Don't use a potentially expensive shift if all we want is one set bit.

[oota-llvm.git] / lib / Transforms / IPO / IPO.cpp

diff --git a/lib/Transforms/IPO/IPO.cpp b/lib/Transforms/IPO/IPO.cpp
index c0f5625ee2fe8963b7dcc62d6458b23fb7f2c4b9..5d563d8bbf512fd07daa3d66b739bc7f22ff58b3 100644 (file)
--- a/lib/Transforms/IPO/IPO.cpp
+++ b/lib/Transforms/IPO/IPO.cpp
@@ -1,4 +1,4 @@
-//===-- Scalar.cpp --------------------------------------------------------===//
+//===-- IPO.cpp -----------------------------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -13,6 +13,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm-c/Initialization.h"
 #include "llvm-c/Transforms/IPO.h"
 #include "llvm/InitializePasses.h"
 #include "llvm/PassManager.h"
@@ -35,7 +36,6 @@ void llvm::initializeIPO(PassRegistry &Registry) {
   initializeLoopExtractorPass(Registry);
   initializeBlockExtractorPassPass(Registry);
   initializeSingleLoopExtractorPass(Registry);
-  initializeLowerSetJmpPass(Registry);
   initializeMergeFunctionsPass(Registry);
   initializePartialInlinerPass(Registry);
   initializePruneEHPass(Registry);
@@ -86,10 +86,6 @@ void LLVMAddIPConstantPropagationPass(LLVMPassManagerRef PM) {
   unwrap(PM)->add(createIPConstantPropagationPass());
 }
 
-void LLVMAddLowerSetJmpPass(LLVMPassManagerRef PM) {
-  unwrap(PM)->add(createLowerSetJmpPass());
-}
-
 void LLVMAddPruneEHPass(LLVMPassManagerRef PM) {
   unwrap(PM)->add(createPruneEHPass());
 }
@@ -99,7 +95,10 @@ void LLVMAddIPSCCPPass(LLVMPassManagerRef PM) {
 }
 
 void LLVMAddInternalizePass(LLVMPassManagerRef PM, unsigned AllButMain) {
-  unwrap(PM)->add(createInternalizePass(AllButMain != 0));
+  std::vector<const char *> Export;
+  if (AllButMain)
+    Export.push_back("main");
+  unwrap(PM)->add(createInternalizePass(Export));
 }
 
 void LLVMAddStripDeadPrototypesPass(LLVMPassManagerRef PM) {