llvm-svn: 30907

that it can't assume ESP is unmodified across the instrs.

llvm-svn: 30905

llvm-svn: 30900

This compiles both tests in X86/vec_ss_load_fold.ll into:

_test1:
        movss 4(%esp), %xmm0
        subss LCPI1_0, %xmm0
        mulss LCPI1_1, %xmm0
        minss LCPI1_2, %xmm0
        xorps %xmm1, %xmm1
        maxss %xmm1, %xmm0
        cvttss2si %xmm0, %eax
        andl $65535, %eax
        ret

instead of:

_test1:
        movss LCPI1_0, %xmm0
        movss 4(%esp), %xmm1
        subss %xmm0, %xmm1
        movss LCPI1_1, %xmm0
        mulss %xmm0, %xmm1
        movss LCPI1_2, %xmm0
        minss %xmm0, %xmm1
        xorps %xmm0, %xmm0
        maxss %xmm0, %xmm1
        cvttss2si %xmm1, %eax
        andl $65535, %eax
        ret

llvm-svn: 30894

llvm-svn: 30892

llvm-svn: 30891

See comment in CanBeFoldedBy() for detailed explanation.

llvm-svn: 30851

folding first.

llvm-svn: 30848

llvm-svn: 30847

llvm-svn: 30844

a framework for doing it right.  This fixes
CodeGen/X86/2006-10-07-ScalarSSEMiscompile.ll.

Once X86DAGToDAGISel::SelectScalarSSELoad is implemented right, this task
will be done.

llvm-svn: 30817

llvm-svn: 30815

llvm-svn: 30814

llvm-svn: 30813

llvm-svn: 30812

llvm-svn: 30811

Fix a bug where the asmstring for PSUBQrm was wrong.

llvm-svn: 30810

llvm-svn: 30809

llvm-svn: 30808

  PDI_binop_rm -> PDI_binop_rm_int
  PDI_binop_rmi -> PDI_binop_rmi_int

to make it clear that these are for use with intrinsics.

llvm-svn: 30807

llvm-svn: 30806

llvm-svn: 30805

This allows us to use the multiclass for other packs.

llvm-svn: 30804

llvm-svn: 30800

llvm-svn: 30797

llvm-svn: 30796

llvm-svn: 30795

llvm-svn: 30794

llvm-svn: 30793

llvm-svn: 30792

llvm-svn: 30791

llvm-svn: 30790

llvm-svn: 30789

llvm-svn: 30788

llvm-svn: 30787

llvm-svn: 30786

llvm-svn: 30785

Introduce SS_IntUnary, a multiclass to replace SS_Int[rm].

llvm-svn: 30784

llvm-svn: 30783

llvm-svn: 30770