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and instruction. This allows us to compile stuff like this: bool %X(int %X) { %Y = add int %X, 14 %Z = setne int %Y, 12345 ret bool %Z } to this: _X: cmpl $12331, 4(%esp) setne %al movzbl %al, %eax ret instead of this: _X: cmpl $12331, 4(%esp) setne %al movzbl %al, %eax andl $1, %eax ret This occurs quite a bit with the X86 backend. For example, 25 times in lambda, 30 times in 177.mesa, 14 times in galgel, 70 times in fma3d, 25 times in vpr, several hundred times in gcc, ~45 times in crafty, ~60 times in parser, ~140 times in eon, 110 times in perlbmk, 55 on gap, 16 times on bzip2, 14 times on twolf, and 1-2 times in many other SPEC2K programs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25901 91177308-0d34-0410-b5e6-96231b3b80d8 |
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.. | ||
SelectionDAG | ||
AsmPrinter.cpp | ||
BranchFolding.cpp | ||
DwarfWriter.cpp | ||
ELFWriter.cpp | ||
IntrinsicLowering.cpp | ||
LiveInterval.cpp | ||
LiveIntervalAnalysis.cpp | ||
LiveVariables.cpp | ||
MachineBasicBlock.cpp | ||
MachineCodeEmitter.cpp | ||
MachineDebugInfo.cpp | ||
MachineFunction.cpp | ||
MachineInstr.cpp | ||
Makefile | ||
Passes.cpp | ||
PHIElimination.cpp | ||
PhysRegTracker.h | ||
PrologEpilogInserter.cpp | ||
RegAllocLinearScan.cpp | ||
RegAllocLocal.cpp | ||
RegAllocSimple.cpp | ||
TwoAddressInstructionPass.cpp | ||
UnreachableBlockElim.cpp | ||
VirtRegMap.cpp | ||
VirtRegMap.h |