Check for null pointer before dereferencing. A careless typo on my part.
I don't know why this did not show up earlier. This code has been
around for ages. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197119 91177308-0d34-0410-b5e6-96231b3b80d8
Add missing escape characters to the new Regex::escape() function

The old AddFixedStringToRegEx() it was based on got away with this for the
longest time, but the problem became easy to spot after the cleanup in r197096.

Also add a quick unit test to cover regex escaping.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197121 91177308-0d34-0410-b5e6-96231b3b80d8
Swap around EXPECT_EQ() arguments orders for more natural gtest Failure messages

Somewhat counterintuitively the first arg in gtest is treated as the
expectation.

No change to the tests themselves.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197124 91177308-0d34-0410-b5e6-96231b3b80d8
[AArch64]Fix the problem that AArch64 backend fails to select scalar_to_vector of vector types having more than one element.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197135 91177308-0d34-0410-b5e6-96231b3b80d8
typo in comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197136 91177308-0d34-0410-b5e6-96231b3b80d8
Remove some dead code


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197144 91177308-0d34-0410-b5e6-96231b3b80d8
Added new X86 patterns to select SSE scalar fp arithmetic instructions from
a vector packed single/double fp operation followed by a vector insert.

The effect is that the backend coverts the packed fp instruction
followed by a vectro insert into a SSE or AVX scalar fp instruction.

For example, given the following code:
   __m128 foo(__m128 A, __m128 B) {
     __m128 C = A + B;
     return (__m128) {c[0], a[1], a[2], a[3]};
   }

 previously we generated:
   addps %xmm0, %xmm1
   movss %xmm1, %xmm0
 
 we now generate:
   addss %xmm1, %xmm0



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197145 91177308-0d34-0410-b5e6-96231b3b80d8
PowerPC: add Linux triple to TLS tests

The tests were failing on OS X.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197146 91177308-0d34-0410-b5e6-96231b3b80d8
[cleanup] Remove trailing whitespace before I start changing this file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197149 91177308-0d34-0410-b5e6-96231b3b80d8
Return a StringRef from getHostCPUName.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197158 91177308-0d34-0410-b5e6-96231b3b80d8
[AArch64] Removed unnecessary copy patterns with v1fx types.

- Copy patterns with float/double types are enough.
- Fix typos in test case names that were using v1fx.
- There is no ACLE intrinsic that uses v1f32 type.  And there is no conflict of
  neon and non-neon ovelapped operations with this type, so there is no need to
  support operations with this type.
- Remove v1f32 from FPR32 register and disallow v1f32 as a legal type for
  operations.

Patch by Ana Pazos!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197159 91177308-0d34-0410-b5e6-96231b3b80d8
Switch to the new MingW ABI.

GCC 4.7 changed the MingW ABI. On the LLVM side it means that sret functions
don't pop the stack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197163 91177308-0d34-0410-b5e6-96231b3b80d8
Convert the other getHostByName implementations to StringRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197166 91177308-0d34-0410-b5e6-96231b3b80d8
Fix Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197168 91177308-0d34-0410-b5e6-96231b3b80d8
Use "a" instead of "a0" in DataLayout.

It means exactly the same and is just a bit shorter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197169 91177308-0d34-0410-b5e6-96231b3b80d8
Simplify the SystemZ datalayout string.

Reviewed by Richard Sandiford.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197170 91177308-0d34-0410-b5e6-96231b3b80d8
Simplify the datalayout string of ARM and AArch64.

No functionality change.

Reviewed by Tim Northover.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197172 91177308-0d34-0410-b5e6-96231b3b80d8
Removed llvm-cov.test from Other folder.

More comprehensive llvm-cov tests were added to tools/llvm-cov.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197175 91177308-0d34-0410-b5e6-96231b3b80d8
Initialize the barrier pass llvm::initializeIPO

The barrier pass is a temporary hack, and should go away soon. Nevertheless, if
we don't initialize it, then opt will not understand -barrier, and this will
break bugpoint (because when it dumps the passes from the default pass manager
-barrier will be there).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197177 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a use-after-free error in GlobalOpt CleanupConstantGlobalUsers

GlobalOpt's CleanupConstantGlobalUsers function uses a worklist array to manage
constant users to be visited. The pointers in this array need to be weak
handles because when we delete a constant array, we may also be holding a
pointer to one of its elements (or an element of one of its elements if we're
dealing with an array of arrays) in the worklist.

Fixes PR17347.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197178 91177308-0d34-0410-b5e6-96231b3b80d8