[GlobalISel] Make isel verification checks of vregs run under NDEBUG only.

llvm-svn: 356309

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/CodeGen/GlobalISel/InstructionSelect.cpp b/llvm/lib/CodeGen/GlobalISel/InstructionSelect.cpp
index 4434c7e208b..bbba28e5d6d 100644
--- a/llvm/lib/CodeGen/GlobalISel/InstructionSelect.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/InstructionSelect.cpp
@@ -89,10 +89,10 @@ bool InstructionSelect::runOnMachineFunction(MachineFunction &MF) {
                          "instruction is not legal", *MI);
       return false;
     }
-#endif
   // FIXME: We could introduce new blocks and will need to fix the outer loop.
   // Until then, keep track of the number of blocks to assert that we don't.
   const size_t NumBlocks = MF.size();
+#endif
 
   for (MachineBasicBlock *MBB : post_order(&MF)) {
     if (MBB->empty())
@@ -144,8 +144,6 @@ bool InstructionSelect::runOnMachineFunction(MachineFunction &MF) {
     }
   }
 
-  const TargetRegisterInfo &TRI = *MF.getSubtarget().getRegisterInfo();
-
   for (MachineBasicBlock &MBB : MF) {
     if (MBB.empty())
       continue;
@@ -177,6 +175,8 @@ bool InstructionSelect::runOnMachineFunction(MachineFunction &MF) {
     }
   }
 
+#ifndef NDEBUG
+  const TargetRegisterInfo &TRI = *MF.getSubtarget().getRegisterInfo();
   // Now that selection is complete, there are no more generic vregs.  Verify
   // that the size of the now-constrained vreg is unchanged and that it has a
   // register class.
@@ -215,7 +215,7 @@ bool InstructionSelect::runOnMachineFunction(MachineFunction &MF) {
     reportGISelFailure(MF, TPC, MORE, R);
     return false;
   }
-
+#endif
   auto &TLI = *MF.getSubtarget().getTargetLowering();
   TLI.finalizeLowering(MF);