eliminate dependence on StandardPasses.h. The code generator's pass pipeline

should eventually convert to PMBuilder, but I don't plan to do this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131819 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 2 deletions

diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index 13cd45e..0b9821c 100644
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -13,6 +13,7 @@
 
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/PassManager.h"
+#include "llvm/Analysis/Passes.h"
 #include "llvm/Analysis/Verifier.h"
 #include "llvm/Assembly/PrintModulePass.h"
 #include "llvm/CodeGen/AsmPrinter.h"
@@ -32,7 +33,6 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/StandardPasses.h"
 using namespace llvm;
 
 namespace llvm {
@@ -292,7 +292,11 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM,
   // Standard LLVM-Level Passes.
 
   // Basic AliasAnalysis support.
-  createStandardAliasAnalysisPasses(&PM);
+  // Add TypeBasedAliasAnalysis before BasicAliasAnalysis so that
+  // BasicAliasAnalysis wins if they disagree. This is intended to help
+  // support "obvious" type-punning idioms.
+  PM.add(createTypeBasedAliasAnalysisPass());
+  PM.add(createBasicAliasAnalysisPass());
 
   // Before running any passes, run the verifier to determine if the input
   // coming from the front-end and/or optimizer is valid.