Commit Graph

3 Commits

Author SHA1 Message Date
Michael Liao
f966e4e5b3 Add wider vector/integer support for PR12312
- Enhance the fix to PR12312 to support wider integer, such as 256-bit
  integer. If more than 1 fully evaluated vectors are found, POR them
  first followed by the final PTEST.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163832 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13 20:24:54 +00:00
NAKAMURA Takumi
2f820a5d64 llvm/test/CodeGen/X86/pr12312.ll: Add -mtriple=x86_64-unknown-unknown.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162736 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28 04:04:29 +00:00
Michael Liao
dbf8b5be97 Fix PR12312
- Add a target-specific DAG optimization to recognize a pattern PTEST-able.
  Such a pattern is a OR'd tree with X86ISD::OR as the root node. When
  X86ISD::OR node has only its flag result being used as a boolean value and
  all its leaves are extracted from the same vector, it could be folded into an
  X86ISD::PTEST node.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162735 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28 03:34:40 +00:00