aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator
diff options
context:
space:
mode:
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/beam/beam_emu.c79
-rw-r--r--erts/emulator/beam/beam_load.c86
-rw-r--r--erts/emulator/beam/bif.tab20
-rw-r--r--erts/emulator/beam/erl_bif_binary.c125
-rw-r--r--erts/emulator/beam/erl_bif_guard.c37
-rw-r--r--erts/emulator/beam/erl_binary.h3
-rw-r--r--erts/emulator/beam/erl_vm.h3
-rw-r--r--erts/emulator/beam/global.h3
-rw-r--r--erts/emulator/beam/ops.tab33
-rw-r--r--erts/emulator/test/Makefile3
-rw-r--r--erts/emulator/test/guard_SUITE.erl160
11 files changed, 517 insertions, 35 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index ee8ba54cb8..f0b04535dd 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -2026,6 +2026,81 @@ void process_main(void)
goto post_error_handling;
}
+ OpCase(i_gc_bif2_jIId): /* Note, one less parameter than the i_gc_bif1
+ and i_gc_bif3 */
+ {
+ typedef Eterm (*GcBifFunction)(Process*, Eterm*, Uint);
+ GcBifFunction bf;
+ Eterm result;
+ Uint live = (Uint) Arg(2);
+
+ reg[0] = r(0);
+ reg[live++] = tmp_arg1;
+ reg[live] = tmp_arg2;
+ bf = (GcBifFunction) Arg(1);
+ c_p->fcalls = FCALLS;
+ SWAPOUT;
+ PROCESS_MAIN_CHK_LOCKS(c_p);
+ ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
+ result = (*bf)(c_p, reg, live);
+ ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
+ PROCESS_MAIN_CHK_LOCKS(c_p);
+ SWAPIN;
+ r(0) = reg[0];
+ ERTS_HOLE_CHECK(c_p);
+ FCALLS = c_p->fcalls;
+ if (is_value(result)) {
+ StoreBifResult(3, result);
+ }
+ if (Arg(0) != 0) {
+ SET_I((BeamInstr *) Arg(0));
+ Goto(*I);
+ }
+ reg[0] = tmp_arg1;
+ reg[1] = tmp_arg2;
+ I = handle_error(c_p, I, reg, translate_gc_bif((void *) bf));
+ goto post_error_handling;
+ }
+
+ OpCase(i_gc_bif3_jIsId):
+ {
+ typedef Eterm (*GcBifFunction)(Process*, Eterm*, Uint);
+ GcBifFunction bf;
+ Eterm arg;
+ Eterm result;
+ Uint live = (Uint) Arg(3);
+
+ GetArg1(2, arg);
+ reg[0] = r(0);
+ reg[live++] = arg;
+ reg[live++] = tmp_arg1;
+ reg[live] = tmp_arg2;
+ bf = (GcBifFunction) Arg(1);
+ c_p->fcalls = FCALLS;
+ SWAPOUT;
+ PROCESS_MAIN_CHK_LOCKS(c_p);
+ ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
+ result = (*bf)(c_p, reg, live);
+ ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
+ PROCESS_MAIN_CHK_LOCKS(c_p);
+ SWAPIN;
+ r(0) = reg[0];
+ ERTS_HOLE_CHECK(c_p);
+ FCALLS = c_p->fcalls;
+ if (is_value(result)) {
+ StoreBifResult(4, result);
+ }
+ if (Arg(0) != 0) {
+ SET_I((BeamInstr *) Arg(0));
+ Goto(*I);
+ }
+ reg[0] = arg;
+ reg[1] = tmp_arg1;
+ reg[2] = tmp_arg2;
+ I = handle_error(c_p, I, reg, translate_gc_bif((void *) bf));
+ goto post_error_handling;
+ }
+
/*
* Guards bifs and, or, xor in guards.
