llvm/test/CodeGen/AMDGPU/indirect-call.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -amdgpu-fixed-function-abi -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s

@gv.fptr0 = external hidden unnamed_addr addrspace(4) constant void()*, align 4
@gv.fptr1 = external hidden unnamed_addr addrspace(4) constant void(i32)*, align 4

define amdgpu_kernel void @test_indirect_call_sgpr_ptr() {
; GCN-LABEL: test_indirect_call_sgpr_ptr:
; GCN:         .amd_kernel_code_t
; GCN-NEXT:     amd_code_version_major = 1
; GCN-NEXT:     amd_code_version_minor = 2
; GCN-NEXT:     amd_machine_kind = 1
; GCN-NEXT:     amd_machine_version_major = 7
; GCN-NEXT:     amd_machine_version_minor = 0
; GCN-NEXT:     amd_machine_version_stepping = 0
; GCN-NEXT:     kernel_code_entry_byte_offset = 256
; GCN-NEXT:     kernel_code_prefetch_byte_size = 0
; GCN-NEXT:     granulated_workitem_vgpr_count = 7
; GCN-NEXT:     granulated_wavefront_sgpr_count = 5
; GCN-NEXT:     priority = 0
; GCN-NEXT:     float_mode = 240
; GCN-NEXT:     priv = 0
; GCN-NEXT:     enable_dx10_clamp = 1
; GCN-NEXT:     debug_mode = 0
; GCN-NEXT:     enable_ieee_mode = 1
; GCN-NEXT:     enable_wgp_mode = 0
; GCN-NEXT:     enable_mem_ordered = 0
; GCN-NEXT:     enable_fwd_progress = 0
; GCN-NEXT:     enable_sgpr_private_segment_wave_byte_offset = 1
; GCN-NEXT:     user_sgpr_count = 14
; GCN-NEXT:     enable_trap_handler = 0
; GCN-NEXT:     enable_sgpr_workgroup_id_x = 1
; GCN-NEXT:     enable_sgpr_workgroup_id_y = 1
; GCN-NEXT:     enable_sgpr_workgroup_id_z = 1
; GCN-NEXT:     enable_sgpr_workgroup_info = 0
; GCN-NEXT:     enable_vgpr_workitem_id = 2
; GCN-NEXT:     enable_exception_msb = 0
; GCN-NEXT:     granulated_lds_size = 0
; GCN-NEXT:     enable_exception = 0
; GCN-NEXT:     enable_sgpr_private_segment_buffer = 1
; GCN-NEXT:     enable_sgpr_dispatch_ptr = 1
; GCN-NEXT:     enable_sgpr_queue_ptr = 1
; GCN-NEXT:     enable_sgpr_kernarg_segment_ptr = 1
; GCN-NEXT:     enable_sgpr_dispatch_id = 1
; GCN-NEXT:     enable_sgpr_flat_scratch_init = 1
; GCN-NEXT:     enable_sgpr_private_segment_size = 0
; GCN-NEXT:     enable_sgpr_grid_workgroup_count_x = 0
; GCN-NEXT:     enable_sgpr_grid_workgroup_count_y = 0
; GCN-NEXT:     enable_sgpr_grid_workgroup_count_z = 0
; GCN-NEXT:     enable_wavefront_size32 = 0
; GCN-NEXT:     enable_ordered_append_gds = 0
; GCN-NEXT:     private_element_size = 1
; GCN-NEXT:     is_ptr64 = 1
; GCN-NEXT:     is_dynamic_callstack = 1
; GCN-NEXT:     is_debug_enabled = 0
; GCN-NEXT:     is_xnack_enabled = 1
; GCN-NEXT:     workitem_private_segment_byte_size = 16384
; GCN-NEXT:     workgroup_group_segment_byte_size = 0
; GCN-NEXT:     gds_segment_byte_size = 0
; GCN-NEXT:     kernarg_segment_byte_size = 0
; GCN-NEXT:     workgroup_fbarrier_count = 0
; GCN-NEXT:     wavefront_sgpr_count = 48
; GCN-NEXT:     workitem_vgpr_count = 32
; GCN-NEXT:     reserved_vgpr_first = 0
; GCN-NEXT:     reserved_vgpr_count = 0
; GCN-NEXT:     reserved_sgpr_first = 0
; GCN-NEXT:     reserved_sgpr_count = 0
; GCN-NEXT:     debug_wavefront_private_segment_offset_sgpr = 0
; GCN-NEXT:     debug_private_segment_buffer_sgpr = 0
; GCN-NEXT:     kernarg_segment_alignment = 4
; GCN-NEXT:     group_segment_alignment = 4
; GCN-NEXT:     private_segment_alignment = 4
; GCN-NEXT:     wavefront_size = 6
; GCN-NEXT:     call_convention = -1
; GCN-NEXT:     runtime_loader_kernel_symbol = 0
; GCN-NEXT:    .end_amd_kernel_code_t
; GCN-NEXT:  ; %bb.0:
; GCN-NEXT:    s_mov_b32 s32, 0
; GCN-NEXT:    s_mov_b32 flat_scratch_lo, s13
; GCN-NEXT:    s_add_u32 s12, s12, s17
; GCN-NEXT:    s_lshr_b32 flat_scratch_hi, s12, 8
; GCN-NEXT:    s_add_u32 s0, s0, s17
; GCN-NEXT:    s_addc_u32 s1, s1, 0
; GCN-NEXT:    s_mov_b32 s13, s15
; GCN-NEXT:    s_mov_b32 s12, s14
; GCN-NEXT:    s_getpc_b64 s[14:15]
; GCN-NEXT:    s_add_u32 s14, s14, gv.fptr0@rel32@lo+4
; GCN-NEXT:    s_addc_u32 s15, s15, gv.fptr0@rel32@hi+4
; GCN-NEXT:    s_load_dwordx2 s[18:19], s[14:15], 0x0
; GCN-NEXT:    v_lshlrev_b32_e32 v2, 20, v2
; GCN-NEXT:    v_lshlrev_b32_e32 v1, 10, v1
; GCN-NEXT:    v_or_b32_e32 v0, v0, v1
; GCN-NEXT:    v_or_b32_e32 v31, v0, v2
; GCN-NEXT:    s_mov_b32 s14, s16
; GCN-NEXT:    s_waitcnt lgkmcnt(0)
; GCN-NEXT:    s_swappc_b64 s[30:31], s[18:19]
; GCN-NEXT:    s_endpgm
  %fptr = load void()*, void()* addrspace(4)* @gv.fptr0
  call void %fptr()
  ret void
}

