Change the llvm-gcc sanity check to look for "target datalayout" instead
of "implementation". The implementation keyword is no longer generated
by llvm or llvm-gcc.

llvm-svn: 35451

2. Let APInt variable do the binary operation stuff instead of using
   ConstantExpr::getXXX.

llvm-svn: 35450

big endian targets until llvm-gcc build issue has been resolved.

llvm-svn: 35449

llvm-svn: 35448

llvm-svn: 35446

llvm-svn: 35445

1. Line out nested call of APInt::zext/trunc.
2. Make more use of APInt::getHighBitsSet/getLowBitsSet.
3. Use APInt[] operator instead of expression like "APIntVal & SignBit".

llvm-svn: 35444

   instead of using ConstantExpr::getXX.
2. Use constant reference to APInt if possible instead of expensive
   APInt copy.

llvm-svn: 35443

front ends that do not depend on the GCC runtime (someday...).

llvm-svn: 35441

llvm-svn: 35440

llvm-svn: 35439

llvm-svn: 35438

behaviour in some cases.

llvm-svn: 35437

llvm-svn: 35436

llvm-svn: 35435

_test3:
        leaq (,%rdi,4), %rax
        orq %rdi, %rax
        ret

instead of:
_test2:
        movq %rdi, %rax
        shlq $2, %rax
        orq %rdi, %rax
        ret

llvm-svn: 35434

llvm-svn: 35433

llvm-svn: 35432

llvm-svn: 35431

llvm-svn: 35430

llvm-svn: 35429

2. Use APInt[] instead of "X & SignBit".
3. Clean up some codes.
4. Make the expression like "ShiftAmt = ShiftAmtC->getZExtValue()" safe.

llvm-svn: 35424

based on their ordering. This is applicable to ETForest::dominates() also.

llvm-svn: 35423

2. Make the APInt value do the zext/trunc stuff instead of using
   ConstantExpr::getZExt().

llvm-svn: 35422

llvm-svn: 35420

llvm-svn: 35419

llvm-svn: 35418

systems.

llvm-svn: 35416

llvm-svn: 35415

llvm-svn: 35414

Docuemnt the checkpoint keyword

llvm-svn: 35413

llvm-svn: 35412

llvm-svn: 35411

describes its function as check against unresolved types and definitions.
This is handy for forcing error messages in assembly test cases or otherwise
ensuring that everything is resolved at that point in the assembly.

llvm-svn: 35410

llvm-svn: 35409

1. Line out nested use of zext/trunc.
2. Make more use of getHighBitsSet/getLowBitsSet.
3. Use APInt[] != 0 instead of "(APInt & SignBit) != 0".

llvm-svn: 35408

llvm-svn: 35407

llvm-svn: 35406

llvm-svn: 35405

llvm-svn: 35404