rewrite CountNumNewlinesBetween to be in terms of StringRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82410 91177308-0d34-0410-b5e6-96231b3b80d8

this was not supposed to be committed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82409 91177308-0d34-0410-b5e6-96231b3b80d8

implement and document support for CHECK-NOT

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82408 91177308-0d34-0410-b5e6-96231b3b80d8

rewrite FileCheck in terms of StringRef instead of manual pointer pairs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82407 91177308-0d34-0410-b5e6-96231b3b80d8

improve memdep to eliminate bitcasts (and aliases, and noop geps)
early for the stated reasons: this allows it to find more
equivalences and depend less on code layout.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82404 91177308-0d34-0410-b5e6-96231b3b80d8

Move CoerceAvailableValueToLoadType earlier in GVN.cpp.  Hook it up
so that nonlocal and partially redundant loads can use it as well.
The testcase shows examples of craziness this can handle.  This triggers
*many* times in 176.gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82403 91177308-0d34-0410-b5e6-96231b3b80d8

change the interface to CoerceAvailableValueToLoadType to be
more generic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82402 91177308-0d34-0410-b5e6-96231b3b80d8

Teach 'make check-all' to build the site configuration for clang, if it is in tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82400 91177308-0d34-0410-b5e6-96231b3b80d8

enhance GVN to forward substitute a stored value to a load
(and load -> load) when the base pointers must alias but when
they are different types.  This occurs very very frequently in
176.gcc and other code that uses bitfields a lot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82399 91177308-0d34-0410-b5e6-96231b3b80d8

update an entry, delete an entry which has been fixed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82398 91177308-0d34-0410-b5e6-96231b3b80d8

tidy up

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82397 91177308-0d34-0410-b5e6-96231b3b80d8

--- Reverse-merging r82282 into '.':
U    lib/CodeGen/AsmPrinter/DwarfException.cpp
U    lib/CodeGen/AsmPrinter/DwarfException.h

--- Reverse-merging r82274 into '.':
U    lib/Target/TargetLoweringObjectFile.cpp
G    lib/CodeGen/AsmPrinter/DwarfException.cpp

These revisions were breaking everything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82396 91177308-0d34-0410-b5e6-96231b3b80d8

remove a temporary hack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82395 91177308-0d34-0410-b5e6-96231b3b80d8

rename X86ATTAsmPrinter.cpp -> X86AsmPrinter.cpp likewise the .h file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82394 91177308-0d34-0410-b5e6-96231b3b80d8

move target registry stuff to X86ATTAsmPrinter.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82393 91177308-0d34-0410-b5e6-96231b3b80d8

simplify this now that createX86CodePrinterPass is trivial

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82392 91177308-0d34-0410-b5e6-96231b3b80d8

rename X86ATTAsmPrinter class -> X86AsmPrinter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82391 91177308-0d34-0410-b5e6-96231b3b80d8

remove the asmstring, it is now dead.  Improve comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82390 91177308-0d34-0410-b5e6-96231b3b80d8

Peer through zext and sext to eliminate them when it is safe to do so.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82389 91177308-0d34-0410-b5e6-96231b3b80d8

kill off printPICLabel now, it's specialness is handled by
the MachineInstr ->MCInst lowering process, not in the
asmprinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82388 91177308-0d34-0410-b5e6-96231b3b80d8

delete X86IntelAsmPrinter!  Now -x86-asm-syntax just switches
the instruction syntax, not the entire asmprinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82387 91177308-0d34-0410-b5e6-96231b3b80d8

Fold 'icmp eq (icmp), true' into an xor(icmp).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82386 91177308-0d34-0410-b5e6-96231b3b80d8

Add an intel syntax MCInstPrinter implementation.  You can now
transcode from AT&T to intel syntax with "llvm-mc foo.s -output-asm-variant=1"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82385 91177308-0d34-0410-b5e6-96231b3b80d8

tidy up

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82384 91177308-0d34-0410-b5e6-96231b3b80d8