define amdgpu_kernel void @test_indirect_call_sgpr_ptr_arg() {
; GCN-LABEL: test_indirect_call_sgpr_ptr_arg:
; GCN:         .amd_kernel_code_t
; GCN-NEXT:     amd_code_version_major = 1
; GCN-NEXT:     amd_code_version_minor = 2
; GCN-NEXT:     amd_machine_kind = 1
; GCN-NEXT:     amd_machine_version_major = 7
; GCN-NEXT:     amd_machine_version_minor = 0
; GCN-NEXT:     amd_machine_version_stepping = 0
; GCN-NEXT:     kernel_code_entry_byte_offset = 256
; GCN-NEXT:     kernel_code_prefetch_byte_size = 0
; GCN-NEXT:     granulated_workitem_vgpr_count = 7
; GCN-NEXT:     granulated_wavefront_sgpr_count = 5
; GCN-NEXT:     priority = 0
; GCN-NEXT:     float_mode = 240
; GCN-NEXT:     priv = 0
; GCN-NEXT:     enable_dx10_clamp = 1
; GCN-NEXT:     debug_mode = 0
; GCN-NEXT:     enable_ieee_mode = 1
; GCN-NEXT:     enable_wgp_mode = 0
; GCN-NEXT:     enable_mem_ordered = 0
; GCN-NEXT:     enable_fwd_progress = 0
; GCN-NEXT:     enable_sgpr_private_segment_wave_byte_offset = 1
; GCN-NEXT:     user_sgpr_count = 14
; GCN-NEXT:     enable_trap_handler = 0
; GCN-NEXT:     enable_sgpr_workgroup_id_x = 1
; GCN-NEXT:     enable_sgpr_workgroup_id_y = 1
; GCN-NEXT:     enable_sgpr_workgroup_id_z = 1
; GCN-NEXT:     enable_sgpr_workgroup_info = 0
; GCN-NEXT:     enable_vgpr_workitem_id = 2
; GCN-NEXT:     enable_exception_msb = 0
; GCN-NEXT:     granulated_lds_size = 0
; GCN-NEXT:     enable_exception = 0
; GCN-NEXT:     enable_sgpr_private_segment_buffer = 1
; GCN-NEXT:     enable_sgpr_dispatch_ptr = 1
; GCN-NEXT:     enable_sgpr_queue_ptr = 1
; GCN-NEXT:     enable_sgpr_kernarg_segment_ptr = 1
; GCN-NEXT:     enable_sgpr_dispatch_id = 1
; GCN-NEXT:     enable_sgpr_flat_scratch_init = 1
; GCN-NEXT:     enable_sgpr_private_segment_size = 0
; GCN-NEXT:     enable_sgpr_grid_workgroup_count_x = 0
; GCN-NEXT:     enable_sgpr_grid_workgroup_count_y = 0
; GCN-NEXT:     enable_sgpr_grid_workgroup_count_z = 0
; GCN-NEXT:     enable_wavefront_size32 = 0
; GCN-NEXT:     enable_ordered_append_gds = 0
; GCN-NEXT:     private_element_size = 1
; GCN-NEXT:     is_ptr64 = 1
; GCN-NEXT:     is_dynamic_callstack = 1
; GCN-NEXT:     is_debug_enabled = 0
