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authorWilco Dijkstra <wdijkstr@arm.com>2017-11-03 18:19:33 +0000
committerWilco Dijkstra <wilco@gcc.gnu.org>2017-11-03 18:19:33 +0000
commit26895c21eb10cfd6c00285e13e6f13a75cccc1d9 (patch)
tree7108a16814077daf80f63a291fa8df3f32868b67 /gcc/domwalk.h
parentf66060c60238bc96acae4af983ad8a4dc25d304f (diff)
downloadgcc-26895c21eb10cfd6c00285e13e6f13a75cccc1d9.tar.gz
Improve aarch64_legitimate_constant_p
This patch further improves aarch64_legitimate_constant_p. Allow all integer, floating point and vector constants. Allow label references and non-anchor symbols with an immediate offset. This allows such constants to be rematerialized, resulting in smaller code and fewer stack spills. SPEC2006 codesize reduces by 0.08%, SPEC2017 by 0.13%. gcc/ * config/aarch64/aarch64.c (aarch64_legitimate_constant_p): Return true for more constants, symbols and label references. (aarch64_valid_floating_const): Remove unused function. From-SVN: r254388
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