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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 | 0415b1810bbf93f434f1c561e172bf24c1cb37dc (patch) | |
| tree | c2d7a5cda9e53e3e9e710e4b24749681a6ed8ac6 /lib/Support/MemoryBuffer.cpp | |
| parent | 7bfabdac4ebf82f9f6a9ee7a00fd948f729dc7fe (diff) | |
| download | external_llvm-0415b1810bbf93f434f1c561e172bf24c1cb37dc.tar.gz external_llvm-0415b1810bbf93f434f1c561e172bf24c1cb37dc.tar.bz2 external_llvm-0415b1810bbf93f434f1c561e172bf24c1cb37dc.zip | |
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189931 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/MemoryBuffer.cpp')
0 files changed, 0 insertions, 0 deletions