[Interpreter] Fix deopt when accumulator needs to be materialized.

test/mjsunit/compiler/deopt-materialize-accumulator.js

Index: test/mjsunit/compiler/deopt-materialize-accumulator.js
diff --git a/test/mjsunit/compiler/escape-analysis-deopt-5.js b/test/mjsunit/compiler/deopt-materialize-accumulator.js
similarity index 80%
copy from test/mjsunit/compiler/escape-analysis-deopt-5.js
copy to test/mjsunit/compiler/deopt-materialize-accumulator.js
index e70f0b1221bd9ab9b33c72da70db4a38897fe34b..c80e329150383ba24ab0949bbdc470576c4570bb 100644
--- a/test/mjsunit/compiler/escape-analysis-deopt-5.js
+++ b/test/mjsunit/compiler/deopt-materialize-accumulator.js
@@ -25,17 +25,17 @@
 // (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: --allow-natives-syntax --turbo-escape
+// Flags: --allow-natives-syntax
+//
+// Tests that Turbofan correctly materializes values which are in the
+// interpreters accumulator during deopt.
 
-function f() {
-  var x = new Array(2);
-  x[0] = 23.1234;
-  x[1] = 25.1234;
-  %DeoptimizeNow();
-  return x[0];
+var global = 3;
+function f(a) {
+  // This will trigger a deopt since global was previously a SMI, with the
+  // accumulator holding an unboxed double which needs materialized.
+  global = %_MathSqrt(a);
 }
-
-assertEquals(f(), 23.1234);
-assertEquals(f(), 23.1234);
 %OptimizeFunctionOnNextCall(f);
-assertEquals(f(), 23.1234);
+f(0.25);
+assertEquals(0.5, global);