PR19388: DebugInfo: Emit dead arguments in their originally declared order.

[oota-llvm.git] / lib / Support / Process.cpp

diff --git a/lib/Support/Process.cpp b/lib/Support/Process.cpp
index 64a1fa237ee016c1e02a5df31858321a4ae91e05..0380ed955dd5547d8e21cbdf306fe0f6c5ddb932 100644 (file)
--- a/lib/Support/Process.cpp
+++ b/lib/Support/Process.cpp
@@ -34,14 +34,6 @@ self_process *process::get_self() {
   return SP;
 }
 
-#if defined(_MSC_VER)
-// Visual Studio complains that the self_process destructor never exits. This
-// doesn't make much sense, as that's the whole point of calling abort... Just
-// silence this warning.
-#pragma warning(push)
-#pragma warning(disable:4722)
-#endif
-
 // The destructor for the self_process subclass must never actually be
 // executed. There should be at most one instance of this class, and that
 // instance should live until the process terminates to avoid the potential for
@@ -50,10 +42,48 @@ self_process::~self_process() {
   llvm_unreachable("This destructor must never be executed!");
 }
 
-#if defined(_MSC_VER)
-#pragma warning(pop)
-#endif
+/// \brief A helper function to compute the elapsed wall-time since the program
+/// started.
+///
+/// Note that this routine actually computes the elapsed wall time since the
+/// first time it was called. However, we arrange to have it called during the
+/// startup of the process to get approximately correct results.
+static TimeValue getElapsedWallTime() {
+  static TimeValue &StartTime = *new TimeValue(TimeValue::now());
+  return TimeValue::now() - StartTime;
+}
+
+/// \brief A special global variable to ensure we call \c getElapsedWallTime
+/// during global initialization of the program.
+///
+/// Note that this variable is never referenced elsewhere. Doing so could
+/// create race conditions during program startup or shutdown.
+static volatile TimeValue DummyTimeValue = getElapsedWallTime();
+
+// Implement this routine by using the static helpers above. They're already
+// portable.
+TimeValue self_process::get_wall_time() const {
+  return getElapsedWallTime();
+}
+
+
+#define COLOR(FGBG, CODE, BOLD) "\033[0;" BOLD FGBG CODE "m"
+
+#define ALLCOLORS(FGBG,BOLD) {\
+    COLOR(FGBG, "0", BOLD),\
+    COLOR(FGBG, "1", BOLD),\
+    COLOR(FGBG, "2", BOLD),\
+    COLOR(FGBG, "3", BOLD),\
+    COLOR(FGBG, "4", BOLD),\
+    COLOR(FGBG, "5", BOLD),\
+    COLOR(FGBG, "6", BOLD),\
+    COLOR(FGBG, "7", BOLD)\
+  }
 
+static const char colorcodes[2][2][8][10] = {
+ { ALLCOLORS("3",""), ALLCOLORS("3","1;") },
+ { ALLCOLORS("4",""), ALLCOLORS("4","1;") }
+};
 
 // Include the platform-specific parts of this class.
 #ifdef LLVM_ON_UNIX