Rewrite this check so that it checks what it's supposed to and doesn't use
CHECK-NOT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82383 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate a use of strtoul.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82382 91177308-0d34-0410-b5e6-96231b3b80d8

split random COFF asmprinter state out to X86COFFMachineModuleInfo.h.
Make dllexport directives come out in determinstic order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82381 91177308-0d34-0410-b5e6-96231b3b80d8

Correct the comment; this applies to fcmp too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82380 91177308-0d34-0410-b5e6-96231b3b80d8

Remove tab, again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82379 91177308-0d34-0410-b5e6-96231b3b80d8

Teach the constant folder how to not a cmpinst.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82378 91177308-0d34-0410-b5e6-96231b3b80d8

smallvectorize getExtraOptionNames

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82377 91177308-0d34-0410-b5e6-96231b3b80d8

add a helper method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82376 91177308-0d34-0410-b5e6-96231b3b80d8

minor cleanups.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82375 91177308-0d34-0410-b5e6-96231b3b80d8

Add 'make check-all', which runs the LLVM tests along with the clang tests if
its in the standard location.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82374 91177308-0d34-0410-b5e6-96231b3b80d8

Follow googletest logic for suppressing warnings in unittests/UnitTestMain.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82373 91177308-0d34-0410-b5e6-96231b3b80d8

strength reduce further StringRef-> const char*, saving another 620 bytes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82372 91177308-0d34-0410-b5e6-96231b3b80d8

Try turning icmp(bitcast(x), bitcast(y)) into icmp(bitcast(bitcast(x)), y) in
the hopes that the two bitcasts will merge.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82371 91177308-0d34-0410-b5e6-96231b3b80d8

switch an std::string to StringRef, shaving 400 bytes off CommandLine.o

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82370 91177308-0d34-0410-b5e6-96231b3b80d8

Remove tabs I added.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82369 91177308-0d34-0410-b5e6-96231b3b80d8

the switch from std::map -> StringMap caused --help output to be in
non-sorted order, restore the sort.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82368 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate the duplicate detection loop, moving it into the loop that populates the Opts vector in the first place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82367 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate a masochistic "algorithm" loop, shrinking CommandLine.o from 71524->70700 bytes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82366 91177308-0d34-0410-b5e6-96231b3b80d8

don't use count + insert, just do insert + failure.  Also, instead of deleting from
the middle of a vector, swap the last element in and pop_back.  Also saves 330 bytes :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82365 91177308-0d34-0410-b5e6-96231b3b80d8

switch to SmallPtrSet instead of std::set, saving 1K from the
release-asserts .o file (72900->71856).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82364 91177308-0d34-0410-b5e6-96231b3b80d8

change an std::sort to an array_pod_sort call, shrinking CommandLine.o by 9%.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82363 91177308-0d34-0410-b5e6-96231b3b80d8

Several changes together in a murky mess:
1. Change some "\n" -> '\n'.
2. eliminte some std::string's by using raw_ostream::indent.
3. move a bunch of code out of the main arg parser routine into
   a new static HandlePrefixedOrGroupedOption function.
4. Greatly simplify the implementation of getOptionPred, and make
   it avoid splitting prefix options at = when that doesn't match
   a non-prefix option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82362 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up the usage of evaluateICmpRelation's return value.
Add another line to the ConstantExprFold test to demonstrate the GEPs may not
wrap around in either the signed or unsigned senses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82361 91177308-0d34-0410-b5e6-96231b3b80d8

Fix refacto, this code was expecting to stride past the argument prefix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82360 91177308-0d34-0410-b5e6-96231b3b80d8

Strip trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82359 91177308-0d34-0410-b5e6-96231b3b80d8

A few more tabs -> spaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82358 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dead store by taking a guess at what Chris meant. I wasn't able to
design a testcase that would tickle this behaviour.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82357 91177308-0d34-0410-b5e6-96231b3b80d8

Still one more thing wrong here...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82356 91177308-0d34-0410-b5e6-96231b3b80d8

