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(Replacing page with '{{CMenu:CTools|}} '''List of static program features available for MILEPOST GCC:''' * [[CTools:MilepostGCC:Documentation:MILEPOST_V2.1|MILEPOST GCC V2.1] * [[CTools:MilepostG...')
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{{CMenu:CTools|}}
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'''List of static program features available in MILEPOST GCC:'''
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'''List of static program features available for MILEPOST GCC:'''
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{| border="1" cellpadding="5" cellspacing="0" |
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* [[CTools:MilepostGCC:Documentation:MILEPOST_V2.1|MILEPOST GCC V2.1]
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* [[CTools:MilepostGCC:Documentation:MILEPOST_V1.0|MILEPOST GCC V1.0]
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| ft1 
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| Number of basic blocks in the method
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| ft2 
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| Number of basic blocks with a single successor
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| ft3 
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| Number of basic blocks with two successors
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| ft4 
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| Number of basic blocks with more then two successors
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| ft5 
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| Number of basic blocks with a single predecessor
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| ft6 
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| Number of basic blocks with two predecessors
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| ft7 
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| Number of basic blocks with more then two predecessors
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| ft8 
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| Number of basic blocks with a single predecessor and a single successor
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| ft9 
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| Number of basic blocks with a single predecessor and two successors
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| ft10
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| Number of basic blocks with a two predecessors and one successor
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| ft11
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| Number of basic blocks with two successors and two predecessors
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| ft12
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| Number of basic blocks with more then two successors and more then two predecessors
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| ft13
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| Number of basic blocks with number of instructions less then 15
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| ft14
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| Number of basic blocks with number of instructions in the interval [15, 500]
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| ft15
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| Number of basic blocks with number of instructions greater then 500
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| ft16
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| Number of edges in the control flow graph
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| ft17
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| Number of critical edges in the control flow graph
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| ft18
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| Number of abnormal edges in the control flow graph
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| ft19
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| Number of direct calls in the method
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| ft20
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| Number of conditional branches in the method
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| ft21
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| Number of assignment instructions in the method
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| ft21
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| Number of unconditional branches in the method
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| ft22
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| Number of binary integer operations in the method
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| ft23
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| Number of binary floating point operations in the method
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| ft24
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| Number of instructions in the method
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| ft25
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| Average of number of instructions in basic blocks
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| ft26
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| Average of number of phi-nodes at the beginning of a basic block
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| ft27
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| Average of arguments for a phi-node
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| ft28
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| Number of basic blocks with no phi nodes
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| ft29
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| Number of basic blocks with phi nodes in the interval [0, 3]
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| ft30
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| Number of basic blocks with more then 3 phi nodes
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| ft31
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| Number of basic block where total number of arguments for all phi-nodes is in greater then 5
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| ft32
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| Number of basic block where total number of arguments for all phi-nodes is in the interval [1, 5]
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| ft33
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| Number of switch instructions in the method
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| ft34
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| Number of unary operations in the method
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| ft35
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| Number of instruction that do pointer arithmetic in the method
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| ft36
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| Number of indirect references via pointers ("*" in C)
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| ft37
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| Number of times the address of a variables is taken ("\&" in C)
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| ft38
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| Number of times the address of a function is taken ("\&" in C)
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| ft39
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| Number of indirect calls (i.e. done via pointers) in the method
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| ft40
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| Number of assignment instructions with the left operand an integer constant in the method
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| ft41
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| Number of binary operations with one of the operands an integer constant in the method
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| ft42
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| Number of calls with pointers as arguments
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| ft42
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| Number of calls with the number of arguments is greater then 4
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| ft44
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| Number of calls that return a pointer
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| ft45
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| Number of calls that return an integer
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| ft46
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| Number of occurrences of integer constant zero
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| ft47
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| Number of occurrences of 32-bit integer constants
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| ft48
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| Number of occurrences of integer constant one
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| ft49
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| Number of occurrences of 64-bit integer constants
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| ft50
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| Number of references of a local variables in the method
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| ft51
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| Number of references (def/use) of static/extern variables in the method
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| ft52
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| Number of local variables referred in the method
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| ft53
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| Number of static/extern variables referred in the method
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| ft54
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| Number of local variables that are pointers in the method
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| ft55
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| Number of static/extern variables that are pointers in the method
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|}
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Mircea Namolaru (IBM) developed the first version of the feature extractor for MILEPOST GCC and Grigori Fursin (INRIA) integrated it within the [[CTools:MilepostGCC|MILEPOST GCC]] and cTuning framework together with the machine learning support to predict good optimizations.
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We are currently extending feature extractor to improve program characterization and mapping with beneficial optimizations.
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* [[CTools:MilepostGCC:StaticFeatures:Extensions|Extensions (on-going)]]
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Revision as of 01:25, 15 March 2010

Navigation: cTuning.org > CTools

List of static program features available for MILEPOST GCC:

  • [[CTools:MilepostGCC:Documentation:MILEPOST_V2.1|MILEPOST GCC V2.1]
  • [[CTools:MilepostGCC:Documentation:MILEPOST_V1.0|MILEPOST GCC V1.0]
Retrieved from "https://ctuning.org/wiki/index.php/CTools:MilepostGCC:StaticFeatures"
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