUBLE(arg1, f1); - GET_DOUBLE(arg2, f2); - - do_float: - f1.fd = f1.fd / f2.fd; - ERTS_FP_ERROR(p, f1.fd, goto badarith); - if (ERTS_NEED_GC(p, FLOAT_SIZE_OBJECT)) { - erts_garbage_collect(p, FLOAT_SIZE_OBJECT, reg, live); - } - hp = p->htop; - p->htop += FLOAT_SIZE_OBJECT; - PUT_DOUBLE(f1, hp); - return make_float(hp); - default: - goto badarith; - } - default: - goto badarith; - } - } - default: - goto badarith; - } -} - -Eterm -erts_gc_int_div(Process* p, Eterm* reg, Uint live) -{ - Eterm arg1; - Eterm arg2; - DECLARE_TMP(tmp_big1,0,p); - DECLARE_TMP(tmp_big2,1,p); - int ires; - - arg1 = reg[live]; - arg2 = reg[live+1]; - switch (NUMBER_CODE(arg1, arg2)) { - case SMALL_SMALL: - /* This case occurs if the most negative fixnum is divided by -1. */ - ASSERT(arg2 == make_small(-1)); - arg1 = small_to_big(signed_val(arg1), tmp_big1); - /*FALLTHROUGH*/ - case BIG_SMALL: - arg2 = small_to_big(signed_val(arg2), tmp_big2); - goto L_big_div; - case SMALL_BIG: - if (arg1 != make_small(MIN_SMALL)) { - return SMALL_ZERO; - } - arg1 = small_to_big(signed_val(arg1), tmp_big1); - /*FALLTHROUGH*/ - case BIG_BIG: - L_big_div: - ires = big_ucomp(arg1, arg2); - if (ires < 0) { - arg1 = SMALL_ZERO; - } else if (ires == 0) { - arg1 = (big_sign(arg1) == big_sign(arg2)) ? - SMALL_ONE : SMALL_MINUS_ONE; - } else { - Eterm* hp; - int i = big_size(arg1); - Uint need; - - ires = big_size(arg2); - need = BIG_NEED_SIZE(i-ires+1) + BIG_NEED_SIZE(i); - if (ERTS_NEED_GC(p, need)) { - erts_garbage_collect(p, need, reg, live+2); - if (ARG_IS_NOT_TMP(arg1,tmp_big1)) { - arg1 = reg[live]; - } - if (ARG_IS_NOT_TMP(arg2,tmp_big2)) { - arg2 = reg[live+1]; - } - } - hp = p->htop; - p->htop += need; - arg1 = big_div(arg1, arg2, hp); - trim_heap(p, hp, arg1); - if (is_nil(arg1)) { - p->freason = SYSTEM_LIMIT; - return THE_NON_VALUE; - } - } - return arg1; - default: - p->freason = BADARITH; - return THE_NON_VALUE; - } -} - -Eterm -erts_gc_int_rem(Process* p, Eterm* reg, Uint live) -{ - Eterm arg1; - Eterm arg2; - DECLARE_TMP(tmp_big1,0,p); - DECLARE_TMP(tmp_big2,1,p); - int ires; - - arg1 = reg[live]; - arg2 = reg[live+1]; - switch (NUMBER_CODE(arg1, arg2)) { - case BIG_SMALL: - arg2 = small_to_big(signed_val(arg2), tmp_big2); - goto L_big_rem; - case SMALL_BIG: - if (arg1 != make_small(MIN_SMALL)) { - return arg1; - } else { - Eterm tmp; - tmp = small_to_big(signed_val(arg1), tmp_big1); - if ((ires = big_ucomp(tmp, arg2)) == 0) { - return SMALL_ZERO; - } else { - ASSERT(ires < 0); - return arg1; - } - } - /* All paths returned */ - case BIG_BIG: - L_big_rem: - ires = big_ucomp(arg1, arg2); - if (ires == 0) { - arg1 = SMALL_ZERO; - } else if (ires > 0) { - Eterm* hp; - Uint need = BIG_NEED_SIZE(big_size(arg1)); - - if (ERTS_NEED_GC(p, need)) { - erts_garbage_collect(p, need, reg, live+2); - if (ARG_IS_NOT_TMP(arg1,tmp_big1)) { - arg1 = reg[live]; - } - if (ARG_IS_NOT_TMP(arg2,tmp_big2)) { - arg2 = reg[live+1]; - } - } - hp = p->htop; - p->htop += need; - arg1 = big_rem(arg1, arg2, hp); - trim_heap(p, hp, arg1); - if (is_nil(arg1)) { - p->freason = SYSTEM_LIMIT; - return THE_NON_VALUE; - } - } - return arg1; - default: - p->freason = BADARITH; - return THE_NON_VALUE; - } -} - -#define DEFINE_GC_LOGIC_FUNC(func) \ -Eterm erts_gc_##func(Process* p, Eterm* reg, Uint live) \ -{ \ - Eterm arg1; \ - Eterm arg2; \ - DECLARE_TMP(tmp_big1,0,p); \ - DECLARE_TMP(tmp_big2,1,p); \ - Eterm* hp; \ - int need; \ - \ - arg1 = reg[live]; \ - arg2 = reg[live+1]; \ - switch (NUMBER_CODE(arg1, arg2)) { \ - case SMALL_BIG: \ - arg1 = small_to_big(signed_val(arg1), tmp_big1); \ - need = BIG_NEED_SIZE(big_size(arg2) + 1); \ - if (ERTS_NEED_GC(p, need)) { \ - erts_garbage_collect(p, need, reg, live+2); \ - arg2 = reg[live+1]; \ - } \ - break; \ - case BIG_SMALL: \ - arg2 = small_to_big(signed_val(arg2), tmp_big2); \ - need = BIG_NEED_SIZE(big_size(arg1) + 1); \ - if (ERTS_NEED_GC(p, need)) { \ - erts_garbage_collect(p, need, reg, live+2); \ - arg1 = reg[live]; \ - } \ - break; \ - case BIG_BIG: \ - need = BIG_NEED_SIZE(MAX(big_size(arg1), big_size(arg2)) + 1); \ - if (ERTS_NEED_GC(p, need)) { \ - erts_garbage_collect(p, need, reg, live+2); \ - arg1 = reg[live]; \ - arg2 = reg[live+1]; \ - } \ - break; \ - default: \ - p->freason = BADARITH; \ - return THE_NON_VALUE; \ - } \ - hp = p->htop; \ - p->htop += need; \ - arg1 = big_##func(arg1, arg2, hp); \ - trim_heap(p, hp, arg1); \ - return arg1; \ -} - -DEFINE_GC_LOGIC_FUNC(band) -DEFINE_GC_LOGIC_FUNC(bor) -DEFINE_GC_LOGIC_FUNC(bxor) - -Eterm erts_gc_bnot(Process* p, Eterm* reg, Uint live) -{ - Eterm result; - Eterm arg; - Uint need; - Eterm* bigp; - - arg = reg[live]; - if (is_not_big(arg)) { - p->freason = BADARITH; - return NIL; - } else { - need = BIG_NEED_SIZE(big_size(arg)+1); - if (ERTS_NEED_GC(p, need)) { - erts_garbage_collect(p, need, reg, live+1); - arg = reg[live]; - } - bigp = p->htop; - p->htop += need; - result = big_bnot(arg, bigp); - trim_heap(p, bigp, result); - if (is_nil(result)) { - p->freason = SYSTEM_LIMIT; - return NIL; - } - } - return result; -} - /* Needed to remove compiler optimization */ double erts_get_positive_zero_float() { return 0.0f; diff --git a/erts/emulator/beam/erl_bif_binary.c b/erts/emulator/beam/erl_bif_binary.c index d465f6c6b9..ca1ba55b22 100644 --- a/erts/emulator/beam/erl_bif_binary.c +++ b/erts/emulator/beam/erl_bif_binary.c @@ -1970,9 +1970,7 @@ BIF_RETTYPE erts_binary_part(Process *p, Eterm binary, Eterm epos, Eterm elen) goto badarg; } - - - hp = HAlloc(p, ERL_SUB_BIN_SIZE); + hp = HeapFragOnlyAlloc(p, ERL_SUB_BIN_SIZE); ERTS_GET_REAL_BIN(binary, orig, offset, bit_offset, bit_size); sb = (ErlSubBin *) hp; @@ -1990,100 +1988,6 @@ BIF_RETTYPE erts_binary_part(Process *p, Eterm binary, Eterm epos, Eterm elen) BIF_ERROR(p, BADARG); } -#define ERTS_NEED_GC(p, need) ((HEAP_LIMIT((p)) - HEAP_TOP((p))) <= (need)) - -BIF_RETTYPE erts_gc_binary_part(Process *p, Eterm *reg, Eterm live, int range_is_tuple) -{ - Uint pos; - Sint len; - size_t orig_size; - Eterm orig; - Uint offset; - Uint bit_offset; - Uint bit_size; - Eterm* hp; - ErlSubBin* sb; - Eterm binary; - Eterm *tp; - Eterm epos, elen; - int extra_args; - - - if (range_is_tuple) { - Eterm tpl = reg[live]; - extra_args = 1; - if (is_not_tuple(tpl)) { - goto badarg; - } - tp = tuple_val(tpl); - if (arityval(*tp) != 2) { - goto badarg; - } - - epos = tp[1]; - elen = tp[2]; - } else { - extra_args = 2; - epos = reg[live-1]; - elen = reg[live]; - } - binary = reg[live-extra_args]; - - if (is_not_binary(binary)) { - goto badarg; - } - if (!term_to_Uint(epos, &pos)) { - goto badarg; - } - if (!term_to_Sint(elen, &len)) { - goto badarg; - } - if (len < 0) { - Uint lentmp = -(Uint)len; - /* overflow */ - if ((Sint)lentmp < 0) { - goto badarg; - } - len = lentmp; - if (len > pos) { - goto badarg; - } - pos -= len; - } - /* overflow */ - if ((pos + len) < pos || (len > 0 && (pos + len) == pos)) { - goto badarg; - } - if ((orig_size = binary_size(binary)) < pos || - orig_size < (pos + len)) { - goto badarg; - } - - if (ERTS_NEED_GC(p, ERL_SUB_BIN_SIZE)) { - erts_garbage_collect(p, ERL_SUB_BIN_SIZE, reg, live+1-extra_args); /* I don't need the tuple - or indices any more */ - binary = reg[live-extra_args]; - } - - hp = p->htop; - p->htop += ERL_SUB_BIN_SIZE; - - ERTS_GET_REAL_BIN(binary, orig, offset, bit_offset, bit_size); - - sb = (ErlSubBin *) hp; - sb->thing_word = HEADER_SUB_BIN; - sb->size = len; - sb->offs = offset + pos; - sb->orig = orig; - sb->bitoffs = bit_offset; - sb->bitsize = 0; - sb->is_writable = 0; - - BIF_RET(make_binary(sb)); - - badarg: - BIF_ERROR(p, BADARG); -} /************************************************************* * The actual guard BIFs are in erl_bif_guard.c * but the implementation of both the non-gc and the gc diff --git a/erts/emulator/beam/erl_bif_guard.c b/erts/emulator/beam/erl_bif_guard.c index 8a5c6ada6c..84783e71a0 100644 --- a/erts/emulator/beam/erl_bif_guard.c +++ b/erts/emulator/beam/erl_bif_guard.c @@ -19,7 +19,12 @@ */ /* - * Numeric guard BIFs. + * This file implements the former GC BIFs. They used to do a GC when + * they needed heap space. Because of changes to the implementation of + * literals, those BIFs are now allowed to allocate heap fragments + * (using HeapFragOnlyAlloc()). Note that they must NOT call HAlloc(), + * because the caller does not do any SWAPIN / SWAPOUT (that is, + * HEAP_TOP(p) and HEAP_LIMIT(p) contain stale values). */ #ifdef HAVE_CONFIG_H @@ -36,15 +41,8 @@ #include "erl_binary.h" #include "erl_map.h" -static Eterm gc_double_to_integer(Process* p, double x, Eterm* reg, Uint live); - static Eterm double_to_integer(Process* p, double x); -/* - * Guard BIFs called using apply/3 and guard BIFs that never build - * anything on the heap. - */ - BIF_RETTYPE abs_1(BIF_ALIST_1) { Eterm res; @@ -56,7 +54,7 @@ BIF_RETTYPE abs_1(BIF_ALIST_1) i0 = signed_val(BIF_ARG_1); i = ERTS_SMALL_ABS(i0); if (i0 == MIN_SMALL) { - hp = HAlloc(BIF_P, BIG_UINT_HEAP_SIZE); + hp = HeapFragOnlyAlloc(BIF_P, BIG_UINT_HEAP_SIZE); BIF_RET(uint_to_big(i, hp)); } else { BIF_RET(make_small(i)); @@ -68,7 +66,7 @@ BIF_RETTYPE abs_1(BIF_ALIST_1) int sz = big_arity(BIF_ARG_1) + 1; Uint* x; - hp = HAlloc(BIF_P, sz); /* See note at beginning of file */ + hp = HeapFragOnlyAlloc(BIF_P, sz); /* See note at beginning of file */ sz--; res = make_big(hp); x = big_val(BIF_ARG_1); @@ -83,7 +81,7 @@ BIF_RETTYPE abs_1(BIF_ALIST_1) GET_DOUBLE(BIF_ARG_1, f); if (f.fd < 0.0) { - hp = HAlloc(BIF_P, FLOAT_SIZE_OBJECT); + hp = HeapFragOnlyAlloc(BIF_P, FLOAT_SIZE_OBJECT); f.fd = fabs(f.fd); res = make_float(hp); PUT_DOUBLE(f, hp); @@ -116,7 +114,7 @@ BIF_RETTYPE float_1(BIF_ALIST_1) } else if (big_to_double(BIF_ARG_1, &f.fd) < 0) { goto badarg; } - hp = HAlloc(BIF_P, FLOAT_SIZE_OBJECT); + hp = HeapFragOnlyAlloc(BIF_P, FLOAT_SIZE_OBJECT); res = make_float(hp); PUT_DOUBLE(f, hp); BIF_RET(res); @@ -229,7 +227,7 @@ BIF_RETTYPE size_1(BIF_ALIST_1) if (IS_USMALL(0, sz)) { return make_small(sz); } else { - Eterm* hp = HAlloc(BIF_P, BIG_UINT_HEAP_SIZE); + Eterm* hp = HeapFragOnlyAlloc(BIF_P, BIG_UINT_HEAP_SIZE); BIF_RET(uint_to_big(sz, hp)); } } @@ -252,12 +250,12 @@ BIF_RETTYPE bit_size_1(BIF_ALIST_1) if (IS_USMALL(0,low_bits)) { BIF_RET(make_small(low_bits)); } else { - Eterm* hp = HAlloc(BIF_P, BIG_UINT_HEAP_SIZE); + Eterm* hp = HeapFragOnlyAlloc(BIF_P, BIG_UINT_HEAP_SIZE); BIF_RET(uint_to_big(low_bits, hp)); } } else { Uint sz = BIG_UINT_HEAP_SIZE+1; - Eterm* hp = HAlloc(BIF_P, sz); + Eterm* hp = HeapFragOnlyAlloc(BIF_P, sz); hp[0] = make_pos_bignum_header(sz-1); BIG_DIGIT(hp,0) = low_bits; BIG_DIGIT(hp,1) = high_bits; @@ -281,7 +279,7 @@ BIF_RETTYPE byte_size_1(BIF_ALIST_1) if (IS_USMALL(0, bytesize)) { BIF_RET(make_small(bytesize)); } else { - Eterm* hp = HAlloc(BIF_P, BIG_UINT_HEAP_SIZE); + Eterm* hp = HeapFragOnlyAlloc(BIF_P, BIG_UINT_HEAP_SIZE); BIF_RET(uint_to_big(bytesize, hp)); } } else { @@ -325,7 +323,7 @@ double_to_integer(Process* p, double x) } sz = BIG_NEED_SIZE(ds); /* number of words including arity */ - hp = HAlloc(p, sz); + hp = HeapFragOnlyAlloc(p, sz); res = make_big(hp); xp = (ErtsDigit*) (hp + 1); @@ -371,389 +369,3 @@ BIF_RETTYPE binary_part_2(BIF_ALIST_2) badarg: BIF_ERROR(BIF_P,BADARG); } - - -/* - * The following code is used when a guard that may build on the - * heap is called directly. They must not use HAlloc(), but must - * do a garbage collection if there is insufficient heap space. - * - * Important note: All error checking MUST be done before doing - * a garbage collection. The compiler assumes that all registers - * are still valid if a guard BIF generates an exception. - */ - -#define ERTS_NEED_GC(p, need) ((HEAP_LIMIT((p)) - HEAP_TOP((p))) <= (need)) - -Eterm erts_gc_length_1(Process* p, Eterm* reg, Uint live) -{ - Eterm list = reg[live]; - int i; - - if (is_nil(list)) - return SMALL_ZERO; - i = 0; - while (is_list(list)) { - i++; - list = CDR(list_val(list)); - } - if (is_not_nil(list)) { - BIF_ERROR(p, BADARG); - } - return make_small(i); -} - -Eterm erts_gc_size_1(Process* p, Eterm* reg, Uint live) -{ - Eterm arg = reg[live]; - if (is_tuple(arg)) { - Eterm* tupleptr = tuple_val(arg); - return make_small(arityval(*tupleptr)); - } else if (is_binary(arg)) { - Uint sz = binary_size(arg); - if (IS_USMALL(0, sz)) { - return make_small(sz); - } else { - Eterm* hp; - if (ERTS_NEED_GC(p, BIG_UINT_HEAP_SIZE)) { - erts_garbage_collect(p, BIG_UINT_HEAP_SIZE, reg, live); - } - hp = p->htop; - p->htop += BIG_UINT_HEAP_SIZE; - return uint_to_big(sz, hp); - } - } - BIF_ERROR(p, BADARG); -} - -Eterm erts_gc_bit_size_1(Process* p, Eterm* reg, Uint live) -{ - Eterm arg = reg[live]; - if (is_binary(arg)) { - Uint low_bits; - Uint bytesize; - Uint high_bits; - bytesize = binary_size(arg); - high_bits = bytesize >> ((sizeof(Uint) * 8)-3); - low_bits = (bytesize << 3) + binary_bitsize(arg); - if (high_bits == 0) { - if (IS_USMALL(0,low_bits)) { - return make_small(low_bits); - } else { - Eterm* hp; - if (ERTS_NEED_GC(p, BIG_UINT_HEAP_SIZE)) { - erts_garbage_collect(p, BIG_UINT_HEAP_SIZE, reg, live); - } - hp = p->htop; - p->htop += BIG_UINT_HEAP_SIZE; - return uint_to_big(low_bits, hp); - } - } else { - Uint sz = BIG_UINT_HEAP_SIZE+1; - Eterm* hp; - if (ERTS_NEED_GC(p, sz)) { - erts_garbage_collect(p, sz, reg, live); - } - hp = p->htop; - p->htop += sz; - hp[0] = make_pos_bignum_header(sz-1); - BIG_DIGIT(hp,0) = low_bits; - BIG_DIGIT(hp,1) = high_bits; - return make_big(hp); - } - } else { - BIF_ERROR(p, BADARG); - } -} - -Eterm erts_gc_byte_size_1(Process* p, Eterm* reg, Uint live) -{ - Eterm arg = reg[live]; - if (is_binary(arg)) { - Uint bytesize = binary_size(arg); - if (binary_bitsize(arg) > 0) { - bytesize++; - } - if (IS_USMALL(0, bytesize)) { - return make_small(bytesize); - } else { - Eterm* hp; - if (ERTS_NEED_GC(p, BIG_UINT_HEAP_SIZE)) { - erts_garbage_collect(p, BIG_UINT_HEAP_SIZE, reg, live); - } - hp = p->htop; - p->htop += BIG_UINT_HEAP_SIZE; - return uint_to_big(bytesize, hp); - } - } else { - BIF_ERROR(p, BADARG); - } -} - -Eterm erts_gc_map_size_1(Process* p, Eterm* reg, Uint live) -{ - Eterm arg = reg[live]; - if (is_flatmap(arg)) { - flatmap_t *mp = (flatmap_t*)flatmap_val(arg); - return make_small(flatmap_get_size(mp)); - } else if (is_hashmap(arg)) { - Eterm* hp; - Uint size; - size = hashmap_size(arg); - if (IS_USMALL(0, size)) { - return make_small(size); - } - if (ERTS_NEED_GC(p, BIG_UINT_HEAP_SIZE)) { - erts_garbage_collect(p, BIG_UINT_HEAP_SIZE, reg, live); - } - hp = p->htop; - p->htop += BIG_UINT_HEAP_SIZE; - return uint_to_big(size, hp); - } - p->fvalue = arg; - BIF_ERROR(p, BADMAP); -} - -Eterm erts_gc_abs_1(Process* p, Eterm* reg, Uint live) -{ - Eterm arg; - Eterm res; - Sint i0, i; - Eterm* hp; - - arg = reg[live]; - - /* integer arguments */ - if (is_small(arg)) { - i0 = signed_val(arg); - i = ERTS_SMALL_ABS(i0); - if (i0 == MIN_SMALL) { - if (ERTS_NEED_GC(p, BIG_UINT_HEAP_SIZE)) { - erts_garbage_collect(p, BIG_UINT_HEAP_SIZE, reg, live+1); - arg = reg[live]; - } - hp = p->htop; - p->htop += BIG_UINT_HEAP_SIZE; - return uint_to_big(i, hp); - } else { - return make_small(i); - } - } else if (is_big(arg)) { - if (!big_sign(arg)) { - return arg; - } else { - int sz = big_arity(arg) + 1; - Uint* x; - - if (ERTS_NEED_GC(p, sz)) { - erts_garbage_collect(p, sz, reg, live+1); - arg = reg[live]; - } - hp = p->htop; - p->htop += sz; - sz--; - res = make_big(hp); - x = big_val(arg); - *hp++ = make_pos_bignum_header(sz); - x++; /* skip thing */ - while(sz--) - *hp++ = *x++; - return res; - } - } else if (is_float(arg)) { - FloatDef f; - - GET_DOUBLE(arg, f); - if (f.fd < 0.0) { - if (ERTS_NEED_GC(p, FLOAT_SIZE_OBJECT)) { - erts_garbage_collect(p, FLOAT_SIZE_OBJECT, reg, live+1); - arg = reg[live]; - } - hp = p->htop; - p->htop += FLOAT_SIZE_OBJECT; - f.fd = fabs(f.fd); - res = make_float(hp); - PUT_DOUBLE(f, hp); - return res; - } - else - return arg; - } - BIF_ERROR(p, BADARG); -} - -Eterm erts_gc_float_1(Process* p, Eterm* reg, Uint live) -{ - Eterm arg; - Eterm res; - Eterm* hp; - FloatDef f; - - /* check args */ - arg = reg[live]; - if (is_not_integer(arg)) { - if (is_float(arg)) { - return arg; - } else { - badarg: - BIF_ERROR(p, BADARG); - } - } - if (is_small(arg)) { - Sint i = signed_val(arg); - f.fd = i; /* use "C"'s auto casting */ - } else if (big_to_double(arg, &f.fd) < 0) { - goto badarg; - } - if (ERTS_NEED_GC(p, FLOAT_SIZE_OBJECT)) { - erts_garbage_collect(p, FLOAT_SIZE_OBJECT, reg, live+1); - arg = reg[live]; - } - hp = p->htop; - p->htop += FLOAT_SIZE_OBJECT; - res = make_float(hp); - PUT_DOUBLE(f, hp); - return res; -} - -Eterm erts_gc_round_1(Process* p, Eterm* reg, Uint