Almost all occurrences of "bytecode" in the sources have been eliminated.

llvm-svn: 37913

exception handling table if we encounter it multiple
times.  Filters could be folded harder than this, but
that would mean a lot more work for not much gain.

llvm-svn: 37908

llvm-svn: 37890

Drop the eh.filter intrinsic.

llvm-svn: 37875

follow the rules for undef used in instcombine.

llvm-svn: 37851

model to include f32 variants.  Some factoring
improvments forthcoming.

llvm-svn: 37847

refactored getCopyFromParts and getCopyToParts, which are more general.
This effectively adds support for lowering illegal by-val vector call
arguments.

llvm-svn: 37843

visitFSUB to fold 0-B to -B in UnsafeFPMath mode. Also change visitFNEG
to use isNegatibleForFree/GetNegatedExpression instead of doing a subset
of the same thing manually.

This fixes test/CodeGen/X86/negative-sin.ll.

llvm-svn: 37842

llvm-svn: 37818

llvm-svn: 37816

llvm-svn: 37814

llvm-svn: 37799

Uncovered by _GLIBCXX_DEBUG.

llvm-svn: 37795

ordering and thus violated the strict weak ordering requirement of
priority_queue.  Uncovered by _GLIBCXX_DEBUG.

llvm-svn: 37794

_GLIBCXX_DEBUG.

llvm-svn: 37793

vectors are split down to single elements as part of legalization.

llvm-svn: 37785

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

llvm-svn: 37764

Partial fix for PR1502: If a EH register is needed in a successor of landing pad, add it as livein to all the blocks in the paths between the landing pad and the specified block.

llvm-svn: 37763

llvm-svn: 37758

to compute the number and type of registers needed for vector values
instead of computing it manually. This fixes PR1529.

llvm-svn: 37755

with single-element vectors.

llvm-svn: 37752

the SPASS miscompilation)

llvm-svn: 37750

llvm-svn: 37749

quality hit. will look at this soon.

llvm-svn: 37748

some issues)

llvm-svn: 37747

llvm-svn: 37746

llvm-svn: 37743

llvm-svn: 37740

Properly handle kills of a physical register which has sub-registers that are read by later instructions.

llvm-svn: 37739

llvm-svn: 37725

and code quality by ~2% on my tests.

A big thank you to Roman Levenstein for this patch! See
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070618/050717.html
for more details.

llvm-svn: 37724

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

TargetLowering to SelectionDAG so that they have more convenient
access to the current DAG, in preparation for the ValueType routines
being changed from standalone functions to members of SelectionDAG for
the pre-legalize vector type changes.

llvm-svn: 37704

llvm-svn: 37703

std::set is really really terrible. Switch to SmallPtrSet to reduce compile time. For Duraid's example. The overall isel time is reduced from 0.6255 sec to 0.1876 sec.

llvm-svn: 37701

llvm-svn: 37688

TargetLowering::getNumRegisters and similar, to avoid confusion with
the actual number of elements for vector types.

llvm-svn: 37687

(add (select cc, 0, c), x) -> (select cc, x, (add, x, c))
(sub x, (select cc, 0, c)) -> (select cc, x, (sub, x, c))

llvm-svn: 37685

Avoid if-converting simple block that ends with unconditional branch or fallthrough unless it branches / falls to the 'false' block. Not profitable, may end up increasing code size.

llvm-svn: 37660