Fix dependencies added to model memory aliasing for post-RA scheduling. The dependencies were overly conservative for memory access that are known not to alias.

llvm-svn: 86580

llvm-svn: 86575

the loop. This is needed because with indirectbr it may not be possible
for LoopSimplify to guarantee that all loop exit predecessors are
inside the loop. This fixes PR5437.

LCCSA no longer actually requires LoopSimplify form, but for now it
must still have the dependency because the PassManager doesn't know
how to schedule LoopSimplify otherwise.

llvm-svn: 86569

llvm-svn: 86565

llvm-svn: 86564

llvm-svn: 86549

llvm-svn: 86548

Make lib/Support/Debug.cpp SetCurrentDebugType implementation part of llvm namespace to match function declaration in Debug.h.

llvm-svn: 86544

http://llvm.org/bugs/show_bug.cgi?id=5149

llvm-svn: 86543

llvm-svn: 86525

it to a normal binop.  Patch by Alastair Lynn, testcase by me.

llvm-svn: 86524

llvm-svn: 86522

llvm-svn: 86521

putchar in case there is an error.

llvm-svn: 86515

llvm-svn: 86511

llvm-svn: 86510

used by a chain of other PHIs.

llvm-svn: 86503

llvm-svn: 86499

here:

1) We need to avoid processing sigma nodes as phi nodes for constraint generation.
2) We need to generate constraints for comparisons against constants properly.

This includes our first working ABCD test!

llvm-svn: 86498

llvm-svn: 86497

llvm-svn: 86494

graphs being produced.  The cause was that we were incorrectly marking sigma instructions as
processed after handling the sigma-specific constraints for them, potentially neglecting to
process them as normal instructions as well.

Unfortunately, the testcase that inspired this still doesn't work because of a bug in the solver,
which is next on the list to debug.

llvm-svn: 86486

when both the source and dest are illegal types, since it would cause
the phi to grow (for example, we shouldn't transform test14b's phi to
a phi on i320).  This fixes an infinite loop on i686 bootstrap with
phi slicing turned on, so turn it back on.

llvm-svn: 86483

not to work any more on linux.

llvm-svn: 86481

(SliceUpIllegalIntegerPHI) disabled.

llvm-svn: 86480

llvm-gcc bootstrap.

llvm-svn: 86478

llvm-svn: 86471

llvm-svn: 86470

llvm-svn: 86469

llvm-svn: 86468

llvm-svn: 86466

code miscompilation

llvm-svn: 86463

llvm-svn: 86458

llvm-svn: 86446

not turn a PHI in a legal type into a PHI of an illegal type, and
add a new optimization that breaks up insane integer PHI nodes into
small pieces (PR3451).

llvm-svn: 86443

native anyways. This fixes a crash using %d and similar in a scanf statement.

llvm-svn: 86440

this gives llvm-gcc generated modules the right data.

llvm-svn: 86435

llvm-svn: 86428

Use aligned load/store instructions for spilling Q registers when we know the stack slot is 128 bit aligned

llvm-svn: 86425

llvm-svn: 86423