printf("") -> noop.  Still need to do the xforms for fprintf.

This implements Transforms/SimplifyLibCalls/Printf.ll

llvm-svn: 35984

llvm-svn: 35768

fwrite optimizer.

llvm-svn: 35758

just return the string itself.

llvm-svn: 35755

llvm-svn: 35754

Fix some miscompilations in fprintf optimizer.

llvm-svn: 35753

and Prolangs-C/cdecl

llvm-svn: 35749

llvm-svn: 35713

llvm-svn: 35712

llvm-svn: 35711

llvm-svn: 35710

llvm-svn: 35709

llvm-svn: 35708

llvm-svn: 35707

SimplifyLibCalls/2007-04-06-strchr-miscompile.ll and PR1307

llvm-svn: 35706

llvm-svn: 35704

the start index of the array as well as the length.  No functionality change.

llvm-svn: 35703

Constant::isNullValue() in situations where it is possible.

llvm-svn: 34821

llvm-svn: 34222

the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.

llvm-svn: 33939

llvm-svn: 33712

confusion with external linkage types.

llvm-svn: 33663

llvm-svn: 33397

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

llvm-svn: 33218

llvm-svn: 33147

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

llvm-svn: 33001

Change the interface to Module::getOrInsertFunction to be easier to use,to resolve PR1088, and to help PR411.
This simplifies many clients also

llvm-svn: 32989

This patch replaces signed integer types with signless ones:
1. [US]Byte -> Int8
2. [U]Short -> Int16
3. [U]Int   -> Int32
4. [U]Long  -> Int64.
5. Removal of isSigned, isUnsigned, getSignedVersion, getUnsignedVersion
   and other methods related to signedness. In a few places this warranted
   identifying the signedness information from other sources.

llvm-svn: 32785

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: 32729

llvm-svn: 32709

llvm-svn: 32693

llvm-svn: 32534

creation calls.

llvm-svn: 32521

is 'unsigned'.

llvm-svn: 32279

The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.

llvm-svn: 31931

Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380