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-rw-r--r--erts/emulator/beam/instrs.tab963
1 files changed, 963 insertions, 0 deletions
diff --git a/erts/emulator/beam/instrs.tab b/erts/emulator/beam/instrs.tab
new file mode 100644
index 0000000000..f19027b1ec
--- /dev/null
+++ b/erts/emulator/beam/instrs.tab
@@ -0,0 +1,963 @@
+// -*- c -*-
+//
+// %CopyrightBegin%
+//
+// Copyright Ericsson AB 2017. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// %CopyrightEnd%
+//
+
+// Stack manipulation instructions
+
+allocate(NeedStack, Live) {
+ $AH($NeedStack, 0, $Live);
+}
+
+allocate_heap(NeedStack, NeedHeap, Live) {
+ $AH($NeedStack, $NeedHeap, $Live);
+}
+
+allocate_init(NeedStack, Live, Y) {
+ $AH($NeedStack, 0, $Live);
+ make_blank($Y);
+}
+
+allocate_zero(NeedStack, Live) {
+ Eterm* ptr;
+ int i = $NeedStack;
+ $AH(i, 0, $Live);
+ for (ptr = E + i; ptr > E; ptr--) {
+ make_blank(*ptr);
+ }
+}
+
+allocate_heap_zero(NeedStack, NeedHeap, Live) {
+ Eterm* ptr;
+ int i = $NeedStack;
+ $AH(i, $NeedHeap, $Live);
+ for (ptr = E + i; ptr > E; ptr--) {
+ make_blank(*ptr);
+ }
+}
+
+// This instruction is probably never used (because it is combined with a
+// a return). However, a future compiler might for some reason emit a
+// deallocate not followed by a return, and that should work.
+
+deallocate(Deallocate) {
+ //| -no_prefetch
+ SET_CP(c_p, (BeamInstr *) cp_val(*E));
+ E = ADD_BYTE_OFFSET(E, $Deallocate);
+}
+
+deallocate_return(Deallocate) {
+ //| -no_next
+ int words_to_pop = $Deallocate;
+ SET_I((BeamInstr *) cp_val(*E));
+ E = ADD_BYTE_OFFSET(E, words_to_pop);
+ CHECK_TERM(x(0));
+ DispatchReturn;
+}
+
+move_deallocate_return(Src, Deallocate) {
+ x(0) = $Src;
+ $deallocate_return($Deallocate);
+}
+
+// Call instructions
+
+DISPATCH_REL(CallDest) {
+ //| -no_next
+ $SET_I_REL($CallDest);
+ DTRACE_LOCAL_CALL(c_p, erts_code_to_codemfa(I));
+ Dispatch();
+}
+
+DISPATCH_ABS(CallDest) {
+ //| -no_next
+ SET_I((BeamInstr *) $CallDest);
+ DTRACE_LOCAL_CALL(c_p, erts_code_to_codemfa(I));
+ Dispatch();
+}
+
+i_call(CallDest) {
+ SET_CP(c_p, $NEXT_INSTRUCTION);
+ $DISPATCH_REL($CallDest);
+}
+
+move_call(Src, CallDest) {
+ x(0) = $Src;
+ SET_CP(c_p, $NEXT_INSTRUCTION);
+ $DISPATCH_REL($CallDest);
+}
+
+i_call_last(CallDest, Deallocate) {
+ $deallocate($Deallocate);
+ $DISPATCH_REL($CallDest);
+}
+
+move_call_last(Src, CallDest, Deallocate) {
+ x(0) = $Src;
