Pete Cooper 552f3d8472 StringRef::copy shouldn't allocate anything for length 0 strings. ...

The BumpPtrAllocator currently doesn't handle zero length allocations well.
The discussion for how to fix that is ongoing.  However, there's no need
for StringRef::copy to actually allocate anything here anyway, so just
return StringRef() when we get a zero length copy.

Reviewed by David Blaikie

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264201 91177308-0d34-0410-b5e6-96231b3b80d8

2016-03-23 21:49:31 +00:00

..

llvm

StringRef::copy shouldn't allocate anything for length 0 strings.

2016-03-23 21:49:31 +00:00

llvm-c

Expose IRBuilder::CreateAtomicCmpXchg as LLVMBuildAtomicCmpXchg in the C API.

2016-03-19 21:28:28 +00:00