Fix a bug in the folding of binary operators to undef.
Thanks to Lauro for spotting this!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38491 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure to keep symbols for profile build.

Patch by Benoit Boissinot. Thanks, Benoit!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38490 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the folding of undef in several binary operators to recognize
undef in either the left or right operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38489 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify the handling of the --*flags options. The makefile already gets it
right so there is no need to duplicate logic, just use the values the makefile
provides.

Eliminate some redundnt -D options from the output.

Fix the help output so it fits on 80 cols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38488 91177308-0d34-0410-b5e6-96231b3b80d8

Makesure the -cppflags also uses the CPP.BaseFlags as the CPP.Defines only
contains some of the defines but not all CPP flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38487 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure that preprocessor symbols like _DEBUG, NDEBUG, and _GLIBC_DEBUG are
put into the CPP.Defines variable. Seems the convention was corrupted with
various changes made. It is important to get command line parameters into the
right variable because things like llvm-config and sub-makefiles depend on it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38486 91177308-0d34-0410-b5e6-96231b3b80d8

When a node value is only used by a CopyToReg, use the user's dest. This should not be restricted to nodes that produce only a single value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38485 91177308-0d34-0410-b5e6-96231b3b80d8

Move DenseMapKeyInfo<SDOperand> from LegalizeDAG.cpp to SelectionDAGNodes.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38484 91177308-0d34-0410-b5e6-96231b3b80d8

Update the ValueRanges interface to use value numbers instead of Value*s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38483 91177308-0d34-0410-b5e6-96231b3b80d8

Evidently my earlier fix did not go far enough.  When resizing a zero-sized
BitVector, make sure to set or clear ALL of the bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38481 91177308-0d34-0410-b5e6-96231b3b80d8

Move some key maps from std::map to DenseMap.  This improves the time to optimize Anton's testcase from 17.5s
to 15.7s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38480 91177308-0d34-0410-b5e6-96231b3b80d8

Use a cheaper test, delaying calling find_leader() until we know that it's necessary.  This improves
the time to optimize Anton's testcase from 21.1s to 17.6s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38479 91177308-0d34-0410-b5e6-96231b3b80d8

Define non-intrinsic instructions for vector min, max, sqrt, rsqrt, and rcp,
in addition to the intrinsic forms. Add spill-folding entries for these new
instructions, and for the scalar min and max instrinsic instructions which
were missing. And add some preliminary ISelLowering code for using the new
non-intrinsic vector sqrt instruction, and fneg and fabs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38478 91177308-0d34-0410-b5e6-96231b3b80d8

Add an assertion if find_leader fails.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38477 91177308-0d34-0410-b5e6-96231b3b80d8

When resizing a BitVector with size 0, be sure to clear the low word before using it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38476 91177308-0d34-0410-b5e6-96231b3b80d8

Take advantage of the new fast SmallPtrSet assignment operator when propagating AVAIL_OUT sets.
This reduces the time to optimize Anton's testcase from 31.2s to 21.s!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38475 91177308-0d34-0410-b5e6-96231b3b80d8

Make the assignment operator for SmallPtrSet much faster for normal cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38474 91177308-0d34-0410-b5e6-96231b3b80d8

Preserve volatililty and alignment information when lowering or
simplifying loads and stores.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38473 91177308-0d34-0410-b5e6-96231b3b80d8

Expose struct size threhold to allow users to tweak their own setting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38472 91177308-0d34-0410-b5e6-96231b3b80d8

Change getCopyToParts and getCopyFromParts to always use target-endian
register ordering, for both physical and virtual registers. Update the PPC
target lowering for calls to expect registers for the call result to
already be in target order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38471 91177308-0d34-0410-b5e6-96231b3b80d8

Make the assignment operator for SmallPtrSet return a reference, and fix a long-standing bug in the copy
ctor while I'm at it.

Thanks to Chris Lattner for help with this patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38470 91177308-0d34-0410-b5e6-96231b3b80d8

Fix memory leak.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38469 91177308-0d34-0410-b5e6-96231b3b80d8

Initialize the IndexedModeActions array with memset before
updating it with calls to setIndexedLoadAction/setIndexedStoreAction,
which only update a few bits at a time. This avoids ostensible
undefined behavior of operationg on values which may be
trap-representations, and as a practical matter fixes errors from
valgrind, which doesn't track uninitialized memory with bit
granularity.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38468 91177308-0d34-0410-b5e6-96231b3b80d8

Fix an error in the assignment operator that was causing an infinite loop in GVNPRE.cpp.
Patch by Chis Lattner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38467 91177308-0d34-0410-b5e6-96231b3b80d8

force a cpu without SSE

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38466 91177308-0d34-0410-b5e6-96231b3b80d8

allow this to work on ppc-darwin

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38465 91177308-0d34-0410-b5e6-96231b3b80d8

remove this bogus t-t

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38464 91177308-0d34-0410-b5e6-96231b3b80d8

