#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/LeakDetector.h"
#include "llvm/Support/Dwarf.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/RandomNumberGenerator.h"
#include <algorithm>
#include <cstdarg>
#include <cstdlib>
//
Module::Module(StringRef MID, LLVMContext &C)
- : Context(C), Materializer(), ModuleID(MID), DL("") {
+ : Context(C), Materializer(), ModuleID(MID), RNG(nullptr), DL("") {
ValSymTab = new ValueSymbolTable();
NamedMDSymTab = new StringMap<NamedMDNode *>();
Context.addModule(this);
NamedMDList.clear();
delete ValSymTab;
delete static_cast<StringMap<NamedMDNode *> *>(NamedMDSymTab);
+ delete RNG;
}
/// getNamedValue - Return the first global value in the module with
return &DL;
}
+// We want reproducible builds, but ModuleID may be a full path so we just use
+// the filename to salt the RNG (although it is not guaranteed to be unique).
+RandomNumberGenerator &Module::getRNG() const {
+ if (RNG == nullptr) {
+ StringRef Salt = sys::path::filename(ModuleID);
+ RNG = new RandomNumberGenerator(Salt);
+ }
+ return *RNG;
+}
+
//===----------------------------------------------------------------------===//
// Methods to control the materialization of GlobalValues in the Module.
//