Add node and enum for mips tail call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166318 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Make the branch nodes used in jump instructions a template parameter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166337 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Add tail call instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166338 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Delete MipsFunctionInfo::MaxCallFrameSize which is no longer used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166339 91177308-0d34-0410-b5e6-96231b3b80d8
revert r166264 because the LTO build is still failing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166340 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Fix TAILCALL's operand node type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166341 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Add code to do tail call optimization.

Currently, it is enabled only if option "enable-mips-tail-calls" is given and
all of the callee's arguments are passed in registers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166342 91177308-0d34-0410-b5e6-96231b3b80d8
Grammar-o.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166343 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Use 64-bit registers to return an sret pointer if target ABI is N64.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166344 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-inline asm] Reset the opcode prior to parsing a statement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166349 91177308-0d34-0410-b5e6-96231b3b80d8
1. Remove noreturn attribute from __builtin_debugtrap().
  (The change at Clang side was committed in r166345)

2. Cosmetic change in order to conform to coding standards. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166350 91177308-0d34-0410-b5e6-96231b3b80d8
Vectorizer: Add support for loop reductions.

For example:

  for (i=0; i<n; i++)
   sum += A[i] +  B[i] + i;



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166351 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-inline asm] Continue parsing even when we're in an ignore block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166352 91177308-0d34-0410-b5e6-96231b3b80d8
LoopVectorize: Keep the IRBuilder on the stack.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166354 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-inline asm] If the state of the parser is ignore, then don't parse the
inline assembly.  Also make sure the remove the ignored statements from the IR.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166357 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-inline asm] Rename AsmOpRewrite to just AsmRewrite to be more generic. No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166360 91177308-0d34-0410-b5e6-96231b3b80d8
Vectorization docs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166364 91177308-0d34-0410-b5e6-96231b3b80d8
Vectorizer: refactor the memory checks to a new function. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166366 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166367 91177308-0d34-0410-b5e6-96231b3b80d8
Vectorize: teach cavVectorizeMemory to distinguish between A[i]+=x and A[B[i]]+=x.
If the pointer is consecutive then it is safe to read and write. If the pointer is non-loop-consecutive then
it is unsafe to vectorize it because we may hit an ordering issue.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166371 91177308-0d34-0410-b5e6-96231b3b80d8