llvm-svn: 34703

llvm-svn: 34702

llvm-svn: 34701

llvm-svn: 34700

llvm-svn: 34699

llvm-svn: 34698

the bit width of negative numbers by computing the minimum bit width for a
negative value. E.g. 0x1800000000000000 could be just 0x8000000000000000

llvm-svn: 34695

llvm-svn: 34694

llvm-svn: 34692

llvm-svn: 34691

llvm-svn: 34690

llvm-svn: 34685

llvm-svn: 34684

llvm-svn: 34681

1. Add unsigned and signed versions of methods so a "bool" argument doesn't
   need to be passed in.
2. Make the various getMin/getMax functions all be inline since they are
   so simple.
3. Simplify sdiv and srem code.

llvm-svn: 34680

llvm-svn: 34678

Implement review feedback:
1. Use new APInt::RoundDoubleToAPInt interface to specify the bit width so
   that we don't have to truncate or extend in constant folding.
2. Fix a pasteo in SDiv that prevented a check for overflow.
3. Fix the shift operators: undef happens when the shift amount is equal
   to the bitwidth.

llvm-svn: 34677

2. Change RoundDoubleToAPInt to take a bit width parameter. Use that
   parameter to limit the bit width of the result.

llvm-svn: 34673

llvm-svn: 34670

llvm-svn: 34669

llvm-svn: 34668

llvm-svn: 34667

llvm-svn: 34666

llvm-svn: 34664

widths > 64 bits.

llvm-svn: 34663

llvm-svn: 34662

llvm-svn: 34661

Implement constant folding via APInt instead of uint64_t.

llvm-svn: 34660

llvm-svn: 34659

llvm-svn: 34658

lowering uses.

llvm-svn: 34657

llvm-svn: 34656

llvm-svn: 34655

'clients', etc, and adding CCValAssign instead.

llvm-svn: 34654

lib/Analysis/ConstantFolding.

llvm-svn: 34653

to infinite loop:
PPCMachineFunctionInfo.h updated: 1.2 -> 1.3
PPCRegisterInfo.cpp updated: 1.110 -> 1.111
PPCRegisterInfo.h updated: 1.28 -> 1.29

llvm-svn: 34652

forward() should not increment internal iterator. Its client may insert instruction between now and next forward() call.

llvm-svn: 34649

llvm-svn: 34648

Implement the first step towards arbitrary precision integer support in
LLVM. The APInt class provides arbitrary precision arithmetic and value
representation. This patch changes ConstantInt to use APInt as its value
representation without supporting bit widths > 64 yet. That change will
come after ConstantFolding handles bit widths > 64 bits.

llvm-svn: 34647

2. Rewrite operator=(const APInt& RHS) to allow the RHS to be a different
   bit width than the LHS. This makes it possible to use APInt as the key
   of a DenseMap, as needed for the IntConstants map in Constants.cpp
3. Fix operator=(uint64_t) to clear unused bits in case the client assigns
   a value that has more bits than the APInt allows.
4. Assert that bit widths are equal in operator==
5. Revise getHashValue() to put the bit width in the low order six bits.
   This should help to make i1 0, i2 0, ... i64 0 all distinct in the
   IntConstants DenseMap.

llvm-svn: 34646