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

7 files changed, 12 insertions, 12 deletions

diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
index 0035afd6f92..e94e3d95a31 100644
--- a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -2668,7 +2668,7 @@ CCAssignFn *AArch64TargetLowering::CCAssignFnForCall(CallingConv::ID CC,
                                                      bool IsVarArg) const {
   switch (CC) {
   default:
-    llvm_unreachable("Unsupported calling convention.");
+    report_fatal_error("Unsupported calling convention.");
   case CallingConv::WebKit_JS:
     return CC_AArch64_WebKit_JS;
   case CallingConv::GHC:
diff --git a/llvm/lib/Target/ARM/ARMFastISel.cpp b/llvm/lib/Target/ARM/ARMFastISel.cpp
index bf00ef61c2d..420e4703502 100644
--- a/llvm/lib/Target/ARM/ARMFastISel.cpp
+++ b/llvm/lib/Target/ARM/ARMFastISel.cpp
@@ -1846,7 +1846,7 @@ CCAssignFn *ARMFastISel::CCAssignFnForCall(CallingConv::ID CC,
                                            bool isVarArg) {
   switch (CC) {
   default:
-    llvm_unreachable("Unsupported calling convention");
+    report_fatal_error("Unsupported calling convention");
   case CallingConv::Fast:
     if (Subtarget->hasVFP2() && !isVarArg) {
       if (!Subtarget->isAAPCS_ABI())
@@ -1880,7 +1880,7 @@ CCAssignFn *ARMFastISel::CCAssignFnForCall(CallingConv::ID CC,
     return (Return ? RetCC_ARM_APCS: CC_ARM_APCS);
   case CallingConv::GHC:
     if (Return)
-      llvm_unreachable("Can't return in GHC call convention");
+      report_fatal_error("Can't return in GHC call convention");
     else
       return CC_ARM_APCS_GHC;
   }
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp
index 63a96ccde78..a51aa79c353 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -1562,7 +1562,7 @@ ARMTargetLowering::getEffectiveCallingConv(CallingConv::ID CC,
                                            bool isVarArg) const {
   switch (CC) {
   default:
-    llvm_unreachable("Unsupported calling convention");
+    report_fatal-error("Unsupported calling convention");
   case CallingConv::ARM_AAPCS:
   case CallingConv::ARM_APCS:
   case CallingConv::GHC:
@@ -1611,7 +1611,7 @@ CCAssignFn *ARMTargetLowering::CCAssignFnForNode(CallingConv::ID CC,
                                                  bool isVarArg) const {
   switch (getEffectiveCallingConv(CC, isVarArg)) {
   default:
-    llvm_unreachable("Unsupported calling convention");
+    report_fatal_error("Unsupported calling convention");
   case CallingConv::ARM_APCS:
     return (Return ? RetCC_ARM_APCS : CC_ARM_APCS);
   case CallingConv::ARM_AAPCS:
diff --git a/llvm/lib/Target/BPF/BPFISelLowering.cpp b/llvm/lib/Target/BPF/BPFISelLowering.cpp
index 81b0aa7f8b9..360de1467b3 100644
--- a/llvm/lib/Target/BPF/BPFISelLowering.cpp
+++ b/llvm/lib/Target/BPF/BPFISelLowering.cpp
@@ -158,7 +158,7 @@ SDValue BPFTargetLowering::LowerFormalArguments(
     SelectionDAG &DAG, SmallVectorImpl<SDValue> &InVals) const {
   switch (CallConv) {
   default:
-    llvm_unreachable("Unsupported calling convention");
+    report_fatal_error("Unsupported calling convention");
   case CallingConv::C:
   case CallingConv::Fast:
     break;
diff --git a/llvm/lib/Target/Lanai/LanaiISelLowering.cpp b/llvm/lib/Target/Lanai/LanaiISelLowering.cpp
index 0a9cac2565f..f14e45c1a57 100644
--- a/llvm/lib/Target/Lanai/LanaiISelLowering.cpp
+++ b/llvm/lib/Target/Lanai/LanaiISelLowering.cpp
@@ -405,7 +405,7 @@ SDValue LanaiTargetLowering::LowerFormalArguments(
   case CallingConv::Fast:
     return LowerCCCArguments(Chain, CallConv, IsVarArg, Ins, DL, DAG, InVals);
   default:
-    llvm_unreachable("Unsupported calling convention");
+    report_fatal_error("Unsupported calling convention");
   }
 }
 
@@ -431,7 +431,7 @@ SDValue LanaiTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
     return LowerCCCCallTo(Chain, Callee, CallConv, IsVarArg, IsTailCall, Outs,
                           OutVals, Ins, DL, DAG, InVals);
   default:
-    llvm_unreachable("Unsupported calling convention");
+    report_fatal_error("Unsupported calling convention");
   }
 }
 
diff --git a/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp b/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp
index dae14fd301e..55e371f1d22 100644
--- a/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp
+++ b/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp
@@ -546,7 +546,7 @@ SDValue MSP430TargetLowering::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, Ins, dl, DAG, InVals);
@@ -576,7 +576,7 @@ MSP430TargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
 
   switch (CallConv) {
   default:
-    llvm_unreachable("Unsupported calling convention");
+    report_fatal_error("Unsupported calling convention");
   case CallingConv::MSP430_BUILTIN:
   case CallingConv::Fast:
   case CallingConv::C:
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,