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| | PL/SQL help and tutorial |
 | | These objects are used to store and manipulate block level data. | | | PL/SQL is structured into blocks and can use conditional statements, loops and branches to control program flow. | | | Blocks may be stored within an Oracle database as procedures, functions, packages (a group of blocks) and triggers. |
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http://www.ilook.fsnet.co.uk/ora_sql/sqlplus03.htm
(502 words)
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| | Control Flow Graph |
| | At the moment, the basic block boundaries are maintained transparently during emitting instruction, so rarely there is need to move them manually (such as in case someone wants to output instruction outside basic block explicitly). | | | The extension block is used for storage of other important data which may be emited by future versions of gcc. | | | The probability that control flow arrives via given edge to the destination basic block is called reverse probability and is not directly represented, but it may be easily computed from frequencies of basic blocks. |
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http://www.ucw.cz/~hubicka/papers/proj/node18.html
(2664 words)
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| | [No title] |
| | An expression’s birthpoint is the first block in the control flow graph at which the expression can be computed and the value computed is guaranteed to be the same as in the original program. | | | Suppose the optimizer moves an intermediate statement that defines a global variable from a block that may never be executed for some set of input data into a dominator block that is executed at least once for the same input data. | | | Their technique is based upon fast computation of the idef set for each basic block of the control flow graph. |
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http://www.research.compaq.com/wrl/DECarchives/DTJ/DTJT05/DTJT05SC.TXT
(7595 words)
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| | EPAA Vol. 7 No. 29 Veal & Schreiber: Block Scheduling Effects |
| | Thus, the argument that block scheduling would allow more students to take more mathematics classes is true, the impact of the increased learning is not justified due to the lack of time and curriculum in the mathematics classes due to the shorter class hours in the block format. | | | Both of the sub-areas for reading were analyzed and determined to be non-significant by schedule type, and thus their results are not reported. | | | Even though these students lost content in the block format, they made up for the lose with increased amount of mathematics content at higher levels. |
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http://epaa.asu.edu/epaa/v7n29.html
(3558 words)
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| | Basic Block Machine Work |
| | This fixture makes certain that the block is decked or squared flat and is machined 90 degrees to the centerline of the crankshaft and camshaft. | | | In this "premier" block, Pink machines an oil groove into the main saddles of the block for better oiling to the main bearing; that costs $115. | | | Remember, the work done to your block is only as good as the shop performing the task, so ask your fellow racers for recommendations. |
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http://www.circletrack.com/howto/4661
(1985 words)
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| | [No title] |
| | (Each basic block in the flow graph must have at least one entry in the segment table.) The LCM algorithm is then run over the flow graph to determine where to place the sets to the highest-priority value in respect of first the first insn in any one block. | | | Since the EXIT block is never added to the worklist, we will neither use nor compute LATERIN for the exit block. | | | If the optimistic setting of LATER on that edge was incorrect (for example the expression is ANTLOC in a block within the loop) then this algorithm will detect it when we process the block at the head of the optimistic edge. |
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http://www.opensource.apple.com/darwinsource/10.3/gcc_os-1256/gcc/lcm.c
(3914 words)
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| | Designing a Basic Block Profiler |
| | A basic block is a maximal sequence of consecutive statements in which flow of control enters at the beginning and leaves at the end without halt or the possibility of branching except at the end. | | | The entities include an array of counters (one counter for each basic block), an array of line numbers (one line number for each counter), and an array of file names (one file name for each counter, at least conceptually), and an entity which points to all the other entities and contains other miscellaneous information. | | | As it parses each input token, it emits it's associated text (including whitespace) to the output stream associated with the instrumented source. |
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http://www.cs.binghamton.edu/~zdu/zprof/zprof/NOTES.html
(3007 words)
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| | IMCC optimizer - |
| | Basic blocks are the most important structure for optimization. | | | Basic_block structures are stored as an array of pointers, each with an index that denotes their position in the array. | | | Loop_info stores the header, preheader, exit blocks, and depth of the loop. |
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http://www.parrotcode.org/docs/imcc/optimizer.html
(574 words)
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| | Extending Value Reuse to Basic Blocks with Compiler Support |
