From 6e681a5fbed2f39c2e979a00fe2ee5392bb534a0 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Fri, 18 Jun 2010 15:56:31 +0000
Subject: Give NamedRegionTimer an Enabled flag, allowing all its clients to
 switch from this:

  if (TimePassesIsEnabled) {
    NamedRegionTimer T(Name, GroupName);
    do_something();
  } else {
    do_something(); // duplicate the code, this time without a timer!
  }

to this:

  {
    NamedRegionTimer T(Name, GroupName, TimePassesIsEnabled);
    do_something();
  }

llvm-svn: 106285
---
 llvm/lib/Support/Timer.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'llvm/lib/Support/Timer.cpp')

diff --git a/llvm/lib/Support/Timer.cpp b/llvm/lib/Support/Timer.cpp
index 784b77cf591..44ee1777cb5 100644
--- a/llvm/lib/Support/Timer.cpp
+++ b/llvm/lib/Support/Timer.cpp
@@ -236,11 +236,13 @@ static Timer &getNamedRegionTimer(StringRef Name) {
   return T;
 }
 
-NamedRegionTimer::NamedRegionTimer(StringRef Name)
-  : TimeRegion(getNamedRegionTimer(Name)) {}
+NamedRegionTimer::NamedRegionTimer(StringRef Name,
+                                   bool Enabled)
+  : TimeRegion(!Enabled ? 0 : &getNamedRegionTimer(Name)) {}
 
-NamedRegionTimer::NamedRegionTimer(StringRef Name, StringRef GroupName)
-  : TimeRegion(NamedGroupedTimers->get(Name, GroupName)) {}
+NamedRegionTimer::NamedRegionTimer(StringRef Name, StringRef GroupName,
+                                   bool Enabled)
+  : TimeRegion(!Enabled ? 0 : &NamedGroupedTimers->get(Name, GroupName)) {}
 
 //===----------------------------------------------------------------------===//
 //   TimerGroup Implementation
-- 
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