diff options
| author | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2016-12-15 14:36:06 +0000 |
|---|---|---|
| committer | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2016-12-15 14:36:06 +0000 |
| commit | 91b5cf8412a9fffdca96619f02f485c8c48bf852 (patch) | |
| tree | 45cc792752ed1bae1559f8501bc5e485eda07fed /llvm/lib/CodeGen/LiveRangeEdit.cpp | |
| parent | 2f7f0e7a480d760999f1973d8db76aee590cf83e (diff) | |
| download | bcm5719-llvm-91b5cf8412a9fffdca96619f02f485c8c48bf852.tar.gz bcm5719-llvm-91b5cf8412a9fffdca96619f02f485c8c48bf852.zip | |
Extract LaneBitmask into a separate type
Specifically avoid implicit conversions from/to integral types to
avoid potential errors when changing the underlying type. For example,
a typical initialization of a "full" mask was "LaneMask = ~0u", which
would result in a value of 0x00000000FFFFFFFF if the type was extended
to uint64_t.
Differential Revision: https://reviews.llvm.org/D27454
llvm-svn: 289820
Diffstat (limited to 'llvm/lib/CodeGen/LiveRangeEdit.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LiveRangeEdit.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/LiveRangeEdit.cpp b/llvm/lib/CodeGen/LiveRangeEdit.cpp index 918be476597..01fc0a45d3d 100644 --- a/llvm/lib/CodeGen/LiveRangeEdit.cpp +++ b/llvm/lib/CodeGen/LiveRangeEdit.cpp @@ -236,7 +236,7 @@ bool LiveRangeEdit::useIsKill(const LiveInterval &LI, unsigned SubReg = MO.getSubReg(); LaneBitmask LaneMask = TRI.getSubRegIndexLaneMask(SubReg); for (const LiveInterval::SubRange &S : LI.subranges()) { - if ((S.LaneMask & LaneMask) != 0 && S.Query(Idx).isKill()) + if (!(S.LaneMask & LaneMask).none() && S.Query(Idx).isKill()) return true; } return false; |
