Merging upstream version 126.0.

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

1 files changed, 69 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/wasm/gc/casting.js b/js/src/jit-test/tests/wasm/gc/casting.js
index a71a589db8..3b550e6415 100644
--- a/js/src/jit-test/tests/wasm/gc/casting.js
+++ b/js/src/jit-test/tests/wasm/gc/casting.js
@@ -114,3 +114,72 @@ function testAllCasts(types) {
   }
 }
 testAllCasts(TYPES);
+
+// Test that combinations of ref.test and ref.cast compile correctly.
+// (These can be optimized together.)
+{
+  const { make, test1, test2, test3, test4 } = wasmEvalText(`(module
+    (type $a (array i32))
+    (func (export "make") (param i32) (result anyref)
+      local.get 0
+      local.get 0
+      array.new_fixed $a 2
+    )
+    (func (export "test1") (param anyref) (result i32)
+      (if (ref.test (ref $a) (local.get 0))
+        (then
+          (ref.cast (ref $a) (local.get 0))
+          (array.get $a (i32.const 0))
+          return
+        )
+      )
+      i32.const -1
+    )
+    (func (export "test2") (param anyref) (result i32)
+      (if (ref.test (ref $a) (local.get 0))
+        (then)
+        (else
+          (ref.cast (ref $a) (local.get 0))
+          (array.get $a (i32.const 0))
+          return
+        )
+      )
+      i32.const -1
+    )
+    (func (export "test3") (param anyref) (result i32)
+      (if (ref.test (ref $a) (local.get 0))
+        (then
+          (if (ref.test (ref $a) (local.get 0))
+            (then)
+            (else
+              (ref.cast (ref $a) (local.get 0))
+              (array.get $a (i32.const 0))
+              return
+            )
+          )
+        )
+      )
+      i32.const -1
+    )
+    (func (export "test4") (param anyref) (result i32)
+      (if (ref.test (ref $a) (local.get 0))
+        (then
+          (if (ref.test (ref $a) (local.get 0))
+            (then
+              local.get 0
+              ref.cast (ref $a)
+              ref.cast (ref $a)
+              (array.get $a (i32.const 0))
+              return
+            )
+          )
+        )
+      )
+      i32.const -1
+    )
+  )`).exports;
+  assertEq(test1(make(99)), 99);
+  assertEq(test2(make(99)), -1);
+  assertEq(test3(make(99)), -1);
+  assertEq(test4(make(99)), 99);
+}