print the LLVM BB label.

llvm-svn: 30775

long long foo(long long X) {
  return (long long)(signed char)(int)X;
}

Instead of:

_foo:
        extsb r2, r4
        srawi r3, r4, 31
        mr r4, r2
        blr

we now produce:

_foo:
        extsb r4, r4
        srawi r3, r4, 31
        blr

This fixes a miscompilation in ConstantFolding.cpp.

llvm-svn: 30768

instructions.

llvm-svn: 30760

llvm-svn: 30759

llvm-svn: 30758

llvm-svn: 30757

llvm-svn: 30753

allowing label differences to work.  This fixes CodeGen/X86/pic_jumptable.ll

llvm-svn: 30744

llvm-svn: 30742

llvm-svn: 30736

llvm-svn: 30727

llvm-svn: 30721

llvm-svn: 30720

llvm-svn: 30715

extra operand to LOADX to specify the exact value extension type.

llvm-svn: 30714

is needed to support targets where {|} aren't special symbols.

llvm-svn: 30712

llvm-svn: 30711

llvm-svn: 30709

llvm-svn: 30708

can be used by MachineFunctionPasses who need this property.

llvm-svn: 30706

in a successor block for every block...resulting in some O(N^k) algorithm
which wasn't very good for performance. Calculating this information up
front and keeping it in a map made it much faster.

llvm-svn: 30697

llvm-svn: 30688

llvm-svn: 30686

llvm-svn: 30659

TargetRegisterClass specifies the desired spill alignment. However, it cannot be honored if stack alignment is smaller.

llvm-svn: 30648

with our English dead."

No! Really! Serious this time...It was how the vreg uses were being
adjusted that was causing hte Olden tests to fail. I corrected this and
the Olden and Regression tests all passed.

llvm-svn: 30644

This is a baby step towards fixing PR925.

llvm-svn: 30643

in olden among others.

llvm-svn: 30637

incoming stack. This allows X86 backend to use push / pop in epilogue /
prologue.

llvm-svn: 30636

llvm-svn: 30634

has disappeared.

llvm-svn: 30633

llvm-svn: 30628

a function, do it up front in linear time (going through all of the
instructions once). We create a map out of them. Then it's no problem to
use the information in it during elimination...

llvm-svn: 30624

llvm-svn: 30620

character, and ${:uid} which expands to a unique ID for the MachineInstr.
More can be added if/when they are needed.

llvm-svn: 30619

llvm-svn: 30616

llvm-svn: 30615

llvm-svn: 30613

llvm-svn: 30611

llvm-svn: 30610