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Paper Abstract and Keywords
Presentation 2015-01-30 11:30
Detecting Missed Arithmetic Optimization Opportunities Using Random Testing of C Compilers
Atsushi Hashimoto, Nagisa Ishiura (Kwansei Gakuin Univ.) VLD2014-139 CPSY2014-148 RECONF2014-72
Abstract (in Japanese) (See Japanese page) 
(in English) This article presents new methods of detecting missed arithmetic optimization opportunities of C compilers by random testing. For each iteration of random testing, a C program containing arithmetic expressions is generated, from which another program, with the expressions optimized in the C program level, is also generated. Lack of optimization on the first program is detected by comparing the two assembly codes compiled from the two C programs. A method of detecting erroneous optimization or insufficient optimization involving volatile variables is also proposed, in which two random programs differing only on the initial values for volatile variables are generated, and the resulting assembly codes are compared. Random test systems implemented based on the proposed methods have detected missed optimization opportunities on several compilers, including the latest development versions of GCC-5.0.0 and LLVM/Clang-3.6.
Keyword (in Japanese) (See Japanese page) 
(in English) Compiler / Randomtest / Optimization / Volatile / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 426, VLD2014-139, pp. 169-174, Jan. 2015.
Paper # VLD2014-139 
Date of Issue 2015-01-22 (VLD, CPSY, RECONF) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF VLD2014-139 CPSY2014-148 RECONF2014-72

Conference Information
Conference Date 2015-01-29 - 2015-01-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Hiyoshi Campus, Keio University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) FPGA Applications, etc 
Paper Information
Registration To VLD 
Conference Code 2015-01-RECONF-CPSY-VLD-SLDM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Detecting Missed Arithmetic Optimization Opportunities Using Random Testing of C Compilers 
Sub Title (in English)  
Keyword(1) Compiler  
Keyword(2) Randomtest  
Keyword(3) Optimization  
Keyword(4) Volatile  
1st Author's Name Atsushi Hashimoto  
1st Author's Affiliation Kwansei Gakuin University (Kwansei Gakuin Univ.)
2nd Author's Name Nagisa Ishiura  
2nd Author's Affiliation Kwansei Gakuin University (Kwansei Gakuin Univ.)
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Date Time 2015-01-30 11:30:00 
Presentation Time 20 
Registration for VLD 
Paper # IEICE-VLD2014-139,IEICE-CPSY2014-148,IEICE-RECONF2014-72 
Volume (vol) IEICE-114 
Number (no) no.426(VLD), no.427(CPSY), no.428(RECONF) 
Page pp.169-174 
#Pages IEICE-6 
Date of Issue IEICE-VLD-2015-01-22,IEICE-CPSY-2015-01-22,IEICE-RECONF-2015-01-22 

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