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clang-p2996/llvm/test/CodeGen/AMDGPU/indirect-call.ll
Matt Arsenault 722b8e0e5a AMDGPU: Invert ABI attribute handling 
Previously we assumed all callable functions did not need any
implicitly passed inputs, and added attributes to functions to
indicate when they were necessary. Requiring attributes for
correctness is pretty ugly, and it makes supporting indirect and
external calls more complicated.

This inverts the direction of the attributes, so an undecorated
function is assumed to need all implicit imputs. This enables
AMDGPUAttributor by default to mark when functions are proven to not
need a given input. This strips the equivalent functionality from the
legacy AMDGPUAnnotateKernelFeatures pass.

However, AMDGPUAnnotateKernelFeatures is not fully removed at this
point although it should be in the future. It is still necessary for
the two hacky amdgpu-calls and amdgpu-stack-objects attributes, which
would be better served by a trivial analysis on the IR during
selection. Additionally, AMDGPUAnnotateKernelFeatures still
redundantly handles the uniform-work-group-size attribute to be
removed in a future commit.

At this point when not using -amdgpu-fixed-function-abi, we are still
modifying the ABI based on these newly negated attributes. In the
future, this option will be removed and the locations for implicit
inputs will always be fixed. We will then use the new attributes to
avoid passing the values when unnecessary.
2021-09-09 18:24:28 -04:00

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -amdgpu-fixed-function-abi -mtriple=amdgcn-amd-amdhsa --amdhsa-code-object-version=2 -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(i8) {
; 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 = 4
; 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 = 0
; 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 = 4
; GCN-NEXT: workgroup_fbarrier_count = 0
; GCN-NEXT: wavefront_sgpr_count = 37
; 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_i32 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+12
; GCN-NEXT: v_lshlrev_b32_e32 v2, 20, v2
; GCN-NEXT: s_load_dwordx2 s[18:19], s[14:15], 0x0
; GCN-NEXT: s_add_u32 s8, s8, 8
; GCN-NEXT: s_addc_u32 s9, s9, 0
; 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(i8) {
; 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 = 4
; 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 = 0
; 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 = 4
; GCN-NEXT: workgroup_fbarrier_count = 0
; GCN-NEXT: wavefront_sgpr_count = 37
; 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_i32 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+12
; GCN-NEXT: v_lshlrev_b32_e32 v2, 20, v2
