Commit Graph

7 Commits

Author SHA1 Message Date
Benjamin Kramer
3ae331d81a SLPVectorizer: When sorting by domination for CSE don't assert on unreachable code.
There is no total ordering if the CFG is disconnected. We don't care if we
catch all CSE opportunities in dead code either so just exclude ignore them in
the assert.

PR19646

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208461 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-09 23:28:49 +00:00
Stephen Lin
39f4e8d9cc Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
This update was done with the following bash script:

  find test/Transforms -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc" $NAME; then
      TEMP=`mktemp -t temp`
      cp $NAME $TEMP
      sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
      while read FUNC; do
        sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
      done
      mv $TEMP $NAME
    fi
  done


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:42:54 +00:00
Nadav Rotem
ac26786846 SLP Vectorizer: Add support for trees with external users.
To support this we have to insert 'extractelement' instructions to pick the right lane.
We had this functionality before but I removed it when we moved to the multi-block design because it was too complicated.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185230 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-28 22:07:09 +00:00
Nadav Rotem
e26fa2dd73 Erase all of the instructions that we RAUWed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184969 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-26 17:16:09 +00:00
Nadav Rotem
29acf7e03a Do not add cse-ed instructions into the visited map because we dont want to consider them as a candidate for replacement of instructions to be visited.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184966 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-26 16:54:53 +00:00
Nadav Rotem
722b0a4d29 SLP Vectorizer: Fix a bug in the code that does CSE on the generated gather sequences.
Make sure that we don't replace and RAUW two sequences if one does not dominate the other.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184674 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-23 21:57:27 +00:00
Nadav Rotem
6959f08f44 SLP Vectorizer: Implement a simple CSE optimization for the gather sequences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184660 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-23 06:15:46 +00:00