This allows to elimination of a bunch of global pool descriptor args from
programs being pool allocated (and is also generally useful!)

llvm-svn: 17657

llvm-svn: 17655

* Implement createTemporaryFile for mkstemp(3) functionality
* Fix isBytecodeFile to accept llvc magic # (compressed) as bytecode.

llvm-svn: 17654

This should fix the problem of not being able to link compressed LLVM
bytecode files from LLVM libraries.

llvm-svn: 17648

bzip2: block size 9 -> 5, reduces memory by 400Kbytes, doesn't affect speed
       or compression ratio on all but the largest bytecode files (>1MB)
zip:   level 9 -> 6, this speeds up compression time by ~30% but only
       degrades the compressed size by a few bytes per megabyte. Those few
       bytes aren't worth the effort.

llvm-svn: 17647

nightly testers

llvm-svn: 17646

llvm-svn: 17642

* Order #includes according to style guide
* Remove extraneous blank lines

llvm-svn: 17639

llvm-svn: 17637

llvm-svn: 17634

llvm-svn: 17632

llvm-svn: 17631

llvm-svn: 17621

move instructions for the register allocator to coalesce.

llvm-svn: 17608

llvm-svn: 17601

exciting to inline.  Only inline medium or small sized functions with a
single call site.

llvm-svn: 17588

llvm-svn: 17583

* Accept 'llvc' as signature for compressed bytecode

llvm-svn: 17579

llvm-svn: 17578

* Make signature for compressed bytecode llvc instead of unreadable
* Make the CompressionContext have a constructor and destructor.

llvm-svn: 17576

llvm-svn: 17549

llvm-svn: 17548

llvm-svn: 17547

llvm-svn: 17545

llvm-svn: 17544

llvm-svn: 17535

externally visible defined symbols from a bytecode file.

llvm-svn: 17503

llvm-svn: 17500

yet supported but writing works. Way too early to review this. More to come

llvm-svn: 17499

llvm-svn: 17498

llvm-svn: 17488

llvm-svn: 17485

llvm-svn: 17484

llvm-svn: 17483

llvm-svn: 17482

llvm-svn: 17481

int test(int x) { return 32768 - x; }

Fixed by teaching the function that checks a constant's validity to be used
as an immediate argument about subtract-from instructions.

llvm-svn: 17476

llvm-svn: 17464

llvm-svn: 17457

This method is really a gross hack, but at least we can make it work on
the targets we support right now.

This bug fix stops a crash in a testcase reduced from 176.gcc

llvm-svn: 17443