; GCN-NEXT: v_lshlrev_b32_e32 v1, 10, v1
; GCN-NEXT: s_load_dwordx2 s[18:19], s[14:15], 0x0
; GCN-NEXT: s_add_u32 s8, s8, 8
; GCN-NEXT: s_addc_u32 s9, s9, 0
; 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
}
define void @test_indirect_call_vgpr_ptr(void()* %fptr) {
; GCN-LABEL: test_indirect_call_vgpr_ptr:
; GCN: ; %bb.0:
; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT: s_or_saveexec_b64 s[16:17], -1
; GCN-NEXT: buffer_store_dword v40, off, s[0:3], s32 ; 4-byte Folded Spill
; GCN-NEXT: s_mov_b64 exec, s[16:17]
; GCN-NEXT: v_writelane_b32 v40, s33, 17
; GCN-NEXT: s_mov_b32 s33, s32
; GCN-NEXT: s_addk_i32 s32, 0x400
; GCN-NEXT: v_writelane_b32 v40, s34, 0
; GCN-NEXT: v_writelane_b32 v40, s35, 1
; GCN-NEXT: v_writelane_b32 v40, s36, 2
; GCN-NEXT: v_writelane_b32 v40, s37, 3
; GCN-NEXT: v_writelane_b32 v40, s38, 4
; GCN-NEXT: v_writelane_b32 v40, s39, 5
; GCN-NEXT: v_writelane_b32 v40, s40, 6
; GCN-NEXT: v_writelane_b32 v40, s41, 7
; GCN-NEXT: v_writelane_b32 v40, s42, 8
; GCN-NEXT: v_writelane_b32 v40, s43, 9
; GCN-NEXT: v_writelane_b32 v40, s44, 10
; GCN-NEXT: v_writelane_b32 v40, s46, 11
; GCN-NEXT: v_writelane_b32 v40, s47, 12
; GCN-NEXT: v_writelane_b32 v40, s48, 13
; GCN-NEXT: v_writelane_b32 v40, s49, 14
; GCN-NEXT: v_writelane_b32 v40, s30, 15
; GCN-NEXT: v_writelane_b32 v40, s31, 16
; GCN-NEXT: s_mov_b32 s42, s14
; GCN-NEXT: s_mov_b32 s43, s13
; GCN-NEXT: s_mov_b32 s44, s12
; GCN-NEXT: s_mov_b64 s[34:35], s[10:11]
; GCN-NEXT: s_mov_b64 s[36:37], s[8:9]
; GCN-NEXT: s_mov_b64 s[38:39], s[6:7]
; GCN-NEXT: s_mov_b64 s[40:41], s[4:5]
; GCN-NEXT: s_mov_b64 s[46:47], exec
; GCN-NEXT: BB2_1: ; =>This Inner Loop Header: Depth=1
; GCN-NEXT: v_readfirstlane_b32 s16, v0
; GCN-NEXT: v_readfirstlane_b32 s17, v1
; GCN-NEXT: v_cmp_eq_u64_e32 vcc, s[16:17], v[0:1]
; GCN-NEXT: s_and_saveexec_b64 s[48:49], vcc
; GCN-NEXT: s_mov_b64 s[4:5], s[40:41]
; GCN-NEXT: s_mov_b64 s[6:7], s[38:39]
; GCN-NEXT: s_mov_b64 s[8:9], s[36:37]
; GCN-NEXT: s_mov_b64 s[10:11], s[34:35]
; GCN-NEXT: s_mov_b32 s12, s44
; GCN-NEXT: s_mov_b32 s13, s43
; GCN-NEXT: s_mov_b32 s14, s42
; GCN-NEXT: s_swappc_b64 s[30:31], s[16:17]
; GCN-NEXT: ; implicit-def: $vgpr0_vgpr1
; GCN-NEXT: ; implicit-def: $vgpr31
; GCN-NEXT: s_xor_b64 exec, exec, s[48:49]
; GCN-NEXT: s_cbranch_execnz BB2_1
; GCN-NEXT: ; %bb.2:
; GCN-NEXT: s_mov_b64 exec, s[46:47]
; GCN-NEXT: v_readlane_b32 s4, v40, 15
; GCN-NEXT: v_readlane_b32 s5, v40, 16
; GCN-NEXT: v_readlane_b32 s49, v40, 14
; GCN-NEXT: v_readlane_b32 s48, v40, 13
; GCN-NEXT: v_readlane_b32 s47, v40, 12
; GCN-NEXT: v_readlane_b32 s46, v40, 11
; GCN-NEXT: v_readlane_b32 s44, v40, 10
; GCN-NEXT: v_readlane_b32 s43, v40, 9
; GCN-NEXT: v_readlane_b32 s42, v40, 8
