Fixes a pile of libgomp failures in the llvm-gcc testsuite due
to the libcall not existing.

llvm-svn: 109004

llvm-svn: 109002

llvm-svn: 108984

llvm-svn: 108983

llvm-svn: 108964

llvm-svn: 108955

llvm-svn: 108952

llvm-svn: 108950

llvm-svn: 108949

llvm-svn: 108947

llvm-svn: 108945

llvm-svn: 108892

llvm-svn: 108812

llvm-svn: 108788

llvm-svn: 108787

of AsmPrinter and InstLowering into libx86 and out of the
asmprinter subdirectory.  Now X86/AsmPrinter just depends on
MC stuff, not all of codegen and LLVM IR.

llvm-svn: 108782

llvm-svn: 108769

instruction, we only want to allow the one for the current subtarget.
 - This also fixes suffix matching for jmp instructions, because it eliminates
   the ambiguity between 'jmpl' and 'jmpq'.

llvm-svn: 108746

llvm-svn: 108685

llvm-svn: 108684

llvm-svn: 108683

assembling; remove crufty custom cleanup code.

llvm-svn: 108681

llvm-svn: 108680

llvm-svn: 108679

TblGen/AsmMatcher: Add support for honoring instruction Requires<[]> attributes as part of the matcher.
 - Currently includes a hack to limit ourselves to "In32BitMode" and "In64BitMode", because we don't have the other infrastructure to properly deal with setting SSE, etc. features on X86.

llvm-svn: 108677

 - Unfortunate, but necessary for now to handle subtarget instruction matching. Eventually we should factor out the lower level target machine information so we don't need to do this.

llvm-svn: 108664

llvm-svn: 108626

llvm-svn: 108625

llvm-svn: 108588

needsStackRealignment is currently checking the can conditions as well.

llvm-svn: 108581

llvm-svn: 108567

llvm-svn: 108565

thus is a much more meaningful name.

llvm-svn: 108563

The isLive() method can read uninitialized memory, but it still gives correct
results.

llvm-svn: 108561

llvm-svn: 108545

pass that inserted it.

It is no longer necessary to limit the live ranges of FP registers to a single
basic block.

llvm-svn: 108536

llvm-svn: 108535

FP_REG_KILL instructions are still inserted, but can be disabled by passing
-live-x87 to llc. The X87FPRegKillInserterPass is going to be removed shortly.

CFG edges are partioned into bundles where the x87 stack must be allocated
identically. Code is insertad at the end of each basic block that shuffles the
live FP registers to match the outgoing bundles expectations.

This fix is in preparation for some upcoming register allocator improvements
that may extend the live range of registers beyond a basic block, similar to
LICM. It also provides a nice runtime speedup if you are building with
-mfpmath=387.

llvm-svn: 108529

-enable-no-nans-fp-math and -enable-no-infs-fp-math. All of the current codegen fp math optimizations only care whether the fp arithmetics arguments and results can never be NaN.

llvm-svn: 108465

this fixes rdar://8192860.  Unfortunately it can only be triggered
with llc because llvm-mc matches another (correctly encoded) version
of this, so no testcase.

llvm-svn: 108454