only emit section labels if we have debug info, fixing a few
regtest failures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100366 91177308-0d34-0410-b5e6-96231b3b80d8

I was wrong, ocaml isn't referencing 'Ldata_begin', so remove it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100365 91177308-0d34-0410-b5e6-96231b3b80d8

add some assertions to EmitSectionOffset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100364 91177308-0d34-0410-b5e6-96231b3b80d8

stop emitting some dead L labels.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100363 91177308-0d34-0410-b5e6-96231b3b80d8

Store an use the symbols emitted at the start of the debug
sections instead of magically rematerializing them later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100362 91177308-0d34-0410-b5e6-96231b3b80d8

remove the didInitial ivar, rename emitInitial to be more
descriptive, change EmitSectionOffset back to taking a
symbol instead of a string.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100361 91177308-0d34-0410-b5e6-96231b3b80d8

simplify EmitSectionOffset a little bit, improve comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100360 91177308-0d34-0410-b5e6-96231b3b80d8

revert my patch, need to reconsider this and figure out what is really going on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100358 91177308-0d34-0410-b5e6-96231b3b80d8

fix pasto, this is the wrong setting for arm elf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100357 91177308-0d34-0410-b5e6-96231b3b80d8

The "IsSmall" argument to EmitSectionOffset is always true,
constant fold it away.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100356 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate the "isEH" argument to EmitSectionOffset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100355 91177308-0d34-0410-b5e6-96231b3b80d8

isAbsoluteEHSectionOffsets always returns false, eliminate it
and substitute false at the one call site.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100354 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up SSEDomainFix pass.

Restrict bit mask operations to the DomainValue class. Rename methods for
clarity.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100353 91177308-0d34-0410-b5e6-96231b3b80d8

don't reset the default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100352 91177308-0d34-0410-b5e6-96231b3b80d8

move some more stuff to asmprinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100351 91177308-0d34-0410-b5e6-96231b3b80d8

simplify some code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100350 91177308-0d34-0410-b5e6-96231b3b80d8

move EmitEncodingByte to AsmPrinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100349 91177308-0d34-0410-b5e6-96231b3b80d8

move EmitCFAByte to AsmPrinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100348 91177308-0d34-0410-b5e6-96231b3b80d8

inline EmitDifference away.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100347 91177308-0d34-0410-b5e6-96231b3b80d8

resolve a fixme.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100346 91177308-0d34-0410-b5e6-96231b3b80d8

move gettemplabel and getdwlabel to AsmPrinter and rename
them for consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100345 91177308-0d34-0410-b5e6-96231b3b80d8

move uleb/sleb printing into AsmPrinter from DwarfPrinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100344 91177308-0d34-0410-b5e6-96231b3b80d8

more interface cleanup make some helpers static functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100343 91177308-0d34-0410-b5e6-96231b3b80d8

clean up the asmprinter header and privatize some stuff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100342 91177308-0d34-0410-b5e6-96231b3b80d8

use stringref instead of strtol to avoid errno gymnastics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100341 91177308-0d34-0410-b5e6-96231b3b80d8

split inline asm support out to its own .cpp file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100340 91177308-0d34-0410-b5e6-96231b3b80d8

inline processDebugLoc and simplify it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100339 91177308-0d34-0410-b5e6-96231b3b80d8

minor tidying.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100338 91177308-0d34-0410-b5e6-96231b3b80d8

clean up the asmprinter interface a bit, rename a few
"Print" methods to "Emit".  Emit is something that goes
to an mc streamer, Print is something that goes to a
raw_ostream (for inline asm)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100337 91177308-0d34-0410-b5e6-96231b3b80d8

remove TargetMachine.h #include, also, TRI isn't used frequently
enough to warrant caching in AsmPrinter, so remove it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100336 91177308-0d34-0410-b5e6-96231b3b80d8

Switch SSEDomainFix to SpecificBumpPtrAllocator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100332 91177308-0d34-0410-b5e6-96231b3b80d8

lazily allocate the GCMetadataPrinters map and remove DenseMap
from the AsmPrinter interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100331 91177308-0d34-0410-b5e6-96231b3b80d8

CurFn is only used for relocations. Use EmissionDetails.MF->getFunction() instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100328 91177308-0d34-0410-b5e6-96231b3b80d8

Momentous day: remove the "O" member from AsmPrinter.  Now all
"asm printering" happens through MCStreamer.  This also
Streamerizes PIC16 debug info, which escaped my attention.

This removes a leak from LLVMTargetMachine of the 'legacy'
output stream.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100327 91177308-0d34-0410-b5e6-96231b3b80d8

now that all operand printing happens to specified streams, we can
print function level inline asm with EmitInlineAsm instead of writing
it directly to "O".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100326 91177308-0d34-0410-b5e6-96231b3b80d8

remove the raw_ostream from various dwarf printing things.