; GCN-NEXT: v_readlane_b32 s41, v40, 7
; GCN-NEXT: v_readlane_b32 s40, v40, 6
; GCN-NEXT: v_readlane_b32 s39, v40, 5
; GCN-NEXT: v_readlane_b32 s38, v40, 4
; GCN-NEXT: v_readlane_b32 s37, v40, 3
; GCN-NEXT: v_readlane_b32 s36, v40, 2
; GCN-NEXT: v_readlane_b32 s35, v40, 1
; GCN-NEXT: v_readlane_b32 s34, v40, 0
; GCN-NEXT: s_addk_i32 s32, 0xfc00
; GCN-NEXT: v_readlane_b32 s33, v40, 17
; GCN-NEXT: s_or_saveexec_b64 s[6:7], -1
; GCN-NEXT: buffer_load_dword v40, off, s[0:3], s32 ; 4-byte Folded Reload
; GCN-NEXT: s_mov_b64 exec, s[6:7]
; GCN-NEXT: s_waitcnt vmcnt(0)
; GCN-NEXT: s_setpc_b64 s[4:5]
call void %fptr()
ret void
}
define void @test_indirect_call_vgpr_ptr_arg(void(i32)* %fptr) {
; GCN-LABEL: test_indirect_call_vgpr_ptr_arg:
; GCN: ; %bb.0:
; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT: s_or_saveexec_b64 s[16:17], -1
; GCN-NEXT: buffer_store_dword v40, off, s[0:3], s32 ; 4-byte Folded Spill
; GCN-NEXT: s_mov_b64 exec, s[16:17]
; GCN-NEXT: v_writelane_b32 v40, s33, 17
; GCN-NEXT: s_mov_b32 s33, s32
; GCN-NEXT: s_addk_i32 s32, 0x400
; GCN-NEXT: v_writelane_b32 v40, s34, 0
; GCN-NEXT: v_writelane_b32 v40, s35, 1
; GCN-NEXT: v_writelane_b32 v40, s36, 2
; GCN-NEXT: v_writelane_b32 v40, s37, 3
; GCN-NEXT: v_writelane_b32 v40, s38, 4
; GCN-NEXT: v_writelane_b32 v40, s39, 5
; GCN-NEXT: v_writelane_b32 v40, s40, 6
; GCN-NEXT: v_writelane_b32 v40, s41, 7
; GCN-NEXT: v_writelane_b32 v40, s42, 8
; GCN-NEXT: v_writelane_b32 v40, s43, 9
; GCN-NEXT: v_writelane_b32 v40, s44, 10
; GCN-NEXT: v_writelane_b32 v40, s46, 11
; GCN-NEXT: v_writelane_b32 v40, s47, 12
; GCN-NEXT: v_writelane_b32 v40, s48, 13
; GCN-NEXT: v_writelane_b32 v40, s49, 14
; GCN-NEXT: v_writelane_b32 v40, s30, 15
; GCN-NEXT: v_writelane_b32 v40, s31, 16
; GCN-NEXT: s_mov_b32 s42, s14
; GCN-NEXT: s_mov_b32 s43, s13
; GCN-NEXT: s_mov_b32 s44, s12
; GCN-NEXT: s_mov_b64 s[34:35], s[10:11]
; GCN-NEXT: s_mov_b64 s[36:37], s[8:9]
; GCN-NEXT: s_mov_b64 s[38:39], s[6:7]
; GCN-NEXT: s_mov_b64 s[40:41], s[4:5]
; GCN-NEXT: s_mov_b64 s[46:47], exec
; GCN-NEXT: BB3_1: ; =>This Inner Loop Header: Depth=1
; GCN-NEXT: v_readfirstlane_b32 s16, v0
; GCN-NEXT: v_readfirstlane_b32 s17, v1
; GCN-NEXT: v_cmp_eq_u64_e32 vcc, s[16:17], v[0:1]
; GCN-NEXT: s_and_saveexec_b64 s[48:49], vcc
; GCN-NEXT: v_mov_b32_e32 v0, 0x7b
; GCN-NEXT: s_mov_b64 s[4:5], s[40:41]
; GCN-NEXT: s_mov_b64 s[6:7], s[38:39]
; GCN-NEXT: s_mov_b64 s[8:9], s[36:37]
; GCN-NEXT: s_mov_b64 s[10:11], s[34:35]
; GCN-NEXT: s_mov_b32 s12, s44
; GCN-NEXT: s_mov_b32 s13, s43
; GCN-NEXT: s_mov_b32 s14, s42
; GCN-NEXT: s_swappc_b64 s[30:31], s[16:17]
; GCN-NEXT: ; implicit-def: $vgpr0_vgpr1
; GCN-NEXT: ; implicit-def: $vgpr31
; GCN-NEXT: s_xor_b64 exec, exec, s[48:49]