*/
@@ -4986,6 +5061,10 @@ translate_gc_bif(void* gcf)
return round_1;
} else if (gcf == erts_gc_trunc_1) {
return round_1;
+ } else if (gcf == erts_gc_binary_part_2) {
+ return binary_part_2;
+ } else if (gcf == erts_gc_binary_part_3) {
+ return binary_part_3;
} else {
erl_exit(1, "bad gc bif");
}
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index 5e4375fc96..597f604e22 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -486,9 +486,6 @@ static GenOp* const_select_val(LoaderState* stp, GenOpArg S, GenOpArg Fail,
GenOpArg Size, GenOpArg* Rest);
static GenOp* gen_func_info(LoaderState* stp, GenOpArg mod, GenOpArg Func,
GenOpArg arity, GenOpArg label);
-static GenOp*
-gen_guard_bif(LoaderState* stp, GenOpArg Fail, GenOpArg Live, GenOpArg Bif,
- GenOpArg Src, GenOpArg Dst);
static int freeze_code(LoaderState* stp);
@@ -3358,9 +3355,15 @@ gen_make_fun2(LoaderState* stp, GenOpArg idx)
op->next = NULL;
return op;
}
-
+/*
+ * Rewrite gc_bifs with one parameter (the common case). Utilized
+ * in ops.tab to rewrite instructions calling bif's in guards
+ * to use a garbage collecting implementation. The instructions
+ * are sometimes once again rewritten to handle literals (putting the
+ * parameter in the mostly unused r[0] before the instruction is executed).
+ */
static GenOp*
-gen_guard_bif(LoaderState* stp, GenOpArg Fail, GenOpArg Live, GenOpArg Bif,
+gen_guard_bif1(LoaderState* stp, GenOpArg Fail, GenOpArg Live, GenOpArg Bif,
GenOpArg Src, GenOpArg Dst)
{
GenOp* op;
@@ -3372,6 +3375,8 @@ gen_guard_bif(LoaderState* stp, GenOpArg Fail, GenOpArg Live, GenOpArg Bif,
op->a[0] = Fail;
op->a[1].type = TAG_u;
bf = stp->import[Bif.val].bf;
+ /* The translations here need to have a reverse counterpart in
+ beam_emu.c:translate_gc_bif for error handling to work properly. */
if (bf == length_1) {
op->a[1].val = (BeamInstr) (void *) erts_gc_length_1;
} else if (bf == size_1) {
@@ -3398,6 +3403,77 @@ gen_guard_bif(LoaderState* stp, GenOpArg Fail, GenOpArg Live, GenOpArg Bif,
return op;
}
+/*
+ * This is used by the ops.tab rule that rewrites gc_bifs with two parameters
+ * The instruction returned is then again rewritten to an i_load instruction
+ * folowed by i_gc_bif2_jIId, to handle literals properly.
+ * As opposed to the i_gc_bif1_jIsId, the instruction i_gc_bif2_jIId is
+ * always rewritten, regardless of if there actually are any literals.
+ */
+static GenOp*
+gen_guard_bif2(LoaderState* stp, GenOpArg Fail, GenOpArg Live, GenOpArg Bif,
+ GenOpArg S1, GenOpArg S2, GenOpArg Dst)
+{
+ GenOp* op;
+ BifFunction bf;
+
+ NEW_GENOP(stp, op);
+ op->op = genop_ii_gc_bif2_6;
+ op->arity = 6;
+ op->a[0] = Fail;
+ op->a[1].type = TAG_u;
+ bf = stp->import[Bif.val].bf;
+ /* The translations here need to have a reverse counterpart in
+ beam_emu.c:translate_gc_bif for error handling to work properly. */
+ if (bf == binary_part_2) {
+ op->a[1].val = (BeamInstr) (void *) erts_gc_binary_part_2;
+ } else {
+ abort();
+ }
+ op->a[2] = S1;
+ op->a[3] = S2;
+ op->a[4] = Live;
+ op->a[5] = Dst;
+ op->next = NULL;
+ return op;
+}
+
+/*
+ * This is used by the ops.tab rule that rewrites gc_bifs with three parameters
+ * The instruction returned is then again rewritten to a move instruction that
+ * uses r[0] for temp storage, followed by an i_load instruction,
+ * folowed by i_gc_bif3_jIsId, to handle literals properly. Rewriting
+ * always occur, as with the gc_bif2 counterpart.
