See updated part 3 of the patch in attachment. New ChangeLog are as follows
*** gcc/ChangeLog ***
2014-04-23 Thomas Preud'homme <thomas.preudho...@arm.com>
PR tree-optimization/54733
* tree-ssa-math-opts.c (find_bswap_load): Renamed to ...
(find_bswap_or_nop_load): This.
(find_bswap_1): Renamed to ...
(find_bswap_or_nop_1): This.
(find_bswap): Renamed to ...
(find_bswap_or_nop): This. Also add detection of bitwise operations
equivalent to load in host endianness.
(execute_optimize_bswap): Likewise.
*** gcc/testsuite/ChangeLog ***
2014-04-23 Thomas Preud'homme <thomas.preudho...@arm.com>
PR tree-optimization/54733
* gcc.dg/optimize-bswapdi-3.c: Extend test to check detection of
bitwise operation equivalent to load in host endianness.
* gcc.dg/optimize-bswaphi-1.c: Likewise.
* gcc.dg/optimize-bswapsi-2.c: Likewise.
Bootstrapped on x86_64-linux-gnu with no testsuite regression. Also did a
arm-none-eabi cross build with no regression after running testsuite via qemu
Best regards,
Thomas
gcc32rm-84.4.0.part3.diff
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