The various "getModuleMatchQuality" implementations should return
zero if they see a target triple they don't understand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38463 91177308-0d34-0410-b5e6-96231b3b80d8

add target triple to fix PR1546

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38462 91177308-0d34-0410-b5e6-96231b3b80d8

work around an aparent gcc name resolution bug by
detemplatizing this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38461 91177308-0d34-0410-b5e6-96231b3b80d8

implement operator= for smallptrset

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38460 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38459 91177308-0d34-0410-b5e6-96231b3b80d8

Fix this warning:

DAGCombiner.cpp: In member function 'llvm::SDOperand<unnamed>::DAGCombiner::visitOR(llvm::SDNode*)':
DAGCombiner.cpp:1608: warning: passing negative value '-0x00000000000000001' for argument 1 to 'llvm::SDOperand llvm::SelectionDAG::getConstant(uint64_t, llvm::MVT::ValueType, bool)'

oiy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38458 91177308-0d34-0410-b5e6-96231b3b80d8

Move the APInt form of SCEVUnknown::getIntegerSCEV to SCEVConstant::get, and
use SCEVConstant::get instead of SCEVUnknown::get when constructing a SCEV
for a ConstantInt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38457 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38456 91177308-0d34-0410-b5e6-96231b3b80d8

Add explicit triples to these tests so that llc behaves as expected on
non-Apple hosts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38455 91177308-0d34-0410-b5e6-96231b3b80d8

missed this one

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38454 91177308-0d34-0410-b5e6-96231b3b80d8

fix typos

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38453 91177308-0d34-0410-b5e6-96231b3b80d8

eliminated all references to 'bytecode' from .pod files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38452 91177308-0d34-0410-b5e6-96231b3b80d8

Update the svn:ignore property to eliminate all files
that start with svn-commit. because there can be several of them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38451 91177308-0d34-0410-b5e6-96231b3b80d8

Add more svn:ignore property values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38450 91177308-0d34-0410-b5e6-96231b3b80d8

More svn:ignore property restorations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38449 91177308-0d34-0410-b5e6-96231b3b80d8

Restore properties I accidentally deleted with the last commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38448 91177308-0d34-0410-b5e6-96231b3b80d8

Set the svn:ignore property to ignore the Debug, Release, and
Release-Asserts sub-directories in all directories that build code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38447 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the cvsupdate script. Its no longer useful in the face of
tools such as svn info and svn status.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38446 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38444 91177308-0d34-0410-b5e6-96231b3b80d8

cvs -> svn

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38443 91177308-0d34-0410-b5e6-96231b3b80d8

Subversionify the documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38442 91177308-0d34-0410-b5e6-96231b3b80d8

Improve a hotspot that was making build_sets() slower by calling lookup() too
often.  This improves Anton's testcase from 36s to 32s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38441 91177308-0d34-0410-b5e6-96231b3b80d8

Subversionify the script.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38440 91177308-0d34-0410-b5e6-96231b3b80d8

Start using a set representation that remembers the set of value numbers represented
in the set.  For the moment, this results in a slight performance decrease, but
it lays the groundwork for future improvements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38439 91177308-0d34-0410-b5e6-96231b3b80d8

Bytecode -> Bitcode

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38438 91177308-0d34-0410-b5e6-96231b3b80d8

Minor language change upgrader -> upgrade tool

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38437 91177308-0d34-0410-b5e6-96231b3b80d8

This dir does not appear under /docs anymore but under /cmds so use an
absolute path to the llvm.css file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38436 91177308-0d34-0410-b5e6-96231b3b80d8

Links for commands are now generated into /cmds/ URL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38435 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some minor typos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38434 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some typos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38433 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38432 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38431 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some minor typos, again to test the auto-update of the web site.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38430 91177308-0d34-0410-b5e6-96231b3b80d8

Remove an unneeded space, mostly to verify that auto-update of the
documentation is working.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38429 91177308-0d34-0410-b5e6-96231b3b80d8

Install things needed by llvm-top to allow successful building
of llvm from that level.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38423 91177308-0d34-0410-b5e6-96231b3b80d8

LLVM needs ModuleInfo.txt as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38422 91177308-0d34-0410-b5e6-96231b3b80d8

Fix an error where ANTIC_OUT was ending up with more than one expression of
the same value number.  This fixes an infinite loop on 444.namd.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37967 91177308-0d34-0410-b5e6-96231b3b80d8

Back out Devang's fix for PR1320 because it causes PR1542.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37966 91177308-0d34-0410-b5e6-96231b3b80d8

No need for ccop anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37965 91177308-0d34-0410-b5e6-96231b3b80d8