+ */
+static GenOp*
+gen_guard_bif3(LoaderState* stp, GenOpArg Fail, GenOpArg Live, GenOpArg Bif,
+ GenOpArg S1, GenOpArg S2, GenOpArg S3, GenOpArg Dst)
+{
+ GenOp* op;
+ BifFunction bf;
+
+ NEW_GENOP(stp, op);
+ op->op = genop_ii_gc_bif3_7;
+ op->arity = 7;
+ op->a[0] = Fail;
+ op->a[1].type = TAG_u;
+ bf = stp->import[Bif.val].bf;
+ /* The translations here need to have a reverse counterpart in
+ beam_emu.c:translate_gc_bif for error handling to work properly. */
+ if (bf == binary_part_3) {
+ op->a[1].val = (BeamInstr) (void *) erts_gc_binary_part_3;
+ } else {
+ abort();
+ }
+ op->a[2] = S1;
+ op->a[3] = S2;
+ op->a[4] = S3;
+ op->a[5] = Live;
+ op->a[6] = Dst;
+ op->next = NULL;
+ return op;
+}
+
/*
* Freeze the code in memory, move the string table into place,
diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab
index 157fbb7bb6..9feb302a3d 100644
--- a/erts/emulator/beam/bif.tab
+++ b/erts/emulator/beam/bif.tab
@@ -754,12 +754,21 @@ bif erlang:load_nif/2
bif erlang:call_on_load_function/1
bif erlang:finish_after_on_load/2
-# The binary match bifs (New in R13B04 - EEP9)
+#
+# New Bifs in R13B4
+#
+bif erlang:binary_to_term/2
+
+#
+# The binary match bifs (New in R14A - EEP9)
#
#
# The searching/splitting/substituting thingies
#
+ubif erlang:binary_part/2
+ubif erlang:binary_part/3
+
bif binary:compile_pattern/1
bif binary:match/2
bif binary:match/3
@@ -770,8 +779,8 @@ bif binary:longest_common_suffix/1
bif binary:first/1
bif binary:last/1
bif binary:at/2
-bif binary:part/2
-bif binary:part/3
+bif binary:part/2 binary_binary_part_2
+bif binary:part/3 binary_binary_part_3
bif binary:bin_to_list/1
bif binary:bin_to_list/2
bif binary:bin_to_list/3
@@ -785,11 +794,6 @@ bif binary:decode_unsigned/1
bif binary:decode_unsigned/2
#
-# New Bifs in R13B4
-#
-bif erlang:binary_to_term/2
-
-#
# Obsolete
#
diff --git a/erts/emulator/beam/erl_bif_binary.c b/erts/emulator/beam/erl_bif_binary.c
index d073eb072f..ea8ea2e53d 100644
--- a/erts/emulator/beam/erl_bif_binary.c
+++ b/erts/emulator/beam/erl_bif_binary.c
@@ -1523,7 +1523,8 @@ BIF_RETTYPE binary_matches_2(BIF_ALIST_2)
return binary_matches_3(BIF_P,BIF_ARG_1,BIF_ARG_2,((Eterm) 0));
}
-BIF_RETTYPE binary_part_3(BIF_ALIST_3)
+
+BIF_RETTYPE erts_binary_part(Process *p, Eterm binary, Eterm epos, Eterm elen)
{
Uint pos;
Sint len;
@@ -1535,13 +1536,13 @@ BIF_RETTYPE binary_part_3(BIF_ALIST_3)
Eterm* hp;
ErlSubBin* sb;
- if (is_not_binary(BIF_ARG_1)) {
+ if (is_not_binary(binary)) {
goto badarg;
}
- if (!term_to_Uint(BIF_ARG_2, &pos)) {
+ if (!term_to_Uint(epos, &pos)) {
goto badarg;
}
- if (!term_to_Sint(BIF_ARG_3, &len)) {
+ if (!term_to_Sint(elen, &len)) {
goto badarg;
}
if (len < 0) {
@@ -1558,16 +1559,16 @@ BIF_RETTYPE binary_part_3(BIF_ALIST_3)
if (((pos + len) - len) != pos) {
goto badarg;
}
- if ((orig_size = binary_size(BIF_ARG_1)) < pos ||
+ if ((orig_size = binary_size(binary)) < pos ||
orig_size < (pos + len)) {
goto badarg;
}
- hp = HAlloc(BIF_P, ERL_SUB_BIN_SIZE);
+ hp = HAlloc(p, ERL_SUB_BIN_SIZE);
