[ClangTidy] Add new performance-type-promotion-in-math-fn check.

Summary:
This checks for calls to double-precision math.h with single-precision
arguments.  For example, it suggests replacing ::sin(0.f) with
::sinf(0.f).

Subscribers: mgorny, cfe-commits

Differential Revision: https://reviews.llvm.org/D27284

llvm-svn: 289627

1 files changed, 4 insertions, 2 deletions

diff --git a/clang-tools-extra/clang-tidy/performance/PerformanceTidyModule.cpp b/clang-tools-extra/clang-tidy/performance/PerformanceTidyModule.cpp
index a722ffb14aa..90255c5e2b6 100644
--- a/clang-tools-extra/clang-tidy/performance/PerformanceTidyModule.cpp
+++ b/clang-tools-extra/clang-tidy/performance/PerformanceTidyModule.cpp
@@ -10,11 +10,11 @@
 #include "../ClangTidy.h"
 #include "../ClangTidyModule.h"
 #include "../ClangTidyModuleRegistry.h"
-#include "InefficientStringConcatenationCheck.h"
-
 #include "FasterStringFindCheck.h"
 #include "ForRangeCopyCheck.h"
 #include "ImplicitCastInLoopCheck.h"
+#include "InefficientStringConcatenationCheck.h"
+#include "TypePromotionInMathFnCheck.h"
 #include "UnnecessaryCopyInitialization.h"
 #include "UnnecessaryValueParamCheck.h"
 
@@ -33,6 +33,8 @@ public:
         "performance-implicit-cast-in-loop");
     CheckFactories.registerCheck<InefficientStringConcatenationCheck>(
         "performance-inefficient-string-concatenation");
+    CheckFactories.registerCheck<TypePromotionInMathFnCheck>(
+        "performance-type-promotion-in-math-fn");
     CheckFactories.registerCheck<UnnecessaryCopyInitialization>(
         "performance-unnecessary-copy-initialization");
     CheckFactories.registerCheck<UnnecessaryValueParamCheck>(