Tabs -> spaces, and remove trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82355 91177308-0d34-0410-b5e6-96231b3b80d8

Here's fun! It turns out that these filter functions can be internal. If they're
internal, they shouldn't use the indirect pointer stuff. In the case of
throw_rethrow_test, it was marked as 'internal' and calculated its own offset to
its contents.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82354 91177308-0d34-0410-b5e6-96231b3b80d8

Delete dead code. sext and zext can not turn integers into pointers. Further,
the optimization described in the comment is only valid with target data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82353 91177308-0d34-0410-b5e6-96231b3b80d8

convert argname to StringRef, simplifying LookupOption.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82352 91177308-0d34-0410-b5e6-96231b3b80d8

convert 'Value' to StringRef which makes it easier to
maintain the "null is unspecified, empty is empty" semantics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82351 91177308-0d34-0410-b5e6-96231b3b80d8

Change CommaSeparated processing to do it with StringRef instead of temporary std::strings.
This requires StringRef'izing ProvideOption which I also did.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82350 91177308-0d34-0410-b5e6-96231b3b80d8

Value* were never meant to be const. Removing constness from the constant
folder removes a lot of const_casting and requires no changes to clang or
llvm-gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82349 91177308-0d34-0410-b5e6-96231b3b80d8

rewrite ParseCStringVector in terms of stringref.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82348 91177308-0d34-0410-b5e6-96231b3b80d8

move a couple non-trivial methods out of line, add new
find_first_of/find_first_of methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82347 91177308-0d34-0410-b5e6-96231b3b80d8

coding style cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82346 91177308-0d34-0410-b5e6-96231b3b80d8

convert a bunch more stuff to use StringRef.  The ArgName arguments are now
stringref because they may not be nul terminated.  For options like -Lfoo
this now avoids a O(n)  temporary std::strings where N is the length of
the string after -L.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82345 91177308-0d34-0410-b5e6-96231b3b80d8

add size_t and a version of rfind that allows specification of where
to scan from.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82343 91177308-0d34-0410-b5e6-96231b3b80d8

When computing live intervals for earlyclobber operands,
we pushed the beginning of the interval back 1, so the
interval would overlap with inputs that die.  We were
also pushing the end of the interval back 1, though,
which means the earlyclobber didn't overlap with other
output operands.  Don't do this.  PR 4964.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82342 91177308-0d34-0410-b5e6-96231b3b80d8

avoid a bunch of malloc thrashing for PositinoalVals by eliminating
a std::vector and a bunch of std::string temporaries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82341 91177308-0d34-0410-b5e6-96231b3b80d8

Teach the constant folder how to handle a few simple i1 cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82340 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid some temporary strings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82339 91177308-0d34-0410-b5e6-96231b3b80d8

add some more overloads of StringRef::getAsInteger for
common and useful integer types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82338 91177308-0d34-0410-b5e6-96231b3b80d8

add a simple c_str() method to SmallString.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82337 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r82274. It's causing failures in the CINT2006 benchmarks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82336 91177308-0d34-0410-b5e6-96231b3b80d8

Prefer super class constructor to explicit initialization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82335 91177308-0d34-0410-b5e6-96231b3b80d8

Tabs -> spaces (really?)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82334 91177308-0d34-0410-b5e6-96231b3b80d8

Fix indentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82333 91177308-0d34-0410-b5e6-96231b3b80d8

Strip trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82332 91177308-0d34-0410-b5e6-96231b3b80d8

RHS of assignment should be const reference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82331 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the default value for ConstantStruct::get's isPacked parameter and
update the code which was broken by this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82327 91177308-0d34-0410-b5e6-96231b3b80d8

provide a "strtoull" operation that works on StringRef's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82322 91177308-0d34-0410-b5e6-96231b3b80d8

Add a comment explaining why you would ever want to do this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82319 91177308-0d34-0410-b5e6-96231b3b80d8

convert a bunch of std::strings to use StringRef.  This should eliminate
a massive number of temporary strings created when parsing a command line.
More still left to eliminate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82318 91177308-0d34-0410-b5e6-96231b3b80d8

