HKG15-405 Redundant zerosign extension elimination in GCC

HKG15-405: Redundant zero/sign-extension elimination in GCC
Speaker: Kugan Vivekanandarajah
Date: February 12, 2015
★ Session Summary ★
Several instances of redundant zero/sign-extension related bugs are reported in GCC and Linaro bugzilla. These bugs are sources of performance/code size penalties. This presentation will discuss the history, design considerations, implementation, and performance characteristics of redundant zero/sign extension elimination in GCC. We will then discuss a new compiler pass that performs computation in promoted type mode in such a way that removes redundant zero/sign-extensions.
★ Resources ★
★ Event Details ★
Linaro Connect Hong Kong 2015 – #HKG15
February 9-13th, 2015
Regal Airport Hotel Hong Kong Airport