[PM] Wire up support for writing bitcode with new PM.
This moves the old pass creation functionality to its own header and
updates the callers of that routine. Then it adds a new PM supporting
bitcode writer to the header file, and wires that up in the opt tool.
A test is added that round-trips code into bitcode and back out using
the new pass manager.
llvm-svn: 199078
diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriterPass.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriterPass.cpp
index e5e76e2..4757cac 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriterPass.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriterPass.cpp
@@ -1,4 +1,4 @@
-//===--- Bitcode/Writer/BitcodeWriterPass.cpp - Bitcode Writer ------------===//
+//===- BitcodeWriterPass.cpp - Bitcode writing pass -----------------------===//
//
// The LLVM Compiler Infrastructure
//
@@ -11,10 +11,18 @@
//
//===----------------------------------------------------------------------===//
+#include "llvm/Bitcode/BitcodeWriterPass.h"
#include "llvm/Bitcode/ReaderWriter.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"
using namespace llvm;
+PreservedAnalyses BitcodeWriterPass::run(Module *M) {
+ WriteBitcodeToFile(M, OS);
+ return PreservedAnalyses::all();
+}
+
namespace {
class WriteBitcodePass : public ModulePass {
raw_ostream &OS; // raw_ostream to print on
@@ -34,8 +42,6 @@
char WriteBitcodePass::ID = 0;
-/// createBitcodeWriterPass - Create and return a pass that writes the module
-/// to the specified ostream.
ModulePass *llvm::createBitcodeWriterPass(raw_ostream &Str) {
return new WriteBitcodePass(Str);
}