- ERTS_GET_REAL_BIN(BIF_ARG_1, orig, offset, bit_offset, bit_size);
+ ERTS_GET_REAL_BIN(binary, orig, offset, bit_offset, bit_size);
sb = (ErlSubBin *) hp;
sb->thing_word = HEADER_SUB_BIN;
sb->size = len;
@@ -1580,10 +1581,114 @@ BIF_RETTYPE binary_part_3(BIF_ALIST_3)
BIF_RET(make_binary(sb));
badarg:
- BIF_ERROR(BIF_P, BADARG);
+ 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) {
+ Sint lentmp = -len;
+ if (-lentmp != len) {
+ goto badarg;
+ }
+ len = lentmp;
+ if (len > pos) {
+ goto badarg;
+ }
+ pos -= len;
+ }
+ if (((pos + len) - 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
+ * variants are here. Note that the functions are named so that they do
+ * not clash with the guard bif's erlang:binary_part/2,3
+ *************************************************************/
+
+BIF_RETTYPE binary_binary_part_3(BIF_ALIST_3)
+{
+ return erts_binary_part(BIF_P,BIF_ARG_1,BIF_ARG_2, BIF_ARG_3);
}
-BIF_RETTYPE binary_part_2(BIF_ALIST_2)
+BIF_RETTYPE binary_binary_part_2(BIF_ALIST_2)
{
Eterm *tp;
if (is_not_tuple(BIF_ARG_2)) {
@@ -1593,7 +1698,7 @@ BIF_RETTYPE binary_part_2(BIF_ALIST_2)
if (arityval(*tp) != 2) {
goto badarg;
}
- return binary_part_3(BIF_P,BIF_ARG_1,tp[1], tp[2]);
+ return erts_binary_part(BIF_P,BIF_ARG_1,tp[1], tp[2]);
badarg:
BIF_ERROR(BIF_P,BADARG);
}
diff --git a/erts/emulator/beam/erl_bif_guard.c b/erts/emulator/beam/erl_bif_guard.c
index 440b0b4f14..01e6977a2c 100644
--- a/erts/emulator/beam/erl_bif_guard.c
+++ b/erts/emulator/beam/erl_bif_guard.c
@@ -314,6 +314,30 @@ double_to_integer(Process* p, double x)
return res;
}
+/********************************************************************************
+ * binary_part guards. The actual implementation is in erl_bif_binary.c
+ ********************************************************************************/
+BIF_RETTYPE binary_part_3(BIF_ALIST_3)
+{
+ return erts_binary_part(BIF_P,BIF_ARG_1,BIF_ARG_2, BIF_ARG_3);
+}
+
+BIF_RETTYPE binary_part_2(BIF_ALIST_2)
+{
+ Eterm *tp;
+ if (is_not_tuple(BIF_ARG_2)) {
+ goto badarg;
+ }
+ tp = tuple_val(BIF_ARG_2);
+ if (arityval(*tp) != 2) {
+ goto badarg;
+ }
+ return erts_binary_part(BIF_P,BIF_ARG_1,tp[1], tp[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
@@ -630,3 +654,16 @@ gc_double_to_integer(Process* p, double x, Eterm* reg, Uint live)
}
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 aeeebf3c74..a569fe2e85 100644
--- a/erts/emulator/beam/erl_binary.h
+++ b/erts/emulator/beam/erl_binary.h
@@ -158,6 +158,9 @@ byte* erts_get_aligned_binary_bytes_extra(Eterm, byte**, ErtsAlcType_t, unsigned
*/
BIF_RETTYPE erts_list_to_binary_bif(Process *p, Eterm arg);
+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);
+
#if defined(__i386__) || !defined(__GNUC__)
/*
diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h
index 235bd7931d..eeeeb7ccfd 100644
--- a/erts/emulator/beam/erl_vm.h
+++ b/erts/emulator/beam/erl_vm.h
@@ -61,8 +61,9 @@
/*
* The new arithmetic operations need some extra X registers in the register array.
+ * so does the gc_bif's (i_gc_bif3 need 3 extra).
