Use report_fatal_error for unsupported calling conventions

The calling convention can be specified by the user in IR. Failing to support 
a particular calling convention isn't a programming error, and so relying on 
llvm_unreachable to catch and report an unsupported calling convention is not 
appropriate.

Differential Revision: https://reviews.llvm.org/D36830

llvm-svn: 311435

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Target/XCore/XCoreISelLowering.cpp b/llvm/lib/Target/XCore/XCoreISelLowering.cpp
index f9ead4e67d7..0ac5ecfa7e8 100644
--- a/llvm/lib/Target/XCore/XCoreISelLowering.cpp
+++ b/llvm/lib/Target/XCore/XCoreISelLowering.cpp
@@ -1046,7 +1046,7 @@ XCoreTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
   switch (CallConv)
   {
     default:
-      llvm_unreachable("Unsupported calling convention");
+      report_fatal_error("Unsupported calling convention");
     case CallingConv::Fast:
     case CallingConv::C:
       return LowerCCCCallTo(Chain, Callee, CallConv, isVarArg, isTailCall,
@@ -1243,7 +1243,7 @@ SDValue XCoreTargetLowering::LowerFormalArguments(
   switch (CallConv)
   {
     default:
-      llvm_unreachable("Unsupported calling convention");
+      report_fatal_error("Unsupported calling convention");
     case CallingConv::C:
     case CallingConv::Fast:
       return LowerCCCArguments(Chain, CallConv, isVarArg,