llvm-svn: 36352

Fixes unexpected failures on FreeBSD/amd64 of:
  CFrontend/2005-09-24-BitFieldCrash.c:
  CFrontend/2007-02-04-EmptyStruct.c:
  CFrontend/2007-03-26-ZeroWidthBitfield.c:
  CodeGen/Generic/2005-10-18-ZeroSizeStackObject.ll:

llvm-svn: 35828

llvm-svn: 34917

llvm-svn: 34799

uses them.

llvm-svn: 34432

rules alignment is to pick the alignment that corresponds to the smallest
specified alignment that is larger than the bit width of the type or the
largest specified integer alignment if none are larger than the bitwidth
of the type. For the byte size, the size returned is the next larger
multiple of the alignment for that type (using the above rule). This patch
also changes bit widths from "short" to "uint32_t" to ensure there are
enough bits to specify any bit width that LLVM can handle (currently 2^23);
16-bits isn't enough.

llvm-svn: 34431

This fixes the UnitTests/Vector/sumarray-dbl regressions.

llvm-svn: 34358

llvm-svn: 34356

Patch by Scott Michel.

llvm-svn: 34354

llvm-svn: 34352

PACKED_ALIGN -> VECTOR_ALIGN

llvm-svn: 34330

Make sure we found an existing Alignment before overwriting it.

llvm-svn: 34308

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

llvm-svn: 34293

Chris Lattner's code style suggestions.

Patch by Scott Michel!

llvm-svn: 34292

Patch by Scott Michel.

llvm-svn: 34266

-load-vn -gcse by 2.3%.

llvm-svn: 34160

llvm-svn: 34159

after the StructLayout object in memory.  This marginally improves locality,
speeding up -load-vn -gcse by ~0.8%.

llvm-svn: 34158

llvm-svn: 34157

llvm-svn: 34156

llvm-svn: 34154

in a vector.

llvm-svn: 34153

must in order for backends that do want to support large integer types to be
able to function. Consequently, don't assert if the bitwidth > 64 bits
when computing the size and alignment. Instead, compute the size by rounding
up to the next even number of bytes for the size. Compute the alignment
as the same as the LongABIAlignment. These provide reasonable defaults
that the target can override.

llvm-svn: 33943

llvm-svn: 33719

The Module::setEndianness and Module::setPointerSize methods have been
removed. Instead you can get/set the DataLayout. Adjust thise accordingly.

llvm-svn: 33530

llvm-svn: 33482

alignment.
- getPreferredAlignmentLog(): remove Double special case.

llvm-svn: 33445

to ensure the bit size of a type is identical before proceeding.

llvm-svn: 33413

an unspecified datatype in the datalayout is capped by the size of a pointer.

llvm-svn: 33411

llvm-svn: 33410

these alignment amounts to align scalars when we can.  Patch by Scott Michel!

llvm-svn: 33409

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

llvm-svn: 33076

Three changes:
1. Convert signed integer types to signless versions.
2. Implement the @sext and @zext parameter attributes. Previously the
   type of an function parameter was used to determine whether it should
   be sign extended or zero extended before the call. This information is
   now communicated via the function type's parameter attributes.
3. The interface to LowerCallTo had to be changed in order to accommodate
   the parameter attribute information. Although it would have been
   convenient to pass in the FunctionType itself, there isn't always one
   present in the caller. Consequently, a signedness indication for the
   result type and for each parameter was provided for in the interface
   to this method. All implementations were changed to make the adjustment
   necessary.

llvm-svn: 32788

llvm-svn: 32361

llvm-svn: 31171

This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.

llvm-svn: 31063

Remove explicit casts to std::string now that there is no overload resolution
issues in the TargetData ctors.

llvm-svn: 28830

add a new init method.

llvm-svn: 28828

llvm-svn: 28423