features autodetected.  This fixes PR1010 and Regression/CodeGen/X86/xmm-r64.ll
on non-x86-64 hosts.

llvm-svn: 31879

llvm-svn: 31874

clearing the upper 8-bits instead of issuing two instructions. This also
eliminates the need to target the AH register which can be problematic on
x86-64.

llvm-svn: 31832

llvm-svn: 31830

llvm-svn: 31813

Correct instructions for moving data between GR64 and SSE registers; also correct load i64 / store i64 from v2i64.

llvm-svn: 31795

llvm-svn: 31794

llvm-svn: 31790

llvm-svn: 31765

llvm-svn: 31764

llvm-svn: 31754

llvm-svn: 31737

llvm-svn: 31730

llvm-svn: 31712

llvm-svn: 31676

llvm-svn: 31674

llvm-svn: 31650

llvm-svn: 31649

take v4f32 / v2f64 operands and may end up causing larger spills / restores.
Added X86 specific nodes X86ISD::FMAX, X86ISD::FMIN instead.

This fixes PR996.

llvm-svn: 31645

SCALAR_TO_VECTOR, even if the hasOneUse() check pass we may end up folding
the load into two instructions. Make sure we check the SCALAR_TO_VECTOR
has only one use as well.

llvm-svn: 31641

llvm-svn: 31634

llvm-svn: 31633

Use TargetInstrInfo::getNumOperands() instead of MachineInstr::getNumOperands(). In preparation for implicit reg def/use changes.

llvm-svn: 31616

This should unbreak csretcc on Linux & mingw targets. Several tests from
llvm-test should be also restored (fftbench, bigfib).

llvm-svn: 31613

llvm-svn: 31583

llvm-svn: 31572

llvm-svn: 31571

shuffle v, undef, <2, ?, 3, ?>
to movhlps
It should match to unpckhps instead.

Added proper matching code for
shuffle v, undef, <2, 3, 2, 3>

llvm-svn: 31519

llvm-svn: 31464

llvm-svn: 31435

llvm-svn: 31405

llvm-svn: 31393

Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380

llvm-svn: 31343

llvm-svn: 31327

-static mode.  This implements PR882.

llvm-svn: 31326

llvm-svn: 31325

llvm-svn: 31320

2. Added partial debug support for mingw\cygwin targets (the same as
   Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format
   for storing debug info by default, thus many (runtime) libraries has
   this information included. These formats shouldn't be mixed in one binary
   ('stabs' & 'DWARF'), otherwise binutils tools will be confused.

llvm-svn: 31311

Defaulting second arguments of SwitchTo*Section, this should make things
somehow clearer.

llvm-svn: 31306