Chris Lattner 588bbbffa1 Improve and elimination. On PPC, for: ...

bool %test(int %X) {
        %Y = and int %X, 8
        %Z = setne int %Y, 0
        ret bool %Z
}

we now generate this:

        rlwinm r2, r3, 0, 28, 28
        srwi r3, r2, 3

instead of this:

        rlwinm r2, r3, 0, 28, 28
        srwi r2, r2, 3
        rlwinm r3, r2, 0, 31, 31

I'll leave it to Nate to get it down to one instruction. :)

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21391 91177308-0d34-0410-b5e6-96231b3b80d8

2005-04-21 06:28:15 +00:00

..

SelectionDAG

Improve and elimination. On PPC, for:

2005-04-21 06:28:15 +00:00

AsmPrinter.cpp

…

BranchFolding.cpp

…

IntrinsicLowering.cpp

…

LiveInterval.cpp

…

LiveInterval.h

…

LiveIntervalAnalysis.cpp

…

LiveIntervalAnalysis.h

…

LiveVariables.cpp

…

MachineBasicBlock.cpp

…

MachineCodeEmitter.cpp

…

MachineFunction.cpp

…

MachineInstr.cpp

…

Makefile

…

Passes.cpp

…

PHIElimination.cpp

…

PhysRegTracker.h

…

PrologEpilogInserter.cpp

…

RegAllocIterativeScan.cpp

…

RegAllocLinearScan.cpp

…

RegAllocLocal.cpp

…

RegAllocSimple.cpp

…

TwoAddressInstructionPass.cpp

…

UnreachableBlockElim.cpp

…

VirtRegMap.cpp

…

VirtRegMap.h

…