[Webkit-unassigned] [Bug 154808] NewRegexp should not prevent inlining

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sat Aug 20 01:05:02 PDT 2016


--- Comment #2 from Caio Lima <ticaiolima at gmail.com> ---
Created attachment 286537
  --> https://bugs.webkit.org/attachment.cgi?id=286537&action=review
Proposed Patch

This version that I propose. I am investigating if there is a possibility of callee CodeBock be GCed because if it happens, RegExp are potentially candidates to be collected and Mache Code Block are going to point o invalid RegExp.

The current test that I am using right now is:

function toInline(a) {
    var re = /cc+/;

    print("test ccc: "+re.test("ccc"));
    print("test abc: "+re.test("abc"));
    return 0;

function f(a) {
    var re = /(ab)+/;
    print("test ba: " + re.test("ba"));
    return 0;


for (let i = 0; i < 100000; i++) {


print("GC Passed");

let a = Array(10000000);
for (let i = 0; i < 10000000; i++) {
    a[i] = {value: i};

print("Objects Allocated");
for (let i = 0; i < 100; i++) {

However it is possible write  more test codes with correct asserts.
This testing is working properly but I think it is worth more investigation.

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