[PM] Remove the old 'PassManager.h' header file at the top level of

LLVM's include tree and the use of using declarations to hide the
'legacy' namespace for the old pass manager.

This undoes the primary modules-hostile change I made to keep
out-of-tree targets building. I sent an email inquiring about whether
this would be reasonable to do at this phase and people seemed fine with
it, so making it a reality. This should allow us to start bootstrapping
with modules to a certain extent along with making it easier to mix and
match headers in general.

The updates to any code for users of LLVM are very mechanical. Switch
from including "llvm/PassManager.h" to "llvm/IR/LegacyPassManager.h".
Qualify the types which now produce compile errors with "legacy::". The
most common ones are "PassManager", "PassManagerBase", and
"FunctionPassManager".

llvm-svn: 229094

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/LTO/LTOCodeGenerator.cpp b/llvm/lib/LTO/LTOCodeGenerator.cpp
index f37d0a9fa44..6e5bdaa97c7 100644
--- a/llvm/lib/LTO/LTOCodeGenerator.cpp
+++ b/llvm/lib/LTO/LTOCodeGenerator.cpp
@@ -26,6 +26,7 @@
 #include "llvm/IR/DiagnosticInfo.h"
 #include "llvm/IR/DiagnosticPrinter.h"
 #include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/LegacyPassManager.h"
 #include "llvm/IR/Mangler.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Verifier.h"
@@ -35,7 +36,6 @@
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/SubtargetFeature.h"
-#include "llvm/PassManager.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/FormattedStream.h"
@@ -428,7 +428,7 @@ void LTOCodeGenerator::applyScopeRestrictions() {
   Module *mergedModule = IRLinker.getModule();
 
   // Start off with a verification pass.
-  PassManager passes;
+  legacy::PassManager passes;
   passes.add(createVerifierPass());
   passes.add(createDebugInfoVerifierPass());
 
@@ -499,7 +499,7 @@ bool LTOCodeGenerator::optimize(bool DisableOpt,
   this->applyScopeRestrictions();
 
   // Instantiate the pass manager to organize the passes.
-  PassManager passes;
+  legacy::PassManager passes;
 
   // Add an appropriate DataLayout instance for this module...
   mergedModule->setDataLayout(TargetMach->getDataLayout());
@@ -538,7 +538,7 @@ bool LTOCodeGenerator::compileOptimized(raw_ostream &out, std::string &errMsg) {
   // Mark which symbols can not be internalized
   this->applyScopeRestrictions();
 
-  PassManager codeGenPasses;
+  legacy::PassManager codeGenPasses;
 
   codeGenPasses.add(new DataLayoutPass());