llvm-6502/lib/Transforms/Vectorize
Hal Finkel 66d1fa6f4b Add a llvm.copysign intrinsic
This adds a llvm.copysign intrinsic; We already have Libfunc recognition for
copysign (which is turned into the FCOPYSIGN SDAG node). In order to
autovectorize calls to copysign in the loop vectorizer, we need a corresponding
intrinsic as well.

In addition to the expected changes to the language reference, the loop
vectorizer, BasicTTI, and the SDAG builder (the intrinsic is transformed into
an FCOPYSIGN node, just like the function call), this also adds FCOPYSIGN to a
few lists in LegalizeVector{Ops,Types} so that vector copysigns can be
expanded.

In TargetLoweringBase::initActions, I've made the default action for FCOPYSIGN
be Expand for vector types. This seems correct for all in-tree targets, and I
think is the right thing to do because, previously, there was no way to generate
vector-values FCOPYSIGN nodes (and most targets don't specify an action for
vector-typed FCOPYSIGN).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188728 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-19 23:35:46 +00:00
..
BBVectorize.cpp BBVectorize: Add initial stores to the write set when tracking uses 2013-08-13 23:34:32 +00:00
CMakeLists.txt SLP Vectorizer: Implement multi-block slp-vectorization. 2013-06-22 21:34:10 +00:00
LLVMBuild.txt
LoopVectorize.cpp Add a llvm.copysign intrinsic 2013-08-19 23:35:46 +00:00
Makefile
SLPVectorizer.cpp PR 16899: Do not modify the basic block using the iterator, but keep the 2013-08-17 11:04:47 +00:00
Vectorize.cpp This patch breaks up Wrap.h so that it does not have to include all of 2013-05-01 20:59:00 +00:00