+ $i_call_last($CallDest, $Deallocate);
+}
+
+i_call_only(CallDest) {
+ $DISPATCH_REL($CallDest);
+}
+
+move_call_only(Src, CallDest) {
+ x(0) = $Src;
+ $i_call_only($CallDest);
+}
+
+DISPATCHX(Dest) {
+ //| -no_next
+ DTRACE_GLOBAL_CALL_FROM_EXPORT(c_p, $Dest);
+ // Dispatchx assumes the Export* is in Arg(0)
+ I = (&$Dest) - 1;
+ Dispatchx();
+}
+
+i_call_ext(Dest) {
+ SET_CP(c_p, $NEXT_INSTRUCTION);
+ $DISPATCHX($Dest);
+}
+
+i_move_call_ext(Src, Dest) {
+ x(0) = $Src;
+ $i_call_ext($Dest);
+}
+
+i_call_ext_only(Dest) {
+ $DISPATCHX($Dest);
+}
+
+i_move_call_ext_only(Dest, Src) {
+ x(0) = $Src;
+ $i_call_ext_only($Dest);
+}
+
+i_call_ext_last(Dest, Deallocate) {
+ $deallocate($Deallocate);
+ $DISPATCHX($Dest);
+}
+
+i_move_call_ext_last(Dest, StackOffset, Src) {
+ x(0) = $Src;
+ $i_call_ext_last($Dest, $StackOffset);
+}
+
+APPLY(I, Deallocate, Next) {
+ //| -no_next
+ HEAVY_SWAPOUT;
+ $Next = apply(c_p, reg, $I, $Deallocate);
+ HEAVY_SWAPIN;
+}
+
+HANDLE_APPLY_ERROR() {
+ I = handle_error(c_p, I, reg, &bif_export[BIF_apply_3]->info.mfa);
+ goto post_error_handling;
+}
+
+i_apply() {
+ BeamInstr *next;
+ $APPLY(NULL, 0, next);
+ if (ERTS_LIKELY(next != NULL)) {
+ SET_CP(c_p, $NEXT_INSTRUCTION);
+ $DISPATCH_ABS(next);
+ }
+ $HANDLE_APPLY_ERROR();
+}
+
+i_apply_last(Deallocate) {
+ BeamInstr *next;
+ $APPLY(I, $Deallocate, next);
+ if (ERTS_LIKELY(next != NULL)) {
+ $deallocate($Deallocate);
+ $DISPATCH_ABS(next);
+ }
+ $HANDLE_APPLY_ERROR();
+}
+
+i_apply_only() {
+ BeamInstr *next;
+ $APPLY(I, 0, next);
+ if (ERTS_LIKELY(next != NULL)) {
+ $DISPATCH_ABS(next);
+ }
+ $HANDLE_APPLY_ERROR();
+}
+
+FIXED_APPLY(Arity, I, Deallocate, Next) {
+ //| -no_next
+ HEAVY_SWAPOUT;
+ $Next = fixed_apply(c_p, reg, $Arity, $I, $Deallocate);
+ HEAVY_SWAPIN;
+}
+
+apply(Arity) {
+ BeamInstr *next;
+ $FIXED_APPLY($Arity, NULL, 0, next);
+ if (ERTS_LIKELY(next != NULL)) {
+ SET_CP(c_p, $NEXT_INSTRUCTION);
+ $DISPATCH_ABS(next);
+ }
+ $HANDLE_APPLY_ERROR();
+}
+
+apply_last(Arity, Deallocate) {
+ BeamInstr *next;
+ $FIXED_APPLY($Arity, I, $Deallocate, next);
+ if (ERTS_LIKELY(next != NULL)) {
+ $deallocate($Deallocate);
+ $DISPATCH_ABS(next);
+ }
+ $HANDLE_APPLY_ERROR();
+}
+
+APPLY_FUN(Next) {
+ HEAVY_SWAPOUT;
+ $Next = apply_fun(c_p, r(0), x(1), reg);
+ HEAVY_SWAPIN;
+}
+
+HANDLE_APPLY_FUN_ERROR() {
+ goto find_func_info;
+}
+
+DISPATCH_FUN(I) {
+ SET_I($I);
+ Dispatchfun();
+}
+
+i_apply_fun() {