*/
-#define ERTS_X_REGS_ALLOCATED (MAX_REG+2)
+#define ERTS_X_REGS_ALLOCATED (MAX_REG+3)
#define INPUT_REDUCTIONS (2 * CONTEXT_REDS)
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 4745aaf9f5..a7990e1799 100644
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -1579,6 +1579,7 @@ Sint erts_re_set_loop_limit(Sint limit);
/* erl_bif_binary.c */
void erts_init_bif_binary(void);
Sint erts_binary_set_loop_limit(Sint limit);
+
/* erl_unicode.c */
void erts_init_unicode(void);
Sint erts_unicode_set_loop_limit(Sint limit);
@@ -1708,6 +1709,8 @@ Eterm erts_gc_abs_1(Process* p, Eterm* reg, Uint live);
Eterm erts_gc_float_1(Process* p, Eterm* reg, Uint live);
Eterm erts_gc_round_1(Process* p, Eterm* reg, Uint live);
Eterm erts_gc_trunc_1(Process* p, Eterm* reg, Uint live);
+Eterm erts_gc_binary_part_3(Process* p, Eterm* reg, Uint live);
+Eterm erts_gc_binary_part_2(Process* p, Eterm* reg, Uint live);
Uint erts_current_reductions(Process* current, Process *p);
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index 49280a60e0..d6feef3fb9 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -1390,33 +1390,50 @@ bif1 Fail u$bif:erlang:trunc/1 s d => too_old_compiler
# Guard BIFs.
#
gc_bif1 Fail I Bif=u$bif:erlang:length/1 Src Dst=d => \
- gen_guard_bif(Fail, I, Bif, Src, Dst)
+ gen_guard_bif1(Fail, I, Bif, Src, Dst)
gc_bif1 Fail I Bif=u$bif:erlang:size/1 Src Dst=d => \
- gen_guard_bif(Fail, I, Bif, Src, Dst)
+ gen_guard_bif1(Fail, I, Bif, Src, Dst)
gc_bif1 Fail I Bif=u$bif:erlang:bit_size/1 Src Dst=d => \
- gen_guard_bif(Fail, I, Bif, Src, Dst)
+ gen_guard_bif1(Fail, I, Bif, Src, Dst)
gc_bif1 Fail I Bif=u$bif:erlang:byte_size/1 Src Dst=d => \
- gen_guard_bif(Fail, I, Bif, Src, Dst)
+ gen_guard_bif1(Fail, I, Bif, Src, Dst)
gc_bif1 Fail I Bif=u$bif:erlang:abs/1 Src Dst=d => \
- gen_guard_bif(Fail, I, Bif, Src, Dst)
+ gen_guard_bif1(Fail, I, Bif, Src, Dst)
gc_bif1 Fail I Bif=u$bif:erlang:float/1 Src Dst=d => \
- gen_guard_bif(Fail, I, Bif, Src, Dst)
+ gen_guard_bif1(Fail, I, Bif, Src, Dst)
gc_bif1 Fail I Bif=u$bif:erlang:round/1 Src Dst=d => \
- gen_guard_bif(Fail, I, Bif, Src, Dst)
+ gen_guard_bif1(Fail, I, Bif, Src, Dst)
gc_bif1 Fail I Bif=u$bif:erlang:trunc/1 Src Dst=d => \
- gen_guard_bif(Fail, I, Bif, Src, Dst)
+ gen_guard_bif1(Fail, I, Bif, Src, Dst)
+
+gc_bif2 Fail I Bif=u$bif:erlang:binary_part/2 S1 S2 Dst=d => \
+ gen_guard_bif2(Fail, I, Bif, S1, S2, Dst)
+
+gc_bif3 Fail I Bif=u$bif:erlang:binary_part/3 S1 S2 S3 Dst=d => \
+ gen_guard_bif3(Fail, I, Bif, S1, S2, S3, Dst)
i_gc_bif1 Fail Bif V=q Live D => move V x | i_gc_bif1 Fail Bif x Live D
i_gc_bif1 j I s I d
+ii_gc_bif2/6
+
+ii_gc_bif2 Fail Bif S1 S2 Live D => i_fetch S1 S2 | i_gc_bif2 Fail Bif Live D
+
+i_gc_bif2 j I I d
+
+ii_gc_bif3/7
+
+ii_gc_bif3 Fail Bif S1 S2 S3 Live D => move S1 x | i_fetch S2 S3 | i_gc_bif3 Fail Bif x Live D
+
+i_gc_bif3 j I s I d
#
# R13B03
#
diff --git a/erts/emulator/test/Makefile b/erts/emulator/test/Makefile
index 2424fedbed..97b94c466f 100644
--- a/erts/emulator/test/Makefile
+++ b/erts/emulator/test/Makefile
@@ -118,7 +118,8 @@ NO_OPT= bs_bincomp \
bs_match_int \
bs_match_tail \
bs_match_misc \
- bs_utf
+ bs_utf \
+ guard
NO_OPT_MODULES= $(NO_OPT:%=%_no_opt_SUITE)
diff --git a/erts/emulator/test/guard_SUITE.erl b/erts/emulator/test/guard_SUITE.erl
index 23482a20d7..fa311badf1 100644
--- a/erts/emulator/test/guard_SUITE.erl
+++ b/erts/emulator/test/guard_SUITE.erl
@@ -20,14 +20,15 @@
-module(guard_SUITE).
