From 1629965964b0e5c786c16b5af15f1d53059183ed Mon Sep 17 00:00:00 2001
From: Eli Bendersky <eliben@google.com>
Date: Wed, 3 Apr 2013 15:33:45 +0000
Subject: [PATCH] Measure time that IR parsing took as part of the -time-passes
 measurement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178662 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/IR/PassManager.cpp    |  6 ++----
 lib/IRReader/IRReader.cpp | 11 +++++++++++
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/lib/IR/PassManager.cpp b/lib/IR/PassManager.cpp
index 5a8df703dbe..3c968aac164 100644
--- a/lib/IR/PassManager.cpp
+++ b/lib/IR/PassManager.cpp
@@ -1739,10 +1739,8 @@ bool PassManager::run(Module &M) {
 }
 
 //===----------------------------------------------------------------------===//
-// TimingInfo Class - This class is used to calculate information about the
-// amount of time each pass takes to execute.  This only happens with
-// -time-passes is enabled on the command line.
-//
+// TimingInfo implementation
+
 bool llvm::TimePassesIsEnabled = false;
 static cl::opt<bool,true>
 EnableTiming("time-passes", cl::location(TimePassesIsEnabled),
diff --git a/lib/IRReader/IRReader.cpp b/lib/IRReader/IRReader.cpp
index fb87cbd8bf8..eeec14e834c 100644
--- a/lib/IRReader/IRReader.cpp
+++ b/lib/IRReader/IRReader.cpp
@@ -14,9 +14,18 @@
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/SourceMgr.h"
 #include "llvm/Support/system_error.h"
+#include "llvm/Support/Timer.h"
 
 using namespace llvm;
 
+namespace llvm {
+  extern bool TimePassesIsEnabled;
+}
+
+static const char *TimeIRParsingGroupName = "LLVM IR Parsing";
+static const char *TimeIRParsingName = "Parse IR";
+
+
 Module *llvm::getLazyIRModule(MemoryBuffer *Buffer, SMDiagnostic &Err,
                               LLVMContext &Context) {
   if (isBitcode((const unsigned char *)Buffer->getBufferStart(),
@@ -50,6 +59,8 @@ Module *llvm::getLazyIRFileModule(const std::string &Filename, SMDiagnostic &Err
 
 Module *llvm::ParseIR(MemoryBuffer *Buffer, SMDiagnostic &Err,
                       LLVMContext &Context) {
+  NamedRegionTimer T(TimeIRParsingName, TimeIRParsingGroupName,
+                     TimePassesIsEnabled);
   if (isBitcode((const unsigned char *)Buffer->getBufferStart(),
                 (const unsigned char *)Buffer->getBufferEnd())) {
     std::string ErrMsg;
-- 
2.11.0