+ BeamInstr *next;
+ $APPLY_FUN(next);
+ if (ERTS_LIKELY(next != NULL)) {
+ SET_CP(c_p, $NEXT_INSTRUCTION);
+ $DISPATCH_FUN(next);
+ }
+ $HANDLE_APPLY_FUN_ERROR();
+}
+
+i_apply_fun_last(Deallocate) {
+ BeamInstr *next;
+ $APPLY_FUN(next);
+ if (ERTS_LIKELY(next != NULL)) {
+ $deallocate($Deallocate);
+ $DISPATCH_FUN(next);
+ }
+ $HANDLE_APPLY_FUN_ERROR();
+}
+
+i_apply_fun_only() {
+ BeamInstr *next;
+ $APPLY_FUN(next);
+ if (ERTS_LIKELY(next != NULL)) {
+ $DISPATCH_FUN(next);
+ }
+ $HANDLE_APPLY_FUN_ERROR();
+}
+
+CALL_FUN(Fun, Next) {
+ //| -no_next
+ HEAVY_SWAPOUT;
+ $Next = call_fun(c_p, $Fun, reg, THE_NON_VALUE);
+ HEAVY_SWAPIN;
+}
+
+i_call_fun(Fun) {
+ BeamInstr *next;
+ $CALL_FUN($Fun, next);
+ if (ERTS_LIKELY(next != NULL)) {
+ SET_CP(c_p, $NEXT_INSTRUCTION);
+ $DISPATCH_FUN(next);
+ }
+ $HANDLE_APPLY_FUN_ERROR();
+}
+
+i_call_fun_last(Fun, Deallocate) {
+ BeamInstr *next;
+ $CALL_FUN($Fun, next);
+ if (ERTS_LIKELY(next != NULL)) {
+ $deallocate($Deallocate);
+ $DISPATCH_FUN(next);
+ }
+ $HANDLE_APPLY_FUN_ERROR();
+}
+
+return() {
+ SET_I(c_p->cp);
+ DTRACE_RETURN_FROM_PC(c_p);
+
+ /*
+ * We must clear the CP to make sure that a stale value do not
+ * create a false module dependcy preventing code upgrading.
+ * It also means that we can use the CP in stack backtraces.
+ */
+ c_p->cp = 0;
+ CHECK_TERM(r(0));
+ HEAP_SPACE_VERIFIED(0);
+ DispatchReturn;
+}
+
+get_list(Src, Hd, Tl) {
+ Eterm* tmp_ptr = list_val($Src);
+ Eterm hd, tl;
+ hd = CAR(tmp_ptr);
+ tl = CDR(tmp_ptr);
+ $Hd = hd;
+ $Tl = tl;
+}
+
+i_get(Src, Dst) {
+ $Dst = erts_pd_hash_get(c_p, $Src);
+}
+
+i_get_hash(Src, Hash, Dst) {
+ $Dst = erts_pd_hash_get_with_hx(c_p, $Hash, $Src);
+}
+
+i_get_tuple_element(Src, Element, Dst) {
+ Eterm* src = ADD_BYTE_OFFSET(tuple_val($Src), $Element);
+ $Dst = *src;
+}
+
+i_get_tuple_element2(Src, Element, Dst) {
+ Eterm* src;
+ Eterm* dst;
+ Eterm E1, E2;
+ src = ADD_BYTE_OFFSET(tuple_val($Src), $Element);
+ dst = &($Dst);
+ E1 = src[0];
+ E2 = src[1];
+ dst[0] = E1;
+ dst[1] = E2;
+}
+
+i_get_tuple_element2y(Src, Element, D1, D2) {
+ Eterm* src;
+ Eterm E1, E2;
+ src = ADD_BYTE_OFFSET(tuple_val($Src), $Element);
+ E1 = src[0];
+ E2 = src[1];
+ $D1 = E1;
+ $D2 = E2;
+}
+
+i_get_tuple_element3(Src, Element, Dst) {
+ Eterm* src;
+ Eterm* dst;
+ Eterm E1, E2, E3;
+ src = ADD_BYTE_OFFSET(tuple_val($Src), $Element);
+ dst = &($Dst);
+ E1 = src[0];
+ E2 = src[1];