| | About 16 to 41 percent of all the basic blocks are simply repeating earlier calculations when the programs are compiled with the -O2 optimization level in the GCC compiler. | | | For the SPEC benchmark programs evaluated, 90 percent of the basic blocks have fewer than four register inputs, five live register outputs, four memory inputs, and two memory outputs. | | | We investigate the input and output values of basic blocks and find that these values can be quite regular and predictable. |
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http://csdl2.computer.org/persagen/DLAbsToc.jsp?resourcePath=/dl/trans/tc/&toc=comp/trans/tc/2000/04/t4toc.xml&DOI=10.1109/12.844346
(709 words)
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| | The Basic Block Cache |
| | It is based on storing a basic block as a cache entity rather than a cache block (or line) as in conventional caches. | | | We are examining the performance of possible Bcache implementations for the sparc architecture using an instruction-set simulator, SPARCSim, and cache simulators. | | | A number of cache architectures have been presented in the past to improve the performance of computer system. |
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http://www.nd.edu/~nkalla/research/bcache/bcache.html
(365 words)
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| | [No title] |
| | Creating basic blocks is easy: - Scan instructions for LEADERS A leader is: - the first instruction - a label - an instruction that follows a branch - Each leader starts a basic block which ends at the instruction before the next leader There are cases when the definition of a leader is different. | | | Optimizations on Basic Blocks: (History: Most optimizations we cover in this course are global optimizations. | | | They often started out as local optimizations on basic blocks) Local CSE (13.1.1) is an example: Scan instructions maintaining a table of 5-tuples: |
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http://www.cs.cmu.edu/afs/cs/academic/class/15745-s01/www/lectures/lect0124.txt
(722 words)
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| | BASIC SOFTWARE SCHEDULING |
| | The data flow graph is constructed by scanning the basic block, either from top to bottom or bottom to top, noting which instructions use data that is produced by other instructions in the basic block. | | | If any instruction in the block is executed, then all instructions in the block are. | | | A control flow graph is a directed graph showing the possible execution paths between basic blocks in the program. |
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http://www.ee.pdx.edu/~oks/tutorial/chapter10.html
(1261 words)
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| | COMP 430: Project #2 |
| | Both the source and destination of the optimizer is structured in such a way that a C compiler can be used as the machine-dependent code generator. | | | Although the purpose of this project is to begin the exploration of optimization techniques, it will also reinforce your knowledge of program analysis. | | | The purpose of this project is to start you off on developing a simple optimizer. |
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http://www.csun.edu/~steve/COMP_430/Project2
(735 words)
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| | ALTO -- A Link-Time Optimizer for the DEC Alpha |
| | Gprel32s indicate the beginning of a basic block that is target of a switch statement (computed jump). | | | A function (loop, block) object specification can be either the symbol "+", indicating that all functions (loops, blocks) are to be displayed; or a comma-separated list of function (loop, block) object selectors. | | | Most of the time the refquad is used to describe a function address which is used in an non-computed jump, it would be nice to know which ones are used for computed jumps. |
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http://www.cs.arizona.edu/alto/Doc/alto.html
(5929 words)
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| | Basic Block Reordering - GNU Project - Free Software Foundation (FSF) |
| | Second, the code after "je.L5" up to and including the "jmp.L2" statement pollutes the instruction cache with code that is usually not executed. | | | GCC will use dynamic branch predictions from profiling or static branch predictions to drive the block reordering algorithm. | | | Without block reordering those statements will be inside the loop in the assembly output: |
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http://www.gnu.org/software/gcc/news/reorder.html
(435 words)
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| | [No title] |
| | By convention, blocks are kept in the order of the original code for 0..X, with an extra bBlock at X+1 (with 0 instructions) to represent the end of the procedure. | | | Code in the compiler will display the control-flow and data-flow information you compute for each program, and use it to warn of possible references to uninitialized variables. | | | The existing code builds a simplified control flow graph (CFG), treating every statement as a basic block, and assuming all statements are executed in order. |
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http://www.cs.umd.edu/class/fall2002/cmsc430/proj5.txt
(401 words)
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| | Basic Block Analysis |
| | A Basic Block is a the sequence of (1 or more)consecutive instructions, starting with a unique entry instruction (header, aka leader), ending with an exit instruction that leads to another BB or ends the whole program (e.g. | | | This chapter outlines a two-pass algorithm for partitioning a sequence of machine instructions into Basic Blocks (BB). | | | The instruction indexed start effectively is the destination of an invisible branch, executed by the Operating System. |
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http://www.cs.pdx.edu/~herb/cs410f99/bblock.htm
(1491 words)
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| | Using Blocks and Paths |
