llvm-svn: 11078

llvm-svn: 11077

llvm-svn: 11070

llvm-svn: 11055

llvm-svn: 11026

llvm-svn: 11025

FP_REG_KILL instructions at the end of blocks involved with critical edges.

Fix a bug where FP_REG_KILL instructions weren't inserted in fall through
unconditional branches.  Perhaps this will fix some linscan problems?

llvm-svn: 11019

It's not clear why the code was looking for signed chars < 0, but it can't
matter to the assembler anyway, so the check goes away.

llvm-svn: 10853

register so that LiveVariable analysis is not confused.

llvm-svn: 10773

implementation from the TargetMachine directly.

llvm-svn: 10636

allocation.

llvm-svn: 10633

llvm-svn: 10632

llvm-svn: 10629

llvm-svn: 10567

llvm-svn: 10563

instruction selector by adding a new pseudo-instruction
FP_REG_KILL. This instruction implicitly defines all x86 fp registers
and is a terminator so that passes which add machine code at the end
of basic blocks (like phi elimination) do not add instructions between
it and the branch or return instruction.

llvm-svn: 10562

been emitted.  Also, since the FPK pass is causing memory access violations,
disable it.

llvm-svn: 10559

instructions on an ilist

llvm-svn: 10556

Minor cleanups to killer pass

llvm-svn: 10555

llvm-svn: 10545

llvm-svn: 10542

    a) remove opIsUse(), opIsDefOnly(), opIsDefAndUse()
    b) add isUse(), isDef()
    c) rename opHiBits32() to isHiBits32(),
              opLoBits32() to isLoBits32(),
              opHiBits64() to isHiBits64(),
              opLoBits64() to isLoBits64().

This results to much more readable code, for example compare
"op.opIsDef() || op.opIsDefAndUse()" to "op.isDef()" a pattern used
very often in the code.

llvm-svn: 10461

llvm-svn: 10460

allocaton on the X86 to add information to the machine code denoting
that our floating point stackifier cannot handle virtual point
register that are alive across basic blocks. This pass adds an
implicit def of all virtual floating point register at the end of each
basic block.

llvm-svn: 10446

a pointer.  This evades a warning emitted by GCC when we cast from
unsigned int (32 bit) to void * (64 bit) on SparcV9.

llvm-svn: 10435

namespacification.

llvm-svn: 10430

Eventually this pass will provide substantially better code in the interim between when we
have a crappy isel and nice isel.  Unfortunately doing so requires fixing the backend to
actually SUPPORT all of the fancy addressing modes that we now generate, and writing a DCE
pass for machine code.  Each of these is a fairly substantial job, so this will remain disabled
for the immediate future.  :(

llvm-svn: 10276

folding of instructions into addressing modes.  This creates lots of dead
instructions, which are currently not deleted.  It also creates a lot of
instructions that the X86 backend currently cannot handle.  :(

llvm-svn: 10275

llvm-svn: 10274

llvm-svn: 10270

the other way around, instead of failing a large, tumor-like assertion.

llvm-svn: 10171

llvm-svn: 10170

llvm-svn: 10168

llvm-svn: 10069

llvm-svn: 9903

llvm-svn: 9761

llvm-svn: 9758

get just the filename and not the full path, just use the filename directly.

llvm-svn: 9730

return the number of instructions added to/removed from the basic block
passed as their first argument.

Note: This is only needed because we use a std::vector instead of an
ilist to keep MachineBasicBlock instructions. Inserting an instruction
to a MachineBasicBlock invalidates all iterators to the basic
block. The return value can be used to update an index to the machine
basic block instruction vector and circumvent the iterator elimination
problem but this is really not needed if we move to a better
representation.

llvm-svn: 9704

llvm-svn: 9694