is trivially rematerializable and integrate it into
TargetInstrInfo::isTriviallyReMaterializable. This way, all places that
need to know whether an instruction is rematerializable will get the
same answer.

This enables the useful parts of the aggressive-remat option by
default -- using AliasAnalysis to determine whether a memory location
is invariant, and removes the questionable parts -- rematting operations
with virtual register inputs that may not be live everywhere.

llvm-svn: 83687

Extract scope information from the variable itself, instead of relying on alloca or llvm.dbg.declare location.

While recording beginning of a function, use scope info from the first location entry instead of just relying on first location entry itself.

llvm-svn: 83684

mappings, which could cause errors and assert-failures.  This patch fixes that,
adds a test, and refactors the global-mapping-removal code into a single place.

llvm-svn: 83678

llvm-svn: 83677

constants used in inlining heuristics (especially
those used in more than one file).  No functional change.

llvm-svn: 83675

lists.  Changed ARMAsmParser::MatchRegisterName to return -1 instead of 0 on
errors so 0-15 values could be returned as register numbers.  Also added the
rest of the arm register names to the currently hacked up version to allow more
testing.  Some changes to ARMAsmParser::ParseOperand to give different errors
for things not yet supported and some additions to the hacked
ARMAsmParser::MatchInstruction to allow more testing for now.

llvm-svn: 83673

TargetInstrDesc::isRematerializable flag, so it isn't necessary to do
this check in its callers.

llvm-svn: 83671

when one of the bits being tested would end up being the sign bit in the
narrower type, and a signed comparison is being performed, since this would
change the result of the signed comparison. This fixes PR5132.

llvm-svn: 83670

information when unfolding memory references.

llvm-svn: 83656

Check invalid debug info for enums. This may happen when underlyng enum is optimized away. Eventually DwarfChecker will clean this up during llvm verification stage.

llvm-svn: 83655

llvm-svn: 83653

llvm-svn: 83649

llvm-svn: 83624

llvm-svn: 83622

llvm-svn: 83608

instructions.

llvm-svn: 83606

and that will make Caller too big to inline, see if it
might be better to inline Caller into its callers instead.
This situation is described in PR 2973, although I haven't
tried the specific case in SPASS.

llvm-svn: 83602

llvm-svn: 83601

llvm-svn: 83600

llvm-svn: 83598

llvm-svn: 83596

Also fix some copy-and-paste errors in previous changes.

llvm-svn: 83590

llvm-svn: 83589

llvm-svn: 83585

llvm-svn: 83575

we should allow a "null" with this dyn_cast.

llvm-svn: 83573

llvm-svn: 83572

llvm-svn: 83571

llvm-svn: 83568

llvm-svn: 83566

llvm-svn: 83565

similar to getTargetExtractSubreg.

llvm-svn: 83564

Do not record line number to implicitly mark start of function if function has arguments. Extra line number entries trip gdb in some cases.

llvm-svn: 83563

llvm-svn: 83556

to declare that they preserve other passes without needing to pull in
additional header file or library dependencies. Convert MachineFunctionPass
and CodeGenLICM to make use of this.

llvm-svn: 83555

llvm-svn: 83549

"LoopVR's logic was copied into ScalarEvolution::getUnsignedRange and 
::getSignedRange. Please delete LoopVR."

llvm-svn: 83531

llvm-svn: 83526

llvm-svn: 83522

llvm-svn: 83521