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| author | Tim Northover <tnorthover@apple.com> | 2013-09-04 11:57:17 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2013-09-04 11:57:17 +0000 |
| commit | dc647a2603712672e705479497d6f6bff53e027e (patch) | |
| tree | 090ef469890af7000180102111af7f51f28086e8 /llvm/lib/Support/Unicode.cpp | |
| parent | c0756c454c3bace142dc8aa7b01096bb2e18854a (diff) | |
| download | llvm-dc647a2603712672e705479497d6f6bff53e027e.zip llvm-dc647a2603712672e705479497d6f6bff53e027e.tar.gz llvm-dc647a2603712672e705479497d6f6bff53e027e.tar.bz2 | |
InstCombine: allow unmasked icmps to be combined with logical ops
"(icmp op i8 A, B)" is equivalent to "(icmp op i8 (A & 0xff), B)" as a
degenerate case. Allowing this as a "masked" comparison when analysing "(icmp)
&/| (icmp)" allows us to combine them in more cases.
rdar://problem/7625728
llvm-svn: 189931
Diffstat (limited to 'llvm/lib/Support/Unicode.cpp')
0 files changed, 0 insertions, 0 deletions