[𝘀𝗽𝗿] initial version

Created using spr 1.3.6-beta.1

Author: pcc

llvm/lib/Transforms/IPO/LowerTypeTests.cpp

@@ -132,6 +132,8 @@ static cl::opt<DropTestKind>
                                           "Drop all type test sequences")),
                     cl::Hidden, cl::init(DropTestKind::None));
 
+static cl::opt<bool> DropTypeTestsLate("lowertypetests-drop-type-tests-late");
+
 bool BitSetInfo::containsGlobalOffset(uint64_t Offset) const {
   if (Offset < ByteOffset)
     return false;
@@ -1075,7 +1077,8 @@ void LowerTypeTestsModule::importTypeTest(CallInst *CI) {
     return;
 
   TypeIdLowering TIL = importTypeId(TypeIdStr->getString());
-  Value *Lowered = lowerTypeTestCall(TypeIdStr, CI, TIL);
+  Value *Lowered = DropTypeTestsLate ? ConstantInt::getTrue(M.getContext())
+                                     : lowerTypeTestCall(TypeIdStr, CI, TIL);
   if (Lowered) {
     CI->replaceAllUsesWith(Lowered);
     CI->eraseFromParent();

llvm/tools/llvm-lto2/llvm-lto2.cpp

@@ -247,7 +247,7 @@ template <typename T> static T check(ErrorOr<T> E, std::string Msg) {
 }
 
 static int usage() {
-  errs() << "Available subcommands: dump-symtab run\n";
+  errs() << "Available subcommands: dump-symtab run print-guid\n";
   return 1;
 }
 
@@ -610,5 +610,7 @@ int main(int argc, char **argv) {
     return dumpSymtab(argc - 1, argv + 1);
   if (Subcommand == "run")
     return run(argc - 1, argv + 1);
+  if (Subcommand == "print-guid" && argc > 2)
+    outs() << GlobalValue::getGUIDAssumingExternalLinkage(argv[2]);
   return usage();
 }