Re-implement clspv-opt as a standalone driver (#346)
* Fix #307 and #322.
This re-implements clspv-opt as a standalone driver. The initial
implementation used the plugin facility for LLVM opt, but this is
difficult to implement in Windows (#307).
The driver only supports LLVM scalar transformations and all of clspv
transformations. To do this, passes must be declared using LLVM's
INITIALIZE_PASS macro. Additionally, the function
initializeClspvPasses() must include a call to the initialize*()
function generated by INITIALIZE_PASS.
This change also adds tests for all the existing passes in clspv. It
does not check for specific transformations. It checks that the flags
are accepted by clspv-opt.
Finally, this change reduces the build time for LLVM by building no
target backends by default.
diff --git a/lib/SimplifyPointerBitcastPass.cpp b/lib/SimplifyPointerBitcastPass.cpp
index 06cdd8f..7a2dc7d 100644
--- a/lib/SimplifyPointerBitcastPass.cpp
+++ b/lib/SimplifyPointerBitcastPass.cpp
@@ -18,6 +18,8 @@
#include "llvm/Pass.h"
#include "llvm/Support/raw_ostream.h"
+#include "Passes.h"
+
using namespace llvm;
#define DEBUG_TYPE "SimplifyPointerBitcast"
@@ -37,8 +39,8 @@
} // namespace
char SimplifyPointerBitcastPass::ID = 0;
-static RegisterPass<SimplifyPointerBitcastPass>
- X("SimplifyPointerBitcast", "Simplify Pointer Bitcast Pass");
+INITIALIZE_PASS(SimplifyPointerBitcastPass, "SimplifyPointerBitcast",
+ "Simplify Pointer Bitcast Pass", false, false)
namespace clspv {
llvm::ModulePass *createSimplifyPointerBitcastPass() {