Support for Hexagon backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154691 91177308-0d34-0410-b5e6-96231b3b80d8
Support for Hexagon backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154692 91177308-0d34-0410-b5e6-96231b3b80d8
Reduce malloc traffic in DwarfAccelTable

- 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154694 91177308-0d34-0410-b5e6-96231b3b80d8
Pass to replace tranfer/copy instructions into combine instruction where possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154695 91177308-0d34-0410-b5e6-96231b3b80d8
Add support for Hexagon Architectural feature, New Value Jump.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154696 91177308-0d34-0410-b5e6-96231b3b80d8
Add support to BBVectorize for vectorizing selects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154700 91177308-0d34-0410-b5e6-96231b3b80d8
Remove iostream from New Value Jump.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154703 91177308-0d34-0410-b5e6-96231b3b80d8
Fix X86 codegen for 'atomicrmw nand' to generate *x = ~(*x & y), not *x = ~*x & y.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154705 91177308-0d34-0410-b5e6-96231b3b80d8
Remove old code to strip out unwanted PPC slices for Apple llvmCore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154706 91177308-0d34-0410-b5e6-96231b3b80d8
misched: Added CanHandleTerminators.

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154712 91177308-0d34-0410-b5e6-96231b3b80d8
Enhance BBVectorize to more-properly handle pointer values and vectorize GEPs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154734 91177308-0d34-0410-b5e6-96231b3b80d8
Fix an error in BBVectorize important for vectorizing pointer types.

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).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154735 91177308-0d34-0410-b5e6-96231b3b80d8
Make StringMap's copy ctor non-explicit.

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154737 91177308-0d34-0410-b5e6-96231b3b80d8
Rename "fpaccuracy" metadata to the more generic "fpmath".  That's because I'm
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154744 91177308-0d34-0410-b5e6-96231b3b80d8
There is no need for setIsExact to be public.  Make it private.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154750 91177308-0d34-0410-b5e6-96231b3b80d8
Add the loop unrolling info to ReleaseNotes.html and CREDITS.TXT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154752 91177308-0d34-0410-b5e6-96231b3b80d8
Add VLIW packetizer to ReleaseNotes.html and CREDITS.TXT. Committing patch
by Sundeep Kushwaha.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154754 91177308-0d34-0410-b5e6-96231b3b80d8
Remove trailing whitespace.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154755 91177308-0d34-0410-b5e6-96231b3b80d8
Target/Hexagon: Tweak to fix msvc build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154758 91177308-0d34-0410-b5e6-96231b3b80d8
HexagonCopyToCombine.cpp: Silence two warnings, -Wunused-variable, with -Asserts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154759 91177308-0d34-0410-b5e6-96231b3b80d8