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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/jit-test/tests/ion/spreadcall-not-optimized-static-3.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/ion/spreadcall-not-optimized-static-3.js')
-rw-r--r-- | js/src/jit-test/tests/ion/spreadcall-not-optimized-static-3.js | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/spreadcall-not-optimized-static-3.js b/js/src/jit-test/tests/ion/spreadcall-not-optimized-static-3.js new file mode 100644 index 0000000000..8bae3c19d2 --- /dev/null +++ b/js/src/jit-test/tests/ion/spreadcall-not-optimized-static-3.js @@ -0,0 +1,30 @@ +// Tests when JSOP_OPTIMIZE_SPREADCALL can't be applied during the initial +// Ion compilation. + +// JSOP_OPTIMIZE_SPREADCALL can be optimised when the following conditions +// are fulfilled: +// (1) the argument is an array +// (2) the array has no hole +// (3) array[@@iterator] is not modified +// (4) the array's prototype is Array.prototype +// (5) Array.prototype[@@iterator] is not modified +// (6) %ArrayIteratorPrototype%.next is not modified + +function add(a, b) { + return a + b; +} + +// The rest argument has an own @@iterator property. +function test() { + function MyIter() { + return [3, 4][Symbol.iterator](); + } + function fn(...rest) { + rest[Symbol.iterator] = MyIter; + return add(...rest); + } + for (var i = 0; i < 2000; ++i) { + assertEq(fn(1, 2), 7); + } +} +test(); |