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4 Commits

Author SHA1 Message Date
Manman Ren
ff6222ef2f TBAA: remove !tbaa from testing cases if not used. 
This will make it easier to turn on struct-path aware TBAA since the metadata
format will change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180745 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-29 22:58:55 +00:00
Benjamin Kramer
74a4533a42 Remove the old CodePlacementOpt pass. 
It was superseded by MachineBlockPlacement and disabled by default since LLVM 3.1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178349 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-03-29 17:14:24 +00:00
Jakob Stoklund Olesen
9243c4f7c5 Pass the right sign to TLI->isLegalICmpImmediate. 
LSR can fold three addressing modes into its ICmpZero node:

  ICmpZero BaseReg + Offset      => ICmp BaseReg, -Offset
  ICmpZero -1*ScaleReg + Offset  => ICmp ScaleReg, Offset
  ICmpZero BaseReg + -1*ScaleReg => ICmp BaseReg, ScaleReg

The first two cases are only used if TLI->isLegalICmpImmediate() likes
the offset.

Make sure the right Offset sign is passed to this method in the second
case. The ARM version is not symmetric.

<rdar://problem/11184260>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154079 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-05 03:10:56 +00:00
Jakob Stoklund Olesen
c5041cac7d Implement ARMBaseInstrInfo::commuteInstruction() for MOVCCr. 
A MOVCCr instruction can be commuted by inverting the condition. This
can help reduce register pressure and remove unnecessary copies in some
cases.

<rdar://problem/11182914>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154033 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-04 18:23:42 +00:00