; GCN-NEXT: s_cbranch_execnz BB3_1
; GCN-NEXT: ; %bb.2:
; GCN-NEXT: s_mov_b64 exec, s[46:47]
; GCN-NEXT: v_readlane_b32 s4, v40, 15
; GCN-NEXT: v_readlane_b32 s5, v40, 16
; GCN-NEXT: v_readlane_b32 s49, v40, 14
; GCN-NEXT: v_readlane_b32 s48, v40, 13
; GCN-NEXT: v_readlane_b32 s47, v40, 12
; GCN-NEXT: v_readlane_b32 s46, v40, 11
; GCN-NEXT: v_readlane_b32 s44, v40, 10
; GCN-NEXT: v_readlane_b32 s43, v40, 9
; GCN-NEXT: v_readlane_b32 s42, v40, 8
; GCN-NEXT: v_readlane_b32 s41, v40, 7
; GCN-NEXT: v_readlane_b32 s40, v40, 6
; GCN-NEXT: v_readlane_b32 s39, v40, 5
; GCN-NEXT: v_readlane_b32 s38, v40, 4
; GCN-NEXT: v_readlane_b32 s37, v40, 3
; GCN-NEXT: v_readlane_b32 s36, v40, 2
; GCN-NEXT: v_readlane_b32 s35, v40, 1
; GCN-NEXT: v_readlane_b32 s34, v40, 0
; GCN-NEXT: s_addk_i32 s32, 0xfc00
; GCN-NEXT: v_readlane_b32 s33, v40, 17
; GCN-NEXT: s_or_saveexec_b64 s[6:7], -1
; GCN-NEXT: buffer_load_dword v40, off, s[0:3], s32 ; 4-byte Folded Reload
; GCN-NEXT: s_mov_b64 exec, s[6:7]
; GCN-NEXT: s_waitcnt vmcnt(0)
; GCN-NEXT: s_setpc_b64 s[4:5]
call void %fptr(i32 123)
ret void
}
define i32 @test_indirect_call_vgpr_ptr_ret(i32()* %fptr) {
; GCN-LABEL: test_indirect_call_vgpr_ptr_ret:
; GCN: ; %bb.0:
; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT: s_or_saveexec_b64 s[16:17], -1
; GCN-NEXT: buffer_store_dword v40, off, s[0:3], s32 ; 4-byte Folded Spill
; GCN-NEXT: s_mov_b64 exec, s[16:17]
; GCN-NEXT: v_writelane_b32 v40, s33, 17
; GCN-NEXT: s_mov_b32 s33, s32
; GCN-NEXT: s_addk_i32 s32, 0x400
; GCN-NEXT: v_writelane_b32 v40, s34, 0
; GCN-NEXT: v_writelane_b32 v40, s35, 1
; GCN-NEXT: v_writelane_b32 v40, s36, 2
; GCN-NEXT: v_writelane_b32 v40, s37, 3
; GCN-NEXT: v_writelane_b32 v40, s38, 4
; GCN-NEXT: v_writelane_b32 v40, s39, 5
; GCN-NEXT: v_writelane_b32 v40, s40, 6
; GCN-NEXT: v_writelane_b32 v40, s41, 7
; GCN-NEXT: v_writelane_b32 v40, s42, 8
; GCN-NEXT: v_writelane_b32 v40, s43, 9
; GCN-NEXT: v_writelane_b32 v40, s44, 10
; GCN-NEXT: v_writelane_b32 v40, s46, 11
; GCN-NEXT: v_writelane_b32 v40, s47, 12
; GCN-NEXT: v_writelane_b32 v40, s48, 13
; GCN-NEXT: v_writelane_b32 v40, s49, 14
; GCN-NEXT: v_writelane_b32 v40, s30, 15
; GCN-NEXT: v_writelane_b32 v40, s31, 16
; GCN-NEXT: s_mov_b32 s42, s14
; GCN-NEXT: s_mov_b32 s43, s13
; GCN-NEXT: s_mov_b32 s44, s12
; GCN-NEXT: s_mov_b64 s[34:35], s[10:11]
; GCN-NEXT: s_mov_b64 s[36:37], s[8:9]
; GCN-NEXT: s_mov_b64 s[38:39], s[6:7]
; GCN-NEXT: s_mov_b64 s[40:41], s[4:5]
; GCN-NEXT: s_mov_b64 s[46:47], exec
; GCN-NEXT: BB4_1: ; =>This Inner Loop Header: Depth=1
; GCN-NEXT: v_readfirstlane_b32 s16, v0
; GCN-NEXT: v_readfirstlane_b32 s17, v1
; GCN-NEXT: v_cmp_eq_u64_e32 vcc, s[16:17], v[0:1]
; GCN-NEXT: s_and_saveexec_b64 s[48:49], vcc
