js/src/jit-test/tests/basic/constant-folding-1.js@6474c204b198 (annotated)
js/src/jit-test/tests/basic/constant-folding-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 | function bytecode(f) { |
| michael@0 | 2 | if (typeof disassemble !== "function") |
| michael@0 | 3 | return "unavailable"; |
| michael@0 | 4 | var d = disassemble(f); |
| michael@0 | 5 | return d.slice(d.indexOf("main:"), d.indexOf("\n\n")); |
| michael@0 | 6 | } |
| michael@0 | 7 | assertEq(bytecode(() => "hello" + "world"), |
| michael@0 | 8 | bytecode(() => "helloworld")); |
| michael@0 | 9 | assertEq(bytecode(() => 2 + "2" + "2"), |
| michael@0 | 10 | bytecode(() => "222")); |
| michael@0 | 11 | assertEq(bytecode(() => "x" + "3"), |
| michael@0 | 12 | bytecode(() => "x3")); |
| michael@0 | 13 | |
| michael@0 | 14 | var s = "hoge"; |
| michael@0 | 15 | assertEq(bytecode(() => "fo" + "o" + s + "ba" + "r"), |
| michael@0 | 16 | bytecode(() => "foo" + s + "bar")); |
| michael@0 | 17 | assertEq(bytecode(() => "fo" + "o" + 1 + s + 1 + "ba" + "r"), |
| michael@0 | 18 | bytecode(() => "foo1" + s + "1bar")); |
| michael@0 | 19 | assertEq(bytecode(() => 1 + (2 * 2) + "x"), |
| michael@0 | 20 | bytecode(() => 5 + "x")); |
| michael@0 | 21 | assertEq(s + 1 + 2, "hoge12"); |
| michael@0 | 22 | assertEq((() => s + 1 + 2)(), "hoge12"); |
| michael@0 | 23 | |
| michael@0 | 24 | // SpiderMonkey knows that 1 + 1 == "11". |
| michael@0 | 25 | assertEq(bytecode(() => "x" + s + 1 + 1), |
| michael@0 | 26 | bytecode(() => "x" + s + "11")); |
| michael@0 | 27 | |
| michael@0 | 28 | var n = 5; |
| michael@0 | 29 | assertEq(1 + n + 1 + "ba" + "r", "7bar"); |
| michael@0 | 30 | assertEq(1 + 2 + {valueOf: () => 3, toString: () => 'x'} + 4 + 5,15); |
| michael@0 | 31 | assertEq(1+2+n,8); |
| michael@0 | 32 | assertEq(bytecode(() => 1 + 2 + n + 1 + 2), |
| michael@0 | 33 | bytecode(() => 3 + n + 1 + 2)); |
| michael@0 | 34 | assertEq(1 + 2 + n + 1 + 2, 11); |
| michael@0 | 35 | assertEq(bytecode(() => 1 + 2 + s + 1 + 2), |
| michael@0 | 36 | bytecode(() => 3 + s + 1 + 2)); |
| michael@0 | 37 | assertEq(1 + 2 + s + 1 + 2, "3hoge12"); |
| michael@0 | 38 | |
| michael@0 | 39 | assertEq(bytecode(() => ["a" + "b" + n]), |
| michael@0 | 40 | bytecode(() => ["ab" + n])); |
| michael@0 | 41 | var a = ["a" + "b" + n]; |
| michael@0 | 42 | assertEq(a[0], "ab5"); |
| michael@0 | 43 |
