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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/jit-test/tests/cacheir/parseInt-double-truncate.js
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/cacheir/parseInt-double-truncate.js')
-rw-r--r--js/src/jit-test/tests/cacheir/parseInt-double-truncate.js41
1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/parseInt-double-truncate.js b/js/src/jit-test/tests/cacheir/parseInt-double-truncate.js
new file mode 100644
index 0000000000..2b989f2624
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/parseInt-double-truncate.js
@@ -0,0 +1,41 @@
+// Test some double-truncation edge cases with parseInt(double).
+
+function testPos1() {
+ with({}) {}
+ var fun = d => parseInt(d);
+ for (var i = 0; i < 2000; i++) {
+ assertEq(fun(i + 0.5), i);
+ }
+ assertEq(fun(0xf_ffff_ffff) + 345, 68719477080);
+}
+testPos1();
+
+function testPos2() {
+ with({}) {}
+ var fun = d => parseInt(d);
+ for (var i = 0; i < 2000; i++) {
+ assertEq(fun(i + 0.5), i);
+ }
+ assertEq(fun(0x8000_0000) + 345, 2147483993);
+}
+testPos2();
+
+function testNeg1() {
+ with({}) {}
+ var fun = d => parseInt(d);
+ for (var i = 0; i < 2000; i++) {
+ assertEq(fun(i + 0.5), i);
+ }
+ assertEq(fun(-0xf_ffff_ffff) - 345, -68719477080);
+}
+testNeg1();
+
+function testNeg2() {
+ with({}) {}
+ var fun = d => parseInt(d);
+ for (var i = 0; i < 2000; i++) {
+ assertEq(fun(i + 0.5), i);
+ }
+ assertEq(fun(-0x8000_0001) - 345, -2147483994);
+}
+testNeg2();