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-rw-r--r--erts/emulator/beam/beam_debug.c44
-rw-r--r--erts/emulator/beam/beam_load.c68
-rw-r--r--erts/emulator/beam/select_instrs.tab6
3 files changed, 100 insertions, 18 deletions
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c
index 39e96126bf..9ba65e2464 100644
--- a/erts/emulator/beam/beam_debug.c
+++ b/erts/emulator/beam/beam_debug.c
@@ -54,6 +54,7 @@ void dbg_where(BeamInstr* addr, Eterm x0, Eterm* reg);
static int print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr);
static void print_bif_name(fmtfn_t to, void* to_arg, BifFunction bif);
static BeamInstr* f_to_addr(BeamInstr* base, int op, BeamInstr* ap);
+static BeamInstr* f_to_addr_packed(BeamInstr* base, int op, Sint32* ap);
BIF_RETTYPE
erts_debug_same_2(BIF_ALIST_2)
@@ -634,6 +635,7 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
{
int n = ap[-1];
int ix = n;
+ Sint32* jump_tab = (Sint32 *)(ap + n);
while (ix--) {
erts_print(to, to_arg, "%T ", (Eterm) ap[0]);
@@ -642,11 +644,11 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
}
ix = n;
while (ix--) {
- BeamInstr* target = f_to_addr(addr, op, ap);
+ BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
erts_print(to, to_arg, "f(" HEXF ") ", target);
- ap++;
- size++;
+ jump_tab++;
}
+ size += (n+1) / 2;
}
break;
case op_i_select_val_bins_xfI:
@@ -668,6 +670,7 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
{
int n = ap[-1];
int ix = n - 1; /* without sentinel */
+ Sint32* jump_tab = (Sint32 *)(ap + n);
while (ix--) {
Uint arity = arityval(ap[0]);
@@ -681,34 +684,38 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
size++;
ix = n;
while (ix--) {
- BeamInstr* target = f_to_addr(addr, op, ap);
+ BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
erts_print(to, to_arg, "f(" HEXF ") ", target);
- ap++;
- size++;
+ jump_tab++;
}
+ size += (n+1) / 2;
}
break;
case op_i_jump_on_val_xfIW:
case op_i_jump_on_val_yfIW:
{
- int n;
- for (n = ap[-2]; n > 0; n--) {
- BeamInstr* target = f_to_addr(addr, op, ap);
+ int n = ap[-2];
+ Sint32* jump_tab = (Sint32 *) ap;
+
+ size += (n+1) / 2;
+ while (n-- > 0) {
+ BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
erts_print(to, to_arg, "f(" HEXF ") ", target);
- ap++;
- size++;
+ jump_tab++;
}
}
break;
case op_i_jump_on_val_zero_xfI:
case op_i_jump_on_val_zero_yfI:
{
- int n;
- for (n = ap[-1]; n > 0; n--) {
- BeamInstr* target = f_to_addr(addr, op, ap);
+ int n = ap[-1];
+ Sint32* jump_tab = (Sint32 *) ap;
+
+ size += (n+1) / 2;
+ while (n-- > 0) {
+ BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
erts_print(to, to_arg, "f(" HEXF ") ", target);
- ap++;
- size++;
+ jump_tab++;
}
}
break;
@@ -810,6 +817,11 @@ static BeamInstr* f_to_addr(BeamInstr* base, int op, BeamInstr* ap)
return base - 1 + opc[op].adjust + (Sint32) *ap;
}
+static BeamInstr* f_to_addr_packed(BeamInstr* base, int op, Sint32* ap)
+{
+ return base - 1 + opc[op].adjust + *ap;
+}
+
/*
* Dirty BIF testing.
