Fix frame index elimination to correctly handle thumb-2 addressing modes that don't allow negative offsets. During frame elimination convert *i12 opcode to a *i8 when necessary due to a negative offset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76883 91177308-0d34-0410-b5e6-96231b3b80d8

FileCheck'ize and expand LDA testcases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76880 91177308-0d34-0410-b5e6-96231b3b80d8

emit simple node was using different labels for fields than the rest of the graph writter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76879 91177308-0d34-0410-b5e6-96231b3b80d8

Cache dependence computation using FoldingSet.

This introduces an LDA-internal DependencePair class. The intention is,
that this is a place where dependence testers can store various results
such as SCEVs describing conflicting iterations, breaking conditions,
distance/direction vectors, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76877 91177308-0d34-0410-b5e6-96231b3b80d8

80 col violation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76872 91177308-0d34-0410-b5e6-96231b3b80d8

enhance DepthFirstIterator to support more robust operations in the face
of code mutating the graph while it is being traversed.  Patch by
Olaf Krzikalla!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76869 91177308-0d34-0410-b5e6-96231b3b80d8

testcase for PR4590

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76868 91177308-0d34-0410-b5e6-96231b3b80d8

refactor a blob of code out to a new 'FoldOrOfFCmps' function and
simplify it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76866 91177308-0d34-0410-b5e6-96231b3b80d8

For real this time: PHI Def & Kill tracking added to PHIElimination.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76865 91177308-0d34-0410-b5e6-96231b3b80d8

merge vector-casts-0.ll into vector-casts.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76864 91177308-0d34-0410-b5e6-96231b3b80d8

Make some existing optimizations that would only trigger on scalars
also apply to vectors.  This allows us to compile this:

#include <emmintrin.h>
__m128i a(__m128 a, __m128 b) { return a==a & b==b; }
__m128i b(__m128 a, __m128 b) { return a!=a | b!=b; }

to:

_a:
cmpordps %xmm1, %xmm0
ret
_b:
cmpunordps %xmm1, %xmm0
ret

with clang instead of to a ton of horrible code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76863 91177308-0d34-0410-b5e6-96231b3b80d8

convert a test to filecheck format.  This fixes an endemic problem
with negative tests: this test wasn't checking what it thought it was
because it was grepping .bc, not .ll.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76861 91177308-0d34-0410-b5e6-96231b3b80d8

rename test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76860 91177308-0d34-0410-b5e6-96231b3b80d8

refactor a bunch of code out into a helper function,
no functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76859 91177308-0d34-0410-b5e6-96231b3b80d8

remove a really old and dead header

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76855 91177308-0d34-0410-b5e6-96231b3b80d8

merge one more sse41 test into sse41.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76853 91177308-0d34-0410-b5e6-96231b3b80d8

merge another sse41 test into sse41.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76852 91177308-0d34-0410-b5e6-96231b3b80d8

merge  sse41-pmovx.ll into sse41.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76850 91177308-0d34-0410-b5e6-96231b3b80d8

Added PHI Def & Kill tracking to PHIElimination pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76849 91177308-0d34-0410-b5e6-96231b3b80d8

change a test to run in filecheck style.  Rename it to be a general
dumping ground of various SSE4.1 tests, since filecheck can reasonably
handle them all in one file.  Generalize it to check x86-64 stuff as
well since it has a different ABI (a convenient way to test both the
reg and mem forms of these instructions).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76848 91177308-0d34-0410-b5e6-96231b3b80d8

Support insertps via the intrinsic and add a couple of simple
testcases to make sure it's being generated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76843 91177308-0d34-0410-b5e6-96231b3b80d8

Do not call getMangledName on Intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76842 91177308-0d34-0410-b5e6-96231b3b80d8

MDString
- Rename member function size(). New name is length().
- Store string beginning and length. Earlier it used to store string end.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76841 91177308-0d34-0410-b5e6-96231b3b80d8

Add test for pinsrd and pinsrb instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76840 91177308-0d34-0410-b5e6-96231b3b80d8

Minor cosmetics: indentation, formatting, naming.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76839 91177308-0d34-0410-b5e6-96231b3b80d8

Reverting r76825 and r76828, since they caused clang runtime errors and some build failure involving memset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76838 91177308-0d34-0410-b5e6-96231b3b80d8

add header for 'memset'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76837 91177308-0d34-0410-b5e6-96231b3b80d8

Silence "uninitialized use" warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76836 91177308-0d34-0410-b5e6-96231b3b80d8

Hide constructors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76835 91177308-0d34-0410-b5e6-96231b3b80d8

Derive MDNode from MetadataBase instead of Constant. Emit MDNodes into METADATA_BLOCK in bitcode file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76834 91177308-0d34-0410-b5e6-96231b3b80d8

Fix error message for correct opcode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76829 91177308-0d34-0410-b5e6-96231b3b80d8

Make the JIT code emitter properly retry and ask for more memory when it runs
out of memory, and also make the default memory manager allocate more memory
when it runs out.

