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fix collapse_vars within loops (#2915)

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fixes #2914
This commit is contained in:
Alex Lam S.L
2018-02-14 05:15:52 +08:00
committed by GitHub
parent 4f1c12b6fd
commit 83d8aa8b12
2 changed files with 89 additions and 2 deletions
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73
test/compress/collapse_vars.js
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@@ -4546,3 +4546,76 @@ issue_2908: {
}
expect_stdout: "2"
}
issue_2914_1: {
options = {
collapse_vars: true,
}
input: {
function read(input) {
var i = 0;
var e = 0;
var t = 0;
while (e < 32) {
var n = input[i++];
t |= (127 & n) << e;
if (0 === (128 & n))
return t;
e += 7;
}
}
console.log(read([129]));
}
expect: {
function read(input) {
var i = 0;
var e = 0;
var t = 0;
while (e < 32) {
var n = input[i++];
t |= (127 & n) << e;
if (0 === (128 & n))
return t;
e += 7;
}
}
console.log(read([129]));
}
expect_stdout: "1"
}
issue_2914_2: {
options = {
collapse_vars: true,
}
input: {
function read(input) {
var i = 0;
var e = 0;
var t = 0;
while (e < 32) {
var n = input[i++];
t = (127 & n) << e;
if (0 === (128 & n))
return t;
e += 7;
}
}
console.log(read([129]));
}
expect: {
function read(input) {
var i = 0;
var e = 0;
var t = 0;
while (e < 32) {
var n = input[i++];
if (0 === (128 & n))
return t = (127 & n) << e;
e += 7;
}
}
console.log(read([129]));
}
expect_stdout: "0"
}