[PM] Port StripDeadPrototypes to the new pass manager
This is a really straightforward port. Also adds a test for the pass,
since it only seemed to be tested tangentially before.
llvm-svn: 251726
diff --git a/llvm/lib/Transforms/IPO/IPO.cpp b/llvm/lib/Transforms/IPO/IPO.cpp
index 7ecc377..97e4584 100644
--- a/llvm/lib/Transforms/IPO/IPO.cpp
+++ b/llvm/lib/Transforms/IPO/IPO.cpp
@@ -40,7 +40,7 @@
initializeMergeFunctionsPass(Registry);
initializePartialInlinerPass(Registry);
initializePruneEHPass(Registry);
- initializeStripDeadPrototypesPassPass(Registry);
+ initializeStripDeadPrototypesLegacyPassPass(Registry);
initializeStripSymbolsPass(Registry);
initializeStripDebugDeclarePass(Registry);
initializeStripDeadDebugInfoPass(Registry);
diff --git a/llvm/lib/Transforms/IPO/StripDeadPrototypes.cpp b/llvm/lib/Transforms/IPO/StripDeadPrototypes.cpp
index 22ba1c6..c94cc7c 100644
--- a/llvm/lib/Transforms/IPO/StripDeadPrototypes.cpp
+++ b/llvm/lib/Transforms/IPO/StripDeadPrototypes.cpp
@@ -14,35 +14,19 @@
//
//===----------------------------------------------------------------------===//
-#include "llvm/Transforms/IPO.h"
+#include "llvm/Transforms/IPO/StripDeadPrototypes.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
+#include "llvm/Transforms/IPO.h"
+
using namespace llvm;
#define DEBUG_TYPE "strip-dead-prototypes"
STATISTIC(NumDeadPrototypes, "Number of dead prototypes removed");
-namespace {
-
-/// @brief Pass to remove unused function declarations.
-class StripDeadPrototypesPass : public ModulePass {
-public:
- static char ID; // Pass identification, replacement for typeid
- StripDeadPrototypesPass() : ModulePass(ID) {
- initializeStripDeadPrototypesPassPass(*PassRegistry::getPassRegistry());
- }
- bool runOnModule(Module &M) override;
-};
-
-} // end anonymous namespace
-
-char StripDeadPrototypesPass::ID = 0;
-INITIALIZE_PASS(StripDeadPrototypesPass, "strip-dead-prototypes",
- "Strip Unused Function Prototypes", false, false)
-
-bool StripDeadPrototypesPass::runOnModule(Module &M) {
+static bool stripDeadPrototypes(Module &M) {
bool MadeChange = false;
// Erase dead function prototypes.
@@ -69,6 +53,32 @@
return MadeChange;
}
+PreservedAnalyses StripDeadPrototypesPass::run(Module &M) {
+ if (stripDeadPrototypes(M))
+ return PreservedAnalyses::none();
+ return PreservedAnalyses::all();
+}
+
+namespace {
+
+class StripDeadPrototypesLegacyPass : public ModulePass {
+public:
+ static char ID; // Pass identification, replacement for typeid
+ StripDeadPrototypesLegacyPass() : ModulePass(ID) {
+ initializeStripDeadPrototypesLegacyPassPass(
+ *PassRegistry::getPassRegistry());
+ }
+ bool runOnModule(Module &M) override {
+ return stripDeadPrototypes(M);
+ }
+};
+
+} // end anonymous namespace
+
+char StripDeadPrototypesLegacyPass::ID = 0;
+INITIALIZE_PASS(StripDeadPrototypesLegacyPass, "strip-dead-prototypes",
+ "Strip Unused Function Prototypes", false, false)
+
ModulePass *llvm::createStripDeadPrototypesPass() {
- return new StripDeadPrototypesPass();
+ return new StripDeadPrototypesLegacyPass();
}