x87: fix the use of CheckFloatEq and CheckDoubleEq in test.

test/cctest/compiler/value-helper.h

Index: test/cctest/compiler/value-helper.h
diff --git a/test/cctest/compiler/value-helper.h b/test/cctest/compiler/value-helper.h
index 83cd33c5b0af90290fcb6ba0e9d08412f00b7aed..1ba83dd9ec4d1f8b49bfb5dacc499f1cf0e19363 100644
--- a/test/cctest/compiler/value-helper.h
+++ b/test/cctest/compiler/value-helper.h
@@ -321,6 +321,10 @@ static inline void CheckFloatEq(volatile float x, volatile float y) {
   }
 }
 
+#define CHECK_FLOAT_EQ(lhs, rhs) \

[titzer, 2016/03/07 10:38:11]

You should use a do { .. } while(false) to be a good macro citizen.

+  volatile float tmp = lhs;      \
+  CheckFloatEq(tmp, rhs);
+
 static inline void CheckDoubleEq(volatile double x, volatile double y) {
   if (std::isnan(x)) {
     CHECK(std::isnan(y));
@@ -329,6 +333,10 @@ static inline void CheckDoubleEq(volatile double x, volatile double y) {
   }
 }
 
+#define CHECK_DOUBLE_EQ(lhs, rhs) \
+  volatile double tmp = lhs;      \
+  CheckDoubleEq(tmp, rhs);
+
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8