From 013b6f296ff7c0cb6aa5aeb6868df05995eeadb7 Mon Sep 17 00:00:00 2001
From: Logan Chien <loganchien@google.com>
Date: Fri, 2 Mar 2012 17:20:33 +0800
Subject: Print LLVM passes time consumption.

Change-Id: I592b843da83acefb5b397e07565406254081d3df
---
 src/compiler_llvm/compiler_llvm.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/compiler_llvm/compiler_llvm.cc')

diff --git a/src/compiler_llvm/compiler_llvm.cc b/src/compiler_llvm/compiler_llvm.cc
index 1edbd46df2..c94e7ea36d 100644
--- a/src/compiler_llvm/compiler_llvm.cc
+++ b/src/compiler_llvm/compiler_llvm.cc
@@ -27,15 +27,23 @@
 
 #include <llvm/LinkAllPasses.h>
 #include <llvm/LinkAllVMCore.h>
+#include <llvm/Support/ManagedStatic.h>
 #include <llvm/Support/TargetSelect.h>
 #include <llvm/Support/Threading.h>
 
+namespace llvm {
+  extern bool TimePassesIsEnabled;
+}
+
 
 namespace {
 
 pthread_once_t llvm_initialized = PTHREAD_ONCE_INIT;
 
 void InitializeLLVM() {
+  // NOTE: Uncomment following line to show the time consumption of LLVM passes
+  //llvm::TimePassesIsEnabled = true;
+
   // Initialize LLVM target, MC subsystem, asm printer, and asm parser
   llvm::InitializeAllTargets();
   llvm::InitializeAllTargetMCs();
@@ -81,6 +89,7 @@ CompilerLLVM::CompilerLLVM(Compiler* compiler, InstructionSet insn_set)
 
 CompilerLLVM::~CompilerLLVM() {
   STLDeleteElements(&cunits_);
+  llvm::llvm_shutdown();
 }
 
 
-- 
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