+void Function::dropAllReferences() {
+ for (iterator I = begin(), E = end(); I != E; ++I)
+ I->dropAllReferences();
+ BasicBlocks.clear(); // Delete all basic blocks...
+}
+
+/// getIntrinsicID - This method returns the ID number of the specified
+/// function, or Intrinsic::not_intrinsic if the function is not an
+/// intrinsic, or if the pointer is null. This value is always defined to be
+/// zero to allow easy checking for whether a function is intrinsic or not. The
+/// particular intrinsic functions which correspond to this value are defined in
+/// llvm/Intrinsics.h.
+///
+unsigned Function::getIntrinsicID() const {
+ if (getName().size() < 5 || getName()[4] != '.' || getName()[0] != 'l' ||
+ getName()[1] != 'l' || getName()[2] != 'v' || getName()[3] != 'm')
+ return 0; // All intrinsics start with 'llvm.'
+
+ assert(getName().size() != 5 && "'llvm.' is an invalid intrinsic name!");
+
+ // a table of all Alpha intrinsic functions
+ struct {
+ std::string name; // The name of the intrinsic
+ unsigned id; // Its ID number
+ } alpha_intrinsics[] = {
+ { "llvm.alpha.ctlz", Intrinsic::alpha_ctlz },
+ { "llvm.alpha.cttz", Intrinsic::alpha_cttz },
+ { "llvm.alpha.ctpop", Intrinsic::alpha_ctpop },
+ { "llvm.alpha.umulh", Intrinsic::alpha_umulh },
+ { "llvm.alpha.vecop", Intrinsic::alpha_vecop },
+ { "llvm.alpha.pup", Intrinsic::alpha_pup },
+ { "llvm.alpha.bytezap", Intrinsic::alpha_bytezap },
+ { "llvm.alpha.bytemanip", Intrinsic::alpha_bytemanip },
+ { "llvm.alpha.dfp_bop", Intrinsic::alpha_dfpbop },
+ { "llvm.alpha.dfp_uop", Intrinsic::alpha_dfpuop },
+ { "llvm.alpha.unordered", Intrinsic::alpha_unordered },
+ { "llvm.alpha.uqtodfp", Intrinsic::alpha_uqtodfp },
+ { "llvm.alpha.uqtosfp", Intrinsic::alpha_uqtosfp },
+ { "llvm.alpha.dfptosq", Intrinsic::alpha_dfptosq },
+ { "llvm.alpha.sfptosq", Intrinsic::alpha_sfptosq },
+ };
+ const unsigned num_alpha_intrinsics =
+ sizeof(alpha_intrinsics) / sizeof(*alpha_intrinsics);
+
+ switch (getName()[5]) {
+ case 'a':
+ if (getName().size() > 11 &&
+ std::string(getName().begin()+4, getName().begin()+11) == ".alpha.")
+ for (unsigned i = 0; i < num_alpha_intrinsics; ++i)
+ if (getName() == alpha_intrinsics[i].name)
+ return alpha_intrinsics[i].id;
+ break;
+ case 'd':
+ if (getName() == "llvm.dbg.stoppoint") return Intrinsic::dbg_stoppoint;
+ if (getName() == "llvm.dbg.region.start")return Intrinsic::dbg_region_start;
+ if (getName() == "llvm.dbg.region.end") return Intrinsic::dbg_region_end;
+ if (getName() == "llvm.dbg.func.start") return Intrinsic::dbg_func_start;
+ if (getName() == "llvm.dbg.declare") return Intrinsic::dbg_declare;
+ break;
+ case 'f':
+ if (getName() == "llvm.frameaddress") return Intrinsic::frameaddress;
+ break;
+ case 'g':
+ if (getName() == "llvm.gcwrite") return Intrinsic::gcwrite;
+ if (getName() == "llvm.gcread") return Intrinsic::gcread;
+ if (getName() == "llvm.gcroot") return Intrinsic::gcroot;
+ break;
+ case 'i':
+ if (getName() == "llvm.isunordered") return Intrinsic::isunordered;
+ break;
+ case 'l':
+ if (getName() == "llvm.longjmp") return Intrinsic::longjmp;
+ break;
+ case 'm':
+ if (getName() == "llvm.memcpy") return Intrinsic::memcpy;
+ if (getName() == "llvm.memmove") return Intrinsic::memmove;
+ if (getName() == "llvm.memset") return Intrinsic::memset;
+ break;
+ case 'r':
+ if (getName() == "llvm.returnaddress") return Intrinsic::returnaddress;
+ if (getName() == "llvm.readport") return Intrinsic::readport;
+ if (getName() == "llvm.readio") return Intrinsic::readio;
+ break;
+ case 's':
+ if (getName() == "llvm.setjmp") return Intrinsic::setjmp;
+ if (getName() == "llvm.sigsetjmp") return Intrinsic::sigsetjmp;
+ if (getName() == "llvm.siglongjmp") return Intrinsic::siglongjmp;
+ break;
+ case 'v':
+ if (getName() == "llvm.va_copy") return Intrinsic::vacopy;
+ if (getName() == "llvm.va_end") return Intrinsic::vaend;
+ if (getName() == "llvm.va_start") return Intrinsic::vastart;
+ case 'w':
+ if (getName() == "llvm.writeport") return Intrinsic::writeport;
+ if (getName() == "llvm.writeio") return Intrinsic::writeio;
+ break;
+ }
+ // The "llvm." namespace is reserved!
+ assert(0 && "Unknown LLVM intrinsic function!");
+ return 0;