Rename the AttributeImpl* from Attrs to pImpl to be consistent with other code.
Add comments where none were before. Or doxygen-ify other comments.

llvm-svn: 170767

llvm-svn: 170766

This reverts r170694.  The operations can be represented in IR without
adding any new intrinsics.

llvm-svn: 170765

Before if-conversion we could check if a value is loop invariant
if it was declared inside the basic block. Now that loops have
multiple blocks this check is incorrect.

This fixes External/SPEC/CINT95/099_go/099_go

llvm-svn: 170756

are more expensive than the non-flag setting variant. Teach thumb2 size
reduction pass to avoid generating them unless we are optimizing for size.

rdar://12892707

llvm-svn: 170728

http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-December/056754.html

The proposal and implementation are fully documented here:
https://sites.google.com/a/chromium.org/dev/nativeclient/pnacl/aligned-bundling-support-in-llvm

Tests will follow shortly.

llvm-svn: 170718

llvm-svn: 170716

This is supposed to be a mechanical change with no functional effects.

InstrEmitter can generate all types of MachineOperands which revealed
that MachineInstrBuilder was missing a few methods, added by this patch.

Besides providing a context pointer to MI::addOperand(),
MachineInstrBuilder seems like a better fit for this code.

llvm-svn: 170712

This automatically passes a context pointer to MI->addOperand().

llvm-svn: 170711

llvm-svn: 170708

Add a new attribute, 'noduplicate'. If a function contains a noduplicate call, the call cannot be duplicated - Jump threading, loop unrolling, loop unswitching, and loop rotation are inhibited if they would duplicate the call.

Similarly inlining of the function is inhibited, if that would duplicate the call (in particular inlining is still allowed when there is only one callsite and the function has internal linkage).

llvm-svn: 170704

its only user, is gone.

llvm-svn: 170699

llvm.arm.neon.vsub[su].* intrinsics.

Patch by Pete Couperus <pjcoup@gmail.com>

llvm-svn: 170694

llvm-svn: 170676

llvm-svn: 170675

next few days but it's already tested a lot from test-suite and works fine.
This patch completes almost 100% pass of test-suite for mips 16.

llvm-svn: 170674

on code that has large frames which will not yet compile correctly.

llvm-svn: 170673

llvm-svn: 170672

llvm-svn: 170671

llvm-svn: 170669

This was causing a build failure while trying to build on ppc ubuntu 12.10 with
cmake.

llvm-svn: 170668

llvm-svn: 170667

We use an unused Mips 32 register for the emergency slot
instead of using the stack.

llvm-svn: 170665

information from the rest. 

llvm-svn: 170664

from the rest. 

llvm-svn: 170663

parameter.

llvm-svn: 170661

llvm-svn: 170660

Separate encoding information from the rest.

llvm-svn: 170659

This has undefined behavior, because the classof implementation attempts to
access parts of the not-yet-constructed derived class. Found by clang
-fsanitize=vptr.

llvm-svn: 170658

Separate encoding information from the rest.

llvm-svn: 170657

these patches are tested a lot by test-suite but
make check tests are forthcoming once the next
few patches that complete this are committed.
with the next few patches the pass rate for mips16 is
near 100%

llvm-svn: 170656

physical register $r1 to $r0.

GNU disassembler recognizes an "or" instruction as a "move", and this change
makes the disassembled code easier to read.

Original patch by Reed Kotler.

llvm-svn: 170655

llvm-svn: 170654

behavior and violates the !range constraints we put on loads of this enum.
Found by clang -fsanitize=enum.

llvm-svn: 170653

the end. 

llvm-svn: 170651

information from the rest.

llvm-svn: 170650

from the rest.

llvm-svn: 170649

Separate encoding information from the rest.

llvm-svn: 170648

information from the rest.

llvm-svn: 170647

ArithLogicI as the instruction base classes.

llvm-svn: 170642