Restrict representation inference to avoid truncation of phi inputs.

test/cctest/compiler/test-simplified-lowering.cc

Index: test/cctest/compiler/test-simplified-lowering.cc
diff --git a/test/cctest/compiler/test-simplified-lowering.cc b/test/cctest/compiler/test-simplified-lowering.cc
index f1cbcbefb36729b171ad14a0708556330aa4d8e5..147aa323ffaf887351b87b46c5015a98d261d343 100644
--- a/test/cctest/compiler/test-simplified-lowering.cc
+++ b/test/cctest/compiler/test-simplified-lowering.cc
@@ -2037,11 +2037,6 @@ TEST(PhiRepresentation) {
   HandleAndZoneScope scope;
   Zone* z = scope.main_zone();
 
-  Factory* f = z->isolate()->factory();
-  Handle<Object> range_min = f->NewNumber(-1e13);
-  Handle<Object> range_max = f->NewNumber(1e+15);
-  Type* range = Type::Range(range_min, range_max, z);
-
   struct TestData {
     Type* arg1;
     Type* arg2;
@@ -2052,7 +2047,8 @@ TEST(PhiRepresentation) {
   TestData test_data[] = {
       {Type::Signed32(), Type::Unsigned32(), kMachInt32,
        kRepWord32 | kTypeNumber},
-      {range, range, kMachUint32, kRepWord32 | kTypeNumber},
+      {Type::Signed32(), Type::Unsigned32(), kMachUint32,
+       kRepWord32 | kTypeNumber},
       {Type::Signed32(), Type::Signed32(), kMachInt32, kMachInt32},
       {Type::Unsigned32(), Type::Unsigned32(), kMachInt32, kMachUint32},
       {Type::Number(), Type::Signed32(), kMachInt32, kMachFloat64},