[ARM] GlobalISel: Bail out on Thumb. NFC

Thumb is not supported yet, so bail out early.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293029 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMCallLowering.cpp b/lib/Target/ARM/ARMCallLowering.cpp
index 32b823f941d7c9e86134379b544dac1723b42a21..165095648008537c358f7cf05f49689c376e7750 100644 (file)
--- a/lib/Target/ARM/ARMCallLowering.cpp
+++ b/lib/Target/ARM/ARMCallLowering.cpp
@@ -17,6 +17,7 @@
 
 #include "ARMBaseInstrInfo.h"
 #include "ARMISelLowering.h"
+#include "ARMSubtarget.h"
 
 #include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
@@ -174,6 +175,9 @@ bool ARMCallLowering::lowerFormalArguments(MachineIRBuilder &MIRBuilder,
   auto DL = MIRBuilder.getMF().getDataLayout();
   auto &TLI = *getTLI<ARMTargetLowering>();
 
+  if (TLI.getSubtarget()->isThumb())
+    return false;
+
   auto &Args = F.getArgumentList();
   unsigned ArgIdx = 0;
   for (auto &Arg : Args) {