GlobalISel: support selecting G_GEP instructions.

They're basically just an alias for G_ADD on AArch64.

llvm-svn: 283807

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp b/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp
index addf60a102d..628e1708684 100644
--- a/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp
+++ b/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp
@@ -130,6 +130,7 @@ static unsigned selectBinaryOp(unsigned GenericOpc, unsigned RegBankID,
       case TargetOpcode::G_AND:
         return AArch64::ANDXrr;
       case TargetOpcode::G_ADD:
+      case TargetOpcode::G_GEP:
         return AArch64::ADDXrr;
       case TargetOpcode::G_SUB:
         return AArch64::SUBXrr;
@@ -340,7 +341,8 @@ bool AArch64InstructionSelector::select(MachineInstr &I) const {
   case TargetOpcode::G_SDIV:
   case TargetOpcode::G_UDIV:
   case TargetOpcode::G_ADD:
-  case TargetOpcode::G_SUB: {
+  case TargetOpcode::G_SUB:
+  case TargetOpcode::G_GEP: {
     // Reject the various things we don't support yet.
     if (unsupportedBinOp(I, RBI, MRI, TRI))
       return false;