+ E3 = src[2];
+ dst[0] = E1;
+ dst[1] = E2;
+ dst[2] = E3;
+}
+
+i_element := element_group.fetch.execute;
+
+
+element_group.head() {
+ Eterm element_tuple;
+}
+
+element_group.fetch(Src) {
+ element_tuple = $Src;
+}
+
+element_group.execute(Fail, Index, Dst) {
+ Eterm element_index = $Index;
+ if (ERTS_LIKELY(is_small(element_index) && is_tuple(element_tuple))) {
+ Eterm* tp = tuple_val(element_tuple);
+
+ if ((signed_val(element_index) >= 1) &&
+ (signed_val(element_index) <= arityval(*tp))) {
+ $Dst = tp[signed_val(element_index)];
+ $NEXT0();
+ }
+ }
+ c_p->freason = BADARG;
+ $BIF_ERROR_ARITY_2($Fail, BIF_element_2, element_index, element_tuple);
+}
+
+i_fast_element := fast_element_group.fetch.execute;
+
+fast_element_group.head() {
+ Eterm fast_element_tuple;
+}
+
+fast_element_group.fetch(Src) {
+ fast_element_tuple = $Src;
+}
+
+fast_element_group.execute(Fail, Index, Dst) {
+ if (ERTS_LIKELY(is_tuple(fast_element_tuple))) {
+ Eterm* tp = tuple_val(fast_element_tuple);
+ Eterm pos = $Index; /* Untagged integer >= 1 */
+ if (pos <= arityval(*tp)) {
+ $Dst = tp[pos];
+ $NEXT0();
+ }
+ }
+ c_p->freason = BADARG;
+ $BIF_ERROR_ARITY_2($Fail, BIF_element_2, make_small($Index), fast_element_tuple);
+}
+
+init(Y) {
+ make_blank($Y);
+}
+
+init2(Y1, Y2) {
+ make_blank($Y1);
+ make_blank($Y2);
+}
+
+init3(Y1, Y2, Y3) {
+ make_blank($Y1);
+ make_blank($Y2);
+ make_blank($Y3);
+}
+
+i_make_fun(FunP, NumFree) {
+ HEAVY_SWAPOUT;
+ x(0) = new_fun(c_p, reg, (ErlFunEntry *) $FunP, $NumFree);
+ HEAVY_SWAPIN;
+}
+
+i_trim(Words) {
+ Uint cp = E[0];
+ E += $Words;
+ E[0] = cp;
+}
+
+move(Src, Dst) {
+ $Dst = $Src;
+}
+
+move3(S1, D1, S2, D2, S3, D3) {
+ $D1 = $S1;
+ $D2 = $S2;
+ $D3 = $S3;
+}
+
+move_dup(Src, D1, D2) {
+ $D1 = $D2 = $Src;
+}
+
+move2_par(S1, D1, S2, D2) {
+ Eterm V1, V2;
+ V1 = $S1;
+ V2 = $S2;
+ $D1 = V1;
+ $D2 = V2;
+}
+
+move_shift(Src, SD, D) {
+ Eterm V;
+ V = $Src;
+ $D = $SD;
+ $SD = V;
+}
+
+move_window3(S1, S2, S3, D) {
+ Eterm xt0, xt1, xt2;
+ Eterm* y = &$D;
+ xt0 = $S1;
+ xt1 = $S2;
+ xt2 = $S3;
+ y[0] = xt0;
+ y[1] = xt1;
+ y[2] = xt2;
+}
+
+move_window4(S1, S2, S3, S4, D) {
+ Eterm xt0, xt1, xt2, xt3;
+ Eterm* y = &$D;
+ xt0 = $S1;
+ xt1 = $S2;
+ xt2 = $S3;
+ xt3 = $S4;
+ y[0] = xt0;
+ y[1] = xt1;
+ y[2] = xt2;
+ y[3] = xt3;
+}
+
+move_window5(S1, S2, S3, S4, S5, D) {
+ Eterm xt0, xt1, xt2, xt3, xt4;
+ Eterm *y = &$D;
+ xt0 = $S1;
+ xt1 = $S2;
