jdelong
9749e6bd54
Sets up the translator analyze pass to create a Tracelet for the callee at every statically-known FCall. If the callee has an appropriate shape (in this diff, it must be a function consisting of "return $this->foo" for a declared property), we can inline it in HHIR. Restructures the IR relating to frames some so we can eliminate the stores relating to ActRec in this simple case (see the comments in dce.cpp and hhbctranslator.cpp for details). Includes partial support for inlining callees with locals, but it's disabled for now because they will keep the frame live.
50 linhas
1.0 KiB
PHP
50 linhas
1.0 KiB
PHP
<?php
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/*
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* This test emulates a regpressure case that occurred with inlining
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* (but probably won't occur later as we improve linearscan).
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*/
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class IPAddressIsh {
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private $binary;
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private $id;
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public function __construct($id) {
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$this->id = $id;
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$this->binary = "asdasd";
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}
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public function __destruct() {
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echo "dtor" . $this->id . "\n";
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}
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public function toBinary() {
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return $this->binary;
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}
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public final function inSubnetWithMask(IPAddressIsh $subnet, string $mask) {
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// Test case for inlining from FB's IPAddress class, removed real
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// logic.
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echo "pre1\n";
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return ($this->toBinary() & $mask) === ($subnet->toBinary() & $mask);
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}
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public function foobar() {
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echo $this->binary;
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echo "\n";
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}
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}
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function main() {
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$x = new IPAddressIsh('x');
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$y = new IPAddressIsh('y');
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echo $x->inSubnetWithMask($y, "213");
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// Use after and ensure refcounts are still real.
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echo "after1\n";
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$x->foobar();
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echo "after2\n";
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$y->foobar();
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echo "after3\n";
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}
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main();
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