International Business Machines Corporation

John Michael Chase

Jian Xu

Allan Henry Kielstra

Trong Truong

Francisco Miguel Anaya

Ying Chau Raymond Mak

Yingcong Guan

Roger He Pett

Ka Yin Lam

One or more computer processors receive a pattern string comprising a pointer to a pattern search point and a string comprising a pointer to a search point; determine a plausible search point within the string for the pattern character; execute a search string (SRST) instruction with the determined search point and the pattern character; compute a pattern offset comprising a difference between a first occurrence of the determined pattern character located within the pattern string but not in the correct position and a current pattern character position; execute a subsequent SRST instruction with the current pattern character position and the computed offset set as a new search point; and responsive to identifying all pattern characters in the correct position within the string based on the executed subsequent SRST instruction, transmit memory address associated with a substring comprised of the string and corresponding pattern characters in the correct position.

Fast search for search string instructions

A computer-implemented method includes generating static analysis data by performing static analysis on a program. A breakpoint is set in the program automatically, by a computer processor, based on the static analysis data. The breakpoint is hit during a runtime of the program. A program bug is automatically identified at a context location of the breakpoint when the breakpoint is hit during the runtime of the program. An interactive debugging session of the program is launched automatically at the context location of the breakpoint, based on the identifying the program bug.

Automated debugging with combined static and dynamic analysis

Growing community of inventors

Newmarket, Canada

John Michael Chase