llvm-svn: 70661

them to bool.

llvm-svn: 70653

makes ScalarEvolution::deleteValueFromRecords, and it's code that
subtly needed to be called before ReplaceAllUsesWith, unnecessary.

It also makes ValueDeletionListener unnecessary.

llvm-svn: 70645

to make the copy constructor and destructor protected, and corresponding
adjustments to the unittests.

llvm-svn: 70644

llvm-svn: 70643

a default value, and will hopefully be going away soon.

llvm-svn: 70642

of returning a list of pointers to Values that are deleted. This was
unsafe, because the pointers in the list are, by nature of what
RecursivelyDeleteDeadInstructions does, always dangling. Replace this
with a simple callback mechanism. This may eventually be removed if
all clients can reasonably be expected to use CallbackVH.

Use this to factor out the dead-phi-cycle-elimination code from LSR
utility function, and generalize it to use the
RecursivelyDeleteTriviallyDeadInstructions utility function.

This makes LSR more aggressive about eliminating dead PHI cycles;
adjust tests to either be less trivial or to simply expect fewer
instructions.

llvm-svn: 70636

it also forget any SCEVs associated with loop-header PHIs in the loop,
as they may be dependent on trip count information.

llvm-svn: 70633

deleting it.  This will let ScalarEvolution be more complete about
updating its records.

llvm-svn: 70632

llvm-svn: 70630

of LSR. This makes the AddUsersIfInteresting phase of LSR a pure
analysis instead of a phase that potentially does CFG modifications.

The conditions where this code would actually perform a split are
rare, and in the cases where it actually would do a split the split
is usually undone by CodeGenPrepare, and in cases where splits
actually survive into codegen, they appear to hurt more often than
they help.

llvm-svn: 70625

"Invalid primitive type" on input containing the x86_fp80 type.'
Patch by Collin Winter!

llvm-svn: 70610

helps some problems on win32 platforms (PR4119)

llvm-svn: 70603

"Construction" makes it sound like a pass that might
modify the CFG to construct natural loops.

llvm-svn: 70580

llvm-svn: 70572

llvm-svn: 70569

Changes to take advantage of this will come later.

llvm-svn: 70560

llvm-svn: 70557

is associated with a SCEV expansion.

llvm-svn: 70556

target hooks canLosslesslyBitCastTo and isTruncateFree. This allows
targets to avoid worrying about handling all combinations of integer
and pointer types.

llvm-svn: 70555

artificial "ptrtoint", as it tends to clutter up complicated
expressions. The cast operators now print both source and
destination types, which is usually sufficient.

llvm-svn: 70554

always folded by the regular constant folder because it doesn't have
TargetData information.

llvm-svn: 70553

Instructions.

llvm-svn: 70552

llvm-svn: 70551

llvm-svn: 70550

avoids duplicate scevs that differ only in type.

llvm-svn: 70549

llvm-svn: 70548

llvm-svn: 70546

llvm-svn: 70539

llvm-svn: 70537

gone lost during the pImpl conversion.

llvm-svn: 70536

llvm-svn: 70534

llvm-svn: 70533

llvm-svn: 70529

llvm-svn: 70524

llvm-svn: 70522

Add a comment to refer to the section of the programmer's manual that explains what the pointer tagging in Use is for.

llvm-svn: 70521

-Replace DebugLocTuple's Source ID with CompileUnit's GlobalVariable*
-Remove DwarfWriter::getOrCreateSourceID
-Make necessary changes for the above (fix callsites, etc.)

llvm-svn: 70520

Don't include memory allocated for global variables during relocations resolution.

llvm-svn: 70517

comment a bit.

llvm-svn: 70515