- Yay for '-'s and simplifications!

 - I kept StringMap::GetOrCreateValue for compatibility purposes, this can
   eventually go away. Likewise the StringMapEntry Create functions still follow
   the old style.

 - NIFC.

llvm-svn: 76888

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.

llvm-svn: 76883

llvm-svn: 76880

llvm-svn: 76879

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.

llvm-svn: 76877

llvm-svn: 76872

of code mutating the graph while it is being traversed.  Patch by 
Olaf Krzikalla!

llvm-svn: 76869

llvm-svn: 76868

simplify it.

llvm-svn: 76866

llvm-svn: 76865

llvm-svn: 76864

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.

llvm-svn: 76863

with negative tests: this test wasn't checking what it thought it was
because it was grepping .bc, not .ll.

llvm-svn: 76861

llvm-svn: 76860

no functionality change.

llvm-svn: 76859

llvm-svn: 76855

llvm-svn: 76853

llvm-svn: 76852

llvm-svn: 76850

llvm-svn: 76849

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).

llvm-svn: 76848

testcases to make sure it's being generated.

llvm-svn: 76843

llvm-svn: 76842

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

llvm-svn: 76841

llvm-svn: 76840

llvm-svn: 76839

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

llvm-svn: 76838

llvm-svn: 76837

llvm-svn: 76836

llvm-svn: 76835

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

llvm-svn: 76834

llvm-svn: 76829

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.

llvm-svn: 76828

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.

llvm-svn: 76825

llvm-svn: 76823

a better solution for it in the future.

llvm-svn: 76818

llvm-svn: 76817

llvm-svn: 76812

llvm-svn: 76811

which stand for no-unsigned-wrap and no-signed-wrap.

llvm-svn: 76810