More dead code removal (using -Wunreachable-code)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148578 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 6 deletions

diff --git a/lib/CodeGen/Analysis.cpp b/lib/CodeGen/Analysis.cpp
index 6980e7d8d3..14e14c3d57 100644
--- a/lib/CodeGen/Analysis.cpp
+++ b/lib/CodeGen/Analysis.cpp
@@ -167,10 +167,8 @@ ISD::CondCode llvm::getFCmpCondCode(FCmpInst::Predicate Pred) {
   case FCmpInst::FCMP_ULE:   return ISD::SETULE;
   case FCmpInst::FCMP_UNE:   return ISD::SETUNE;
   case FCmpInst::FCMP_TRUE:  return ISD::SETTRUE;
-  default: break;
+  default: llvm_unreachable("Invalid FCmp predicate opcode!");
   }
-  llvm_unreachable("Invalid FCmp predicate opcode!");
-  return ISD::SETFALSE;
 }
 
 ISD::CondCode llvm::getFCmpCodeWithoutNaN(ISD::CondCode CC) {
@@ -181,9 +179,8 @@ ISD::CondCode llvm::getFCmpCodeWithoutNaN(ISD::CondCode CC) {
     case ISD::SETOLE: case ISD::SETULE: return ISD::SETLE;
     case ISD::SETOGT: case ISD::SETUGT: return ISD::SETGT;
     case ISD::SETOGE: case ISD::SETUGE: return ISD::SETGE;
-    default: break;
+    default: return CC;
   }
-  return CC;
 }
 
 /// getICmpCondCode - Return the ISD condition code corresponding to
@@ -203,7 +200,6 @@ ISD::CondCode llvm::getICmpCondCode(ICmpInst::Predicate Pred) {
   case ICmpInst::ICMP_UGT: return ISD::SETUGT;
   default:
     llvm_unreachable("Invalid ICmp predicate opcode!");
-    return ISD::SETNE;
   }
 }