; GCN-NEXT: s_mov_b64 s[4:5], s[40:41]
; GCN-NEXT: s_mov_b64 s[6:7], s[38:39]
; GCN-NEXT: s_mov_b64 s[8:9], s[36:37]
; GCN-NEXT: s_mov_b64 s[10:11], s[34:35]
; GCN-NEXT: s_mov_b32 s12, s44
; GCN-NEXT: s_mov_b32 s13, s43
; GCN-NEXT: s_mov_b32 s14, s42
; GCN-NEXT: s_swappc_b64 s[30:31], s[16:17]
; GCN-NEXT: v_mov_b32_e32 v2, v0
; GCN-NEXT: ; implicit-def: $vgpr0_vgpr1
; GCN-NEXT: ; implicit-def: $vgpr31
; GCN-NEXT: s_xor_b64 exec, exec, s[48:49]
; GCN-NEXT: s_cbranch_execnz BB4_1
; GCN-NEXT: ; %bb.2:
; GCN-NEXT: s_mov_b64 exec, s[46:47]
; GCN-NEXT: v_add_i32_e32 v0, vcc, 1, v2
; GCN-NEXT: v_readlane_b32 s4, v40, 15
; GCN-NEXT: v_readlane_b32 s5, v40, 16
; GCN-NEXT: v_readlane_b32 s49, v40, 14
; GCN-NEXT: v_readlane_b32 s48, v40, 13
; GCN-NEXT: v_readlane_b32 s47, v40, 12
; GCN-NEXT: v_readlane_b32 s46, v40, 11
; GCN-NEXT: v_readlane_b32 s44, v40, 10
; GCN-NEXT: v_readlane_b32 s43, v40, 9
; GCN-NEXT: v_readlane_b32 s42, v40, 8
; GCN-NEXT: v_readlane_b32 s41, v40, 7
; GCN-NEXT: v_readlane_b32 s40, v40, 6
; GCN-NEXT: v_readlane_b32 s39, v40, 5
; GCN-NEXT: v_readlane_b32 s38, v40, 4
; GCN-NEXT: v_readlane_b32 s37, v40, 3
; GCN-NEXT: v_readlane_b32 s36, v40, 2
; GCN-NEXT: v_readlane_b32 s35, v40, 1
; GCN-NEXT: v_readlane_b32 s34, v40, 0
; GCN-NEXT: s_addk_i32 s32, 0xfc00
; GCN-NEXT: v_readlane_b32 s33, v40, 17
; GCN-NEXT: s_or_saveexec_b64 s[6:7], -1
; GCN-NEXT: buffer_load_dword v40, off, s[0:3], s32 ; 4-byte Folded Reload
; GCN-NEXT: s_mov_b64 exec, s[6:7]
; GCN-NEXT: s_waitcnt vmcnt(0)
; GCN-NEXT: s_setpc_b64 s[4:5]
%a = call i32 %fptr()
%b = add i32 %a, 1
ret i32 %b
}
define void @test_indirect_call_vgpr_ptr_in_branch(void()* %fptr, i1 %cond) {
; GCN-LABEL: test_indirect_call_vgpr_ptr_in_branch:
; GCN: ; %bb.0: ; %bb0
; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT: s_or_saveexec_b64 s[16:17], -1
; GCN-NEXT: buffer_store_dword v40, off, s[0:3], s32 ; 4-byte Folded Spill
; GCN-NEXT: s_mov_b64 exec, s[16:17]
; GCN-NEXT: v_writelane_b32 v40, s33, 19
; GCN-NEXT: s_mov_b32 s33, s32
; GCN-NEXT: s_addk_i32 s32, 0x400
; GCN-NEXT: v_writelane_b32 v40, s34, 0
; GCN-NEXT: v_writelane_b32 v40, s35, 1
; GCN-NEXT: v_writelane_b32 v40, s36, 2
; GCN-NEXT: v_writelane_b32 v40, s37, 3
; GCN-NEXT: v_writelane_b32 v40, s38, 4
; GCN-NEXT: v_writelane_b32 v40, s39, 5
; GCN-NEXT: v_writelane_b32 v40, s40, 6
; GCN-NEXT: v_writelane_b32 v40, s41, 7
; GCN-NEXT: v_writelane_b32 v40, s42, 8
; GCN-NEXT: v_writelane_b32 v40, s43, 9
; GCN-NEXT: v_writelane_b32 v40, s44, 10
; GCN-NEXT: v_writelane_b32 v40, s46, 11
; GCN-NEXT: v_writelane_b32 v40, s47, 12
; GCN-NEXT: v_writelane_b32 v40, s48, 13
; GCN-NEXT: v_writelane_b32 v40, s49, 14
; GCN-NEXT: v_writelane_b32 v40, s50, 15
; GCN-NEXT: v_writelane_b32 v40, s51, 16
