[RISCV][GISel] Add regbank select for G_INVOKE_REGION_START.

topperc · topperc · commit 63251f49cf88 · 2023-11-09T20:16:45.000-08:00
It doesn't have any operands so the mapping is empty.
diff --git a/llvm/lib/Target/RISCV/GISel/RISCVRegisterBankInfo.cpp b/llvm/lib/Target/RISCV/GISel/RISCVRegisterBankInfo.cpp
@@ -133,6 +133,9 @@ RISCVRegisterBankInfo::getInstrMapping(const MachineInstr &MI) const {
   const ValueMapping *OperandsMapping = GPRValueMapping;
 
   switch (Opc) {
+  case TargetOpcode::G_INVOKE_REGION_START:
+    OperandsMapping = getOperandsMapping({});
+    break;
   case TargetOpcode::G_ADD:
   case TargetOpcode::G_SUB:
   case TargetOpcode::G_SHL:
