Fix loop side-effects of deoptimizing loops with a nested live OSR loop.

test/mjsunit/regress/regress-context-osr.js

Index: test/mjsunit/regress/regress-context-osr.js
diff --git a/test/mjsunit/regress/regress-crbug-217858.js b/test/mjsunit/regress/regress-context-osr.js
similarity index 88%
copy from test/mjsunit/regress/regress-crbug-217858.js
copy to test/mjsunit/regress/regress-context-osr.js
index e61cb9f6d24a6dcb54a81699183d2db843d0d2dc..fbf325b14d59a9007c4e3814b04555c37050f9b4 100644
--- a/test/mjsunit/regress/regress-crbug-217858.js
+++ b/test/mjsunit/regress/regress-context-osr.js
@@ -25,13 +25,15 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --noanalyze_environment_liveness
-
-var r = /r/;
+"use strict";
 function f() {
-  r[r] = function() {};
+  try { } catch (e) { }
 }
 
-for (var i = 0; i < 300000; i++) {
-  f();
+for (this.x = 0; this.x < 1; ++this.x) {
+  for (this.jj = 0; this.jj < 1; ++this.jj) {
+    for (this.ll = 10000; this.ll < 100000; ++this.ll) {
+      f();
+    }
+  }
 }

[titzer, 2013/12/05 17:52:09]

Can you please write versions for 4 and 5 loop nesting levels? You may also be
able to reduce the OSR count as well.