; GCN-NEXT: s_mov_b32 s42, s14
; GCN-NEXT: s_mov_b32 s43, s13
; GCN-NEXT: s_mov_b32 s44, s12
; GCN-NEXT: s_mov_b64 s[34:35], s[10:11]
; GCN-NEXT: s_mov_b64 s[36:37], s[8:9]
; GCN-NEXT: s_mov_b64 s[38:39], s[6:7]
; GCN-NEXT: s_mov_b64 s[40:41], s[4:5]
; GCN-NEXT: v_and_b32_e32 v2, 1, v2
; GCN-NEXT: v_cmp_eq_u32_e32 vcc, 1, v2
; GCN-NEXT: s_and_saveexec_b64 s[46:47], vcc
; GCN-NEXT: s_cbranch_execz BB5_4
; GCN-NEXT: ; %bb.1: ; %bb1
; GCN-NEXT: v_writelane_b32 v40, s30, 17
; GCN-NEXT: v_writelane_b32 v40, s31, 18
; GCN-NEXT: s_mov_b64 s[48:49], exec
; GCN-NEXT: BB5_2: ; =>This Inner Loop Header: Depth=1
; GCN-NEXT: v_readfirstlane_b32 s16, v0
; GCN-NEXT: v_readfirstlane_b32 s17, v1
; GCN-NEXT: v_cmp_eq_u64_e32 vcc, s[16:17], v[0:1]
; GCN-NEXT: s_and_saveexec_b64 s[50:51], vcc
; GCN-NEXT: s_mov_b64 s[4:5], s[40:41]
; GCN-NEXT: s_mov_b64 s[6:7], s[38:39]
; GCN-NEXT: s_mov_b64 s[8:9], s[36:37]
; GCN-NEXT: s_mov_b64 s[10:11], s[34:35]
; GCN-NEXT: s_mov_b32 s12, s44
; GCN-NEXT: s_mov_b32 s13, s43
; GCN-NEXT: s_mov_b32 s14, s42
; GCN-NEXT: s_swappc_b64 s[30:31], s[16:17]
; GCN-NEXT: ; implicit-def: $vgpr0_vgpr1
; GCN-NEXT: ; implicit-def: $vgpr31
; GCN-NEXT: s_xor_b64 exec, exec, s[50:51]
; GCN-NEXT: s_cbranch_execnz BB5_2
; GCN-NEXT: ; %bb.3:
; GCN-NEXT: s_mov_b64 exec, s[48:49]
; GCN-NEXT: v_readlane_b32 s30, v40, 17
; GCN-NEXT: v_readlane_b32 s31, v40, 18
; GCN-NEXT: BB5_4: ; %bb2
; GCN-NEXT: s_or_b64 exec, exec, s[46:47]
; GCN-NEXT: v_readlane_b32 s51, v40, 16
; GCN-NEXT: v_readlane_b32 s50, v40, 15
; GCN-NEXT: v_readlane_b32 s49, v40, 14
; GCN-NEXT: v_readlane_b32 s48, v40, 13
; GCN-NEXT: v_readlane_b32 s47, v40, 12
; GCN-NEXT: v_readlane_b32 s46, v40, 11
; GCN-NEXT: v_readlane_b32 s44, v40, 10
; GCN-NEXT: v_readlane_b32 s43, v40, 9
; GCN-NEXT: v_readlane_b32 s42, v40, 8
; GCN-NEXT: v_readlane_b32 s41, v40, 7
; GCN-NEXT: v_readlane_b32 s40, v40, 6
; GCN-NEXT: v_readlane_b32 s39, v40, 5
; GCN-NEXT: v_readlane_b32 s38, v40, 4
; GCN-NEXT: v_readlane_b32 s37, v40, 3
; GCN-NEXT: v_readlane_b32 s36, v40, 2
; GCN-NEXT: v_readlane_b32 s35, v40, 1
; GCN-NEXT: v_readlane_b32 s34, v40, 0
; GCN-NEXT: s_addk_i32 s32, 0xfc00
; GCN-NEXT: v_readlane_b32 s33, v40, 19
; GCN-NEXT: s_or_saveexec_b64 s[4:5], -1
; GCN-NEXT: buffer_load_dword v40, off, s[0:3], s32 ; 4-byte Folded Reload
; GCN-NEXT: s_mov_b64 exec, s[4:5]
; GCN-NEXT: s_waitcnt vmcnt(0)
; GCN-NEXT: s_setpc_b64 s[30:31]
bb0:
br i1 %cond, label %bb1, label %bb2
bb1:
call void %fptr()
br label %bb2
bb2:
ret void
}
define void @test_indirect_call_vgpr_ptr_inreg_arg(void(i32)* %fptr) {
; GCN-LABEL: test_indirect_call_vgpr_ptr_inreg_arg:
; GCN: ; %bb.0:
; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT: s_or_saveexec_b64 s[4:5], -1