| | Sometimes a block produces an error when it evaluates, in which case the block turns yellow and an error message appears. | | | When you manually evaluate a block, the block uses its existing input values. | | | Once the block is locked, only the manual override value is propagated downstream. |
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http://www.cs.fsu.edu/g2/nol/using_p2.htm
(1735 words)
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| | Block Merging |
| | Some compilers limit optimizations to basic blocks, and benefit if the program graph can be transformed into a smaller number of larger basic blocks. | | | Even compilers that optimize an entire function or program graph generally benefit from this transformation. | | | int a; int b; void f (int x, int y) { goto L1; /* basic block 1 */ L2: /* basic block 2 */ b = x + y; goto L3; L1: /* basic block 3 */ a = x + y; goto L2; L3: /* basic block 4 */ return; } |
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http://www.nullstone.com/htmls/category/merge.htm
(283 words)
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| | SALTO Primitives |
| | A non-zero return value is the position of the instruction in the basic block. | | | Global functions provide the means of manipulating the list of procedures appearing in a program, extracting the name of the target architecture, and finding the position of an object (CFG, basic block, instruction) in its container (program, CFG, or basic block). | | | If the instruction has not been found in the abstract representation of the program, an error message is generated. |
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http://www.irisa.fr/caps/projects/Salto/DOC/NODE18.HTM
(2327 words)
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| | A Preliminary Exploration of Optimized Stack Code Generation |
| | Further reduction is not possible if we assume that the example is a complete basic code block, because the stack must be empty at the start and end of the block. | | | There seems to have been little work on optimizing stack usage at the basic block level (code sequences containing no branches nor labels) or the global level (whole-procedure). | | | Although significantly larger programs must be used to make conclusive statements about performance, these programs are sufficiently complex and varied at the basic block level to form a starting point for experimentation. |
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http://www.ece.cmu.edu/~koopman/stack_compiler/stack_co.html
(3161 words)
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| | [No title] |
| | Profile generation is optimized, so that not all arcs in the basic block graph need instrumenting. | | | Since the code that finds spanning trees starts with block 0, low numbered edges are put on the spanning tree in preference to high numbered edges. | | | The BBG file contains a count of the blocks, followed by edge information, for every edge in the graph. |
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http://www.opensource.apple.com/darwinsource/10.3.3/gcc-1495/gcc/profile.c
(2902 words)
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| | [No title] |
| | Both END and HEAD can be NULL to create basic block at the end of INSN chain. | | | If we had a conditional branch to the next instruction when find_basic_blocks was called, then there will only be one out edge for the block which ended with the conditional branch (since we do not create duplicate edges). |
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http://www.opensource.apple.com/darwinsource/10.3.2/gcc-1495/gcc/cfgrtl.c
(5695 words)
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| | 3.3 Synchro Basic Block |
| | These blocks have a unique activation input port; they route their input activation signals to one of their activation outputs. | | | Synchro Basic Blocks (SBB) generate output activation signals that are synchronized with their input activation signals. |
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http://pauillac.inria.fr/cdrom/www/scilab/doc/scicos/node9.html
(49 words)
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| | [No title] |
| | Additional data flow information that is too bulky to record is generated during the analysis, and is used at that time to create autoincrement and autodecrement addressing. | | | Set must_rescan if it needs to be thought about instruction by instruction (that is, if any additional reg that is live at the end now but was not live there before is one of the significant regs of this basic block). | | | */ /* Record where all the blocks start and end and their depth in loops. |
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http://www.mit.edu/afs/dev/software/gct/src/flow.c
(3502 words)
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| | Gmane -- Mail To News And Back Again |
| | ALWAYS_EXECUTED is true if the basic block is always executed, unless the program ends due to a function ! | | | Rhs of the definition may be considered for - moving if INVAR_RHS is true. | | | df_bitmaps_alloc (df, NULL, aflags); /* Set the LUIDs for each specified basic block. |
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http://article.gmane.org/gmane.comp.gcc.patches/57675
(8265 words)
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| | les activités scientifiques |
| | Based on the basic blocks and on syntactic information gathered during compilation, we build two logical representations of the analyzed source code: a control-flow graph and a syntax tree. | | | Control transfer instructions (control transfer instructions,CT-instructions for short, are conditional and unconditional jumps, call and return instructions) are present only at the end of basic blocks. | | | The assembly code of the program is split in smaller parts : basic blocks. |
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http://www.irisa.fr/solidor/work/heptane-demo/fft_s.html
