Manually upgrade the test suite to specify the flag to cttz and ctlz.
authorChandler Carruth <chandlerc@gmail.com>
Mon, 12 Dec 2011 11:59:10 +0000 (11:59 +0000)
committerChandler Carruth <chandlerc@gmail.com>
Mon, 12 Dec 2011 11:59:10 +0000 (11:59 +0000)
commitddbc274169ed4ee0e0ac32ed194b925a180202fe
treea15e94ed378c7e90d4b6985af905b07f82ad8a36
parent2106badea341062643d4e11d6e9975b871fa61b9
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
22 files changed:
test/Analysis/BasicAA/2007-08-05-GetOverloadedModRef.ll
test/CodeGen/ARM/clz.ll
test/CodeGen/ARM/ctz.ll
test/CodeGen/ARM/fold-const.ll
test/CodeGen/Generic/2008-02-04-Ctlz.ll
test/CodeGen/Generic/llvm-ct-intrinsics.ll
test/CodeGen/Mips/2008-08-08-ctlz.ll
test/CodeGen/Mips/2010-11-09-CountLeading.ll
test/CodeGen/Mips/mips64instrs.ll
test/CodeGen/PowerPC/2007-03-24-cntlzd.ll
test/CodeGen/PowerPC/cttz.ll
test/CodeGen/Thumb2/thumb2-clz.ll
test/CodeGen/X86/bmi.ll
test/CodeGen/X86/clz.ll
test/CodeGen/X86/lzcnt.ll
test/CodeGen/X86/vec_ctbits.ll
test/Feature/intrinsics.ll
test/Transforms/ConstProp/2007-11-23-cttz.ll
test/Transforms/InstCombine/bitcount.ll
test/Transforms/InstCombine/intrinsics.ll
test/Transforms/InstCombine/sext.ll
test/Transforms/SCCP/2008-05-23-UndefCallFold.ll