See updated part 2 of the patch in attachment. Part 1 is unchanged. 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): New.
(find_bswap_1): Add support for memory source.
(find_bswap): Likewise.
(execute_optimize_bswap): Likewise.
* expr.c (get_inner_reference): Renamed to ...
(get_inner_reference_1): This. Also add a parameter to control whether
a MEM_REF should be split into base + offset.
(get_inner_reference): New wrapper around get_inner_reference_1 for
compatibility.
(get_inner_reference_base): New wrapper around get_inner_reference_1
to access its new facet.
* tree.h (get_inner_reference_base): Declare.
*** gcc/testsuite/ChangeLog ***
2014-04-23 Thomas Preud'homme <thomas.preudho...@arm.com>
PR tree-optimization/54733
* gcc.dg/optimize-bswapdi-3.c: New test to check extension of bswap
optimization to support memory sources.
* gcc.dg/optimize-bswaphi-1.c: Likewise.
* gcc.dg/optimize-bswapsi-2.c: Likewise.
* gcc.c-torture/execute/bswap-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.part2.diff
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