llvm-svn: 30608

int x __attribute__((used));

to:

        .data
.comm _x,4              ; 'x'
        .no_dead_strip  _x

on both x86 and ppc darwin targets.

llvm-svn: 30605

llvm-svn: 30583

llvm-svn: 30559

llvm-svn: 30556

llvm-svn: 30553

llvm-svn: 30549

llvm-svn: 30515

llvm-svn: 30457

Added X86 StdCall & FastCall calling conventions. Codegen will follow.

llvm-svn: 30446

llvm-svn: 30441

llvm-svn: 30406

llvm-svn: 30382

DLL* linkages got full (I hope) codegeneration support in C & both x86
assembler backends.
External weak linkage added for future use, we don't provide any
codegeneration, etc. support for it.

llvm-svn: 30374

llvm-svn: 30308

llvm-svn: 30300

llvm-svn: 30294

llvm-svn: 30293

We now compile CodeGen/X86/lea-2.ll into:

_test:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        leal -5(%ecx,%eax,4), %eax
        ret

instead of:

_test:
        movl 4(%esp), %eax
        leal (,%eax,4), %eax
        addl 8(%esp), %eax
        addl $4294967291, %eax
        ret

llvm-svn: 30288

llvm-svn: 30286

llvm-svn: 30285

This implements CodeGen/X86/jump_sign.ll.

llvm-svn: 30283

llvm-svn: 30279

llvm-svn: 30271

llvm-svn: 30269

llvm-svn: 30268

llvm-svn: 30245

llvm-svn: 30244

operand of a conditional branch to allow load folding into CMP / TEST
instructions.

llvm-svn: 30241

in addition to immediate operands.

llvm-svn: 30205

llvm-svn: 30190

llvm-svn: 30178

llvm-svn: 30177

  shuffle V1, <undef>, <undef, undef, 4, 5>
- Fix some suspicious logic into LowerVectorShuffle that cause less than
  optimal code by failing to identify MOVL (move to lowest element of a
  vector).

llvm-svn: 30171

2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.

llvm-svn: 30169

llvm-svn: 30165

host, it should be affected by the target.  Allow the command line option to
override in either case.

llvm-svn: 30164

llvm-svn: 30162

llvm-svn: 30161

using test, which provides nice simplifications like:

-       movl %edi, %ecx
-       andl $2, %ecx
-       cmpl $0, %ecx
+       testl $2, %edi
        je LBB1_11      #cond_next90

There are a couple of dagiselemitter deficiencies that this exposes, they will
be handled later.

llvm-svn: 30156