'Dominance frontiers' presentation slideshows

Building SSA Form

484 views • 39 slides

Factored Use-Def Chains and Static Single Assignment Forms

Factored Use-Def Chains and Static Single Assignment Forms. Addresses use-def difficulty with optimization: Multiple defs of the same register Which def reaches use? Is RHS expression available? FUD/SSA forms: Each def of a variable is given a unique name

490 views • 34 slides

Optimizing Compilers CISC 673 Spring 2011 Static Single Assignment III

Optimizing Compilers CISC 673 Spring 2011 Static Single Assignment III. John Cavazos University of Delaware. SSA Construction Algorithm. 1. Insert ? -functions a.) calculate dominance frontiers b.) find global names for each name, build list of blocks that define it

319 views • 31 slides

Optimizing Compilers CISC 673 Spring 2011 Static Single Assignment II

Optimizing Compilers CISC 673 Spring 2011 Static Single Assignment II. John Cavazos University of Delaware. What is SSA?. Many data-flow problems have been formulated To limit number of analyses, use single analysis to perform multiple transformations ? SSA

385 views • 28 slides

Optimizing Compilers CISC 673 Spring 2011 Static Single Assignment II

Optimizing Compilers CISC 673 Spring 2011 Static Single Assignment II. John Cavazos University of Delaware. What is SSA?. Many data-flow problems have been formulated To limit number of analyses, use single analysis to perform multiple transformations ? SSA

286 views • 28 slides

Advanced Compilers CMPSCI 710 Spring 2003 Dominators, etc.

Advanced Compilers CMPSCI 710 Spring 2003 Dominators, etc. Emery Berger University of Massachusetts, Amherst. Dominators, etc. Last time Live variable analysis backwards problem Constant propagation algorithms def-use chains Today SSA-form dominators. Def-Use Chains: Problem.

374 views • 27 slides

Advanced Compilers CMPSCI 710 Spring 2003 Dominators, etc.

Advanced Compilers CMPSCI 710 Spring 2003 Dominators, etc. Emery Berger University of Massachusetts, Amherst. Dominators, etc. Last time Live variable analysis backwards problem Constant propagation algorithms def-use chains Today SSA-form dominators. Def-Use Chains: Problem.

276 views • 27 slides

Optimizing Compilers CISC 673 Spring 2011 Static Single Assignment

270 views • 18 slides