Remove a bogus optimization. It's not possible to do a move to low element to a <8 x i16> or <16 x i8> vector.

llvm-svn: 44669

llvm-svn: 44668

llvm-svn: 44666

to rewriter (my previous patch).

llvm-svn: 44665

struct STestB1 {char a; char b:2; } stb1;
struct STestB2 {char a; char b:5; char c:4} stb2;

llvm-svn: 44664

Simpler and safer.

llvm-svn: 44663

llvm-svn: 44662

llvm-svn: 44661

llvm-svn: 44660

only disable it if we don't know it will be obviously profitable.
Still fixme, but less so. :)

llvm-svn: 44658

the X86 backend are needed before this should be enabled by default.

llvm-svn: 44657

_foo:
	movl	$12, %eax
	andl	4(%esp), %eax
	movl	_array(%eax), %eax
	ret

instead of:

_foo:
	movl	4(%esp), %eax
	shrl	$2, %eax
	andl	$3, %eax
	movl	_array(,%eax,4), %eax
	ret

As it turns out, this triggers all the time, in a wide variety of
situations, for example, I see diffs like this in various programs:

-       movl    8(%eax), %eax
-       shll    $2, %eax
-       andl    $1020, %eax
-       movl    (%esi,%eax), %eax
+       movzbl  8(%eax), %eax
+       movl    (%esi,%eax,4), %eax


-       shll    $2, %edx
-       andl    $1020, %edx
-       movl    (%edi,%edx), %edx
+       andl    $255, %edx
+       movl    (%edi,%edx,4), %edx

Unfortunately, I also see stuff like this, which can be fixed in the
X86 backend:

-       andl    $85, %ebx
-       addl    _bit_count(,%ebx,4), %ebp
+       shll    $2, %ebx
+       andl    $340, %ebx
+       addl    _bit_count(%ebx), %ebp

llvm-svn: 44656

llvm-svn: 44655

llvm-svn: 44654

llvm-svn: 44653

llvm-svn: 44651

llvm-svn: 44650

llvm-svn: 44649

crash because of this.

llvm-svn: 44648

to create a JIT.  This lets you specify JIT-specific configuration items
like the JITMemoryManager to use.

llvm-svn: 44647

delete one ExecutionEngine ctor, minor cleanup.

llvm-svn: 44646

llvm-svn: 44645

Fix for PR1831: if all defs of an interval are re-materializable, then it's a preferred spill candiate.

llvm-svn: 44644

If both result of the {s|z}xt and its source are live out, rewrite all uses of the source with result of extension.

llvm-svn: 44643

GetLanguage, and InitializeLangOptions.  The goal is to break up this logic
into atomic units of functionality that can later be refactored into better
driver logic that is capable of handling a mixture of source files of
different languages.

llvm-svn: 44642

llvm-svn: 44641

own JITMemoryManager interface.  There is no functionality change with 
this patch.

llvm-svn: 44640

llvm-svn: 44639

llvm-svn: 44638

llvm-svn: 44637

Make sure Parser::ParseObjCSelectorExpression() handles unary selectors (with no arguments) properly.

llvm-svn: 44636

llvm-svn: 44635

class to serialize and deserialize translation units.

llvm-svn: 44634

Make sure the class methods get attached to the metaclass object.
Need to query the implementation, not the interface...

llvm-svn: 44633

XCode project.

llvm-svn: 44632

for serializing/deserializing ASTs that is decoupled from the logic
in SerializationTest (which will soon be rewritten to use this interface).

llvm-svn: 44631

Modified: ctor of SerializationTest: Now takes LangOptions argument.  We
          will eventually serialize this as well.

llvm-svn: 44630

llvm-svn: 44629

llvm-svn: 44628

- Fix typo in SPUCallingConv.td
- Credit myself for CellSPU work
- Add CellSPU to 'all' host target list

llvm-svn: 44627