; GCN-NEXT: buffer_store_dword v40, off, s[0:3], s32 ; 4-byte Folded Spill
; GCN-NEXT: s_mov_b64 exec, s[4:5]
; GCN-NEXT: v_writelane_b32 v40, s33, 6
; GCN-NEXT: s_mov_b32 s33, s32
; GCN-NEXT: s_addk_i32 s32, 0x400
; GCN-NEXT: v_writelane_b32 v40, s34, 0
; GCN-NEXT: v_writelane_b32 v40, s35, 1
; GCN-NEXT: v_writelane_b32 v40, s36, 2
; GCN-NEXT: v_writelane_b32 v40, s37, 3
; GCN-NEXT: v_writelane_b32 v40, s30, 4
; GCN-NEXT: v_writelane_b32 v40, s31, 5
; GCN-NEXT: s_mov_b64 s[34:35], exec
; GCN-NEXT: BB6_1: ; =>This Inner Loop Header: Depth=1
; GCN-NEXT: v_readfirstlane_b32 s6, v0
; GCN-NEXT: v_readfirstlane_b32 s7, v1
; GCN-NEXT: v_cmp_eq_u64_e32 vcc, s[6:7], v[0:1]
; GCN-NEXT: s_and_saveexec_b64 s[36:37], vcc
; GCN-NEXT: s_movk_i32 s4, 0x7b
; GCN-NEXT: s_swappc_b64 s[30:31], s[6:7]
; GCN-NEXT: ; implicit-def: $vgpr0_vgpr1
; GCN-NEXT: s_xor_b64 exec, exec, s[36:37]
; GCN-NEXT: s_cbranch_execnz BB6_1
; GCN-NEXT: ; %bb.2:
; GCN-NEXT: s_mov_b64 exec, s[34:35]
; GCN-NEXT: v_readlane_b32 s4, v40, 4
; GCN-NEXT: v_readlane_b32 s5, v40, 5
; GCN-NEXT: v_readlane_b32 s37, v40, 3
; GCN-NEXT: v_readlane_b32 s36, v40, 2
; GCN-NEXT: v_readlane_b32 s35, v40, 1
; GCN-NEXT: v_readlane_b32 s34, v40, 0
; GCN-NEXT: s_addk_i32 s32, 0xfc00
; GCN-NEXT: v_readlane_b32 s33, v40, 6
; GCN-NEXT: s_or_saveexec_b64 s[6:7], -1
; GCN-NEXT: buffer_load_dword v40, off, s[0:3], s32 ; 4-byte Folded Reload
; GCN-NEXT: s_mov_b64 exec, s[6:7]
; GCN-NEXT: s_waitcnt vmcnt(0)
; GCN-NEXT: s_setpc_b64 s[4:5]
call amdgpu_gfx void %fptr(i32 inreg 123)
ret void
}
define i32 @test_indirect_call_vgpr_ptr_arg_and_reuse(i32 %i, void(i32)* %fptr) {
; GCN-LABEL: test_indirect_call_vgpr_ptr_arg_and_reuse:
; GCN: ; %bb.0:
; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT: s_or_saveexec_b64 s[4:5], -1
; GCN-NEXT: buffer_store_dword v40, off, s[0:3], s32 offset:4 ; 4-byte Folded Spill
; GCN-NEXT: s_mov_b64 exec, s[4:5]
; GCN-NEXT: v_writelane_b32 v40, s33, 6
; GCN-NEXT: s_mov_b32 s33, s32
; GCN-NEXT: s_addk_i32 s32, 0x400
; GCN-NEXT: buffer_store_dword v41, off, s[0:3], s33 ; 4-byte Folded Spill
; GCN-NEXT: v_writelane_b32 v40, s34, 0
; GCN-NEXT: v_writelane_b32 v40, s35, 1
; GCN-NEXT: v_writelane_b32 v40, s36, 2
; GCN-NEXT: v_writelane_b32 v40, s37, 3
; GCN-NEXT: v_writelane_b32 v40, s30, 4
; GCN-NEXT: v_writelane_b32 v40, s31, 5
; GCN-NEXT: v_mov_b32_e32 v41, v0
; GCN-NEXT: s_mov_b64 s[34:35], exec
; GCN-NEXT: BB7_1: ; =>This Inner Loop Header: Depth=1
; GCN-NEXT: v_readfirstlane_b32 s4, v1
; GCN-NEXT: v_readfirstlane_b32 s5, v2
; GCN-NEXT: v_cmp_eq_u64_e32 vcc, s[4:5], v[1:2]
; GCN-NEXT: s_and_saveexec_b64 s[36:37], vcc
; GCN-NEXT: v_mov_b32_e32 v0, v41
; GCN-NEXT: s_swappc_b64 s[30:31], s[4:5]
