[CodeGen] Use the TII hook for Noop insertion in BBSections (NFC)

Refactor BasicBlockSections to use the target-specific noop insertion
hook from TargetInstrInfo instead of building it ourselves. Using the
TII hook is both cleaner and makes it easier to extend BBSections to
non-X86 targets.

Differential Revision: https://reviews.llvm.org/D158303

1 files changed, 1 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/BasicBlockSections.cpp b/llvm/lib/CodeGen/BasicBlockSections.cpp
index 6967ca5..76fe1d9 100644
--- a/llvm/lib/CodeGen/BasicBlockSections.cpp
+++ b/llvm/lib/CodeGen/BasicBlockSections.cpp
@@ -285,9 +285,7 @@ void llvm::avoidZeroOffsetLandingPad(MachineFunction &MF) {
       MachineBasicBlock::iterator MI = MBB.begin();
       while (!MI->isEHLabel())
         ++MI;
-      MCInst Nop = MF.getSubtarget().getInstrInfo()->getNop();
-      BuildMI(MBB, MI, DebugLoc(),
-              MF.getSubtarget().getInstrInfo()->get(Nop.getOpcode()));
+      MF.getSubtarget().getInstrInfo()->insertNoop(MBB, MI);
     }
   }
 }