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authorBjörn Gustavsson <[email protected]>2017-08-31 14:56:33 +0200
committerBjörn Gustavsson <[email protected]>2017-08-31 15:02:29 +0200
commit1b8cbb336698ab0a1992a35e2c08e2d25c6a66d5 (patch)
tree8a83353926bf97c647410b223d69e0de9d7d77ac /erts/emulator/utils/beam_makeops
parentf0b2ac51019181cc765b55e95b2723f5ed03d3fa (diff)
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Introduce '%warm' and beam_warm.h
The bit syntax instructions are mixed among other instructions in beam_hot.h and beam_cold.h. Introduce a new hotness level called '%warm' with is associated file beam_warm.h. Mark all bit syntax instructions as '%warm'.
Diffstat (limited to 'erts/emulator/utils/beam_makeops')
-rwxr-xr-xerts/emulator/utils/beam_makeops36
1 files changed, 25 insertions, 11 deletions
diff --git a/erts/emulator/utils/beam_makeops b/erts/emulator/utils/beam_makeops
index 6c54ab3421..bcc92472d4 100755
--- a/erts/emulator/utils/beam_makeops
+++ b/erts/emulator/utils/beam_makeops
@@ -20,13 +20,16 @@
#
use strict;
use vars qw($BEAM_FORMAT_NUMBER);
+use constant COLD => 0;
+use constant WARM => 1;
+use constant HOT => 2;
$BEAM_FORMAT_NUMBER = undef;
my $target = \&emulator_output;
my $outdir = "."; # Directory for output files.
my $verbose = 0;
-my $hot = 1;
+my $hotness = 1;
my $num_file_opcodes = 0;
my $wordsize = 32;
my %defs; # Defines (from command line).
@@ -344,13 +347,16 @@ while (<>) {
}
#
- # Handle %hot/%cold.
+ # Handle %hot, %warm, and %cold.
#
if (/^\%hot/) {
- $hot = 1;
+ $hotness = HOT;
next;
+ } elsif (/^\%warm/) {
+ $hotness = WARM;
+ next;
} elsif (/^\%cold/) {
- $hot = 0;
+ $hotness = COLD;
next;
}
@@ -438,7 +444,7 @@ while (<>) {
if (defined $gen_opnum{$name,$arity} and $obsolete[$gen_opnum{$name,$arity}]) {
error("specific instructions may not be specified for obsolete instructions");
}
- save_specific_ops($name, $arity, $hot, @args);
+ save_specific_ops($name, $arity, $hotness, @args);
if (defined $op_num) {
error("specific instructions must not be numbered");
} elsif (!defined($gen_arity{$name}) && !defined($unnumbered{$name,$arity})) {
@@ -801,12 +807,17 @@ sub emulator_output {
$name = "$outdir/beam_hot.h";
open(STDOUT, ">$name") || die "Failed to open $name for writing: $!\n";
comment('C');
- print_code(1);
+ print_code(HOT);
+
+ $name = "$outdir/beam_warm.h";
+ open(STDOUT, ">$name") || die "Failed to open $name for writing: $!\n";
+ comment('C');
+ print_code(WARM);
$name = "$outdir/beam_cold.h";
open(STDOUT, ">$name") || die "Failed to open $name for writing: $!\n";
comment('C');
- print_code(0);
+ print_code(COLD);
}
sub init_item {
@@ -1039,14 +1050,16 @@ sub combine_micro_instructions {
# Now generate code for each group.
foreach my $group (sort keys %groups) {
- my($code,@labels) = combine_instruction_group($group, @{$groups{$group}});
- push @generated_code, [1,$code,@labels];
+ my($hotness,$code,@labels) =
+ combine_instruction_group($group, @{$groups{$group}});
+ push @generated_code, [$hotness,$code,@labels];
}
}
sub combine_instruction_group {
my($group,@in_instrs) = @_;
my $gcode = ''; # Code for the entire group.
+ my $group_hotness = COLD;
# Get code for the head of the group (if any).
my $head_name = "$group.head";
@@ -1075,7 +1088,8 @@ sub combine_instruction_group {
error("no $specific_key instruction")
unless defined $specific_op_ref;
foreach my $specific_op (@$specific_op_ref) {
- my($name, $hot, @args) = @{$specific_op};
+ my($name, $hotness, @args) = @{$specific_op};
+ $group_hotness = $hotness unless $group_hotness >= $hotness;
my $offset = 0;
my @rest = @args;
my @new_subs;
@@ -1182,7 +1196,7 @@ sub combine_instruction_group {
$offset = $order_to_offset{$slots[$i+1]} if $i < $#slots;
}
- ("{\n$gcode\n}\n\n",@opcase_labels);
+ ($group_hotness,"{\n$gcode\n}\n\n",@opcase_labels);
}
sub micro_label {