diff options
| author | Cameron Zwarich <zwarich@apple.com> | 2011-02-25 01:11:01 +0000 |
|---|---|---|
| committer | Cameron Zwarich <zwarich@apple.com> | 2011-02-25 01:11:01 +0000 |
| commit | 8fbbdca45c0eb2ef4a434cdef883f5c36516376c (patch) | |
| tree | 19eab9d6eca4d21a4e6994eff635d2666dd301d0 /lib/Target/ARM/ARMFrameLowering.cpp | |
| parent | 33b554795def5cd50f961721acbb33246226824b (diff) | |
Set NumSignBits to 1 if KnownZero/KnownOne are being zero extended. In theory it
is possible to do better if the high bit is set in either KnownZero/KnownOne, but
in practice NumSignBits is always 1 when we are zero extending because nothing
is known about that register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126465 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMFrameLowering.cpp')
0 files changed, 0 insertions, 0 deletions