[VENTUS][RISCV][fix] Avoid MBB label lost after optimization

2023-07-13 13:26:13 +08:00 · 2023-07-13 13:26:13 +08:00 · a9d1e6f524
parent 209306abc9
commit a9d1e6f524
1 changed files with 2 additions and 0 deletions
--- a/llvm/lib/Target/RISCV/VentusInsertJoinToVBranch.cpp
+++ b/llvm/lib/Target/RISCV/VentusInsertJoinToVBranch.cpp
@ -106,6 +106,8 @@ bool VentusInsertJoinToVBranch::runOnMachineFunction(MachineFunction &MF) {
      auto *PostIDomBB = MPDT->getNode(&MBB)->getIDom()->getBlock();
      assert(PostIDomBB);

+      PostIDomBB->setLabelMustBeEmitted();
+
      MCSymbol *AUIPCSymbol = MF.getContext().createNamedTempSymbol("pcrel_hi");
      MachineInstr *MIAUIPC = BuildMI(MBB, VBranch->getIterator(), DebugLoc(),
                                      TII->get(RISCV::AUIPC), RISCV::X6)