[turbofan] Change TruncateFloat32ToInt64 to TryTruncateFloat32ToInt64.

test/cctest/compiler/test-run-machops.cc

Index: test/cctest/compiler/test-run-machops.cc
diff --git a/test/cctest/compiler/test-run-machops.cc b/test/cctest/compiler/test-run-machops.cc
index 24007a83f6cbc4652f367315815354b054864b26..6423b65362feb1369a7b5fdfcdc6d66f77422c44 100644
--- a/test/cctest/compiler/test-run-machops.cc
+++ b/test/cctest/compiler/test-run-machops.cc
@@ -5390,9 +5390,9 @@ TEST(RunBitcastFloat64ToInt64) {
 }
 
 
-TEST(RunTruncateFloat32ToInt64) {
+TEST(RunTryTruncateFloat32ToInt64WithoutCheck) {
   BufferedRawMachineAssemblerTester<int64_t> m(kMachFloat32);
-  m.Return(m.TruncateFloat32ToInt64(m.Parameter(0)));
+  m.Return(m.TryTruncateFloat32ToInt64(m.Parameter(0)));
 
   FOR_INT64_INPUTS(i) {
     float input = static_cast<float>(*i);
@@ -5400,9 +5400,25 @@ TEST(RunTruncateFloat32ToInt64) {
       CHECK_EQ(static_cast<int64_t>(input), m.Call(input));
     }
   }
-  FOR_FLOAT32_INPUTS(j) {
-    if (*j < 9223372036854775808.0 && *j > -9223372036854775809.0) {
-      CHECK_EQ(static_cast<int64_t>(*j), m.Call(*j));
+}
+
+
+TEST(RunTryTruncateFloat32ToInt64WithCheck) {
+  int64_t success = 0;
+  BufferedRawMachineAssemblerTester<int64_t> m(kMachFloat32);
+  Node* trunc = m.TryTruncateFloat32ToInt64(m.Parameter(0));
+  Node* val = m.Projection(0, trunc);
+  Node* check = m.Projection(1, trunc);
+  m.StoreToPointer(&success, kMachInt64, check);
+  m.Return(val);
+
+  FOR_FLOAT32_INPUTS(i) {
+    if (*i < 9223372036854775808.0 && *i > -9223372036854775809.0) {
+      CHECK_EQ(static_cast<int64_t>(*i), m.Call(*i));
+      CHECK_NE(0, success);
+    } else {
+      m.Call(*i);
+      CHECK_EQ(0, success);
     }
   }
 }