https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54733
--- Comment #3 from thopre01 at gcc dot gnu.org --- Author: thopre01 Date: Fri May 23 03:33:28 2014 New Revision: 210843 URL: http://gcc.gnu.org/viewcvs?rev=210843&root=gcc&view=rev Log: 2014-05-23 Thomas Preud'homme <thomas.preudho...@arm.com> PR tree-optimization/54733 gcc/ * tree-ssa-math-opts.c (nop_stats): New "bswap_stats" structure. (CMPNOP): Define. (find_bswap_or_nop_load): New. (find_bswap_1): Renamed to ... (find_bswap_or_nop_1): This. Also add support for memory source. (find_bswap): Renamed to ... (find_bswap_or_nop): This. Also add support for memory source and detection of bitwise operations equivalent to load in host endianness. (execute_optimize_bswap): Likewise. Also move its leading comment back in place and split statement transformation into ... (bswap_replace): This. gcc/testsuite * gcc.dg/optimize-bswapdi-3.c: New test to check extension of bswap optimization to support memory sources and bitwise operations equivalent to load in host endianness. * gcc.dg/optimize-bswaphi-1.c: Likewise. * gcc.dg/optimize-bswapsi-2.c: Likewise. * gcc.c-torture/execute/bswap-2.c: Likewise. Added: trunk/gcc/testsuite/gcc.c-torture/execute/bswap-2.c trunk/gcc/testsuite/gcc.dg/optimize-bswapdi-3.c trunk/gcc/testsuite/gcc.dg/optimize-bswaphi-1.c trunk/gcc/testsuite/gcc.dg/optimize-bswapsi-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-math-opts.c
