* Convert the last use of a uint64_t that should have been an APInt.
* Change ComputeMaskedBits to have a const reference argument for the Mask
  so that recursions don't cause unneeded temporaries. This causes temps
  to be needed in other places (where the mask has to change) but this
  change optimizes for the recursion which is more frequent.
* Remove two instances of &ing a Mask with getAllOnesValue. Its not
  needed any more because APInt is accurate in its bit computations.
* Start using the getLowBitsSet and getHighBits set methods on APInt
  instead of shifting. This makes it more clear in the code what is
  going on.

llvm-svn: 35321

Allow the b/h/w/k constraints to be applied to values that have multiple alternatives, and end up not being registers.

llvm-svn: 35320

llvm-svn: 35319

llvm-svn: 35318

llvm-svn: 35317

llvm-svn: 35316

illegal. Instead do the 0 valued construction for the user. This is because
the caller may not know (or care to check) that the number of bits set is
zero.

llvm-svn: 35315

llvm-svn: 35314

they should have used the uint64_t constructor. This avoids causing
undefined results via shifts by the word size when the bit width is an
exact multiple of the word size.

llvm-svn: 35313

already covered by getLowBitsSet (i.e. when loBits==0). Consequently, remove
the default value for loBits and reorder the arguments to the more natural
loBits, hiBits order. This makes it more clear that this function is for bit
groups in the middle of the bit width and not towards one end or the other.

llvm-svn: 35312

and getLowBitsSet.

llvm-svn: 35311

llvm-svn: 35310

llvm-svn: 35309

llvm-svn: 35308

llvm-svn: 35307

llvm-svn: 35306

modulus. The previous change was a result of incorrect documentation in
the LangRef.html.

llvm-svn: 35305

bug in the srem implementation. Turns out it was a documentation bug
instead.

llvm-svn: 35304

divisor!

llvm-svn: 35303

the result must follow the sign of the divisor.

llvm-svn: 35302

that the sign of the result follows the sign of the divisor.

llvm-svn: 35301

1. Group similar methods into doxygen groups
2. Reorganize the groups into a consist flow.
3. Significantly improve the quality of the documentation on several methods
4. Rewrite srem and sdiv to eliminate a copy and improve readability.
5. Eliminate unneeded forward references.

llvm-svn: 35300

llvm-svn: 35299

llvm-svn: 35298

llvm-svn: 35297

llvm-svn: 35296

Convert some calls to ConstantInt::getZExtValue() into getValue() and
use APInt facilities in the subsequent computations.

llvm-svn: 35294

llvm-svn: 35293

llvm-svn: 35292

llvm-svn: 35291

Add final support to get the QT example to compile.

llvm-svn: 35290

llvm-svn: 35289

llvm-svn: 35288

* APIntify visitAdd and visitSelectInst
* Remove unused uint64_t versions of utility functions that have been
  replaced with APInt versions.
This completes most of the changes for APIntification of InstCombine. This
passes llvm-test and llvm/test/Transforms/InstCombine/APInt.

Patch by Zhou Sheng.

llvm-svn: 35287

llvm-svn: 35286

types. These tests mimic the integer test cases in the normal InstCombine
test suite but use "strange" integer bit widths.

Most tests written by Zhou Sheng, a few by me.

llvm-svn: 35284

APIntify visitDiv, visitMul and visitRem.

Patch by Zhou Sheng.

llvm-svn: 35283

llvm-svn: 35282

APIntify several utility functions supporting logical operators and shift
operators.

Patch by Zhou Sheng.

llvm-svn: 35281

argument that don't appear intended as implicit-conversion operators.

llvm-svn: 35280