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| author | Jay Foad <jay.foad@amd.com> | 2023-08-14 14:08:57 +0100 |
|---|---|---|
| committer | Jay Foad <jay.foad@amd.com> | 2023-08-14 15:22:35 +0100 |
| commit | 6551cfa8eb2960dbc27e2882b204c4e0aff0109f (patch) | |
| tree | 98cea3860238e1c60b4f6ae9d59a272388af3c9a /llvm/lib/CodeGen/MachineSink.cpp | |
| parent | 2e7ee4dc21430b0fe4c9ee306dc1d8c7986a6646 (diff) | |
| download | llvm-6551cfa8eb2960dbc27e2882b204c4e0aff0109f.zip llvm-6551cfa8eb2960dbc27e2882b204c4e0aff0109f.tar.gz llvm-6551cfa8eb2960dbc27e2882b204c4e0aff0109f.tar.bz2 | |
[CodeGen] Set regunitmasks for leaf regs to all instead of none
This simplifies every use of MCRegUnitMaskIterator.
Differential Revision: https://reviews.llvm.org/D157864
Diffstat (limited to 'llvm/lib/CodeGen/MachineSink.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineSink.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/llvm/lib/CodeGen/MachineSink.cpp b/llvm/lib/CodeGen/MachineSink.cpp index 8fda4c3..b4cbb93 100644 --- a/llvm/lib/CodeGen/MachineSink.cpp +++ b/llvm/lib/CodeGen/MachineSink.cpp @@ -1704,10 +1704,9 @@ static void updateLiveIn(MachineInstr *MI, MachineBasicBlock *SuccBB, for (auto U : UsedOpsInCopy) { Register SrcReg = MI->getOperand(U).getReg(); LaneBitmask Mask; - for (MCRegUnitMaskIterator S(SrcReg, TRI); S.isValid(); ++S) { + for (MCRegUnitMaskIterator S(SrcReg, TRI); S.isValid(); ++S) Mask |= (*S).second; - } - SuccBB->addLiveIn(SrcReg, Mask.any() ? Mask : LaneBitmask::getAll()); + SuccBB->addLiveIn(SrcReg, Mask); } SuccBB->sortUniqueLiveIns(); } |