llvm-svn: 34703

llvm-svn: 34681

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

Implement constant folding via APInt instead of uint64_t.

llvm-svn: 34660

lib/Analysis/ConstantFolding.

llvm-svn: 34653

llvm-svn: 34548

Change use of "packed" term to "vector" in comments, strings, variable
names, etc.

llvm-svn: 34300

Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.

llvm-svn: 34293

llvm-svn: 33948

This allows us to eliminate many temporary vectors, and theirassociated malloc/free pairs.

llvm-svn: 33692

This is the final patch for this PR. It implements some minor cleanup
in the use of IntegerType, to wit:
1. Type::getIntegerTypeMask -> IntegerType::getBitMask
2. Type::Int*Ty changed to IntegerType* from Type*
3. ConstantInt::getType() returns IntegerType* now, not Type*

This also fixes PR1120.

Patch by Sheng Zhou.

llvm-svn: 33370

rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.

This makes naming much more consistent.  For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)

llvm-svn: 33225

constant folding of signed comparisons of bool.

llvm-svn: 33134

Implement the arbitrary bit-width integer feature. The feature allows
integers of any bitwidth (up to 64) to be defined instead of just 1, 8,
16, 32, and 64 bit integers.

This change does several things:
1. Introduces a new Derived Type, IntegerType, to represent the number of
   bits in an integer. The Type classes SubclassData field is used to
   store the number of bits. This allows 2^23 bits in an integer type.
2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and
   64-bit integers. These are replaced with just IntegerType which is not
   a primitive any more.
3. Adjust the rest of LLVM to account for this change.

Note that while this incremental change lays the foundation for arbitrary
bit-width integers, LLVM has not yet been converted to actually deal with
them in any significant way. Most optimization passes, for example, will
still only deal with the byte-width integer types.  Future increments
will rectify this situation.

llvm-svn: 33113

recommended that getBoolValue be replaced with getZExtValue and that
get(bool) be replaced by get(const Type*, uint64_t). This implements
those changes.

llvm-svn: 33110

llvm-svn: 33076

Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.

llvm-svn: 33073

llvm-svn: 33063

llvm-svn: 32859

llvm-svn: 32857

llvm-svn: 32798

Change signed integer type names to unsigned equivalents.

llvm-svn: 32780

1. Make the arguments const like the other ConstantFold* functions.
2. Clean up evaluateFCmpRelation so it makes sense for floating point.
3. Implement the use of evaluateFCmpRelation to fold floating point CEs
4. Shorten a variable name so more things fit on one line.
5. Fix various comments.

llvm-svn: 32759

llvm-svn: 32752

This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.

llvm-svn: 32751

llvm-svn: 32672

ConstRules. Remove the casting rules from ConstRules and subclasses. This
cleans up ConstantFolding significantly. Passes all tests.

llvm-svn: 32671

llvm-svn: 32650

ConstantInt doesn't care about the sign of the type it represents. It only
cares about the bitwidth so there is no need to make the sign of the type
match the SExt or ZExt constant expression.

llvm-svn: 32646

Rename getZeroExtend and getSignExtend to getZExt and getSExt to match
the the casting mnemonics in the rest of LLVM.

llvm-svn: 32514

llvm-svn: 32447

Transforms/ConstProp/bitcast.ll and fixes
SingleSource/Regression/C/2003-10-12-GlobalVarInitializers

llvm-svn: 32438

llvm-svn: 32428

llvm-svn: 32247

been in conjunction with something else. By right, they should just be
BitCasts.

llvm-svn: 32219

llvm-svn: 32213

llvm-svn: 32169

llvm-svn: 32165

until this happens at least make sext from bool and sitofp from bool do the
right thing.

llvm-svn: 32087

completely, as it is trivial.  We should probably do this for the rest of the
cast operations.  This fixes ConstProp/2006-12-01-TruncBoolBug.ll.

llvm-svn: 32081