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[RISCV] Move RISCVInsertVSETVLI::coalesceVSETVLIs back to before insertReadVL #96056

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Merged
merged 1 commit into from
Jun 19, 2024
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[RISCV] Move RISCVInsertVSETVLI::coalesceVSETVLIs back to before insertReadVL #96056

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10 changes: 5 additions & 5 deletions llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1813,11 +1813,6 @@ bool RISCVInsertVSETVLI::runOnMachineFunction(MachineFunction &MF) {
for (MachineBasicBlock &MBB : MF)
emitVSETVLIs(MBB);

// Insert PseudoReadVL after VLEFF/VLSEGFF and replace it with the vl output
// of VLEFF/VLSEGFF.
for (MachineBasicBlock &MBB : MF)
insertReadVL(MBB);

// Now that all vsetvlis are explicit, go through and do block local
// DSE and peephole based demanded fields based transforms. Note that
// this *must* be done outside the main dataflow so long as we allow
Expand All @@ -1827,6 +1822,11 @@ bool RISCVInsertVSETVLI::runOnMachineFunction(MachineFunction &MF) {
for (MachineBasicBlock &MBB : MF)
coalesceVSETVLIs(MBB);

// Insert PseudoReadVL after VLEFF/VLSEGFF and replace it with the vl output
// of VLEFF/VLSEGFF.
for (MachineBasicBlock &MBB : MF)
insertReadVL(MBB);

BlockInfo.clear();
return HaveVectorOp;
}
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