AMDGPU/GlobalISel: Fail on store to 32-bit address space

llvm-svn: 364766

Author: arsenm

llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp

@@ -549,6 +549,12 @@ bool AMDGPUInstructionSelector::selectG_STORE(MachineInstr &I) const {
   MachineFunction *MF = BB->getParent();
   MachineRegisterInfo &MRI = MF->getRegInfo();
   DebugLoc DL = I.getDebugLoc();
+  unsigned PtrSize = RBI.getSizeInBits(I.getOperand(1).getReg(), MRI, TRI);
+  if (PtrSize != 64) {
+    LLVM_DEBUG(dbgs() << "Unhandled address space\n");
+    return false;
+  }
+
   unsigned StoreSize = RBI.getSizeInBits(I.getOperand(0).getReg(), MRI, TRI);
   unsigned Opcode;
 

llvm/test/CodeGen/AMDGPU/GlobalISel/inst-select-implicit-def.mir

@@ -119,9 +119,9 @@ regBankSelected: true
 body: |
   bb.0:
     ; GCN-LABEL: name: implicit_def_p3_vgpr
-    ; GCN: [[DEF:%[0-9]+]]:vreg_64 = IMPLICIT_DEF
-    ; GCN: [[V_MOV_B32_e32_:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 4, implicit $exec
-    ; GCN: FLAT_STORE_DWORD [[DEF]], [[V_MOV_B32_e32_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GCN: [[DEF:%[0-9]+]]:vgpr(p3) = G_IMPLICIT_DEF
+    ; GCN: [[C:%[0-9]+]]:vgpr(s32) = G_CONSTANT i32 4
+    ; GCN: G_STORE [[C]](s32), [[DEF]](p3) :: (store 4, addrspace 1)
     %0:vgpr(p3) = G_IMPLICIT_DEF
     %1:vgpr(s32) = G_CONSTANT i32 4
     G_STORE %1, %0 :: (store 4, addrspace 1)