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| 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/PeepholeOptimizer.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/PeepholeOptimizer.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/PeepholeOptimizer.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/PeepholeOptimizer.cpp b/llvm/lib/CodeGen/PeepholeOptimizer.cpp index 1b8106d1fa1..11af50fe577 100644 --- a/llvm/lib/CodeGen/PeepholeOptimizer.cpp +++ b/llvm/lib/CodeGen/PeepholeOptimizer.cpp @@ -1833,8 +1833,8 @@ ValueTrackerResult ValueTracker::getNextSourceFromInsertSubreg() { // sub-register we are tracking. const TargetRegisterInfo *TRI = MRI.getTargetRegisterInfo(); if (!TRI || - (TRI->getSubRegIndexLaneMask(DefSubReg) & - TRI->getSubRegIndexLaneMask(InsertedReg.SubIdx)) != 0) + !(TRI->getSubRegIndexLaneMask(DefSubReg) & + TRI->getSubRegIndexLaneMask(InsertedReg.SubIdx)).none()) return ValueTrackerResult(); // At this point, the value is available in v0 via the same subreg // we used for Def. |
