compilers principles techniques and tools phần 5 ppt

... \ / Parameters and returned value Y Control link Links and saved status i I Temporaries and local data Parameters and returned value v Control link Links and saved status top-sp ... as in Fig. 6. 45( b). The entire expression is true if and only if the gotos of instructions 100 or 104 are reached, and is false if and only if the gotos of instructions 103...

Ngày tải lên: 12/08/2014, 11:20

... For all x and y in V and f in F, x 5 y implies f (x) 5 f (y). (9.22) Equivalently, monotonicity can be defined as For all z andy in V and f in F, f(xAy) 5 f(x)Af(y). ... solution. Since MOP < IDEAL and MFP 5 MOP, we know that MFP 5 IDEAL, and therefore the solution MFP provided by the iterative algorithm is safe. 9.3 .5 Exercises for S...

Ngày tải lên: 12/08/2014, 11:20

... 55 2 8.7 .5 Use of Machine Idioms 55 2 8.7.6 Exercises for Section 8.7 55 3 8.8 Register Allocation and Assignment 55 3 8.8.1 Global Register Allocation 55 3 8.8.2 Usage Counts 55 4 ... Loops 55 6 8.8.4 Register Allocation by Graph Coloring 55 6 8.8 .5 Exercises for Section 8.8 55 7 8.9 Instruction Selection by Tree Rewriting 55 8 8.9.1 Tree-Translatio...

Ngày tải lên: 12/08/2014, 11:20

... is, just the first and last separated by a hyphen. Thus, [abc] is shorthand for alblc, and [a-z] is shorthand for aJbJ . . . Jz. Example 3.7 : Using these shorthands, we can rewrite ... L and D in two, essentially equivalent, ways. One way is that L and D are, respectively, the alphabets of uppercase and lowercase letters and of digits. The second way is that L...

Ngày tải lên: 12/08/2014, 11:20

... typically used in compilers. We first present the basic concepts, then techniques suitable for hand implemen- tation, and finally algorithms that have been used in automated tools. Since programs ... many popular Unix utilities such as awk, ed, egrep, grep, lex, sed, sh, and vi. The IEEE 1003 and ISO/IEC 99 45 standards documents for the Portable Operating System Interface...

Ngày tải lên: 12/08/2014, 11:20

... digit. lexval = 5 I digit. lexval = 3 Figure 5. 3: Annotated parse tree for 3 * 5 + 4 n Example 5. 3 : The SDD in Fig. 5. 4 computes terms like 3 * 5 and 3 * 5 * 7. The top-down ... order. Exercise 5. 4 .5 : Convert each of your SDD's from Exercise 5. 4.4 to an SDT in the manner of Example 5. 19. Exercise 5. 4.6 : Modify the SDD of Fig. 5. 25...

Ngày tải lên: 12/08/2014, 11:20

... J., 1941. 4. Collins, G. E., "A method for overlapping and erasure of lists," Comm. ACM 2:12 (Dec., 1960), pp. 655 - 657 . 5. Dijkstra, E. W ., "Recursive programming," ... take only one operand do not have a src2. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com CHAPTER 8. CODE GENERATION allocation and assignment, and instruc...

Ngày tải lên: 12/08/2014, 11:20

... the loop 25 times, which would result in code with55instructions. 10 .5. 2 Software Pipelining of Loops Software pipelining provides a convenient way of getting optimal resource usage and compact ... graph and a machine-resource description. OUTPUT: A schedule S mapping each instruction to a basic block and a time slot. METHOD: Execute the program in Fig. 10. 15. Some shor...

Ngày tải lên: 12/08/2014, 11:20

... projects and resources. The Proj- NON-CPM RESOURCE TOOLS 147 tools, basic CPM tools, or integrated systems. We discuss the options and make some generalized recommendations in Chapter 5. 2. There ... potential for these tools to provide improved re- source scheduling results, interest in such solutions remains very low. Non-CPM Resource Planning and Analysis Tools Representativ...

Ngày tải lên: 14/08/2014, 11:21

... sensitivity Minutes 2 mAU 5 mAU Programmed wavelength 255 nm 1 4 3 4 5 5 6 6 7 7 8 8 9 9 10 10 3 1 13 14 Absorbance ( 255 nm) Absorbance 0.0 5. 0 10.0 15. 0 Minutes Soil extract 255 nm vs programmed wavelength © ... run: FIGURE 5. 3 Comparison of UV detection at 255 nm with programmed wavelength for PAH standards and for soil extracts that contain PAHs. 20 mAU 20 mAU 255 nm 280 nm...

Ngày tải lên: 11/08/2014, 21:21