js/src/jit-test/tests/ion/eliminate-unreachable-1.js

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 // Test for one annoying case of the EliminateUnreachableCode
michael@0 2 // optimization. Here the dominators change and also phis are
michael@0 3 // eliminated.
michael@0 4
michael@0 5 function test1(v) {
michael@0 6 var i = 0;
michael@0 7 if (v) {
michael@0 8 if (v) {
michael@0 9 i += 1;
michael@0 10 } else {
michael@0 11 i += 10;
michael@0 12 }
michael@0 13 i += 100;
michael@0 14 } else {
michael@0 15 if (v) {
michael@0 16 i += 1000;
michael@0 17 } else {
michael@0 18 i += 10000;
michael@0 19 }
michael@0 20 i += 100000;
michael@0 21 }
michael@0 22 i += 1000000;
michael@0 23 return i;
michael@0 24 }
michael@0 25
michael@0 26 function test() {
michael@0 27 assertEq(test1(true), 1000101);
michael@0 28 assertEq(test1(false), 1110000);
michael@0 29 }
michael@0 30
michael@0 31 for (var i = 0; i < 100; i++)
michael@0 32 test();

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