Lett users of sparse propagation do their own thing with phi nodes if they want
to. This can be combined with LCSSA or SSI form to store more information on a
PHINode than can be computed by looking at its incoming values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82317 91177308-0d34-0410-b5e6-96231b3b80d8

The flag "--dot-cfg-only" is at the moment equivalent to the flag "--dot-cfg".
It prints the content of all bbs, instead of printing empty bbs to make the
CFG more readable.  Fix this.  Patch by Tobias Grosser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82315 91177308-0d34-0410-b5e6-96231b3b80d8

Fix funky comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82314 91177308-0d34-0410-b5e6-96231b3b80d8

Update comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82313 91177308-0d34-0410-b5e6-96231b3b80d8

Try to speed up the slowest parts of the CommandLine library

- Replace std::map<std::string with StringMap
- Eliminate unnecessary std::string copies
- ~10% speed-up for clang's testsuite on my machine (debug build)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82312 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82311 91177308-0d34-0410-b5e6-96231b3b80d8

Enhance transform passes so that they apply the same tranforms to malloc calls as to MallocInst.

Reviewed by Dan Gohman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82300 91177308-0d34-0410-b5e6-96231b3b80d8

remove an extraneous mem2reg pass early in the pipe.  Since
this is run after the 'standard function passes', SRoA was
recently run.  This saves a domfrontier construction. Thanks
to Eli for noticing this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82291 91177308-0d34-0410-b5e6-96231b3b80d8

reduce indentation by using an early exit, and add a comment,
no functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82290 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a comment typo and some whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82285 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo in an assertion message.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82284 91177308-0d34-0410-b5e6-96231b3b80d8

Factor out label difference creation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82282 91177308-0d34-0410-b5e6-96231b3b80d8

Enhance analysis passes so that they apply the same analysis to malloc calls as to MallocInst.

Reviewed by Eli Friedman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82281 91177308-0d34-0410-b5e6-96231b3b80d8

Delete the label names from this test to make it less fragile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82276 91177308-0d34-0410-b5e6-96231b3b80d8

It's inefficient to have place the exception tables (which contain the LSDA)
into the __DATA section. At launch time, dyld has to update most of the section
to fix up the type info pointers. It's better to place it into the __TEXT
section and use pc-rel indirect pointer encodings. Similar to the personality
routine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82274 91177308-0d34-0410-b5e6-96231b3b80d8

Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes.
Not functionality change yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82273 91177308-0d34-0410-b5e6-96231b3b80d8

Fix cmake build, which has a different -I that
causes the "../foo" to not find the file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82270 91177308-0d34-0410-b5e6-96231b3b80d8

Make a new X8632_MachoTargetObjectFile TLOF implementation whose
getSymbolForDwarfGlobalReference is smart enough to know that it
needs to register the stub it references with MachineModuleInfoMachO,
so that it gets emitted at the end of the file.

Move stub emission from X86ATTAsmPrinter::doFinalization to the
new X86ATTAsmPrinter::EmitEndOfAsmFile asmprinter hook.  The important
thing here is that EmitEndOfAsmFile is called *after* the ehframes are
emitted, so we get all the stubs.

This allows us to remove a gross hack from the asmprinter where it would
"just know" that it needed to output stubs for personality functions.
Now this is all driven from a consistent interface.

The testcase change is just reordering the expected output now that the
stubs come out after the ehframe instead of before.

This also unblocks other changes that Bill wants to make.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82269 91177308-0d34-0410-b5e6-96231b3b80d8

add a new hook to allow targets to splat stuff at the end of the file.
Overriding doFinalization is pretty lame.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82268 91177308-0d34-0410-b5e6-96231b3b80d8

Model the carry bit on ppc32.  Without this we could
move a SUBFC (etc.) below the SUBFE (etc.) that consumed
the carry bit.  Add missing ADDIC8, noticed along the way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82266 91177308-0d34-0410-b5e6-96231b3b80d8