From cbb70ce070d220642b038ea101d9c0f9fbf860d6 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Sun, 20 Feb 2011 12:57:14 +0000
Subject: Vendor import of llvm trunk r126079:
 http://llvm.org/svn/llvm-project/llvm/trunk@126079

---
 tools/bugpoint/OptimizerDriver.cpp | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

(limited to 'tools/bugpoint/OptimizerDriver.cpp')

diff --git a/tools/bugpoint/OptimizerDriver.cpp b/tools/bugpoint/OptimizerDriver.cpp
index 3600ca6..2471cc1 100644
--- a/tools/bugpoint/OptimizerDriver.cpp
+++ b/tools/bugpoint/OptimizerDriver.cpp
@@ -15,10 +15,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-// Note: as a short term hack, the old Unix-specific code and platform-
-// independent code co-exist via conditional compilation until it is verified
-// that the new code works correctly on Unix.
-
 #include "BugDriver.h"
 #include "llvm/Module.h"
 #include "llvm/PassManager.h"
@@ -29,9 +25,9 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/SystemUtils.h"
 #include "llvm/Support/Debug.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Path.h"
-#include "llvm/System/Program.h"
+#include "llvm/Support/ToolOutputFile.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/Program.h"
 
 #define DONT_GET_PLUGIN_LOADER_OPTION
 #include "llvm/Support/PluginLoader.h"
@@ -130,12 +126,12 @@ bool BugDriver::runPasses(Module *Program,
            << ErrMsg << "\n";
     return(1);
   }
-  
+
   std::string ErrInfo;
   tool_output_file InFile(inputFilename.c_str(), ErrInfo,
                           raw_fd_ostream::F_Binary);
-  
-  
+
+
   if (!ErrInfo.empty()) {
     errs() << "Error opening bitcode file: " << inputFilename.str() << "\n";
     return 1;
@@ -147,11 +143,19 @@ bool BugDriver::runPasses(Module *Program,
     InFile.os().clear_error();
     return 1;
   }
+
+  sys::Path tool = PrependMainExecutablePath("opt", getToolName(),
+                                             (void*)"opt");
+  if (tool.empty()) {
+    errs() << "Cannot find `opt' in executable directory!\n";
+    return 1;
+  }
+
+  // Ok, everything that could go wrong before running opt is done.
   InFile.keep();
 
   // setup the child process' arguments
   SmallVector<const char*, 8> Args;
-  sys::Path tool = FindExecutable("opt", getToolName(), (void*)"opt");
   std::string Opt = tool.str();
   if (UseValgrind) {
     Args.push_back("valgrind");
@@ -192,7 +196,7 @@ bool BugDriver::runPasses(Module *Program,
     prog = sys::Program::FindProgramByName("valgrind");
   else
     prog = tool;
-  
+
   // Redirect stdout and stderr to nowhere if SilencePasses is given
   sys::Path Nowhere;
   const sys::Path *Redirects[3] = {0, &Nowhere, &Nowhere};
-- 
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