+ xt2 = $S3;
+ xt3 = $S4;
+ xt4 = $S5;
+ y[0] = xt0;
+ y[1] = xt1;
+ y[2] = xt2;
+ y[3] = xt3;
+ y[4] = xt4;
+}
+
+move_return(Src) {
+ //| -no_next
+ x(0) = $Src;
+ SET_I(c_p->cp);
+ c_p->cp = 0;
+ DispatchReturn;
+}
+
+move_x1(Src) {
+ x(1) = $Src;
+}
+
+move_x2(Src) {
+ x(2) = $Src;
+}
+
+node(Dst) {
+ $Dst = erts_this_node->sysname;
+}
+
+put_list(Hd, Tl, Dst) {
+ HTOP[0] = $Hd;
+ HTOP[1] = $Tl;
+ $Dst = make_list(HTOP);
+ HTOP += 2;
+}
+
+update_list(Hd, Dst) {
+ HTOP[0] = $Hd;
+ HTOP[1] = $Dst;
+ $Dst = make_list(HTOP);
+ HTOP += 2;
+}
+
+i_put_tuple := i_put_tuple.make.fill;
+
+i_put_tuple.make(Dst) {
+ $Dst = make_tuple(HTOP);
+}
+
+i_put_tuple.fill(Arity) {
+ Eterm* hp = HTOP;
+ Eterm arity = $Arity;
+
+ //| -no_next
+ *hp++ = make_arityval(arity);
+ I = $NEXT_INSTRUCTION;
+ do {
+ Eterm term = *I++;
+ switch (loader_tag(term)) {
+ case LOADER_X_REG:
+ *hp++ = x(loader_x_reg_index(term));
+ break;
+ case LOADER_Y_REG:
+ *hp++ = y(loader_y_reg_index(term));
+ break;
+ default:
+ *hp++ = term;
+ break;
+ }
+ } while (--arity != 0);
+ HTOP = hp;
+ ASSERT(VALID_INSTR(* (Eterm *)I));
+ Goto(*I);
+}
+
+self(Dst) {
+ $Dst = c_p->common.id;
+}
+
+set_tuple_element(Element, Tuple, Offset) {
+ Eterm* p;
+
+ ASSERT(is_tuple($Tuple));
+ p = (Eterm *) ((unsigned char *) tuple_val($Tuple) + $Offset);
+ *p = $Element;
+}
+
+swap(R1, R2) {
+ Eterm V = $R1;
+ $R1 = $R2;
+ $R2 = V;
+}
+
+swap_temp(R1, R2, Tmp) {
+ Eterm V = $R1;
+ $R1 = $R2;
+ $R2 = $Tmp = V;
+}
+
+test_heap(Nh, Live) {
+ $GC_TEST(0, $Nh, $Live);
+}
+
+test_heap_1_put_list(Nh, Reg) {
+ $test_heap($Nh, 1);
+ $put_list($Reg, x(0), x(0));
+}
+
+is_integer_allocate(Fail, Src, NeedStack, Live) {
+ //| -no_prefetch
+ $is_integer($Fail, $Src);
+ $AH($NeedStack, 0, $Live);
+}
+
+is_nonempty_list(Fail, Src) {
+ //| -no_prefetch
+ if (is_not_list($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_nonempty_list_test_heap(Fail, Need, Live) {
+ //| -no_prefetch
+ $is_nonempty_list($Fail, x(0));
+ $test_heap($Need, $Live);
+}
+
+is_nonempty_list_allocate(Fail, Src, Need, Live) {
+ //| -no_prefetch
+ $is_nonempty_list($Fail, $Src);
+ $AH($Need, 0, $Live);
+}
+
+is_nonempty_list_get_list(Fail, Src, Hd, Tl) {
+ //| -no_prefetch
+ $is_nonempty_list($Fail, $Src);
+ $get_list($Src, $Hd, $Tl);
+}
+
+jump(Fail) {
+ $JUMP($Fail);
+}
+
+move_jump(Fail, Src) {
+ x(0) = $Src;
+ $jump($Fail);
+}
+
+//
+// Test instructions.
