llvm-svn: 22440

Add parenthesis around the value being negated; that way, if the value
begins with a minus sign (e.g. negative integer), we won't generate a
C predecrement operator by mistake.

llvm-svn: 22437

working before modifying the asm printer to use the subtarget info.

llvm-svn: 22408

llvm-svn: 22407

llvm-svn: 22397

llvm-svn: 22394

to the constructor.

llvm-svn: 22392

llvm-svn: 22391

llvm-svn: 22390

Implement the X86 Subtarget.

This consolidates the checks for target triple, and setting options based
on target triple into one place.  This allows us to convert the asm printer
and isel over from being littered with "forDarwin", "forCygwin", etc. into
just having the appropriate flags for each subtarget feature controlling
the code for that feature.

This patch also implements indirect external and weak references in the
X86 pattern isel, for darwin.  Next up is to convert over the asm printers
to use this new interface.

llvm-svn: 22389

llvm-svn: 22388

llvm-svn: 22385

llvm-svn: 22381

llvm-svn: 22380

after itself.

llvm-svn: 22376

llvm-svn: 22372

This is the last MVTSDNode.

This allows us to eliminate a bunch of special case code for handling
MVTSDNodes.

Also, remove some uses of dyn_cast that should really be cast (which is
cheaper in a release build).

llvm-svn: 22368

llvm-svn: 22366

Add support for running bugpoint on mac os x for intel

llvm-svn: 22351

llvm-svn: 22346

This fixes the regressions from last night.

llvm-svn: 22344

llvm-svn: 22341

XMM registers.  There are many known deficiencies and fixmes, which will be
addressed ASAP.  The major benefit of this work is that it will allow the
LLVM register allocator to allocate FP registers across basic blocks.

The x86 backend will still default to x87 style FP.  To enable this work,
you must pass -enable-sse-scalar-fp and either -sse2 or -sse3 to llc.

An example before and after would be for:
double foo(double *P) { double Sum = 0; int i; for (i = 0; i < 1000; ++i)
                        Sum += P[i]; return Sum; }

The inner loop looks like the following:
x87:
.LBB_foo_1:     # no_exit
        fldl (%esp)
        faddl (%eax,%ecx,8)
        fstpl (%esp)
        incl %ecx
        cmpl $1000, %ecx
        #FP_REG_KILL
        jne .LBB_foo_1  # no_exit

SSE2:
        addsd (%eax,%ecx,8), %xmm0
        incl %ecx
        cmpl $1000, %ecx
        #FP_REG_KILL
        jne .LBB_foo_1  # no_exit

llvm-svn: 22340

1. Pass Value*'s into lowering methods so that the proper pointers can be
   added to load/stores from the valist
2. Intrinsics that return void should only return a token chain, not a token
   chain/retval pair.
3. Rename LowerVAArgNext -> LowerVAArg, because VANext is long gone.
4. Now that we have Value*'s available in the lowering methods, pass them
   into any load/stores from the valist that are emitted

llvm-svn: 22339

llvm-svn: 22336

llvm-svn: 22335

llvm-svn: 22332

llvm-svn: 22331

llvm-svn: 22330

llvm-svn: 22327

is at least overloading the right virtual methods.  The implementations
are currently wrong though.  This fixes Ptrdist/bc, but not other programs
(e.g. siod).

llvm-svn: 22326

by Aaron Gray, cleaned up by me.

llvm-svn: 22324

llvm-svn: 22323

llvm-svn: 22322

llvm-svn: 22321

thing as cygwin most of the time, and printing our alignments in log2
rather than number of bytes.

llvm-svn: 22316

llvm-svn: 22315

tracking the instructions causing loads and stores provides more information than just the pointer being loaded or stored

llvm-svn: 22311

llvm-svn: 22309

llvm-svn: 22308