Also, switch function stubs and global data over to using the BumpPtrAllocator.

This makes it so the JIT no longer mmaps (or the equivalent on Windows) 16 MB
of memory, and instead allocates in 512K slabs.  I suspect this size could go
lower, especially on embedded platforms, now that more slabs can be allocated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76828 91177308-0d34-0410-b5e6-96231b3b80d8

Parameterize the BumpPtrAllocator over a slab allocator.  It defaults to using
malloc, so there should be no functional changes to other code.

These changes are necessary since I have plans to use this allocator in the JIT
memory manager, and it needs a special allocator.

I also added some tests which helped me pinpoint some bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76825 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r75663 (and r76805), as it is causing regressions on powerpc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76823 91177308-0d34-0410-b5e6-96231b3b80d8

remove SectionFlags::Small: it is only used on Xcore, and we'll find
a better solution for it in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76818 91177308-0d34-0410-b5e6-96231b3b80d8

x86 isel tweak: use lea (%reg,%reg) instead of lea (,%reg,2).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76817 91177308-0d34-0410-b5e6-96231b3b80d8

Add new keywords to the vim syntax highlighting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76812 91177308-0d34-0410-b5e6-96231b3b80d8

Add new optimization keywords to the polygen grammar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76811 91177308-0d34-0410-b5e6-96231b3b80d8

Rename the new unsigned and signed keywords to nuw and nsw,
which stand for no-unsigned-wrap and no-signed-wrap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76810 91177308-0d34-0410-b5e6-96231b3b80d8

Reorder if-else branches as suggested by Bill.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76808 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo in addrmode definition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76806 91177308-0d34-0410-b5e6-96231b3b80d8

Add -march=ppc32 lines so that this test doesn't ever default to ppc64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76805 91177308-0d34-0410-b5e6-96231b3b80d8

Use getTargetConstant instead of getConstant since it's meant as an constant operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76803 91177308-0d34-0410-b5e6-96231b3b80d8

Make the grep line in this test more specific, to avoid
unintended matches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76802 91177308-0d34-0410-b5e6-96231b3b80d8

Constify the key in Mi2IndexMap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76801 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore undef uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76799 91177308-0d34-0410-b5e6-96231b3b80d8

Switch some clients to Value::getName(), and other getName() user
simplification.
 - NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76789 91177308-0d34-0410-b5e6-96231b3b80d8

Fix indentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76787 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify some uses of Value::getName()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76786 91177308-0d34-0410-b5e6-96231b3b80d8

Define npos in a way that should make MSVC happier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76785 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unnecessary store to temporary std::string.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76782 91177308-0d34-0410-b5e6-96231b3b80d8

Put comment printing under asm-verbose.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76780 91177308-0d34-0410-b5e6-96231b3b80d8

Fix indentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76778 91177308-0d34-0410-b5e6-96231b3b80d8

Make some changes suggested by Bill and Evan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76775 91177308-0d34-0410-b5e6-96231b3b80d8

Fix thinko.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76769 91177308-0d34-0410-b5e6-96231b3b80d8

Added -b option to override the default bitcode output file name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76768 91177308-0d34-0410-b5e6-96231b3b80d8

Use isa<> instead of dyn_cast<>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76767 91177308-0d34-0410-b5e6-96231b3b80d8

Add replaceAllUsesWith() to FE replace debug info constructs while building complex types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76765 91177308-0d34-0410-b5e6-96231b3b80d8

Do not print "metadata" twice while printing MDString.
This fixes unittest failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76764 91177308-0d34-0410-b5e6-96231b3b80d8

Remove empty test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76763 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate a redudant check Eli pointed out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76762 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed build warning. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76761 91177308-0d34-0410-b5e6-96231b3b80d8

Introduce MetadataBase, a base class for MDString and MDNode.
Derive MDString directly from MetadataBase.
Introduce new bitcode block to hold metadata.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76759 91177308-0d34-0410-b5e6-96231b3b80d8

Support writing a StringRef to a raw_ostream directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76754 91177308-0d34-0410-b5e6-96231b3b80d8

fix some wording problems Daniel pointed out, make a example actually real.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76751 91177308-0d34-0410-b5e6-96231b3b80d8

doxygenify

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76750 91177308-0d34-0410-b5e6-96231b3b80d8

fix typo noticed by Duncan

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76747 91177308-0d34-0410-b5e6-96231b3b80d8

cast signed APInt constructor params to uint64_t to suppress signedness warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76744 91177308-0d34-0410-b5e6-96231b3b80d8

Add newline at end of file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76736 91177308-0d34-0410-b5e6-96231b3b80d8