(90 words)
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| | [No title] |
| | #define WORDINBLOCK 2 /* 4 words per block */ //L1_blockmask is a hexadecimal number used to mask off the last // N bits, where N is the number of L1_BLOCKS or words in a cache // line. | | | #define BUFSIZE 65536 char buf[BUFSIZE]; FILE *file; //Integer for block index or position in a cache line long block_index; //Counters for totals of memory references, floating-point instructions, and // instructions. | | | Most errors with MetaSim/ATOM occur because // this number is not large enough. |
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http://www.sdsc.edu/PMaC/MetaSim/Tracer/Code/msim.anal.t3e.c
(815 words)
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| | [No title] |
| | // BLOCKS is the number of words in a cache line | | | //Function to output the procedure name of the current basic block | | | //Integer for block index or position in a cache line |
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http://www.sdsc.edu/PMaC/MetaSim/Tracer/Code/msim.anal.template.L3.htm
(1433 words)
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| | CS640 slides |
| | * ``any event of significance at a node will be propagated to that node along an acyclic path'' * In reachability analysis, if we visit the blocks in depth first order, we can reduce the number of iterations. | | | an available definition is the last definition of a given data item in a basic block | | | Input: Flow graph with GEN and KILL computed for each block |
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http://cs.gmu.edu/~white/CS640/Slides/dataflow1.html
(868 words)
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| | kbAlertz: This article explains how to pass a Basic COMMON block to a FORTRAN version 5.00 subroutine. This information ... |
| | This information applies to Microsoft QuickBasic version 4.50, to Microsoft Basic Professional Development System (PDS) version 7.00 for MS-DOS and MS OS/2, and to Microsoft FORTRAN Compiler version 5.00. | | | This information applies to Microsoft QuickBasic version 4.50, to Microsoft Basic Professional Development System (PDS) version 7.00 for MS-DOS and MS OS/2,... | | | This technique will work only with FORTRAN version 5.00 because you must use a FORTRAN STRUCTURE...END STRUCTURE data type, which is not supported in earlier versions of FORTRAN. |
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http://www.kbalertz.com/kb_Q65884.aspx
(875 words)
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| |
| | Recreating 16th and 17th Century Clothing: The Renaissance Tailor |
| | For examples on where to measure before starting, click here. | | | In order to adjust your body block to make a bodice pattern, you'll need to plot your neck opening as in the example below: | | | After the basic block is developed, I'll go on to show how to make the pattern 'more period'. |
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http://www.vertetsable.com/demos_patterndraft.htm
(1089 words)
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| | New stuff on Team Agile: XtUnit and Interception block with basic documentation |
| | The interception application block allows the developer to easily add interception abilities to various classes in the framework. | | | XtUnit is a unit testing extension for.Net based frameworks. | | | The extensibility block provides basic classes and means to load and search for plugins for your application. |
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http://weblogs.asp.net/rosherove/archive/2005/01/23/358940.aspx
(395 words)
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| | Amazon.com: d- and f- Block Chemistry (Basic Concepts In Chemistry): Books |
| | Block Chemistry, Worked Problem, Periodic Table, Summary of Key Points | | | CAPs: Block Chemistry, Worked Problem, Periodic Table, Summary of Key Points | | | Basic Atomic and Molecular Spectroscopy (Basic Concepts In Chemistry) by J. |
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http://www.amazon.com/exec/obidos/tg/detail/-/0471224766?v=glance
(620 words)
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| | Your Basic Block |
| | It isn't one of my finiest efforts in programming, especially in graphical presentation, but it can be sort of challenging and I kind of like the basic concept. | | | Your Basic Block is a rather simple game in which youy manuever your sunglasses-wearing square around the screen, collecting the purple blocks that will advance you to the next level, all the while avoiding the clutches of the all-purpose Bad Guy. |
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http://www.geocities.com/jebadeezer/dinomattgames/yourbasicblock.html
(69 words)
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| | CUSTOM PATTERN MAKER OUTLINE FOR PLOTTING BASIC BLOCK |
| | These are a "drawing blocks" to be that are "inserted" into your drawing. | | | If you want matching or marking indications, you will find those under one of the SYMBOLS sub-menus. | | | Some allow you to drag them to a larger size and some allow you to rotate them into place. |
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http://www.access-presto.com/cpminfo/blockplot.html
(481 words)
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| | Adaptive Basic Block Organisation |
| | The goal is to make programs run faster by improving their cache behaviour. | | | The toolkit improves the performance of binaries produced by gcc 2.95.2 at optimisation level -O6 by up to 28%. | | | ABBO is a technique for organising basic blocks in programs at run time. |
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http://abbo.sourceforge.net
(131 words)
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| | Comp.compilers: Re: Basic-Block Profiling Isn't Always Accurate |
