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| author | James Molloy <james.molloy@arm.com> | 2015-12-11 10:04:51 +0000 |
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| committer | James Molloy <james.molloy@arm.com> | 2015-12-11 10:04:51 +0000 |
| commit | 37b82e79b20f7f8798d2b51508d5923703204351 (patch) | |
| tree | cc9ed2413002adf3c29f49032eb7a8f9a11536b3 /lldb/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.cpp | |
| parent | 48651489b3e885c21a0119a9e06f5355303dfd66 (diff) | |
| download | bcm5719-llvm-37b82e79b20f7f8798d2b51508d5923703204351.tar.gz bcm5719-llvm-37b82e79b20f7f8798d2b51508d5923703204351.zip | |
[InstCombine] Make MatchBSwap also match bit reversals
MatchBSwap has most of the functionality to match bit reversals already. If we switch it from looking at bytes to individual bits and remove a few early exits, we can extend the main recursive function to match any sequence of ORs, ANDs and shifts that assemble a value from different parts of another, base value. Once we have this bit->bit mapping, we can very simply detect if it is appropriate for a bswap or bitreverse.
llvm-svn: 255334
Diffstat (limited to 'lldb/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.cpp')
0 files changed, 0 insertions, 0 deletions
