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Unified Diff: test/mjsunit/asm/float32array-outofbounds.js

Issue 640603003: [turbofan] Properly emit bounds checks for typed array element loads. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Add another test. Created 6 years, 2 months ago
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Index: test/mjsunit/asm/float32array-outofbounds.js
diff --git a/test/mjsunit/asm/float32array-outofbounds.js b/test/mjsunit/asm/float32array-outofbounds.js
new file mode 100644
index 0000000000000000000000000000000000000000..8709b706c97f353031f649f33f38bcc2698e6955
--- /dev/null
+++ b/test/mjsunit/asm/float32array-outofbounds.js
@@ -0,0 +1,30 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+function Module(stdlib, foreign, heap) {
+ "use asm";
+ var MEM32 = new stdlib.Float32Array(heap);
+ function load(i) {
+ i = i|0;
+ i = +MEM32[i >> 2];
+ return i;
+ }
+ function store(i, v) {
+ i = i|0;
+ v = +v;
+ MEM32[i >> 2] = v;
+ }
+ return { load: load, store: store };
+}
+
+var m = Module(this, {}, new ArrayBuffer(4));
+
+m.store(0, 42.0);
+for (var i = 1; i < 64; ++i) {
+ m.store(i * 4 * 32 * 1024, i);
+}
+assertEquals(42.0, m.load(0));
+for (var i = 1; i < 64; ++i) {
+ assertEquals(NaN, m.load(i * 4 * 32 * 1024));
+}
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