| | >general solution is to profile edges, not blocks, in the control-flow | | | >The problem is that blocks that end with an annulled conditional branch do | | | >frequency of annulled branches and the size of basic blocks. |
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http://compilers.iecc.com/comparch/article/93-03-027
(307 words)
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| | New Page 3 |
| | This classification can serve as a useful guide to structuring a regional anesthesia rotation for anesthesiology residents and fellows. | | | The NYSORA classification of regional anesthesia procedures (See Techniques) to basic, inter-mediate and advanced is based on their clinical applicability, complexity of their performance, the frequency of their use in clinical practice in the US and their potential for complications. | | | These procedures should be a part of the |
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http://www.nysora.com/publications/pnb-classification.htm
(245 words)
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| | [No title] |
| | You will describe the expressions by the earliest instruction that computes that expression. | | | The definition numbers should be assigned in program order in each basic block. | | | The bit vectors should be output as for the KILL set. |
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http://www.eecg.toronto.edu/~voss/ece540/Slides/Assign2.doc
(514 words)
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| | C-Breeze Compiler Infrastructure |
| | This relies 00058 // on the dismantler having changed all return stmts into goto's to 00059 // the single return stmt at the end of the procedure. | | | Separate the dismantled code into basic blocks so that the 00049 // body() of the procNode is a blockNode whose stmts() is a list of 00050 // basicblockNode's. | | | Find the preds and succs of each basic block to create a control 00053 // flow graph. |
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http://www.cs.utexas.edu/~c-breeze/html/cfg_8cc-source.html
(406 words)
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| |
| | Control Flow Analysis and Basic Blocks |
| | Kind of State Recorded On Basic Block Depends on Kinds of Optimizations to be Performed | | | Basic Block Is (Generally) Sequence of IR Statements | | | Evaluation of Condition Is Part of Basic Block Ended by Conditional Jump |
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http://www.deas.harvard.edu/courses/cs153/spring2001/flow_bblock.html
(370 words)
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| | cvs commit: parrot/languages/imcc cfg.c cfg.h debug.c debug.h imc.c imc. |
| | + */ + if (ins->type and ITADDR) + dont_optimize = 1; } - /* At the end, ins holds the last instruction of the block */ - bb->end = ins; - - if (IMCC_DEBUG) + if (IMCC_DEBUG>2) dump_instructions(); } - /* Once the basic blocks have been computed, build_cfg computes the dependences between them. | | | We search for edges that go from a node to one - * of its dominators. | | | - * Basick block A dominates B, if each path to B passes trough A + * Basic block A dominates B, if each path to B passes trough A + * + * s. |
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http://www.mail-archive.com/cvs-parrot@perl.org/msg02684.html
(708 words)
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| | Terabit Routers - The Converged Network's Basic Building Block |
| | Terabit Routers - The Converged Network's Basic Building Block | | | Basic Transmission Protocols; SONET, ATM, IP Why Are the Differences of these Protocols Important | | | The market for 1394 components and systems is ready to take off. |
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http://www.igigroup.com/st/toc/tocterabit.html
(213 words)
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| | : Package EDU.purdue.cs.bloat.cfg |
| | represents a basic block of code used in control flow graphs. | | | A basic block is a sequence of code that is entered only in once place (e.g. | | | blocks), certain properties of the control flow graph such as its dominator tree, and to visualize a control flow graph. |
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http://www.cs.purdue.edu/s3/projects/bloat/docs/api/EDU/purdue/cs/bloat/cfg/package-summary.html
(185 words)
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| | Basic Science Block |
| | You will be evaluated on a pass/fail basis for the two-week block. | | | The goal of the two-week block is to revisit specific basic science areas that are of particular significance to both Pediatrics and Ob/Gyn. | | | At the end of each day, you will be asked to answer 5 multiple choice questions that tests the knowledge base you should have gained on that day. |
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http://www.urmc.rochester.edu/smded/Ped/Basic_Science_Block.htm
(694 words)
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| | Foundations - Basic Blocks |
| | By altering the scale option of the page setup available on many computers, blocks can be printed out in a large variety of sizes. | | | To be sure that a block finishes at the correct size, test the printer before printing out the foundation. | | | The foundation should be printed out 1/2" larger to include the 1/4" seam allowance on all sides of the block. |
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http://mail.kosmickitty.com/Foundations/Basics/BasicBlocks.html
(98 words)
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| | Zprof: A Basic Block Profiler |
| | is a basic block profiler for ANSI-C programs. | | | It produces a count of the number of times each basic block is executed. | | | You can view the man page and the README with installation instructions. |
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http://www.cs.binghamton.edu/~zdu/zprof
(69 words)
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