The only thing left is LEB printing, which uses EmitRawText
for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100325 91177308-0d34-0410-b5e6-96231b3b80d8

mcize the gc metadata printing stuff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100324 91177308-0d34-0410-b5e6-96231b3b80d8

use EmitRawText instead of O in DwarfPrinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100323 91177308-0d34-0410-b5e6-96231b3b80d8

mc'ize the remaining uses of O.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100322 91177308-0d34-0410-b5e6-96231b3b80d8

finish eliminating uses of O.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100321 91177308-0d34-0410-b5e6-96231b3b80d8

mcize more of ppc stub printing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100320 91177308-0d34-0410-b5e6-96231b3b80d8

mcize a bunch more stuff, using EmitRawText for things we
don't have mcstreamer support for yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100319 91177308-0d34-0410-b5e6-96231b3b80d8

convert the non-MCInstPrinter'ized EmitInstruction
implementations to use EmitRawText instead of writing
directly to "O".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100318 91177308-0d34-0410-b5e6-96231b3b80d8

streamerize the rest of PIC16 asm printer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100317 91177308-0d34-0410-b5e6-96231b3b80d8

streamerize printing of dbg_value, the x86 backend is now fully
streamerized for everything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100316 91177308-0d34-0410-b5e6-96231b3b80d8

split DEBUG_VALUE printing stuff out to its own method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100315 91177308-0d34-0410-b5e6-96231b3b80d8

mc'ize elf stub printing, convert cygwin stuff to EmitRawText,
which will abort in .o file writing mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100314 91177308-0d34-0410-b5e6-96231b3b80d8

fix PrintAsmOperand and PrintAsmMemoryOperand to pass down
raw_ostream to print to.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100313 91177308-0d34-0410-b5e6-96231b3b80d8

use predicates in DBG_VALUE printing code to simplify it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100312 91177308-0d34-0410-b5e6-96231b3b80d8

remove more implicit uses of "O".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100311 91177308-0d34-0410-b5e6-96231b3b80d8

change this back too

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100310 91177308-0d34-0410-b5e6-96231b3b80d8

check in what I tested. :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100309 91177308-0d34-0410-b5e6-96231b3b80d8

MMI is always available, rename O -> OS in printInlineAsm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100308 91177308-0d34-0410-b5e6-96231b3b80d8

fix an ugly wart in the MCInstPrinter api where the
raw_ostream to print an instruction to had to be specified
at MCInstPrinter construction time instead of being able
to pick at each call to printInstruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100307 91177308-0d34-0410-b5e6-96231b3b80d8

change a ton of code to not implicitly use the "O" raw_ostream
member of AsmPrinter.  Instead, pass it in explicitly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100306 91177308-0d34-0410-b5e6-96231b3b80d8

Reapply address space patch after fixing an issue in MemCopyOptimizer.
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100304 91177308-0d34-0410-b5e6-96231b3b80d8

asmstreamerize the .size directive for function bodies, force clients
of printOffset to pass in a stream to print to.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100296 91177308-0d34-0410-b5e6-96231b3b80d8

emit the cygwin stub thing through mcstreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100295 91177308-0d34-0410-b5e6-96231b3b80d8

add a twine form of MCStreamer::EmitRawText, and mc'ize
a few more things in AsmPrinter.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100294 91177308-0d34-0410-b5e6-96231b3b80d8

allow attaching comments to raw text.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100292 91177308-0d34-0410-b5e6-96231b3b80d8

start moving towards emitting inline asm statements with
EmitInlineAsm.  However, this attempt is foiled by operands
being emitted directly to "O" so I'll have to do some surgery
and finish MCizing the world.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100291 91177308-0d34-0410-b5e6-96231b3b80d8

add <cstdlib> header for abort() on linux builders.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100290 91177308-0d34-0410-b5e6-96231b3b80d8

add a new EmitInlineAsm function to asmprinter to handle inline asm.
If we have an MCAsmStreamer, we continue to emit asm textually,
otherwise we (currently) emit an error to errs and ignore it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100289 91177308-0d34-0410-b5e6-96231b3b80d8

mc'ize comment printing around file scope inline asm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100288 91177308-0d34-0410-b5e6-96231b3b80d8

remove some extraneous casts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100287 91177308-0d34-0410-b5e6-96231b3b80d8

require that the branch being controlled by the IV
exits the loop.  With this information we can guarantee
the iteration count of the loop is bounded by the
compare.  I think this xforms is finally safe now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100285 91177308-0d34-0410-b5e6-96231b3b80d8

add integer overflow check for the fp induction variable
checker.  Amusingly, we already had tests that we should
have rejects because they would be miscompiled in the
testsuite.

