This reverts commit r246379. It seems that the commit was not the culprit,
and the bot will be investigated for instability.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246380 91177308-0d34-0410-b5e6-96231b3b80d8
This reverts commit r246371, as it cause a rather obscure bug in AArch64
test-suite paq8p (time outs, seg-faults). I'll investigate it before
reapplying.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246379 91177308-0d34-0410-b5e6-96231b3b80d8
Value *getSplatValue(Value *Val);
It complements the CreateVectorSplat(), which creates 2 instructions - insertelement and shuffle with all-zero mask.
The new function recognizes the pattern - insertelement+shuffle and returns the splat value (or nullptr).
It also returns a splat value form ConstantDataVector, for completeness.
Differential Revision: http://reviews.llvm.org/D11124
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246371 91177308-0d34-0410-b5e6-96231b3b80d8
The following functions are moved from the LoopVectorizer to VectorUtils:
- getGEPInductionOperand
- stripGetElementPtr
- getUniqueCastUse
- getStrideFromPointer
These used to be static functions in LoopVectorize, but will also be used by
the upcoming loop versioning LICM transformation.
Patch by Ashutosh Nema!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241980 91177308-0d34-0410-b5e6-96231b3b80d8
