Patch by nobled <nobled@dreamwidth.org>

llvm-svn: 154772

llvm-svn: 154771

Use non-vex instructions for SSE4.

llvm-svn: 154770

llvm-svn: 154766

As an example, attach range info to the "invalid instruction" message:

$ clang -arch arm -c asm.c
asm.c:2:11: error: invalid instruction
  __asm__("foo r0");
          ^
<inline asm>:1:2: note: instantiated into assembly here
        foo r0
        ^~~

llvm-svn: 154765

llvm-svn: 154764

llvm-svn: 154761

llvm-svn: 154759

llvm-svn: 154758

llvm-svn: 154755

by Sundeep Kushwaha.

llvm-svn: 154754

llvm-svn: 154752

llvm-svn: 154750

thinking of generalizing it to be able to specify other freedoms beyond accuracy
(such as that NaN's don't have to be respected).  I'd like the 3.1 release (the
first one with this metadata) to have the more generic name already rather than
having to auto-upgrade it in 3.2.

llvm-svn: 154744

Without this gcc doesn't allow us to put a StringMap into a
std::map. Works with clang though.

llvm-svn: 154737

When vectorizing pointer types it is important to realize that potential
pairs cannot be connected via the address pointer argument of a load or store.
This is because even after vectorization, the address is still a scalar because
the address of the higher half of the pair is implicit from the address of the
lower half (it need not be, and should not be, explicitly computed).

llvm-svn: 154735

llvm-svn: 154734

This is a special flag for targets that really want their block
terminators in the DAG. The default scheduler cannot handle this
correctly, so it becomes the specialized scheduler's responsibility to
schedule terminators.

llvm-svn: 154712

llvm-svn: 154706

llvm-svn: 154705

llvm-svn: 154703

llvm-svn: 154700

llvm-svn: 154696

llvm-svn: 154695

- Don't copy offsets into HashData, the underlying vector won't change once the table is finalized.
- Allocate HashData and HashDataContents in a BumpPtrAllocator.
- Allocate string map entries in the same allocator.
- Random cleanups.

llvm-svn: 154694

llvm-svn: 154692

llvm-svn: 154691

llvm-svn: 154689

llvm-svn: 154687

targets so if the branch target has the high bit set it does not get printed as:
	 beq     0xffffffff8008c404

llvm-svn: 154685

their argument as "escape" points for objc_retainBlock optimization.
This fixes rdar://11229925.

llvm-svn: 154682

As has been suggested by Duncan and others, Early-CSE and GVN should
do similar redundancy elimination, but Early-CSE is much less expensive.
Most of my autovectorization benchmarks show a performance regresion, but
all of these are < 0.1%, and so I think that it is still worth using
the less expensive pass.

llvm-svn: 154673

For example, if llc cannot be found, the full python stacktrace is displayed
and no interesting information are provided.
+ fail the process when an exception occurs

llvm-svn: 154665

llvm-svn: 154661

Silence various build warnings from Hexagon backend that show up in release builds. Mostly converting 'assert(0)' to 'llvm_unreachable' to silence warnings about missing returns. Also fold some variable declarations into asserts to prevent the variables from being unused in release builds.

llvm-svn: 154660

Fix target specific intrinsic handling to adjust intrinsic number before doing attribute table lookup. Also fix attribute table lookup to handle 'invalid' intrinsic correctly. Fixes PR12542

llvm-svn: 154658

Remove getElfArchType from ELF.h. It's only used in ELFObjectFile.cpp and there's already a copy there. ELF.h was hiding the one there and causing an unused function warning.

llvm-svn: 154657

library return value optimization for phi uses. Even when the
phi itself is not dominated, the specific use may be dominated.

llvm-svn: 154647

obviously cannot know that this code is present, let alone used. So prevent the
internalize pass from internalizing those global values which code-gen may
insert.

llvm-svn: 154645

optimizing autorelease calls on phi nodes with null operands.
This fixes rdar://11207070.

llvm-svn: 154642