[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, 8 insertions, 7 deletions

diff --git a/llvm/tools/opt/opt.cpp b/llvm/tools/opt/opt.cpp
index 00337ded99a..59b63093b36 100644
--- a/llvm/tools/opt/opt.cpp
+++ b/llvm/tools/opt/opt.cpp
@@ -35,7 +35,7 @@
 #include "llvm/LinkAllIR.h"
 #include "llvm/LinkAllPasses.h"
 #include "llvm/MC/SubtargetFeature.h"
-#include "llvm/PassManager.h"
+#include "llvm/IR/LegacyPassManager.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/ManagedStatic.h"
@@ -180,7 +180,7 @@ DefaultDataLayout("default-data-layout",
 
 
 
-static inline void addPass(PassManagerBase &PM, Pass *P) {
+static inline void addPass(legacy::PassManagerBase &PM, Pass *P) {
   // Add the pass to the pass manager...
   PM.add(P);
 
@@ -195,7 +195,8 @@ static inline void addPass(PassManagerBase &PM, Pass *P) {
 /// OptLevel.
 ///
 /// OptLevel - Optimization Level
-static void AddOptimizationPasses(PassManagerBase &MPM,FunctionPassManager &FPM,
+static void AddOptimizationPasses(legacy::PassManagerBase &MPM,
+                                  legacy::FunctionPassManager &FPM,
                                   unsigned OptLevel, unsigned SizeLevel) {
   FPM.add(createVerifierPass());          // Verify that input is correct
   MPM.add(createDebugInfoVerifierPass()); // Verify that debug info is correct
@@ -230,7 +231,7 @@ static void AddOptimizationPasses(PassManagerBase &MPM,FunctionPassManager &FPM,
   Builder.populateModulePassManager(MPM);
 }
 
-static void AddStandardLinkPasses(PassManagerBase &PM) {
+static void AddStandardLinkPasses(legacy::PassManagerBase &PM) {
   PassManagerBuilder Builder;
   Builder.VerifyInput = true;
   Builder.StripDebug = StripDebug;
@@ -406,7 +407,7 @@ int main(int argc, char **argv) {
   // Create a PassManager to hold and optimize the collection of passes we are
   // about to build.
   //
-  PassManager Passes;
+  legacy::PassManager Passes;
 
   // Add an appropriate TargetLibraryInfo pass for the module's triple.
   TargetLibraryInfoImpl TLII(ModuleTriple);
@@ -430,9 +431,9 @@ int main(int argc, char **argv) {
   Passes.add(createTargetTransformInfoWrapperPass(TM ? TM->getTargetIRAnalysis()
                                                      : TargetIRAnalysis()));
 
-  std::unique_ptr<FunctionPassManager> FPasses;
+  std::unique_ptr<legacy::FunctionPassManager> FPasses;
   if (OptLevelO1 || OptLevelO2 || OptLevelOs || OptLevelOz || OptLevelO3) {
-    FPasses.reset(new FunctionPassManager(M.get()));
+    FPasses.reset(new legacy::FunctionPassManager(M.get()));
     if (DL)
       FPasses->add(new DataLayoutPass());
     FPasses->add(createTargetTransformInfoWrapperPass(