live) -{ - Eterm arg; - FloatDef f; - - arg = reg[live]; - if (is_not_float(arg)) { - if (is_integer(arg)) { - return arg; - } - BIF_ERROR(p, BADARG); - } - GET_DOUBLE(arg, f); - - return gc_double_to_integer(p, round(f.fd), reg, live); -} - -Eterm erts_gc_trunc_1(Process* p, Eterm* reg, Uint live) -{ - Eterm arg; - FloatDef f; - - arg = reg[live]; - if (is_not_float(arg)) { - if (is_integer(arg)) { - return arg; - } - BIF_ERROR(p, BADARG); - } - /* get the float */ - GET_DOUBLE(arg, f); - - /* truncate it and return the resultant integer */ - return gc_double_to_integer(p, (f.fd >= 0.0) ? floor(f.fd) : ceil(f.fd), - reg, live); -} - -Eterm erts_gc_floor_1(Process* p, Eterm* reg, Uint live) -{ - Eterm arg; - FloatDef f; - - arg = reg[live]; - if (is_not_float(arg)) { - if (is_integer(arg)) { - return arg; - } - BIF_ERROR(p, BADARG); - } - GET_DOUBLE(arg, f); - return gc_double_to_integer(p, floor(f.fd), reg, live); -} - -Eterm erts_gc_ceil_1(Process* p, Eterm* reg, Uint live) -{ - Eterm arg; - FloatDef f; - - arg = reg[live]; - if (is_not_float(arg)) { - if (is_integer(arg)) { - return arg; - } - BIF_ERROR(p, BADARG); - } - GET_DOUBLE(arg, f); - return gc_double_to_integer(p, ceil(f.fd), reg, live); -} - -static Eterm -gc_double_to_integer(Process* p, double x, Eterm* reg, Uint live) -{ - int is_negative; - int ds; - ErtsDigit* xp; - int i; - Eterm res; - size_t sz; - Eterm* hp; - double dbase; - - if ((x < (double) (MAX_SMALL+1)) && (x > (double) (MIN_SMALL-1))) { - Sint xi = x; - return make_small(xi); - } - - if (x >= 0) { - is_negative = 0; - } else { - is_negative = 1; - x = -x; - } - - /* Unscale & (calculate exponent) */ - ds = 0; - dbase = ((double)(D_MASK)+1); - while(x >= 1.0) { - x /= dbase; /* "shift" right */ - ds++; - } - sz = BIG_NEED_SIZE(ds); /* number of words including arity */ - if (ERTS_NEED_GC(p, sz)) { - erts_garbage_collect(p, sz, reg, live); - } - hp = p->htop; - p->htop += sz; - res = make_big(hp); - xp = (ErtsDigit*) (hp + 1); - - for (i = ds-1; i >= 0; i--) { - ErtsDigit d; - - x *= dbase; /* "shift" left */ - d = x; /* trunc */ - xp[i] = d; /* store digit */ - x -= d; /* remove integer part */ - } - while ((ds & (BIG_DIGITS_PER_WORD-1)) != 0) { - xp[ds++] = 0; - } - - if (is_negative) { - *hp = make_neg_bignum_header(sz-1); - } else { - *hp = make_pos_bignum_header(sz-1); - } - return res; -} - -/******************************************************************************** - * binary_part guards. The actual implementation is in erl_bif_binary.c - ********************************************************************************/ -Eterm erts_gc_binary_part_3(Process* p, Eterm* reg, Uint live) -{ - return erts_gc_binary_part(p,reg,live,0); -} - -Eterm erts_gc_binary_part_2(Process* p, Eterm* reg, Uint live) -{ - return erts_gc_binary_part(p,reg,live,1); -} diff --git a/erts/emulator/beam/erl_binary.h b/erts/emulator/beam/erl_binary.h index 08edb43c49..4bf77988f7 100644 --- a/erts/emulator/beam/erl_binary.h +++ b/erts/emulator/beam/erl_binary.h @@ -278,7 +278,6 @@ Eterm erts_bin_bytes_to_list(Eterm previous, Eterm* hp, byte* bytes, Uint size, */ BIF_RETTYPE erts_list_to_binary_bif(Process *p, Eterm arg, Export *bif); -BIF_RETTYPE erts_gc_binary_part(Process *p, Eterm *reg, Eterm live, int range_is_tuple); BIF_RETTYPE