If a spillslot value is available in a register, and there is a noop copy that
targets that register, the spiller correctly decide not to invalidate the
spillslot register.

However, even though the noop copy does not clobbers the value. It does start a
new intersecting live range. That means the spillslot register is available for
use but should not be reused for a two-address instruction modref operand which
would clobber the new live range.

When we remove the noop copy, update the available information by clearing the
canClobber bit.

llvm-svn: 32576

llvm-svn: 32559

llvm-svn: 32527

llvm-svn: 32526

llvm-svn: 32523

creation calls.

llvm-svn: 32521

llvm-svn: 32497

llvm-svn: 32495

llvm-svn: 32494

llvm-svn: 32493

its expansion result type is equal to the result type of the bit_convert,
e.g. (i64 bit_convert (f64 op)) if FP is not legal
returns the result of the expanded source operand.
- Store f32 / f64 may be expanded to a single store i32/i64.

llvm-svn: 32490

llvm-svn: 32476

llvm-svn: 32474

llvm-svn: 32473

llvm-svn: 32472

llvm-svn: 32471

llvm-svn: 32470

and legalizer separated like they currently are, I don't see a way to handle
this xform.

llvm-svn: 32466

This is not sufficient to fix X86/store-fp-constant.ll

llvm-svn: 32465

llvm-svn: 32462

llvm-svn: 32460

llvm-svn: 32442

For now, just grab the stream and perform the output on it directly.

llvm-svn: 32441

llvm-svn: 32440

llvm-svn: 32434

llvm-svn: 32433

llvm-svn: 32432

dag combiner.

llvm-svn: 32431

Supports constant pools
Supports relocations to jump tables
Supports relocations within the data segment (global = address of global)
Allocates memory in a non-hacky for all non-code objects.

llvm-svn: 32430

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

llvm-svn: 32415

llvm-svn: 32394

llvm-svn: 32366

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

llvm-svn: 32353

llvm-svn: 32336

llvm-svn: 32321

llvm-svn: 32320

Reverted.

llvm-svn: 32305

llvm-svn: 32299

now cerr, cout, and NullStream resp.

llvm-svn: 32298