The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2015
Filed:
Dec. 26, 2009
Spiros Kalogeropulos, Los Gatos, CA (US);
Partha P. Tirumalai, Fremont, CA (US);
Yonghong Song, Palo Alto, CA (US);
Spiros Kalogeropulos, Los Gatos, CA (US);
Partha P. Tirumalai, Fremont, CA (US);
Yonghong Song, Palo Alto, CA (US);
Oracle America, Inc., Redwood Shores, CA (US);
Abstract
A system and method for minimizing register spills during compilation. A compiler reallocates spilled variables from stack memory to other available registers. Although a corresponding register file may not have available registers for storage, the compiler identifies available registers in other locations for storage. The compiler identifies available registers in an alternate register file, wherein the alternate register file may be a floating-point register file which is then used for spilled integer variables. Other instruction type combinations between spilled variables and alternate register files are possible. When an available register within the alternate register file is identified, the compiler modifies the program instructions to allocate the corresponding spilled variable to the available register.