; GCN-NEXT:     is_xnack_enabled = 1
; GCN-NEXT:     workitem_private_segment_byte_size = 16384
; GCN-NEXT:     workgroup_group_segment_byte_size = 0
; GCN-NEXT:     gds_segment_byte_size = 0
; GCN-NEXT:     kernarg_segment_byte_size = 0
; GCN-NEXT:     workgroup_fbarrier_count = 0
; GCN-NEXT:     wavefront_sgpr_count = 48
; GCN-NEXT:     workitem_vgpr_count = 32
; GCN-NEXT:     reserved_vgpr_first = 0
; GCN-NEXT:     reserved_vgpr_count = 0
; GCN-NEXT:     reserved_sgpr_first = 0
; GCN-NEXT:     reserved_sgpr_count = 0
; GCN-NEXT:     debug_wavefront_private_segment_offset_sgpr = 0
; GCN-NEXT:     debug_private_segment_buffer_sgpr = 0
; GCN-NEXT:     kernarg_segment_alignment = 4
; GCN-NEXT:     group_segment_alignment = 4
; GCN-NEXT:     private_segment_alignment = 4
; GCN-NEXT:     wavefront_size = 6
; GCN-NEXT:     call_convention = -1
; GCN-NEXT:     runtime_loader_kernel_symbol = 0
; GCN-NEXT:    .end_amd_kernel_code_t
; GCN-NEXT:  ; %bb.0:
; GCN-NEXT:    s_mov_b32 s32, 0
; GCN-NEXT:    s_mov_b32 flat_scratch_lo, s13
; GCN-NEXT:    s_add_u32 s12, s12, s17
; GCN-NEXT:    s_lshr_b32 flat_scratch_hi, s12, 8
; GCN-NEXT:    s_add_u32 s0, s0, s17
; GCN-NEXT:    s_addc_u32 s1, s1, 0
; GCN-NEXT:    s_mov_b32 s13, s15
; GCN-NEXT:    s_mov_b32 s12, s14
; GCN-NEXT:    s_getpc_b64 s[14:15]
; GCN-NEXT:    s_add_u32 s14, s14, gv.fptr1@rel32@lo+4
; GCN-NEXT:    s_addc_u32 s15, s15, gv.fptr1@rel32@hi+4
; GCN-NEXT:    v_lshlrev_b32_e32 v2, 20, v2
; GCN-NEXT:    s_load_dwordx2 s[18:19], s[14:15], 0x0
; GCN-NEXT:    v_lshlrev_b32_e32 v1, 10, v1
; GCN-NEXT:    v_or_b32_e32 v0, v0, v1
; GCN-NEXT:    v_or_b32_e32 v31, v0, v2
; GCN-NEXT:    v_mov_b32_e32 v0, 0x7b
; GCN-NEXT:    s_mov_b32 s14, s16
; GCN-NEXT:    s_waitcnt lgkmcnt(0)
; GCN-NEXT:    s_swappc_b64 s[30:31], s[18:19]
; GCN-NEXT:    s_endpgm
  %fptr = load void(i32)*, void(i32)* addrspace(4)* @gv.fptr1
  call void %fptr(i32 123)
  ret void
}

; FIXME
; define void @test_indirect_call_vgpr_ptr(void()* %fptr) {
;   call void %fptr()
;   ret void
; }

; define void @test_indirect_call_vgpr_ptr_arg(void(i32)* %fptr) {
;   call void %fptr(i32 123)
;   ret void
; }