-export([all/1, bad_arith/1, bad_tuple/1, test_heap_guards/1, guard_bifs/1,
- type_tests/1]).
+ type_tests/1,guard_bif_binary_part/1]).
-include("test_server.hrl").
-export([init/3]).
-import(lists, [member/2]).
-all(suite) -> [bad_arith, bad_tuple, test_heap_guards, guard_bifs, type_tests].
+all(suite) -> [bad_arith, bad_tuple, test_heap_guards, guard_bifs,
+ type_tests, guard_bif_binary_part].
bad_arith(doc) -> "Test that a bad arithmetic operation in a guard works correctly.";
bad_arith(Config) when is_list(Config) ->
@@ -136,6 +137,161 @@ init(Fun, Args, Filler) ->
dummy(_) ->
ok.
+-define(MASK_ERROR(EXPR),mask_error((catch (EXPR)))).
+mask_error({'EXIT',{Err,_}}) ->
+ Err;
+mask_error(Else) ->
+ Else.
+
+guard_bif_binary_part(doc) ->
+ ["Test the binary_part/2,3 guard BIF's extensively"];
+guard_bif_binary_part(Config) when is_list(Config) ->
+ F = fun(X) ->
+ Master = self(),
+ {Pid,Ref} = spawn_monitor( fun() ->
+ A = lists:duplicate(X,a),
+ B = [do_binary_part_guard() | A],
+ Master ! {self(),hd(B)},
+ ok
+ end),
+ receive
+ {Pid,ok} ->
+ erlang:demonitor(Ref,[flush]),
+ ok;
+ Error ->
+ Error
+ end
+ end,
+ [ ok = F(N) || N <- lists:seq(1,10000) ],
+ ok.
+
+
+do_binary_part_guard() ->
+ ?line 1 = bptest(<<1,2,3>>),
+ ?line 2 = bptest(<<2,1,3>>),
+ ?line error = bptest(<<1>>),
+ ?line error = bptest(<<>>),
+ ?line error = bptest(apa),
+ ?line 3 = bptest(<<2,3,3>>),
+ % With one variable (pos)
+ ?line 1 = bptest(<<1,2,3>>,1),
+ ?line 2 = bptest(<<2,1,3>>,1),
+ ?line error = bptest(<<1>>,1),
+ ?line error = bptest(<<>>,1),
+ ?line error = bptest(apa,1),
+ ?line 3 = bptest(<<2,3,3>>,1),
+ % With one variable (length)
+ ?line 1 = bptesty(<<1,2,3>>,1),
+ ?line 2 = bptesty(<<2,1,3>>,1),
+ ?line error = bptesty(<<1>>,1),
+ ?line error = bptesty(<<>>,1),
+ ?line error = bptesty(apa,1),
+ ?line 3 = bptesty(<<2,3,3>>,2),
+ % With one variable (whole tuple)
+ ?line 1 = bptestx(<<1,2,3>>,{1,1}),
+ ?line 2 = bptestx(<<2,1,3>>,{1,1}),
+ ?line error = bptestx(<<1>>,{1,1}),
+ ?line error = bptestx(<<>>,{1,1}),
+ ?line error = bptestx(apa,{1,1}),
+ ?line 3 = bptestx(<<2,3,3>>,{1,2}),
+ % With two variables
+ ?line 1 = bptest(<<1,2,3>>,1,1),
+ ?line 2 = bptest(<<2,1,3>>,1,1),
+ ?line error = bptest(<<1>>,1,1),
+ ?line error = bptest(<<>>,1,1),
+ ?line error = bptest(apa,1,1),
+ ?line 3 = bptest(<<2,3,3>>,1,2),
+ % Direct (autoimported) call, these will be evaluated by the compiler...
