llvm-svn: 114736

llvm-svn: 114733

llvm-svn: 114723

 - I believe more modern 'gas' supports a more enhanced set of arithmetic on
   them, but for now the only thing we can do is emit them as data.

llvm-svn: 114719

llvm-svn: 114718

llvm-svn: 114717

reflection, this isn't going to achieve the purpose I intended it for.  Back to the drawing board!

llvm-svn: 114710

llvm-svn: 114709

llvm-svn: 114707

llvm-svn: 114706

llvm-svn: 114705

llvm-svn: 114703

llvm-svn: 114696

(2 == STB_WEAK | STB_GLOBAL).

llvm-svn: 114690

llvm-svn: 114689

Fix r114632. Return if the only terminator is an unconditional branch after the redundant ones are deleted.

llvm-svn: 114688

constant. Hopefully the non-Darwin bots will like it...

llvm-svn: 114687

llvm-svn: 114686

llvm-svn: 114684

Revert 114634 for now since buildbot claim it broke Clang self-hosting. I doubt it but it's possible it's exposing another bug somewhere.

llvm-svn: 114681

(yet) recognize the 'trap' mnemonic, so we use .short/.long to emit the
opcode directly. On Darwin, however, we do want the mnemonic for more
readable assembly code and better disassembly.

Adjust the .td file to use the 'trap' mnemonic and handle using the binutils
workaround in the assembly printer. Also tweak the formatting of the opcode
values to make them consistent between the MC printer and the old printer.

llvm-svn: 114679

last commit.

llvm-svn: 114678

llvm-svn: 114676

they are in. Both ways should be equivalent, but gas produces relocations
against the section.

Roman wrote the patch, I added the test.

llvm-svn: 114667

"external" even when doing lazy bitcode loading.  This was broken because
a function that is not materialized fails the !isDeclaration() test.

llvm-svn: 114666

Patch by Nathan Jeffords!

llvm-svn: 114661

llvm-svn: 114639

llvm-svn: 114634

break critical edges on demand.

llvm-svn: 114633

but the first one. Those will never be executed. There was logic to do this
but it was faulty.

llvm-svn: 114632

close to their sources to facilitate coalescing.

llvm-svn: 114631

when the unconditional branch destination is the fallthrough block. The
canonicalization makes it easier to allow optimizations on DAGs to invert
conditional branches. The branch folding pass (and AnalyzeBranch) will clean up
the unnecessary unconditional branches later.

This is one of the patches leading up to disabling codegen prepare critical edge
splitting.

llvm-svn: 114630

Moved the PBQP allocator class out of the header and back in to the cpp file to hide the gory details.
Allocator instances can now be created by calling createPBQPRegisterAllocator.

Tidied up use of CoalescerPair as per Jakob's suggestions.

Made the new PBQPBuilder based construction process the default. The internal construction process
remains in-place and available via -pbqp-builder=false for now. It will be removed shortly if the new
process doesn't cause any regressions.

llvm-svn: 114626

because of the lack of a newline, AsmToken::Eof
was being found instead of AsmToken::EndOfStatement.

llvm-svn: 114621

new VariantKind to the MCSymbolExpr seems like overkill, but I'm not sure
there's a more straightforward way to get the printing difference captured.
(i.e., x86 uses @PLT, ARM uses (PLT)).

llvm-svn: 114613

llvm-svn: 114601

lowered using a series of shifts.
Fixes <rdar://problem/8285015>.

llvm-svn: 114599

llvm-svn: 114597

CombineTo to avoid putting the result on the worklist.  I don't think it makes
much difference for now, but it might help someday as we add more DAG
combine optimizations.

llvm-svn: 114595

llvm-svn: 114594