Teach if-conversion about instructions that were already predicated, e.g. conditional move.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37964 91177308-0d34-0410-b5e6-96231b3b80d8

ImmutablePredicateOperand is no more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37963 91177308-0d34-0410-b5e6-96231b3b80d8

Incorrect check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37962 91177308-0d34-0410-b5e6-96231b3b80d8

Do away with ImmutablePredicateOperand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37961 91177308-0d34-0410-b5e6-96231b3b80d8

isUnpredicatedTerminator should treat conditional branches as unpredicated terminator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37960 91177308-0d34-0410-b5e6-96231b3b80d8

Do away with ImmutablePredicateOperand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37959 91177308-0d34-0410-b5e6-96231b3b80d8

A first stab at memory dependence analysis.  This is an interface on top of
alias analysis, adding caching and lazy computation of queries.  This will
be used in planned improvements to memory access optimizations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37958 91177308-0d34-0410-b5e6-96231b3b80d8

Add some accessors to improve consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37957 91177308-0d34-0410-b5e6-96231b3b80d8

first pass of nomenclature changes in .html files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37956 91177308-0d34-0410-b5e6-96231b3b80d8

These rountines are now available as part of basic block utilities.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37955 91177308-0d34-0410-b5e6-96231b3b80d8

Request DominanceFrontiner in advance.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37954 91177308-0d34-0410-b5e6-96231b3b80d8

Preserve various analysis info.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37953 91177308-0d34-0410-b5e6-96231b3b80d8

Add SplitEdge and SplitBlock utility routines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37952 91177308-0d34-0410-b5e6-96231b3b80d8

Be more aggressive in the heuristic.  This mostly exposes more opportunities
for the GVN part of GVNPRE to apply.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37951 91177308-0d34-0410-b5e6-96231b3b80d8

finishing touches of bytecode -> bitcode changes. also unbreak Windows

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37950 91177308-0d34-0410-b5e6-96231b3b80d8

Achieve what the incorrect test was trying to do by simply requiring that all
critical edges be split before we begin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37949 91177308-0d34-0410-b5e6-96231b3b80d8

Remove an incorrect check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37948 91177308-0d34-0410-b5e6-96231b3b80d8

The exception handling intrinsics return values,
so must be lowered to a value, not nothing at all.
Subtle point: I made eh_selector return 0 and
eh_typeid_for return 1.  This means that only
cleanups (destructors) will be run as the exception
unwinds [if eh_typeid_for returned 0 then it would
be as if the first catch always matched, and the
corresponding handler would be run], which is
probably want you want in the CBE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37947 91177308-0d34-0410-b5e6-96231b3b80d8

Remove redundant declarations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37946 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate residual cruft related to recognizing bytecode
files.
bitcode files are the only LLVM format left.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37945 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a comment so that the element numbering match the actual element
operand numbering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37944 91177308-0d34-0410-b5e6-96231b3b80d8

Add an explicit triple to the big-endian tests so that the assembly
output format is always consistent with what the greps are looking for.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37943 91177308-0d34-0410-b5e6-96231b3b80d8

Indexes into the list of filter ids cannot be output
directly: they need to be turned into byte offsets
(often the same, but may not be if there are many
type infos).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37942 91177308-0d34-0410-b5e6-96231b3b80d8

Test that byte offsets are used to index into the list
of filter ids, and not simply the id index.  Testing
this requires at least 128 type infos!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37941 91177308-0d34-0410-b5e6-96231b3b80d8

Add the byval attribute

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37940 91177308-0d34-0410-b5e6-96231b3b80d8

Solaris 2.x does not have RLIMIT_RSS, check for this symbol (analog NetBSD below), should subsume Cygwin

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37939 91177308-0d34-0410-b5e6-96231b3b80d8

Remove propagateEHRegister in favour of a more limited
fix, that is adequate while PR1508 remains unresolved.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37938 91177308-0d34-0410-b5e6-96231b3b80d8

Remove ExtractGlobalVariable - use StripPointerCasts
instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37937 91177308-0d34-0410-b5e6-96231b3b80d8

Correct a typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37936 91177308-0d34-0410-b5e6-96231b3b80d8

Workaround of getCopyToRegs and getCopyFromRegs bugs for big-endian machines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37935 91177308-0d34-0410-b5e6-96231b3b80d8

Change CalculateHeights and CalculateDepths to be non-recursive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37934 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor code to add initial support for OptionalDefOperand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37933 91177308-0d34-0410-b5e6-96231b3b80d8

Print the s bit if the instruction is toggled to its CPSR setting form.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37932 91177308-0d34-0410-b5e6-96231b3b80d8

PredicateDefOperand -> OptionalDefOperand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37931 91177308-0d34-0410-b5e6-96231b3b80d8