erts_binary_part(Process *p, Eterm binary, Eterm epos, Eterm elen); diff --git a/erts/emulator/beam/erl_map.c b/erts/emulator/beam/erl_map.c index 3d6c9eb43f..93816542cd 100644 --- a/erts/emulator/beam/erl_map.c +++ b/erts/emulator/beam/erl_map.c @@ -125,15 +125,20 @@ BIF_RETTYPE map_size_1(BIF_ALIST_1) { flatmap_t *mp = (flatmap_t*)flatmap_val(BIF_ARG_1); BIF_RET(make_small(flatmap_get_size(mp))); } else if (is_hashmap(BIF_ARG_1)) { - Eterm *head, *hp, res; - Uint size, hsz=0; + Eterm *head; + Uint size; head = hashmap_val(BIF_ARG_1); size = head[1]; - (void) erts_bld_uint(NULL, &hsz, size); - hp = HAlloc(BIF_P, hsz); - res = erts_bld_uint(&hp, NULL, size); - BIF_RET(res); + + /* + * As long as a small has 28 bits (on a 32-bit machine) for + * the integer itself, it is impossible to build a map whose + * size would not fit in a small. Add an assertion in case we + * ever decreases the number of bits in a small. + */ + ASSERT(IS_USMALL(0, size)); + BIF_RET(make_small(size)); } BIF_P->fvalue = BIF_ARG_1; diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h index 4089fac48e..fd46a804d3 100644 --- a/erts/emulator/beam/erl_vm.h +++ b/erts/emulator/beam/erl_vm.h @@ -146,6 +146,21 @@ (HEAP_TOP(p) = HEAP_TOP(p) + (sz), HEAP_TOP(p) - (sz)))) #endif +/* + * Always allocate in a heap fragment, never on the heap. + */ +#if defined(VALGRIND) +/* Running under valgrind, allocate exactly as much as needed.*/ +# define HeapFragOnlyAlloc(p, sz) \ + (ASSERT((sz) >= 0), \ + ErtsHAllocLockCheck(p), \ + erts_heap_alloc((p),(sz),0)) +#else +# define HeapFragOnlyAlloc(p, sz) \ + (ASSERT((sz) >= 0), \ + ErtsHAllocLockCheck(p), \ + erts_heap_alloc((p),(sz),512)) +#endif /* * Description for each instruction (defined here because the name and diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab index 349034e8ac..fbed2e56e1 100644 --- a/erts/emulator/beam/ops.tab +++ b/erts/emulator/beam/ops.tab @@ -1002,10 +1002,11 @@ bif1 Fail Bif=u$bif:erlang:get/1 Src=s Dst=d => gen_get(Src, Dst) bif2 Jump=j u$bif:erlang:element/2 S1=s S2=xy Dst=d => gen_element(Jump, S1, S2, Dst) -bif1 p Bif S1 Dst => bif1_body Bif S1 Dst +bif1 p Bif S1 Dst => i_bif1_body Bif S1 Dst +bif1 Fail=f Bif S1 Dst => i_bif1 Fail Bif S1 Dst -bif2 p Bif S1 S2 Dst => i_bif2_body Bif S1 S2 Dst -bif2 Fail Bif S1 S2 Dst => i_bif2 Fail Bif S1 S2 Dst +bif2 p Bif S1 S2 Dst => i_bif2_body Bif S1 S2 Dst +bif2 Fail=f Bif S1 S2 Dst => i_bif2 Fail Bif S1 S2 Dst i_get_hash c I d i_get s d @@ -1023,10 +1024,12 @@ i_fast_element xy j? I d i_element xy j? s d -bif1 f? b s d -bif1_body b s d +i_bif1 f? b s d +i_bif1_body b s d i_bif2 f? b s s d i_bif2_body b s s d +i_bif3 f? b s s s d +i_bif3_body b s s s d # # Internal calls. @@ -1499,80 +1502,80 @@ gc_bif2 Fail Live u$bif:erlang:sminus/2 S1 S2 Dst => \ # # Optimize addition and subtraction of small literals using -# the i_increment/4 instruction (in bodies, not in guards). +# the i_increment/3 instruction (in bodies, not in guards). # gen_plus p Live Int=i Reg=d Dst => \ - gen_increment(Reg, Int, Live, Dst) + gen_increment(Reg, Int, Dst) gen_plus p Live Reg=d Int=i Dst => \ - gen_increment(Reg, Int, Live, Dst) + gen_increment(Reg, Int, Dst) gen_minus p Live Reg=d Int=i Dst | negation_is_small(Int) => \ - gen_increment_from_minus(Reg, Int, Live, Dst) + gen_increment_from_minus(Reg, Int, Dst) # -# GCing