diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2021-07-29 20:15:26 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2021-07-29 20:15:26 +0000 |
| commit | 344a3780b2e33f6ca763666c380202b18aab72a3 (patch) | |
| tree | f0b203ee6eb71d7fdd792373e3c81eb18d6934dd /llvm/lib/CodeGen/LiveRangeEdit.cpp | |
| parent | b60736ec1405bb0a8dd40989f67ef4c93da068ab (diff) | |
vendor/llvm-project/llvmorg-13-init-16847-g88e66fa60ae5vendor/llvm-project/llvmorg-12.0.1-rc2-0-ge7dac564cd0evendor/llvm-project/llvmorg-12.0.1-0-gfed41342a82f
Diffstat (limited to 'llvm/lib/CodeGen/LiveRangeEdit.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LiveRangeEdit.cpp | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/LiveRangeEdit.cpp b/llvm/lib/CodeGen/LiveRangeEdit.cpp index 037cb5426235..64a2dd275643 100644 --- a/llvm/lib/CodeGen/LiveRangeEdit.cpp +++ b/llvm/lib/CodeGen/LiveRangeEdit.cpp @@ -113,9 +113,10 @@ bool LiveRangeEdit::allUsesAvailableAt(const MachineInstr *OrigMI, if (!MO.isReg() || !MO.getReg() || !MO.readsReg()) continue; - // We can't remat physreg uses, unless it is a constant. + // We can't remat physreg uses, unless it is a constant or target wants + // to ignore this use. if (Register::isPhysicalRegister(MO.getReg())) { - if (MRI.isConstantPhysReg(MO.getReg())) + if (MRI.isConstantPhysReg(MO.getReg()) || TII.isIgnorableUse(MO)) continue; return false; } @@ -458,11 +459,8 @@ LiveRangeEdit::MRI_NoteNewVirtualRegister(Register VReg) { NewRegs.push_back(VReg); } -void -LiveRangeEdit::calculateRegClassAndHint(MachineFunction &MF, - const MachineLoopInfo &Loops, - const MachineBlockFrequencyInfo &MBFI) { - VirtRegAuxInfo VRAI(MF, LIS, *VRM, Loops, MBFI); +void LiveRangeEdit::calculateRegClassAndHint(MachineFunction &MF, + VirtRegAuxInfo &VRAI) { for (unsigned I = 0, Size = size(); I < Size; ++I) { LiveInterval &LI = LIS.getInterval(get(I)); if (MRI.recomputeRegClass(LI.reg())) |