[llvm] 6611fbc - [AArch64] Dump a little more info about unimplemented reg-to-reg copies. NFC

[Jon Roelofs via llvm-commits]

Author: Jon Roelofs
Date: 2021-07-12T15:37:11-07:00
New Revision: 6611fbc62af59a1d28a9f310d2e95267911d4385

URL: https://github.com/llvm/llvm-project/commit/6611fbc62af59a1d28a9f310d2e95267911d4385
DIFF: https://github.com/llvm/llvm-project/commit/6611fbc62af59a1d28a9f310d2e95267911d4385.diff

LOG: [AArch64] Dump a little more info about unimplemented reg-to-reg copies. NFC

Added: 
    

Modified: 
    llvm/lib/Target/AArch64/AArch64InstrInfo.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
index e1f1c073346f..b03d421d3e6d 100644
--- a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
+++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
@@ -3621,6 +3621,11 @@ void AArch64InstrInfo::copyPhysReg(MachineBasicBlock &MBB,
     return;
   }
 
+#ifndef NDEBUG
+  const TargetRegisterInfo &TRI = getRegisterInfo();
+  errs() << TRI.getRegAsmName(DestReg) << " = COPY "
+         << TRI.getRegAsmName(SrcReg) << "\n";
+#endif
   llvm_unreachable("unimplemented reg-to-reg copy");
 }