+ ?line <<2>> = binary_part(<<1,2,3>>,1,1),
+ ?line <<1>> = binary_part(<<2,1,3>>,1,1),
+ % Compiler warnings due to constant evaluation expected (3)
+ ?line badarg = ?MASK_ERROR(binary_part(<<1>>,1,1)),
+ ?line badarg = ?MASK_ERROR(binary_part(<<>>,1,1)),
+ ?line badarg = ?MASK_ERROR(binary_part(apa,1,1)),
+ ?line <<3,3>> = binary_part(<<2,3,3>>,1,2),
+ % Direct call through apply
+ ?line <<2>> = apply(erlang,binary_part,[<<1,2,3>>,1,1]),
+ ?line <<1>> = apply(erlang,binary_part,[<<2,1,3>>,1,1]),
+ % Compiler warnings due to constant evaluation expected (3)
+ ?line badarg = ?MASK_ERROR(apply(erlang,binary_part,[<<1>>,1,1])),
+ ?line badarg = ?MASK_ERROR(apply(erlang,binary_part,[<<>>,1,1])),
+ ?line badarg = ?MASK_ERROR(apply(erlang,binary_part,[apa,1,1])),
+ ?line <<3,3>> = apply(erlang,binary_part,[<<2,3,3>>,1,2]),
+ % Constant propagation
+ ?line Bin = <<1,2,3>>,
+ ?line ok = if
+ binary_part(Bin,1,1) =:= <<2>> ->
+ ok;
+ %% Compiler warning, clause cannot match (expected)
+ true ->
+ error
+ end,
+ ?line ok = if
+ binary_part(Bin,{1,1}) =:= <<2>> ->
+ ok;
+ %% Compiler warning, clause cannot match (expected)
+ true ->
+ error
+ end,
+ ok.
+
+
+bptest(B) when length(B) =:= 1337 ->
+ 1;
+bptest(B) when binary_part(B,{1,1}) =:= <<2>> ->
+ 1;
+bptest(B) when erlang:binary_part(B,1,1) =:= <<1>> ->
+ 2;
+bptest(B) when erlang:binary_part(B,{1,2}) =:= <<3,3>> ->
+ 3;
+bptest(_) ->
+ error.
+
+bptest(B,A) when length(B) =:= A ->
+ 1;
+bptest(B,A) when binary_part(B,{A,1}) =:= <<2>> ->
+ 1;
+bptest(B,A) when erlang:binary_part(B,A,1) =:= <<1>> ->
+ 2;
+bptest(B,A) when erlang:binary_part(B,{A,2}) =:= <<3,3>> ->
+ 3;
+bptest(_,_) ->
+ error.
+
+bptestx(B,A) when length(B) =:= A ->
+ 1;
+bptestx(B,A) when binary_part(B,A) =:= <<2>> ->
+ 1;
+bptestx(B,A) when erlang:binary_part(B,A) =:= <<1>> ->
+ 2;
+bptestx(B,A) when erlang:binary_part(B,A) =:= <<3,3>> ->
+ 3;
+bptestx(_,_) ->
+ error.
+
+bptesty(B,A) when length(B) =:= A ->
+ 1;
+bptesty(B,A) when binary_part(B,{1,A}) =:= <<2>> ->
+ 1;
+bptesty(B,A) when erlang:binary_part(B,1,A) =:= <<1>> ->
+ 2;
+bptesty(B,A) when erlang:binary_part(B,{1,A}) =:= <<3,3>> ->
+ 3;
+bptesty(_,_) ->
+ error.
+
+bptest(B,A,_C) when length(B) =:= A ->
+ 1;
+bptest(B,A,C) when binary_part(B,{A,C}) =:= <<2>> ->
+ 1;
+bptest(B,A,C) when erlang:binary_part(B,A,C) =:= <<1>> ->
+ 2;
+bptest(B,A,C) when erlang:binary_part(B,{A,C}) =:= <<3,3>> ->
+ 3;
+bptest(_,_,_) ->
+ error.
+
+
guard_bifs(doc) -> "Test all guard bifs with nasty (but legal arguments).";
guard_bifs(Config) when is_list(Config) ->
?line Big = -237849247829874297658726487367328971246284736473821617265433,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 05:13:34 +0000