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fix unsafe escape analysis in reduce_vars (#2387)

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This commit is contained in:
Alex Lam S.L
2017-10-22 03:23:31 +08:00
committed by GitHub
parent 96439ca246
commit 011123223b
4 changed files with 85 additions and 45 deletions
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69
test/compress/arrays.js
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@@ -128,50 +128,55 @@ constant_join_3: {
for_loop: {
options = {
unsafe : true,
unused : true,
evaluate : true,
reduce_vars : true
evaluate: true,
reduce_vars: true,
unsafe: true,
};
input: {
function f0() {
var a = [1, 2, 3];
for (var i = 0; i < a.length; i++) {
console.log(a[i]);
}
var b = 0;
for (var i = 0; i < a.length; i++)
b += a[i];
return b;
}
function f1() {
var a = [1, 2, 3];
for (var i = 0, len = a.length; i < len; i++) {
console.log(a[i]);
}
var b = 0;
for (var i = 0, len = a.length; i < len; i++)
b += a[i];
return b;
}
function f2() {
var a = [1, 2, 3];
for (var i = 0; i < a.length; i++) {
a[i]++;
}
}
}
expect: {
function f0() {
var a = [1, 2, 3];
for (var i = 0; i < 3; i++)
console.log(a[i]);
}
function f1() {
var a = [1, 2, 3];
for (var i = 0; i < 3; i++)
console.log(a[i]);
}
function f2() {
var a = [1, 2, 3];
for (var i = 0; i < a.length; i++)
a[i]++;
return a[2];
}
console.log(f0(), f1(), f2());
}
expect: {
function f0() {
var a = [1, 2, 3];
var b = 0;
for (var i = 0; i < 3; i++)
b += a[i];
return b;
}
function f1() {
var a = [1, 2, 3];
var b = 0;
for (var i = 0, len = a.length; i < len; i++)
b += a[i];
return b;
}
function f2() {
var a = [1, 2, 3];
for (var i = 0; i < a.length; i++)
a[i]++;
return a[2];
}
console.log(f0(), f1(), f2());
}
expect_stdout: "6 6 4"
}