'Register allocation' presentation slideshows

Instruction-Level Parallelism

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Register allocation

Morgensen , Torben . "Register Allocation." Basics of Compiler Design . pp191-208 . from (http://www.diku.dk/~ torbenm/Basics/basics_lulu2.pdf) Karina Liles Compiler Construction Spring 2013. Register allocation. Overview. 9.2 Liveness 9.3 Liveness Analysis 9.4 Interference

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Register Allocation

Register Allocation . Register Allocation. Introduction Problem Formulation Algorithm. Register Allocation Goal. Allocation of variables (pseudo-registers) in a procedure to hardware registers Directly reduces running time by converting memory access to register access

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Instruction Selection

Instruction Selection. ??? ????????????? xpqiu@fudan.edu.cn http://jkx.fudan.edu.cn/~xpqiu/compiler. References. http://www.stanford.edu/class/cs143 / Partial contents are copied from the slides of Alex Aiken. Backend Optimizations. Instruction selection

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Graph Colouring

Graph Colouring. Lecture 20: Nov 25. Graph Colouring. Graph Colouring Problem: Given a graph, colour all the vertices so that two adjacent vertices get different colours. Objective: use minimum number of colours. 3-colourable. Optimal Colouring.

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Range Analysis Domain for BigInt

Range Analysis Domain for BigInt. Domain values D include: bounded intervals of integers: [a,b] intervals unbounded from one side (- ?,b ] , [ a,?) empty set, denoted ? the set of all integers, denoted T Formally, if Z denotes integers, then

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Code Optimization CS429: Computer Organization, Architecture & Programming

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Jo Ellis-Monaghan St. Michaels College Colchester, VT 05439 e-mail: jellis-monaghan@smcvt website: academics.smcvt/je

4. 3. 3. 2. 1. 4. 1. 2. 4. 1. 3. 2. 2. Crazy Cubes. Jo Ellis-Monaghan St. Michaels College Colchester, VT 05439 e-mail: jellis-monaghan@smcvt.edu website: http://academics.smcvt.edu/jellis-monaghan. and Other Applications of Graphs and Networks. A multiple edge. A loop. A.

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Credible Compilation With Pointers

Credible Compilation With Pointers. Martin Rinard and Darko Marinov Laboratory for Computer Science Massachusetts Institute of Technology. Goal. Compiler. Source Code (C, Java). Proof that Object Code Implements Source Code. Object Code. Proof Checker. Yes. No. Proposed Approach.

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Liveness Analysis and Register Allocation

Leonidas Fegaras. Liveness Analysis and Register Allocation. Liveness Analysis. So far we assumed that we have a very large number of temporary variables stored in registers This is not true for real machines CISC machines have very few registers Pentium has 6 general registers only

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Mitigating the Compiler Optimization Phase-Ordering Problem using Machine Learning

Mitigating the Compiler Optimization Phase-Ordering Problem using Machine Learning . Sameer Kulkarni John Cavazos. Introduction to Phase Ordering Present State-of-the-Art Proposed Solution Understand code Predict optimization An example Results Questions. What is Phase Ordering?.

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Bitwidth-Aware Scheduling and Binding in High-Level Synthesis

Bitwidth-Aware Scheduling and Binding in High-Level Synthesis . X. Cheng + , J. Cong, Y. Fan, G. Han, J. Lin, J. Xu + , Z. Zhang Computer Science Department, UCLA + Microprocessor Development and Research Center, PKU. Outline. Motivation Bitwidth-aware synthesis flow

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Lecture 8 Software Pipelining

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A Global Progressive Register Allocator

A Global Progressive Register Allocator. David Ryan Koes Seth Copen Goldstein Carnegie Mellon University {dkoes,seth}@cs.cmu.edu. eax. ebx. ecx. edx. esi. edi. esp. ebp. Register Allocation Problem. unbounded number of program variables.

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Machine Model Pseudo-Registers Graph Coloring

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Compiler Support for Superscalar Processors

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Register Allocation

Register Allocation. Harry Xu CS 142 (b) 02/11/2013. Register Allocation. Assigning a large number of program variables to a small number of CPU registers for improved performance Motivation A developer often allocates arbitrarily many variables

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Lecture 6 Register Allocation

Lecture 6 Register Allocation. Introduction Abstraction and the Problem Algorithm Reading: Chapter 8.8.4 Before next class: Chapter 10.1 - 10.2. Pseudo Registers. Code Selection Machine instructions using pseudo registers Pseudo registers Like machine registers, but infinite number

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New approach to register allocation and instruction scheduling, using DNA Computing

New approach to register allocation and instruction scheduling, using DNA Computing. 2001-30593 ??? 2002-30447 ???. DNA Computing Register Allocation. 2001-30593 ???. Register Allocation. Compiler ? code generation ???? ???? ???? pseudo register ?? ???? machine register ? ???? ??

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