Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/ion/fold-linear-arith-bug1528829.js b/js/src/jit-test/tests/ion/fold-linear-arith-bug1528829.js
new file mode 100644
index 0000000000..e4529c1bfb
--- /dev/null
+++ b/js/src/jit-test/tests/ion/fold-linear-arith-bug1528829.js
@@ -0,0 +1,18 @@
+// |jit-test| --ion-warmup-threshold=0; --ion-check-range-analysis
+
+function f(o) {
+    // Int32 math does an overflow check.
+    o += 1;
+    // Int32 math does an underflow check.
+    o += -2147483647;
+    // If previous math operations are folded, we should keep the smallest
+    // overflow check and the highest underflow check to stay within the
+    // expected range deduced by Range Analysis.
+    for (let i = 0; i < 1; ++i) {
+        o -= 1;
+    }
+}
+f(0);
+f(0);
+f(2147483647);
+