llvm-svn: 176253

Shadow checks are disabled and memory loads always produce fully initialized
values in functions that don't have a sanitize_memory attribute. Value and
argument shadow is propagated as usual.

This change also updates blacklist behaviour to match the above.

llvm-svn: 176247

Most of the tests that behave differently on llvm-arm-linux buildbot
did so becase the triple wasn't set correctly to armv5, so we can
revert most of the special behaviour added previously. Some tests
still need the special treatment, though.

llvm-svn: 176243

llvm-svn: 176240

Patch by Journeyer J. Joh!

llvm-svn: 176235

llvm-svn: 176228

[PathV2] In llvm::sys::fs::unique_file, make sure it doesn't fall into an infinite loop by constantly trying
to create the parent path.

This can happen if the path is a relative filename and the current directory was removed.
Thanks to Daniel D. for the hint in fixing it.

llvm-svn: 176226

This problem is exposed by r171325 which is already reverted. It is rather
hard to fabricate a testing case without it.

r171325 should *NOT* be resurrected as it has a potential problem although 
this problem dosen't directly contribute to PR14988.

The bug is tracked by:
  - rdar://13063553, and
  - http://llvm.org/bugs/show_bug.cgi?id=14988

Thank Arnold for coming up a better solution to this problem. After
comparing this solution and my original proposal, I decided to ditch mine.

llvm-svn: 176225

a few lines above.

llvm-svn: 176224

llvm-svn: 176223

llvm-svn: 176222

definition DIE (TAG_variable), and put AT_MIPS_linkage_name to TAG_member when
DarwinGDBCompat is true.

Darwin GDB needs AT_MIPS_linkage_name at both places to work.

Follow-up patch to r176143.
rdar://problem/13291234

llvm-svn: 176220

llvm-svn: 176218

The FastISEL should be fast. But when we record statistics we use atomic operations to increment the counters.
This patch disables the counters on non-debug builds. This reduces the runtime of SelectionDAGISel::SelectCodeCommon by ~5%.

llvm-svn: 176214

Test case is missing due to it not being reachable through the current tools
but out of tree code such as the sample at
http://llvm.org/docs/tutorial/LangImpl4.html

Patch by Peng Cheng <gm4cheng@gmail.com>

llvm-svn: 176213

rdar://13306723

llvm-svn: 176212

llvm-svn: 176208

llvm-svn: 176204

llvm-svn: 176199

llvm-svn: 176197

llvm-svn: 176195

llvm-svn: 176193

llvm-svn: 176192

This fixes an issue where trying to assemlbe valid ADR instructions would cause
LLVM to hit a failed assertion.

Patch by Keith Walker.

llvm-svn: 176189

This properly asks TargetLibraryInfo if a call is available and if it is, it
can be translated into the corresponding LLVM builtin. We don't vectorize sqrt()
yet because I'm not sure about the semantics for negative numbers. The other
intrinsic should be exact equivalents to the libm functions.

Differential Revision: http://llvm-reviews.chandlerc.com/D465

llvm-svn: 176188

change!

llvm-svn: 176176

passing a null pointer to the function name in to GCDAProfiling, and add another
switch onto GCOVProfiling.

llvm-svn: 176173

not llvm.

llvm-svn: 176172

llvm-svn: 176171

For each function that we optimize we initialize a new list of lib functions. For each function name we malloc memory. This patch changes the Libcall map to use BumpPtrAllocator. Now we malloc only once. This speeds up instcombine by a few % on a large c++ program.

llvm-svn: 176170

clean up this code a tiny bit. No functionality change.

llvm-svn: 176168

llvm-svn: 176166

llvm-svn: 176165

It will only be used for Mips 16 at this time.
 

llvm-svn: 176161

PR15262 reported a bug where the following instruction:

  i8 getelementptr inbounds i8* bitcast ([4 x i8] addrspace(12)* @buf to i8*),
                                i32 2

was getting folded into:

  addrspace(12)* getelementptr inbounds ([4 x i8] addrspace(12)* @buf, i32 0,
                                        i32 2)

This caused instcombine to crash because the original instruction and
the folded instruction have different types.  The issue was fixed by
disallowing bitcasts between different address spaces to be folded away.

llvm-svn: 176156

CurrentCallSite to avoid an assertion failure:
assert(MMI.getCurrentCallSite() == 0 && "Overlapping call sites!");

rdar://problem/13228754

llvm-svn: 176154

definition DIE, to make old GDB happy.

We have a regression for old GDB when Clang uses DW_TAG_member to declare
static members inside a class, instead of DW_TAG_variable. This patch will fix
this regression.

rdar://problem/13291234

llvm-svn: 176143

enhancement done the trivial way; by extending inputs and truncating outputs 
which is addequate for targets with little or no support for integer arithmetic
on integer types less than 32 bits.

llvm-svn: 176139

llvm-svn: 176136

to NULL and use asserts to check in relevant places.

llvm-svn: 176134