Thread local globals don't require special handling by the linker and so can
be placed in the standard data / bss sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76735 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a comment that was copy+pasted from the wrong place,
there is no MachineFunction here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76734 91177308-0d34-0410-b5e6-96231b3b80d8

Revert commit 76707, it was breaking the llvm-gcc build
on linux platforms.  The binutils assembler does not
recognize the "s" flag, see for example
http://sourceware.org/binutils/docs/as/Section.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76733 91177308-0d34-0410-b5e6-96231b3b80d8

Don't give a massive inlining cost bonus to available_externally
functions with a single use; eliminating the single use may eliminate
the function from the current module, but usually doesn't eliminate
it from the final program.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76730 91177308-0d34-0410-b5e6-96231b3b80d8

Don't forget D16 - D31 are clobbered by calls and sjlj eh.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76729 91177308-0d34-0410-b5e6-96231b3b80d8

Add R12 to the list of registers clobbered by 16-bit Thumb calls as a pre-caution. r12 could be live once we have mixed 32-bit and 16-bit instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76728 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a obvious copy-n-paste bug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76727 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid one of the getRegisterNumbering. Also add D16 - D31.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76725 91177308-0d34-0410-b5e6-96231b3b80d8

remove Bill from the author list: his contribution (describing llvm::Ostream
and friends) has been removed awhile ago.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76724 91177308-0d34-0410-b5e6-96231b3b80d8

add some more topics to the coding standards doc:

* Use Early Exits and 'continue' to Simplify Code
* Turn Predicate Loops into Predicate Functions
* Spaces Before Parentheses
* Namespace Indentation
* Anonymous Namespaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76723 91177308-0d34-0410-b5e6-96231b3b80d8

Attempt to fix BuildBot breakage with MSVC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76722 91177308-0d34-0410-b5e6-96231b3b80d8

fix some formatting stuff, patch by Edward O'Callaghan!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76718 91177308-0d34-0410-b5e6-96231b3b80d8

Remove intrinsic support for __builtin_ia32_vec_set_v16qi and
__builtin_ia32_vec_set_v4si as these should be lowered in the
front-end to inserts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76714 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for MMX VSETCC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76713 91177308-0d34-0410-b5e6-96231b3b80d8

Added the unconditional JMP with an 8-bit relocation for the
assembler / disassembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76712 91177308-0d34-0410-b5e6-96231b3b80d8

Add an entry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76711 91177308-0d34-0410-b5e6-96231b3b80d8

inline the two MergeableConstSection implementations into their
only caller.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76710 91177308-0d34-0410-b5e6-96231b3b80d8

set the ELF "small" flag on objects that end up in .rodata.cst4 consistently,
updating a mips testcase to expect it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76707 91177308-0d34-0410-b5e6-96231b3b80d8

don't set the small flag yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76706 91177308-0d34-0410-b5e6-96231b3b80d8

remove the SelectSectionForMachineConst hook, replacing it with
a new getSectionForMergableConstant hook.  This removes one dependence
of TAI on Type, and provides the hook with enough info to make the
right decision based on whether the global has relocations etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76705 91177308-0d34-0410-b5e6-96231b3b80d8

Let each target determines whether a machine instruction is dead. If true, that allows late codeine passes to delete it.

This is considered a workaround. The problem is some targets are not modeling side effects correctly. PPC is apparently one of those. This patch allows ppc llvm-gcc to bootstrap on Darwin. Once we find out which instruction definitions are wrong, we can remove the PPCInstrInfo workaround.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76703 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of the Pass+Context magic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8

reimplement Constant::ContainsRelocations as
Constant::getRelocationInfo(), which has a much simpler
to use API.  It still should not be part of libvmcore, but
is better than it was.  Also teach it to be smart about
hidden visibility.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76700 91177308-0d34-0410-b5e6-96231b3b80d8

Misc. doc fixes following suggestions from Eli.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76699 91177308-0d34-0410-b5e6-96231b3b80d8

Fixing cp island pass. Step 1: Determine whether the constant pool offset can be
negative on an individual bases rather than basing on whether it's in thumb
mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76698 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76693 91177308-0d34-0410-b5e6-96231b3b80d8

simplify code now that it is inlined.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76689 91177308-0d34-0410-b5e6-96231b3b80d8

Exposed PHIElimination pass within CodeGen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76688 91177308-0d34-0410-b5e6-96231b3b80d8

Now that RelocBehaviour() is never overloaded, it doesn't need to be
virtual.  Just inline it into its two current call sites in preparation
for simplifying the code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76686 91177308-0d34-0410-b5e6-96231b3b80d8

Add intrinsic for __builtin_ia32_vec_set_v4si which turns out to be
pinsrd in sse4.1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76684 91177308-0d34-0410-b5e6-96231b3b80d8

this doesn't break any of the 4 ia64 tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76683 91177308-0d34-0410-b5e6-96231b3b80d8