Tweak code into an equivalent form for which icc

doesn't warn about unreachable instructions.  Patch
by Erick Tryzelaar (#111).

llvm-svn: 81110

3 files changed, 13 insertions, 17 deletions

diff --git a/llvm/lib/System/Mutex.cpp b/llvm/lib/System/Mutex.cpp
index a5e9920ae3f..8ccd6e52c4d 100644
--- a/llvm/lib/System/Mutex.cpp
+++ b/llvm/lib/System/Mutex.cpp
@@ -115,8 +115,7 @@ MutexImpl::acquire()
 
     int errorcode = pthread_mutex_lock(mutex);
     return errorcode == 0;
-  }
-  return false;
+  } else return false;
 }
 
 bool
@@ -129,8 +128,7 @@ MutexImpl::release()
 
     int errorcode = pthread_mutex_unlock(mutex);
     return errorcode == 0;
-  }
-  return false;
+  } else return false;
 }
 
 bool
@@ -143,8 +141,7 @@ MutexImpl::tryacquire()
 
     int errorcode = pthread_mutex_trylock(mutex);
     return errorcode == 0;
-  }
-  return false;
+  } else return false;
 }
 
 }
diff --git a/llvm/lib/System/RWMutex.cpp b/llvm/lib/System/RWMutex.cpp
index 15d98cb8f41..5faf220eb91 100644
--- a/llvm/lib/System/RWMutex.cpp
+++ b/llvm/lib/System/RWMutex.cpp
@@ -117,8 +117,7 @@ RWMutexImpl::reader_acquire()
 
     int errorcode = pthread_rwlock_rdlock(rwlock);
     return errorcode == 0;
-  }
-  return false;
+  } else return false;
 }
 
 bool
@@ -131,8 +130,7 @@ RWMutexImpl::reader_release()
 
     int errorcode = pthread_rwlock_unlock(rwlock);
     return errorcode == 0;
-  }
-  return false;
+  } else return false;
 }
 
 bool
@@ -145,8 +143,7 @@ RWMutexImpl::writer_acquire()
 
     int errorcode = pthread_rwlock_wrlock(rwlock);
     return errorcode == 0;
-  }
-  return false;
+  } else return false;
 }
 
 bool
@@ -159,8 +156,7 @@ RWMutexImpl::writer_release()
 
     int errorcode = pthread_rwlock_unlock(rwlock);
     return errorcode == 0;
-  }
-  return false;
+  } else return false;
 }
 
 }
diff --git a/llvm/lib/System/Unix/Process.inc b/llvm/lib/System/Unix/Process.inc
index c4ce35a208f..774783f8ad0 100644
--- a/llvm/lib/System/Unix/Process.inc
+++ b/llvm/lib/System/Unix/Process.inc
@@ -181,25 +181,28 @@ void Process::PreventCoreFiles() {
 bool Process::StandardInIsUserInput() {
 #if HAVE_ISATTY
   return isatty(0);
-#endif
+#else
   // If we don't have isatty, just return false.
   return false;
+#endif
 }
 
 bool Process::StandardOutIsDisplayed() {
 #if HAVE_ISATTY
   return isatty(1);
-#endif
+#else
   // If we don't have isatty, just return false.
   return false;
+#endif
 }
 
 bool Process::StandardErrIsDisplayed() {
 #if HAVE_ISATTY
   return isatty(2);
-#endif
+#else
   // If we don't have isatty, just return false.
   return false;
+#endif
 }
 
 static unsigned getColumns(int FileID) {