Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(1274)

Unified Diff: test/mjsunit/asm/float32array-negative-offset.js

Issue 733893008: [x64] Fix optimization for certain checked load/stores. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 6 years ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « src/compiler/x64/instruction-selector-x64.cc ('k') | test/mjsunit/asm/float64array-negative-offset.js » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: test/mjsunit/asm/float32array-negative-offset.js
diff --git a/test/mjsunit/asm/float32array-negative-offset.js b/test/mjsunit/asm/float32array-negative-offset.js
new file mode 100644
index 0000000000000000000000000000000000000000..524bdc840c59303173d7fb59165e91c77cf39448
--- /dev/null
+++ b/test/mjsunit/asm/float32array-negative-offset.js
@@ -0,0 +1,42 @@
+// 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.
+
+var stdlib = this;
+var buffer = new ArrayBuffer(64 * 1024);
+var foreign = {}
+
+
+var m = (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;
+ }
+ function load8(i) {
+ i = i|0;
+ i = +MEM32[i + 8 >> 2];
+ return i;
+ }
+ function store8(i, v) {
+ i = i|0;
+ v = +v;
+ MEM32[i + 8 >> 2] = v;
+ }
+ return { load: load, store: store, load8: load8, store8: store8 };
+})(stdlib, foreign, buffer);
+
+assertEquals(NaN, m.load(-8));
+assertEquals(NaN, m.load8(-16));
+m.store(0, 42.0);
+assertEquals(42.0, m.load8(-8));
+m.store8(-8, 99.0);
+assertEquals(99.0, m.load(0));
+assertEquals(99.0, m.load8(-8));
« no previous file with comments | « src/compiler/x64/instruction-selector-x64.cc ('k') | test/mjsunit/asm/float64array-negative-offset.js » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698