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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /js/src/jit-test/manual-tests/dense-to-sparse.js | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/jit-test/manual-tests/dense-to-sparse.js | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/jit-test/manual-tests/dense-to-sparse.js b/js/src/jit-test/manual-tests/dense-to-sparse.js new file mode 100644 index 0000000000..efe56620da --- /dev/null +++ b/js/src/jit-test/manual-tests/dense-to-sparse.js @@ -0,0 +1,40 @@ +// |jit-test| allow-oom +// Appending elements to a dense array should make the array sparse when the +// length exceeds the limit. + +function test() { + const MAX_DENSE_ELEMENTS_ALLOCATION = (1 << 28) - 1; + const VALUES_PER_HEADER = 2; + const MAX_DENSE_ELEMENTS_COUNT = MAX_DENSE_ELEMENTS_ALLOCATION - VALUES_PER_HEADER; + const SPARSE_DENSITY_RATIO = 8; + const MIN_DENSE = MAX_DENSE_ELEMENTS_COUNT / SPARSE_DENSITY_RATIO; + const MARGIN = 16; + + let a = []; + // Fill the beginning of array to make it keep dense until length exceeds + // MAX_DENSE_ELEMENTS_COUNT. + for (let i = 0; i < MIN_DENSE; i++) + a[i] = i; + + // Skip from MIN_DENSE to MAX_DENSE_ELEMENTS_COUNT - MARGIN, to reduce the + // time taken by test. + + // Fill the ending of array to make it sparse at MAX_DENSE_ELEMENTS_COUNT. + for (let i = MAX_DENSE_ELEMENTS_COUNT - MARGIN; i < MAX_DENSE_ELEMENTS_COUNT + MARGIN; i++) + a[i] = i; + + // Make sure the last element is defined. + assertEq(a.length, MAX_DENSE_ELEMENTS_COUNT + MARGIN); + assertEq(a[a.length - 1], MAX_DENSE_ELEMENTS_COUNT + MARGIN - 1); + + // Make sure elements around MAX_DENSE_ELEMENTS_COUNT are also defined. + assertEq(a[MAX_DENSE_ELEMENTS_COUNT - 1], MAX_DENSE_ELEMENTS_COUNT - 1); + assertEq(a[MAX_DENSE_ELEMENTS_COUNT], MAX_DENSE_ELEMENTS_COUNT); + assertEq(a[MAX_DENSE_ELEMENTS_COUNT + 1], MAX_DENSE_ELEMENTS_COUNT + 1); +} + +var config = getBuildConfiguration(); +// Takes too long time on debug build. +if (!config.debug) { + test(); +} |