Add support for byval function whose argument is not 32 bit aligned.
To do this it is necessary to add a "always inline" argument to the
memcpy node. For completeness I have also added this node to m

Add support for byval function whose argument is not 32 bit aligned.
To do this it is necessary to add a "always inline" argument to the
memcpy node. For completeness I have also added this node to memmove
and memset. I have also added getMem* functions, because the extra
argument makes it cumbersome to use getNode and because I get confused
by it :-)

llvm-svn: 43172

show more ...

remove dead enum, make setNodeId public.

llvm-svn: 42977

Add an ISD::FPOW node type.

llvm-svn: 42879

Oops. Forgot this.

llvm-svn: 42691

Define target-indepenent SDNode types for multiply and divide that
produce two results.

llvm-svn: 42632

Fix typo in comment.

llvm-svn: 42631

Merge DenseMapKeyInfo & DenseMapValueInfo into DenseMapInfo

Add a new DenseMapInfo::isEqual method to allow clients to redefine
the equality predicate used when probing the hash table.

llvm-svn: 42

Merge DenseMapKeyInfo & DenseMapValueInfo into DenseMapInfo

Add a new DenseMapInfo::isEqual method to allow clients to redefine
the equality predicate used when probing the hash table.

llvm-svn: 42042

show more ...

Add a utility function to SDOperand for testing if a value is unused.

llvm-svn: 42038

Fold the adjust_trampoline intrinsic into
init_trampoline. There is now only one
trampoline intrinsic.

llvm-svn: 41841

Add mod, copysign, abs operations to APFloat.
Implement some constant folding in SelectionDAG and
DAGCombiner using APFloat. Remove double versions
of constructor and getValue from ConstantFPSDNode.

Add mod, copysign, abs operations to APFloat.
Implement some constant folding in SelectionDAG and
DAGCombiner using APFloat. Remove double versions
of constructor and getValue from ConstantFPSDNode.

llvm-svn: 41664

show more ...

Change LegalFPImmediates to use APFloat.
Add APFloat interfaces to ConstantFP, SelectionDAG.
Fix integer bit in double->APFloat conversion.
Convert LegalizeDAG to use APFloat interface in
ConstantFPS

Change LegalFPImmediates to use APFloat.
Add APFloat interfaces to ConstantFP, SelectionDAG.
Fix integer bit in double->APFloat conversion.
Convert LegalizeDAG to use APFloat interface in
ConstantFPSDNode uses.

llvm-svn: 41587

show more ...

Revise per review comments.

llvm-svn: 41409

Add APFloat interface to ConstantFPSDNode. Change
over uses in DAGCombiner. Fix interfaces to work
with APFloats.

llvm-svn: 41407

Use APFloat internally for ConstantFPSDNode.

llvm-svn: 41372

propagate struct size and alignment of byval arguments to the DAG

llvm-svn: 40986

Do not emit copies for physical register output if it's not used.

llvm-svn: 40722

Support for trampolines, except for X86 codegen which is
still under discussion.

llvm-svn: 40549

Add selection DAG nodes for subreg insert/extract. PR1350

llvm-svn: 40516

Long live the exception handling!

This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and

Long live the exception handling!

This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be
thought as 'finished': I expect many small and not so small glitches
everywhere.

llvm-svn: 39855

show more ...

Move DenseMapKeyInfo<SDOperand> from LegalizeDAG.cpp to SelectionDAGNodes.h

llvm-svn: 38484

Fix a comment so that the element numbering match the actual element
operand numbering.

llvm-svn: 37944

Add the byval attribute

llvm-svn: 37940

Add new TargetLowering code to provide the final register type that an
illegal value type will be transformed to, for code that needs the
register type after all transformations instead of just after

Add new TargetLowering code to provide the final register type that an
illegal value type will be transformed to, for code that needs the
register type after all transformations instead of just after the first
transformation.

Factor out the code that uses this information to do copy-from-regs and
copy-to-regs for various purposes into separate functions so that they
are done consistently.

llvm-svn: 37781

show more ...

Generalize MVT::ValueType and associated functions to be able to represent
extended vector types. Remove the special SDNode opcodes used for pre-legalize
vector operations, and the special MVT::Vecto

Generalize MVT::ValueType and associated functions to be able to represent
extended vector types. Remove the special SDNode opcodes used for pre-legalize
vector operations, and the special MVT::Vector type used with them. Adjust
lowering and legalize to work with the normal SDNode kinds instead, and to
use the normal MVT functions to work with vector types instead of using the
two special operands that the pre-legalize nodes held.

This allows pre-legalize and post-legalize DAGs, and the code that operates
on them, to be more consistent. Pre-legalize vector operators can be handled
more consistently with scalar operators. And, -view-dag-combine1-dags and
-view-legalize-dags now look prettier for vector code.

llvm-svn: 37719

show more ...

Introduce new SelectionDAG node opcodes VEXTRACT_SUBVECTOR and
VCONCAT_VECTORS. Use these for CopyToReg and CopyFromReg legalizing in
the case that the full register is to be split into subvectors in

Introduce new SelectionDAG node opcodes VEXTRACT_SUBVECTOR and
VCONCAT_VECTORS. Use these for CopyToReg and CopyFromReg legalizing in
the case that the full register is to be split into subvectors instead
of scalars. This replaces uses of VBIT_CONVERT to present values as
vector-of-vector types in order to make whole subvectors accessible via
BUILD_VECTOR and EXTRACT_VECTOR_ELT.

This is in preparation for adding extended ValueType values, where
having vector-of-vector types is undesirable.

llvm-svn: 37569

show more ...