Fixed range analysis for HMathFloorOfDiv.

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index ba8d03b6f6f8f04839fee8c07dbfcc9a1c33943c..c93bc1144af36376167cbac155e664ec57cda72c 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -1788,7 +1788,7 @@ Range* HMul::InferRange(Zone* zone) {
 }
 
 
-Range* HDiv::InferRange(Zone* zone) {
+Range* HBinaryOperation::InferRangeForDiv(Zone* zone) {
   if (representation().IsInteger32()) {
     Range* a = left()->range();
     Range* b = right()->range();
@@ -1797,11 +1797,11 @@ Range* HDiv::InferRange(Zone* zone) {
                                   (a->CanBeMinusZero() ||
                                    (a->CanBeZero() && b->CanBeNegative())));
     if (!a->Includes(kMinInt) || !b->Includes(-1)) {
-      ClearFlag(HValue::kCanOverflow);
+      ClearFlag(kCanOverflow);
     }
 
     if (!b->CanBeZero()) {
-      ClearFlag(HValue::kCanBeDivByZero);
+      ClearFlag(kCanBeDivByZero);
     }
     return result;
   } else {
@@ -1810,6 +1810,16 @@ Range* HDiv::InferRange(Zone* zone) {
 }
 
 
+Range* HDiv::InferRange(Zone* zone) {
+  return InferRangeForDiv(zone);
+}
+
+
+Range* HMathFloorOfDiv::InferRange(Zone* zone) {
+  return InferRangeForDiv(zone);
+}
+
+
 Range* HMod::InferRange(Zone* zone) {
   if (representation().IsInteger32()) {
     Range* a = left()->range();