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index 2acf3a2c1c..9bb5866cb3 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -1976,6 +1976,9 @@ load_code(LoaderState* stp)
GenOp** last_op_next = NULL;
int arity;
int retval = 1;
+#if defined(BEAM_WIDE_SHIFT)
+ int num_trailing_f; /* Number of extra 'f' arguments in a list */
+#endif
/*
* The size of the loaded func_info instruction is needed
@@ -2661,7 +2664,17 @@ load_code(LoaderState* stp)
* Load any list arguments using the primitive tags.
*/
+#if defined(BEAM_WIDE_SHIFT)
+ num_trailing_f = 0;
+#endif
for ( ; arg < tmp_op->arity; arg++) {
+#if defined(BEAM_WIDE_SHIFT)
+ if (tmp_op->a[arg].type == TAG_f) {
+ num_trailing_f++;
+ } else {
+ num_trailing_f = 0;
+ }
+#endif
switch (tmp_op->a[arg].type) {
case TAG_i:
CodeNeed(1);
@@ -2701,6 +2714,61 @@ load_code(LoaderState* stp)
}
}
+ /*
+ * If all the extra arguments were 'f' operands,
+ * and the wordsize is 64 bits, pack two 'f' operands
+ * into each word.
+ */
+
+#if defined(BEAM_WIDE_SHIFT)
+ if (num_trailing_f >= 1) {
+ Uint src_index = ci - num_trailing_f;
+ Uint src_limit = ci;
+ Uint dst_limit = src_index + (num_trailing_f+1)/2;
+
+ ci = src_index;
+ while (ci < dst_limit) {
+ Uint w[2];
+ BeamInstr packed = 0;
+ int wi;
+
+ w[0] = code[src_index];
+ if (src_index+1 < src_limit) {
+ w[1] = code[src_index+1];
+ } else {
+ w[1] = 0;
+ }
+ for (wi = 0; wi < 2; wi++) {
+ Uint lbl = w[wi];
+ LabelPatch* lp = stp->labels[lbl].patches;
+ int num_patches = stp->labels[lbl].num_patches;
+
+#if defined(WORDS_BIGENDIAN)
+ packed <<= BEAM_WIDE_SHIFT;
+ packed |= lbl & BEAM_WIDE_MASK;
+#else
+ packed >>= BEAM_WIDE_SHIFT;
+ packed |= lbl << BEAM_WIDE_SHIFT;
+#endif
+ while (num_patches-- > 0) {
+ if (lp->pos == src_index + wi) {
+ lp->pos = ci;
+#if defined(WORDS_BIGENDIAN)
+ lp->packed = 2 - wi;
+#else
+ lp->packed = wi + 1;
+#endif
+ break;
+ }
+ lp++;
+ }
+ }
+ code[ci++] = packed;
+ src_index += 2;
+ }
+ }
+#endif
+
/*
* Handle a few special cases.
*/
diff --git a/erts/emulator/beam/select_instrs.tab b/erts/emulator/beam/select_instrs.tab
index da6b7dbe62..6b59f02925 100644
--- a/erts/emulator/beam/select_instrs.tab
+++ b/erts/emulator/beam/select_instrs.tab
@@ -150,7 +150,8 @@ select_val_lin.execute(N) {
}
if (vs[ix] == select_val) {
- Eterm offset = *($NEXT_INSTRUCTION + $N + ix);
+ Sint32* jump_tab = (Sint32 *) ($NEXT_INSTRUCTION + $N);
+ Eterm offset = jump_tab[ix];
$JUMP(offset);
} else {
$JUMP(*select_fail);
@@ -161,7 +162,8 @@ JUMP_ON_VAL(Fail, Index, N, Base) {
if (is_small($Index)) {
$Index = (Uint) (signed_val($Index) - $Base);
if ($Index < $N) {
- $JUMP((($NEXT_INSTRUCTION)[$Index]));
+ Sint32* jump_tab = (Sint32 *) ($NEXT_INSTRUCTION);
+ $JUMP(jump_tab[$Index]);
}
}
$FAIL($Fail);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 01:52:05 +0000