Support overloaded intrinsics bswap, ctpop, cttz, ctlz.

llvm-svn: 35547

Adjust for changes in the bit counting intrinsics. They all return i32
now so we have to trunc/zext the DAG node accordingly.

llvm-svn: 35546

Change getOperationName to return std::string instead of const char*

llvm-svn: 35545

Implement bswap, ctpop, ctlz, and cttz utilizing the new overloaded
intrinsic feature of tblgen. By defining llvm_int_ty to have an ValueType
of iAny, any intrinsic using that type becomes an overloaded intrinsic.
This signals that a) any integer type could be used for that argument and
b) the intrinsic needs a suffix to match each such argument for the
actual intrinsic.

llvm-svn: 35544

Intrinsic functions might need to be generated (if they are overloaded) so
returning a const char* is no longer possible. Change getOperationName to
return a std::string instead.

llvm-svn: 35543

Change the interface to the getName, getType, getDeclaration methods to
include the "actual" types of the result/arguments. This is necessary to
support overloaded intrinsics.

llvm-svn: 35542

Implement "actual" argument types for the Intrinsic member functions. This
involves changing the getName, getType, and getDeclaration methods to have
optional parameters for the actual types. These are necessary in order for
the type/name to be constructed properly for overloaded intrinsics. Only
the caller knows the actual argument types desired.

llvm-svn: 35541

1. Clear up confusion between "GotBits" and "ExpectBits". GotBits is the
   type actually provided. ExpectedBits is the type expected for the
   intrinsics. Before this patch, it was reversed!
2. Implement checks for overloaded intrinsics. This involves computing the
   suffix expected and making sure the suffix matches the function name. It
   also includes some intrinsic-specific checks such as ensuring that the
   bswap parameter and result are the same width and an even number of bytes.

llvm-svn: 35540

Implement code generation for overloaded intrinsic functions. The basic
difference is that "actual" argument types must be provided when
constructing intrinsic names and types. Also, for recognition, only the
prefix is examined. If it matches, the suffix is assumed to match. The
suffix is checked by the Verifier, however.

llvm-svn: 35539

Add an "iAny" ValueType as a place holder for an integer type of any
bit width. This is used for intrinsics overloading on integer type.

llvm-svn: 35538

llvm-svn: 35537

llvm-svn: 35536

llvm-svn: 35535

llvm-svn: 35534

llvm-svn: 35533

llvm-svn: 35532

llvm-svn: 35531

llvm-svn: 35530

llvm-svn: 35529

llvm-svn: 35528

llvm-svn: 35527

llvm-svn: 35526

llvm-svn: 35525

llvm-svn: 35524

llvm-svn: 35523

llvm-svn: 35522

llvm-svn: 35521

llvm-svn: 35520

llvm-svn: 35519

llvm-svn: 35518

combination.

llvm-svn: 35517

llvm-svn: 35516

llvm-svn: 35515

register more than once.

llvm-svn: 35513

of dead def live interval at 1 to avoid multiple def's targeting the same
register. The previous patch missed a case where the source operand is live-in.
In that case, remove the whole interval.

llvm-svn: 35512

llvm-svn: 35511

llvm-svn: 35510

llvm-svn: 35509

* Rename the FunctionType* parameter from M to FT on all the functions.
* Implement a fix for PR1293 by just asserting that library functions that
  must return pointers should have pointer typed results. This just makes
  sure that we don't attempt to use an uninitialized integer or something
  later on.

llvm-svn: 35508

llvm-svn: 35507