Vol. 10 No. 1 1998 When two or more address expressions reference the same memory location, these address expressions are aliases for each other. A compiler performs alias analysis to detect which address expressions do not reference the same memory locations. Good alias analysis is essential to the generation of efficient code. Code motion out of loops, common subexpression elimination, alloca...

Alias analysis for Fortran is less complicated than for programming languages with pointers but many real Fortran programs violate the standard: a formal parameter or a common variable that is aliased with another formal parameter is modified. Compilers, assuming standard-conforming programs, consider that an assignment to one variable will not change the value of any other variable, allowing o...

We contribute to the understanding of political inequality in the U.S. by investigating whether state legislators are less responsive to requests for help with registering to vote made by blacks relative to identical requests made by whites. To answer this question we conducted a field experiment in October 2008 where approximately 6,000 state legislators were e-mailed. In the experiment we ran...

This paper discusses the effects of frequency selection on source localization and geoacoustic inversion methods that use frequency coherent objective functions. Matched-field processors based on frequency-coherent objective functions often have rapidly fluctuating range ambiguity surfaces. Insufficient sampling in frequency domain results in range aliasing terms that affect geoacoustic inversi...