arithmetic instructions. +# Arithmetic instructions. # -gen_plus Fail Live S1 S2 Dst => i_plus S1 S2 Fail Live Dst +gen_plus Fail Live S1 S2 Dst => i_plus S1 S2 Fail Dst -gen_minus Fail Live S1 S2 Dst => i_minus S1 S2 Fail Live Dst +gen_minus Fail Live S1 S2 Dst => i_minus S1 S2 Fail Dst gc_bif2 Fail Live u$bif:erlang:stimes/2 S1 S2 Dst => \ - i_times Fail Live S1 S2 Dst + i_times Fail S1 S2 Dst gc_bif2 Fail Live u$bif:erlang:div/2 S1 S2 Dst => \ - i_m_div Fail Live S1 S2 Dst + i_m_div Fail S1 S2 Dst gc_bif2 Fail Live u$bif:erlang:intdiv/2 S1 S2 Dst => \ - i_int_div Fail Live S1 S2 Dst + i_int_div Fail S1 S2 Dst gc_bif2 Fail Live u$bif:erlang:rem/2 S1 S2 Dst => \ - i_rem S1 S2 Fail Live Dst + i_rem S1 S2 Fail Dst gc_bif2 Fail Live u$bif:erlang:bsl/2 S1 S2 Dst => \ - i_bsl S1 S2 Fail Live Dst + i_bsl S1 S2 Fail Dst gc_bif2 Fail Live u$bif:erlang:bsr/2 S1 S2 Dst => \ - i_bsr S1 S2 Fail Live Dst + i_bsr S1 S2 Fail Dst gc_bif2 Fail Live u$bif:erlang:band/2 S1 S2 Dst => \ - i_band S1 S2 Fail Live Dst + i_band S1 S2 Fail Dst gc_bif2 Fail Live u$bif:erlang:bor/2 S1 S2 Dst => \ - i_bor Fail Live S1 S2 Dst + i_bor Fail S1 S2 Dst gc_bif2 Fail Live u$bif:erlang:bxor/2 S1 S2 Dst => \ - i_bxor Fail Live S1 S2 Dst + i_bxor Fail S1 S2 Dst -gc_bif1 Fail I u$bif:erlang:bnot/1 Src Dst=d => i_int_bnot Fail Src I Dst +gc_bif1 Fail Live u$bif:erlang:bnot/1 Src Dst=d => i_int_bnot Fail Src Dst -i_increment rxy W t d +i_increment rxy W d -i_plus x xy j? t d -i_plus s s j? t d +i_plus x xy j? d +i_plus s s j? d -i_minus x x j? t d -i_minus s s j? t d +i_minus x x j? d +i_minus s s j? d -i_times j? t s s d +i_times j? s s d -i_m_div j? t s s d -i_int_div j? t s s d +i_m_div j? s s d +i_int_div j? s s d -i_rem x x j? t d -i_rem s s j? t d +i_rem x x j? d +i_rem s s j? d -i_bsl s s j? t d -i_bsr s s j? t d +i_bsl s s j? d +i_bsr s s j? d -i_band x c j? t d -i_band s s j? t d +i_band x c j? d +i_band s s j? d -i_bor j? I s s d -i_bxor j? I s s d +i_bor j? s s d +i_bxor j? s s d -i_int_bnot Fail Src=c Live Dst => move Src x | i_int_bnot Fail x Live Dst +i_int_bnot Fail Src=c Dst => move Src x | i_int_bnot Fail x Dst -i_int_bnot j? S t d +i_int_bnot j? S d # # Old guard BIFs that creates heap fragments are no longer allowed. @@ -1587,27 +1590,14 @@ bif1 Fail u$bif:erlang:trunc/1 s d => too_old_compiler # # Guard BIFs. # -gc_bif1 Fail I Bif Src Dst => \ - gen_guard_bif1(Fail, I, Bif, Src, Dst) +gc_bif1 p Live Bif Src Dst => i_bif1_body Bif Src Dst +gc_bif1 Fail=f Live Bif Src Dst => i_bif1 Fail Bif Src Dst -gc_bif2 Fail I Bif S1 S2 Dst => \ - gen_guard_bif2(Fail, I, Bif, S1, S2, Dst) +gc_bif2 p Live Bif S1 S2 Dst => i_bif2_body Bif S1 S2 Dst +gc_bif2 Fail=f Live Bif S1 S2 Dst => i_bif2 Fail Bif S1 S2 Dst -gc_bif3 Fail I Bif S1 S2 S3 Dst => \ - gen_guard_bif3(Fail, I, Bif, S1, S2, S3, Dst) - -i_gc_bif1 j? W s t? d - -i_gc_bif2 j? W t? s s d - -ii_gc_bif3/7 - -# A specific instruction can only have 6 operands, so we must -# pass one of the arguments in an x register. -ii_gc_bif3 Fail Bif Live S1 S2 S3 Dst => \ - move S1 x | i_gc_bif3 Fail Bif Live S2 S3 Dst - -i_gc_bif3 j? W t? s s d +gc_bif3 p Live Bif S1 S2 S3 Dst => i_bif3_body Bif S1 S2 S3 Dst +gc_bif3 Fail=f Live Bif S1 S2 S3 Dst => i_bif3 Fail Bif S1 S2 S3 Dst # # The following instruction is specially handled in beam_load.c |