The remaining issue with this is that we don't check that
the branch causes us to exit the loop if it fails, so we
don't actually know if we remain in bounds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100284 91177308-0d34-0410-b5e6-96231b3b80d8

add a comment and fix some consistency issues, converting
to a signed vs unsigned value depending on the sign of the
constant fp means that we can't distinguish between a
truly negative number and a positive number so large the
32nd bit is set.  So, do don't this!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100283 91177308-0d34-0410-b5e6-96231b3b80d8

fix PR6761, a miscompilation due to the fp->int IV conversion
stuff.  More bugs remain though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100282 91177308-0d34-0410-b5e6-96231b3b80d8

convert to filecheck

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100281 91177308-0d34-0410-b5e6-96231b3b80d8

just eliminate the uitofp checks.  This code isn't doing
the required validity checks in the first place, and supporting
a condition large enough to require the 32'nd bit isn't worth it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100280 91177308-0d34-0410-b5e6-96231b3b80d8

rename feature test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100279 91177308-0d34-0410-b5e6-96231b3b80d8

actually just remove this, will move the real feature test here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100278 91177308-0d34-0410-b5e6-96231b3b80d8

rename test since it is a feature test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100277 91177308-0d34-0410-b5e6-96231b3b80d8

rename PH -> PN to be consistent with WeakPN and the rest
of llvm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100276 91177308-0d34-0410-b5e6-96231b3b80d8

improve comment and drop a dead check.  If PH had
no uses, it would have been deleted by
RecursivelyDeleteTriviallyDeadInstructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100275 91177308-0d34-0410-b5e6-96231b3b80d8

strength reduce a ridiculous use of APInt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100274 91177308-0d34-0410-b5e6-96231b3b80d8

rename stuff improve comment grammar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100273 91177308-0d34-0410-b5e6-96231b3b80d8

simplify some code and resolve a fixme.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100272 91177308-0d34-0410-b5e6-96231b3b80d8

There is no guarantee that the increment and the branch
are in the same block.  Insert the new increment in the
correct location.

Also, more cleanups.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100271 91177308-0d34-0410-b5e6-96231b3b80d8

first half of a pass through IndVarSimplify::HandleFloatingPointIV,
this cleans up a bunch of code and also fixes several crashes and
miscompiles.  More to come unfortunately, this optimization
is quite broken.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100270 91177308-0d34-0410-b5e6-96231b3b80d8

don't internalize available_externally functions, they are
really just declarations.  This is related to PR6524

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100269 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a warning in GCC about a pointless typedef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100268 91177308-0d34-0410-b5e6-96231b3b80d8

Add the new ARMDecodeEmitter to CMake build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100267 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of the middleman (ARMAlgorithm), which causes more trouble than the
abstraction it brings.  And also get rid of the atexit() handler, it does not
belong in the lib directory. :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100265 91177308-0d34-0410-b5e6-96231b3b80d8

Revert all my SSAUpdater patches.  The PHI placement algorithm is not correct
(what was I thinking?) and there's also a problem with LCSSA.  I'll try again
later with fixes.

--- Reverse-merging r100263 into '.':
U    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100177 into '.':
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100148 into '.':
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100147 into '.':
U    include/llvm/Transforms/Utils/SSAUpdater.h
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100131 into '.':
G    include/llvm/Transforms/Utils/SSAUpdater.h
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100130 into '.':
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100126 into '.':
G    include/llvm/Transforms/Utils/SSAUpdater.h
G    lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100050 into '.':
D    test/Transforms/GVN/2010-03-31-RedundantPHIs.ll
--- Reverse-merging r100047 into '.':
G    include/llvm/Transforms/Utils/SSAUpdater.h
G    lib/Transforms/Utils/SSAUpdater.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100264 91177308-0d34-0410-b5e6-96231b3b80d8

Add a DEBUG_TYPE for the SSAUpdater.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100263 91177308-0d34-0410-b5e6-96231b3b80d8

Code refactoring.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100262 91177308-0d34-0410-b5e6-96231b3b80d8

Add special case bitcode support for DebugLoc.  This avoids
having the bitcode writer materialize mdnodes for all the
debug location tuples when writing out the bc file and
stores the information in a more compact form.  For example,
the -O0 -g bc file for combine.c in 176.gcc shrinks from
739392 to 512096 bytes.

This concludes my planned short-term debug info work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100261 91177308-0d34-0410-b5e6-96231b3b80d8

Pass -shared to the linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100260 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100259 91177308-0d34-0410-b5e6-96231b3b80d8

Register ARMAlgorithm::DoCleanup() to be called on exit to free the memory
occuplied by the cached ARMAlgorithm objects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100258 91177308-0d34-0410-b5e6-96231b3b80d8

add a couple missing enum names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100257 91177308-0d34-0410-b5e6-96231b3b80d8

Rewrite aesimc handling.  It only takes a single input and has a single
dest.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100252 91177308-0d34-0410-b5e6-96231b3b80d8

Fix another build warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100251 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo aeskeygenassist -> aeskeygenassist128.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100250 91177308-0d34-0410-b5e6-96231b3b80d8

Ok, third time's the charm.  No changes from last time except the CMake
source addition.  Apparently the buildbots were wrong about failures.

---

Add some switches helpful for debugging:

-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation.  It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100249 91177308-0d34-0410-b5e6-96231b3b80d8

Move variable "Bits" declaration/definition into the DEBUG block where its usage
is expected.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100247 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed build warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100244 91177308-0d34-0410-b5e6-96231b3b80d8

Change from .../Support/DataTypes.h to .../System/DataTypes.h.
(Fix build failure)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100243 91177308-0d34-0410-b5e6-96231b3b80d8