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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/arrays/apply-optimization.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/arrays/apply-optimization.js')
-rw-r--r-- | js/src/jit-test/tests/arrays/apply-optimization.js | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arrays/apply-optimization.js b/js/src/jit-test/tests/arrays/apply-optimization.js new file mode 100644 index 0000000000..fc62da910f --- /dev/null +++ b/js/src/jit-test/tests/arrays/apply-optimization.js @@ -0,0 +1,58 @@ +function make(k) { + var a = new Array(k); + for ( let i=0 ; i < k ; i++ ) + a[i] = {} + return a; +} + +function g() { + return arguments.length; +} + +function f(a) { + var sum = 0; + for ( let i=0 ; i < 1000 ; i++ ) + sum += g.apply(null, a); + return sum; +} + +function F2() { + var sum = 0; + for ( let i=0 ; i < 1000 ; i++ ) + sum += g.apply(null, arguments); + return sum; +} + +function F(a) { + return F2.apply(null, a); +} + +function time(k, t) { + var then = Date.now(); + assertEq(t(), 1000*k); + var now = Date.now(); + return now - then; +} + +function p(v) { + // Uncomment to see timings + // print(v); +} + +f(make(200)); + +// There is currently a cutoff after 375 where we bailout in order to avoid +// handling very large stack frames. This slows the operation down by a factor +// of 100 or so. + +p(time(374, () => f(make(374)))); +p(time(375, () => f(make(375)))); +p(time(376, () => f(make(376)))); +p(time(377, () => f(make(377)))); + +F(make(200)); + +p(time(374, () => F(make(374)))); +p(time(375, () => F(make(375)))); +p(time(376, () => F(make(376)))); +p(time(377, () => F(make(377)))); |