+//
+
+is_atom(Fail, Src) {
+ if (is_not_atom($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_boolean(Fail, Src) {
+ if (($Src) != am_true && ($Src) != am_false) {
+ $FAIL($Fail);
+ }
+}
+
+is_binary(Fail, Src) {
+ if (is_not_binary($Src) || binary_bitsize($Src) != 0) {
+ $FAIL($Fail);
+ }
+}
+
+is_bitstring(Fail, Src) {
+ if (is_not_binary($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_float(Fail, Src) {
+ if (is_not_float($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_function(Fail, Src) {
+ if ( !(is_any_fun($Src)) ) {
+ $FAIL($Fail);
+ }
+}
+
+is_function2(Fail, Fun, Arity) {
+ if (erl_is_function(c_p, $Fun, $Arity) != am_true ) {
+ $FAIL($Fail);
+ }
+}
+
+is_integer(Fail, Src) {
+ if (is_not_integer($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_list(Fail, Src) {
+ if (is_not_list($Src) && is_not_nil($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_map(Fail, Src) {
+ if (is_not_map($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_nil(Fail, Src) {
+ if (is_not_nil($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_number(Fail, Src) {
+ if (is_not_integer($Src) && is_not_float($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_pid(Fail, Src) {
+ if (is_not_pid($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_port(Fail, Src) {
+ if (is_not_port($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_reference(Fail, Src) {
+ if (is_not_ref($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_tagged_tuple(Fail, Src, Arityval, Tag) {
+ Eterm term = $Src;
+ if (!(BEAM_IS_TUPLE(term) &&
+ (tuple_val(term))[0] == $Arityval &&
+ (tuple_val(term))[1] == $Tag)) {
+ $FAIL($Fail);
+ }
+}
+
+is_tuple(Fail, Src) {
+ if (is_not_tuple($Src)) {
+ $FAIL($Fail);
+ }
+}
+
+is_tuple_of_arity(Fail, Src, Arityval) {
+ Eterm term = $Src;
+ if (!(BEAM_IS_TUPLE(term) && *tuple_val(term) == $Arityval)) {
+ $FAIL($Fail);
+ }
+}
+
+test_arity(Fail, Pointer, Arity) {
+ if (*tuple_val($Pointer) != $Arity) {
+ $FAIL($Fail);
+ }
+}
+
+i_is_eq_exact_immed(Fail, X, Y) {
+ if ($X != $Y) {
+ $FAIL($Fail);
+ }
+}
+
+i_is_ne_exact_immed(Fail, X, Y) {
+ if ($X == $Y) {
+ $FAIL($Fail);
+ }
+}
+
+is_eq_exact(Fail, X, Y) {
+ if (!EQ($X, $Y)) {
+ $FAIL($Fail);
+ }
+}
+
+i_is_eq_exact_literal(Fail, Src, Literal) {
+ Eterm src = $Src;
+ if (is_immed(src) || !eq(src, $Literal)) {
+ $FAIL($Fail);
+ }
+}
+
+is_ne_exact(Fail, X, Y) {
+ if (EQ($X, $Y)) {
+ $FAIL($Fail);
+ }
+}
+
+i_is_ne_exact_literal(Fail, Src, Literal) {
+ Eterm src = $Src;
+ if (!is_immed(src) && eq(src, $Literal)) {
+ $FAIL($Fail);
+ }
+}
+
+is_eq(Fail, X, Y) {
+ CMP_EQ_ACTION($X, $Y, $FAIL($Fail));
+}
+
