[cfe-commits] r147440 - in /cfe/trunk: lib/Frontend/InitPreprocessor.cpp test/Preprocessor/predefined-macros.c

[Chandler Carruth]

Author: chandlerc
Date: Mon Jan  2 20:46:46 2012
New Revision: 147440

URL: http://llvm.org/viewvc/llvm-project?rev=147440&view=rev
Log:
Teach the frontend to provide the builtin preprocessor defines for
-ffast-math.

Modified:
    cfe/trunk/lib/Frontend/InitPreprocessor.cpp
    cfe/trunk/test/Preprocessor/predefined-macros.c

Modified: cfe/trunk/lib/Frontend/InitPreprocessor.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/InitPreprocessor.cpp?rev=147440&r1=147439&r2=147440&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/InitPreprocessor.cpp (original)
+++ cfe/trunk/lib/Frontend/InitPreprocessor.cpp Mon Jan  2 20:46:46 2012
@@ -411,6 +411,9 @@
   if (LangOpts.OptimizeSize)
     Builder.defineMacro("__OPTIMIZE_SIZE__");
 
+  if (LangOpts.FastMath)
+    Builder.defineMacro("__FAST_MATH__");
+
   // Initialize target-specific preprocessor defines.
 
   // Define type sizing macros based on the target properties.

Modified: cfe/trunk/test/Preprocessor/predefined-macros.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/predefined-macros.c?rev=147440&r1=147439&r2=147440&view=diff
==============================================================================
--- cfe/trunk/test/Preprocessor/predefined-macros.c (original)
+++ cfe/trunk/test/Preprocessor/predefined-macros.c Mon Jan  2 20:46:46 2012
@@ -1,12 +1,14 @@
-// This test verifies that the correct macros are predefined. It currently
-// only checks for Microsoft macros.
-
-// RUN: %clang_cc1 %s -E -dM -triple i686-pc-win32 -fms-extensions -fmsc-version=1300 -o - | FileCheck %s
-
-
-// CHECK: #define _INTEGRAL_MAX_BITS 64
-// CHECK: #define _MSC_EXTENSIONS 1
-// CHECK: #define _MSC_VER 1300
-// CHECK: #define _M_IX86 600
-// CHECK: #define _M_IX86_FP
-// CHECK: #define _WIN32 1
+// This test verifies that the correct macros are predefined.
+//
+// RUN: %clang_cc1 %s -E -dM -triple i686-pc-win32 -fms-extensions \
+// RUN:     -fmsc-version=1300 -o - | FileCheck %s --check-prefix=CHECK-MS
+// CHECK-MS: #define _INTEGRAL_MAX_BITS 64
+// CHECK-MS: #define _MSC_EXTENSIONS 1
+// CHECK-MS: #define _MSC_VER 1300
+// CHECK-MS: #define _M_IX86 600
+// CHECK-MS: #define _M_IX86_FP
+// CHECK-MS: #define _WIN32 1
+//
+// RUN: %clang_cc1 %s -E -dM -ffast-math -o - \
+// RUN:   | FileCheck %s --check-prefix=CHECK-FAST-MATH
+// CHECK-FAST-MATH: #define __FAST_MATH__