Commit Graph

8 Commits

Author SHA1 Message Date
Hal Finkel
dc8efbae14 Fix PowerPC/cttz.ll to specify a cpu (and use FileCheck)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178472 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-01 16:31:56 +00:00
Chandler Carruth
ddbc274169 Manually upgrade the test suite to specify the flag to cttz and ctlz.
I followed three heuristics for deciding whether to set 'true' or
'false':

- Everything target independent got 'true' as that is the expected
  common output of the GCC builtins.
- If the target arch only has one way of implementing this operation,
  set the flag in the way that exercises the most of codegen. For most
  architectures this is also the likely path from a GCC builtin, with
  'true' being set. It will (eventually) require lowering away that
  difference, and then lowering to the architecture's operation.
- Otherwise, set the flag differently dependending on which target
  operation should be tested.

Let me know if anyone has any issue with this pattern or would like
specific tests of another form. This should allow the x86 codegen to
just iteratively improve as I teach the backend how to differentiate
between the two forms, and everything else should remain exactly the
same.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146370 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-12 11:59:10 +00:00
Dan Gohman
fce288fc91 Eliminate more uses of llvm-as and llvm-dis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81293 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09 00:09:15 +00:00
Tanya Lattner
cfab3da46e Remove llvm-upgrade and update tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47325 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-19 08:07:33 +00:00
Reid Spencer
c58ef0185b For PR1319: Upgrade to new test harness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36087 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-15 21:17:45 +00:00
Reid Spencer
ee45c55fe6 Upgrade intrinsic function calls
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32134 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02 20:38:37 +00:00
Reid Spencer
69ccadd753 Use the llvm-upgrade program to upgrade llvm assembly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32115 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02 04:23:10 +00:00
Nate Begeman
e066d68eb4 Add testcase for legalizing ISD::CTTZ efficiently. On PPC, ctlz(int) is
now codegen'd as this:

        addi r2, r3, -1
        andc r2, r2, r3
        cntlzw r2, r2
        subfic r3, r2, 32
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21881 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 23:45:54 +00:00