Chris Lattner 1d6373c1af teach selection dag mask tracking about the fact that select_cc operates like ... select. Also teach it that the bit count instructions can only set the low bits of the result, depending on the size of the input. This allows us to compile this: int %eq0(int %a) { %tmp.1 = seteq int %a, 0 ; <bool> [#uses=1] %tmp.2 = cast bool %tmp.1 to int ; <int> [#uses=1] ret int %tmp.2 } To this: _eq0: cntlzw r2, r3 srwi r3, r2, 5 blr instead of this: _eq0: cntlzw r2, r3 rlwinm r3, r2, 27, 31, 31 blr when setcc is marked illegal on ppc (which restores parity to non-illegal setcc). Thanks to Nate for pointing this out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23013 91177308-0d34-0410-b5e6-96231b3b80d8		2005-08-24 16:46:55 +00:00
..
SelectionDAG	teach selection dag mask tracking about the fact that select_cc operates like	2005-08-24 16:46:55 +00:00
AsmPrinter.cpp
BranchFolding.cpp
ELFWriter.cpp
IntrinsicLowering.cpp
LiveInterval.cpp
LiveInterval.h
LiveIntervalAnalysis.cpp	Simplify this code by using higher-level LiveVariables methods	2005-08-23 22:51:41 +00:00
LiveIntervalAnalysis.h
LiveVariables.cpp	Implement LiveVariables.h change	2005-08-24 00:09:33 +00:00
MachineBasicBlock.cpp
MachineCodeEmitter.cpp
MachineFunction.cpp
MachineInstr.cpp
Makefile
Passes.cpp
PHIElimination.cpp	adjust to new live variables interface	2005-08-23 23:42:17 +00:00
PhysRegTracker.h
PrologEpilogInserter.cpp
RegAllocIterativeScan.cpp
RegAllocLinearScan.cpp	Keep track of which registers are related to which other registers.	2005-08-23 22:27:31 +00:00
RegAllocLocal.cpp	adjust to new live variables interface	2005-08-23 23:42:17 +00:00
RegAllocSimple.cpp
TwoAddressInstructionPass.cpp
UnreachableBlockElim.cpp
VirtRegMap.cpp
VirtRegMap.h