llvm-svn: 32428

_pairtest:
        movl 8(%esp), %eax
        movl 4(%esp), %ecx
        movd %eax, %xmm0
        movd %ecx, %xmm1
        addss %xmm0, %xmm1
        movl 12(%esp), %eax
        movss %xmm1, (%eax)
        ret

instead of:

_pairtest:
        subl $12, %esp
        movl 20(%esp), %eax
        movl %eax, 4(%esp)
        movl 16(%esp), %eax
        movl %eax, (%esp)
        movss (%esp), %xmm0
        addss 4(%esp), %xmm0
        movl 24(%esp), %eax
        movss %xmm0, (%eax)
        addl $12, %esp
        ret

llvm-svn: 32427

llvm-svn: 32426

llvm-svn: 32424

The rot example works if the type is cast to ubyte.

Move sroa examples together and upgrade them to HEAD syntax.

llvm-svn: 32423

This implements Transforms/ScalarRepl/union-packed.ll

llvm-svn: 32422

Regression/Transforms/IndVarsSimplify/2006-12-10-BitCast.ll

llvm-svn: 32420

 * Add support for promoting unions with fp values in them.  This produces
   our new int<->fp bitcast instructions, implementing
   Transforms/ScalarRepl/union-fp-int.ll

As an example, this allows us to compile this:

union intfloat { int i; float f; };
float invsqrt(const float arg_x) {
    union intfloat x = { .f = arg_x };
    const float xhalf = arg_x * 0.5f;
    x.i = 0x5f3759df - (x.i >> 1);
    return x.f * (1.5f - xhalf * x.f * x.f);
}

into:

_invsqrt:
        movss 4(%esp), %xmm0
        movd %xmm0, %eax
        sarl %eax
        movl $1597463007, %ecx
        subl %eax, %ecx
        movd %ecx, %xmm1
        mulss LCPI1_0, %xmm0
        mulss %xmm1, %xmm0
        movss LCPI1_1, %xmm2
        mulss %xmm1, %xmm0
        subss %xmm0, %xmm2
        movl 8(%esp), %eax
        mulss %xmm2, %xmm1
        movss %xmm1, (%eax)
        ret

instead of:

_invsqrt:
        subl $4, %esp
        movss 8(%esp), %xmm0
        movss %xmm0, (%esp)
        movl (%esp), %eax
        movl $1597463007, %ecx
        sarl %eax
        subl %eax, %ecx
        movl %ecx, (%esp)
        mulss LCPI1_0, %xmm0
        movss (%esp), %xmm1
        mulss %xmm1, %xmm0
        mulss %xmm1, %xmm0
        movss LCPI1_1, %xmm2
        subss %xmm0, %xmm2
        mulss %xmm2, %xmm1
        movl 12(%esp), %eax
        movss %xmm1, (%eax)
        addl $4, %esp
        ret

llvm-svn: 32418

code (both asm & cbe) for Mingw32 target.
Removed autoconf checks for underscored versions of setjmp/longjmp.

llvm-svn: 32415

llvm-svn: 32413

llvm-svn: 32412

static dtors.

llvm-svn: 32411

.comm is in bytes
:-(

llvm-svn: 32408

if a variable has no initialization, I->getInitializer() will fail

llvm-svn: 32407

llvm-svn: 32394

llvm-svn: 32393

llvm-svn: 32389

removed now.

llvm-svn: 32388

llvm-svn: 32387

llvm-svn: 32386

pass manager queuer.

llvm-svn: 32385

AnalysisResolver.

llvm-svn: 32383

top level manager. Use this info to findAnalysisPass.

llvm-svn: 32382

llvm-svn: 32381

Use one provided by toplevel manager.

llvm-svn: 32380

llvm-svn: 32379

llvm-svn: 32378

PMDataManager::findAnalysisPass()

llvm-svn: 32377

llvm-svn: 32376

MarkAliveBlocks.

llvm-svn: 32375

llvm-svn: 32373

Instead, the stat info is printed when llvm_shutdown() is called.
These also don't need static ctors, but getting rid of them is uglier:
still investigating.  This reduces the number of static dtors in llvm from
~1400 to ~750.

llvm-svn: 32372

llvm-svn: 32371

llvm-svn: 32370

llvm-svn: 32368

llvm-svn: 32366

llvm-svn: 32364

llvm-svn: 32362

llvm-svn: 32361

tied to another oeprand, 2) whether is is being tied to by another operand. So
the destination operand of a two-address MI can be correctly identified.

llvm-svn: 32354