Remove warnings about shadowed and unused variables.

llvm-svn: 52791

Add support for expanding PPC 128 bit floats.
For this it is convenient to permit floats to
be used with EXTRACT_ELEMENT, so I tweaked
things to allow that. I also added libcalls
for ppcf128 to i32

Add support for expanding PPC 128 bit floats.
For this it is convenient to permit floats to
be used with EXTRACT_ELEMENT, so I tweaked
things to allow that. I also added libcalls
for ppcf128 to i32 forms of FP_TO_XINT, since
they exist in libgcc and this case can certainly
occur (and does occur in the testsuite) - before
the i64 libcall was being used. Also, the
XINT_TO_FP result seemed to be wrong when
the argument is an i128: the wrong fudge
factor was added (the i32 and i64 cases were
handled directly, but the i128 code fell
through to some generic softening code which
seemed to think it was i64 to f32!). So I
fixed it by adding a fudge factor that I
found in my breakfast cereal.

llvm-svn: 52739

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Remove the OrigVT member from AtomicSDNode, as it is redundant with
the base SDNode's VTList.

llvm-svn: 52722

Added MemOperands to Atomic operations since Atomics touches memory.
Added abstract class MemSDNode for any Node that have an associated MemOperand
Changed atomic.lcs => atomic.cmp.swap, atomic.las =

Added MemOperands to Atomic operations since Atomics touches memory.
Added abstract class MemSDNode for any Node that have an associated MemOperand
Changed atomic.lcs => atomic.cmp.swap, atomic.las => atomic.load.add, and
atomic.lss => atomic.load.sub

llvm-svn: 52706

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Reorder some fields in SDNode. This avoids padding,
reducings its size from 80 to 72 on 64-bit hosts.

llvm-svn: 52584

Add some methods for querying the nature of a
store, like the methods for loads (and neaten
those up a bit while there).

llvm-svn: 52547

add missing atomic intrinsic from gcc

llvm-svn: 52270

Wrap MVT::ValueType in a struct to get type safety
and better control the abstraction. Rename the type
to MVT. To update out-of-tree patches, the main
thing to do is to rename MVT::ValueType to MVT

Wrap MVT::ValueType in a struct to get type safety
and better control the abstraction. Rename the type
to MVT. To update out-of-tree patches, the main
thing to do is to rename MVT::ValueType to MVT, and
rewrite expressions like MVT::getSizeInBits(VT) in
the form VT.getSizeInBits(). Use VT.getSimpleVT()
to extract a MVT::SimpleValueType for use in switch
statements (you will get an assert failure if VT is
an extended value type - these shouldn't exist after
type legalization).
This results in a small speedup of codegen and no
new testsuite failures (x86-64 linux).

llvm-svn: 52044

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For PR1338: rename include/llvm/ADT/ilist and friends to end with ".h"

llvm-svn: 51687

Remove warnings about unused parameters and shadowed variables.

llvm-svn: 51266

Add support for vicmp/vfcmp codegen, more legalize support coming.
This is necessary to unbreak the build.

llvm-svn: 50988

Make the use of the "noinline" attribute conditional on using GCC.

llvm-svn: 50789

Workaround for a compiler bug (see <rdar://problem/5852746>). Once that bug is
fixed, revert this patch.

llvm-svn: 50782

Added addition atomic instrinsics and, or, xor, min, and max.

llvm-svn: 50663

Fix more -Wshorten-64-to-32 warnings.

llvm-svn: 50659

Check we aren't trying to convert PPC long double.
This fixes the testsuite failure on ppcf128-4.ll.

llvm-svn: 49994

Remove the implicit conversion from SDOperandPtr to SDOperand*; this
may fix a build error on Visual Studio.

llvm-svn: 49876

Minor clean-up based on Dan's comments.

llvm-svn: 49844

Ongoing work on improving the instruction selection infrastructure:
Rename SDOperandImpl back to SDOperand.
Introduce the SDUse class that represents a use of the SDNode referred by
an SDOperand. Now

Ongoing work on improving the instruction selection infrastructure:
Rename SDOperandImpl back to SDOperand.
Introduce the SDUse class that represents a use of the SDNode referred by
an SDOperand. Now it is more similar to Use/Value classes.

Patch is approved by Dan Gohman.

llvm-svn: 49795

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Make 64-to-32 bit truncations explicit (prevent warnings).
All values here fit in 32 bits.

llvm-svn: 49736

Change Divided flag to Split, as suggested by Evan

llvm-svn: 49715

Add a divided flag for the first piece of an argument divided into mulitple parts. Fixes PR1643

llvm-svn: 49611

Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not Legal
on any current target and aren't optimized in DAGCombiner. Instead
of using intermediate nodes, expand the operations, choosing be

Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not Legal
on any current target and aren't optimized in DAGCombiner. Instead
of using intermediate nodes, expand the operations, choosing between
simple loads/stores, target-specific code, and library calls,
immediately.

Previously, the code to emit optimized code for these operations
was only used at initial SelectionDAG construction time; now it is
used at all times. This fixes some cases where rep;movs was being
used for small copies where simple loads/stores would be better.

This also cleans up code that checks for alignments less than 4;
let the targets make that decision instead of doing it in
target-independent code. This allows x86 to use rep;movs in
low-alignment cases.

Also, this fixes a bug that resulted in the use of rep;stos for
memsets of 0 with non-constant memory size when the alignment was
at least 4. It's better to use the library in this case, which
can be significantly faster when the size is large.

This also preserves more SourceValue information when memory
intrinsics are lowered into simple loads/stores.

llvm-svn: 49572

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Rename MemOperand to MachineMemOperand. This was suggested by
review feedback from Chris quite a while ago. No functionality
change.

llvm-svn: 49348

Re-commit of the r48822, where the infinite looping problem discovered
by Dan Gohman is fixed.

llvm-svn: 49330