+is_ne(Fail, X, Y) {
+ CMP_NE_ACTION($X, $Y, $FAIL($Fail));
+}
+
+is_lt(Fail, X, Y) {
+ CMP_LT_ACTION($X, $Y, $FAIL($Fail));
+}
+
+is_ge(Fail, X, Y) {
+ CMP_GE_ACTION($X, $Y, $FAIL($Fail));
+}
+
+badarg(Fail) {
+ $BADARG($Fail);
+ //| -no_next;
+}
+
+badmatch(Src) {
+ c_p->fvalue = $Src;
+ c_p->freason = BADMATCH;
+ goto find_func_info;
+ //| -no_next;
+}
+
+case_end(Src) {
+ c_p->fvalue = $Src;
+ c_p->freason = EXC_CASE_CLAUSE;
+ goto find_func_info;
+ //| -no_next;
+}
+
+if_end() {
+ c_p->freason = EXC_IF_CLAUSE;
+ goto find_func_info;
+ //| -no_next;
+}
+
+system_limit(Fail) {
+ $SYSTEM_LIMIT($Fail);
+ //| -no_next;
+}
+
+catch(Y, Fail) {
+ c_p->catches++;
+ $Y = $Fail;
+}
+
+catch_end(Y) {
+ $try_end($Y);
+ if (is_non_value(r(0))) {
+ c_p->fvalue = NIL;
+ if (x(1) == am_throw) {
+ r(0) = x(2);
+ } else {
+ if (x(1) == am_error) {
+ SWAPOUT;
+ x(2) = add_stacktrace(c_p, x(2), x(3));
+ SWAPIN;
+ }
+ /* only x(2) is included in the rootset here */
+ if (E - HTOP < 3) {
+ SWAPOUT;
+ PROCESS_MAIN_CHK_LOCKS(c_p);
+ FCALLS -= erts_garbage_collect_nobump(c_p, 3, reg+2, 1, FCALLS);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
+ PROCESS_MAIN_CHK_LOCKS(c_p);
+ SWAPIN;
+ }
+ r(0) = TUPLE2(HTOP, am_EXIT, x(2));
+ HTOP += 3;
+ }
+ }
+ CHECK_TERM(r(0));
+}
+
+try_end(Y) {
+ c_p->catches--;
+ make_blank($Y);
+}
+
+try_case(Y) {
+ $try_end($Y);
+ ASSERT(is_non_value(r(0)));
+ c_p->fvalue = NIL;
+ r(0) = x(1);
+ x(1) = x(2);
+ x(2) = x(3);
+}
+
+try_case_end(Src) {
+ c_p->fvalue = $Src;
+ c_p->freason = EXC_TRY_CLAUSE;
+ goto find_func_info;
+ //| -no_next;
+}
+
+i_raise() {
+ Eterm raise_trace = x(2);
+ Eterm raise_value = x(1);
+ struct StackTrace *s;
+
+ c_p->fvalue = raise_value;
+ c_p->ftrace = raise_trace;
+ s = get_trace_from_exc(raise_trace);
+ if (s == NULL) {
+ c_p->freason = EXC_ERROR;
+ } else {
+ c_p->freason = PRIMARY_EXCEPTION(s->freason);
+ }
+ goto find_func_info;
+ //| -no_next
+}
+
+build_stacktrace() {
+ SWAPOUT;
+ x(0) = build_stacktrace(c_p, x(0));
+ SWAPIN;
+}
+
+raw_raise() {
+ Eterm class = x(0);
+ Eterm value = x(1);
+ Eterm stacktrace = x(2);
+
+ if (class == am_error) {
+ c_p->freason = EXC_ERROR & ~EXF_SAVETRACE;
+ c_p->fvalue = value;
+ c_p->ftrace = stacktrace;
+ goto find_func_info;
+ } else if (class == am_exit) {
+ c_p->freason = EXC_EXIT & ~EXF_SAVETRACE;
+ c_p->fvalue = value;
+ c_p->ftrace = stacktrace;
+ goto find_func_info;
+ } else if (class == am_throw) {
+ c_p->freason = EXC_THROWN & ~EXF_SAVETRACE;
+ c_p->fvalue = value;
+ c_p->ftrace = stacktrace;
+ goto find_func_info;
+ } else {
+ x(0) = am_badarg;
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 19:52:54 +0000