Fix endianness on some MSVC versions.

[oota-llvm.git] / include / llvm / Support / FEnv.h

diff --git a/include/llvm/Support/FEnv.h b/include/llvm/Support/FEnv.h
index 042e43928bcf727db300478ab1d7cedbc7d61170..8560ee0a8afec378a14854aff7600f3177a80227 100644 (file)
--- a/include/llvm/Support/FEnv.h
+++ b/include/llvm/Support/FEnv.h
@@ -1,4 +1,4 @@
-//===- llvm/System/FEnv.h - Host floating-point exceptions ------*- C++ -*-===//
+//===- llvm/Support/FEnv.h - Host floating-point exceptions ------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -12,8 +12,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_SYSTEM_FENV_H
-#define LLVM_SYSTEM_FENV_H
+#ifndef LLVM_SUPPORT_FENV_H
+#define LLVM_SUPPORT_FENV_H
 
 #include "llvm/Config/config.h"
 #include <cerrno>
@@ -32,7 +32,7 @@ namespace sys {
 
 /// llvm_fenv_clearexcept - Clear the floating-point exception state.
 static inline void llvm_fenv_clearexcept() {
-#ifdef HAVE_FENV_H
+#if defined(HAVE_FENV_H) && HAVE_DECL_FE_ALL_EXCEPT
   feclearexcept(FE_ALL_EXCEPT);
 #endif
   errno = 0;
@@ -43,7 +43,7 @@ static inline bool llvm_fenv_testexcept() {
   int errno_val = errno;
   if (errno_val == ERANGE || errno_val == EDOM)
     return true;
-#ifdef HAVE_FENV_H
+#if defined(HAVE_FENV_H) && HAVE_DECL_FE_ALL_EXCEPT && HAVE_DECL_FE_INEXACT
   if (fetestexcept(FE_ALL_EXCEPT & ~FE_INEXACT))
     return true;
 #endif