[llvm] 3c2e614 - [llvm][AArch64] Add missing default cases (#89930)

[via llvm-commits]

Author: Troy Butler
Date: 2024-04-24T11:04:28-07:00
New Revision: 3c2e614acd76495fda74f945dddd8bb89ae0f41f

URL: https://github.com/llvm/llvm-project/commit/3c2e614acd76495fda74f945dddd8bb89ae0f41f
DIFF: https://github.com/llvm/llvm-project/commit/3c2e614acd76495fda74f945dddd8bb89ae0f41f.diff

LOG: [llvm][AArch64] Add missing default cases (#89930)

Addresses issue #89709.

Functions getAUTOpcodeForKey() and getPACOpcodeForKey() contain switch
statements without default cases. Resolved by adding a call to
llvm_unreachable() at the end of each function.

---------

Signed-off-by: Troy-Butler <squintik at outlook.com>
Co-authored-by: Troy-Butler <squintik at outlook.com>

Added: 
    

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

Removed: 
    


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diff  --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.h b/llvm/lib/Target/AArch64/AArch64InstrInfo.h
index 9a2914891675c5..f434799c3982b4 100644
--- a/llvm/lib/Target/AArch64/AArch64InstrInfo.h
+++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.h
@@ -725,6 +725,7 @@ static inline unsigned getAUTOpcodeForKey(AArch64PACKey::ID K, bool Zero) {
   case DA: return Zero ? AArch64::AUTDZA : AArch64::AUTDA;
   case DB: return Zero ? AArch64::AUTDZB : AArch64::AUTDB;
   }
+  llvm_unreachable("Unhandled AArch64PACKey::ID enum");
 }
 
 /// Return PAC opcode to be used for a ptrauth sign using the given key, or its
@@ -737,6 +738,7 @@ static inline unsigned getPACOpcodeForKey(AArch64PACKey::ID K, bool Zero) {
   case DA: return Zero ? AArch64::PACDZA : AArch64::PACDA;
   case DB: return Zero ? AArch64::PACDZB : AArch64::PACDB;
   }
+  llvm_unreachable("Unhandled AArch64PACKey::ID enum");
 }
 
 // struct TSFlags {