; GCN-NEXT: ; implicit-def: $vgpr1_vgpr2
; GCN-NEXT: s_xor_b64 exec, exec, s[36:37]
; GCN-NEXT: s_cbranch_execnz BB7_1
; GCN-NEXT: ; %bb.2:
; GCN-NEXT: s_mov_b64 exec, s[34:35]
; GCN-NEXT: v_mov_b32_e32 v0, v41
; GCN-NEXT: v_readlane_b32 s4, v40, 4
; GCN-NEXT: v_readlane_b32 s5, v40, 5
; GCN-NEXT: v_readlane_b32 s37, v40, 3
; GCN-NEXT: v_readlane_b32 s36, v40, 2
; GCN-NEXT: v_readlane_b32 s35, v40, 1
; GCN-NEXT: v_readlane_b32 s34, v40, 0
; GCN-NEXT: buffer_load_dword v41, off, s[0:3], s33 ; 4-byte Folded Reload
; GCN-NEXT: s_addk_i32 s32, 0xfc00
; GCN-NEXT: v_readlane_b32 s33, v40, 6
; GCN-NEXT: s_or_saveexec_b64 s[6:7], -1
; GCN-NEXT: buffer_load_dword v40, off, s[0:3], s32 offset:4 ; 4-byte Folded Reload
; GCN-NEXT: s_mov_b64 exec, s[6:7]
; GCN-NEXT: s_waitcnt vmcnt(0)
; GCN-NEXT: s_setpc_b64 s[4:5]
call amdgpu_gfx void %fptr(i32 %i)
ret i32 %i
}
; Use a variable inside a waterfall loop and use the return variable after the loop.
; TODO The argument and return variable could be in the same physical register, but the register
; allocator is not able to do that because the return value clashes with the liverange of an
; IMPLICIT_DEF of the argument.
define i32 @test_indirect_call_vgpr_ptr_arg_and_return(i32 %i, i32(i32)* %fptr) {
; GCN-LABEL: test_indirect_call_vgpr_ptr_arg_and_return:
; GCN: ; %bb.0:
; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT: s_or_saveexec_b64 s[4:5], -1
; GCN-NEXT: buffer_store_dword v40, off, s[0:3], s32 ; 4-byte Folded Spill
; GCN-NEXT: s_mov_b64 exec, s[4:5]
; GCN-NEXT: v_writelane_b32 v40, s33, 6
; GCN-NEXT: s_mov_b32 s33, s32
; GCN-NEXT: s_addk_i32 s32, 0x400
; GCN-NEXT: v_writelane_b32 v40, s34, 0
; GCN-NEXT: v_writelane_b32 v40, s35, 1
; GCN-NEXT: v_writelane_b32 v40, s36, 2
; GCN-NEXT: v_writelane_b32 v40, s37, 3
; GCN-NEXT: v_writelane_b32 v40, s30, 4
; GCN-NEXT: v_writelane_b32 v40, s31, 5
; GCN-NEXT: s_mov_b64 s[34:35], exec
; GCN-NEXT: BB8_1: ; =>This Inner Loop Header: Depth=1
; GCN-NEXT: v_readfirstlane_b32 s4, v1
; GCN-NEXT: v_readfirstlane_b32 s5, v2
; GCN-NEXT: v_cmp_eq_u64_e32 vcc, s[4:5], v[1:2]
; GCN-NEXT: s_and_saveexec_b64 s[36:37], vcc
; GCN-NEXT: s_swappc_b64 s[30:31], s[4:5]
; GCN-NEXT: v_mov_b32_e32 v3, v0
; GCN-NEXT: ; implicit-def: $vgpr1_vgpr2
; GCN-NEXT: ; implicit-def: $vgpr0
; GCN-NEXT: s_xor_b64 exec, exec, s[36:37]
; GCN-NEXT: s_cbranch_execnz BB8_1
; GCN-NEXT: ; %bb.2:
; GCN-NEXT: s_mov_b64 exec, s[34:35]
; GCN-NEXT: v_mov_b32_e32 v0, v3
; GCN-NEXT: v_readlane_b32 s4, v40, 4
; GCN-NEXT: v_readlane_b32 s5, v40, 5
; GCN-NEXT: v_readlane_b32 s37, v40, 3
; GCN-NEXT: v_readlane_b32 s36, v40, 2
; GCN-NEXT: v_readlane_b32 s35, v40, 1
; GCN-NEXT: v_readlane_b32 s34, v40, 0
; GCN-NEXT: s_addk_i32 s32, 0xfc00
; GCN-NEXT: v_readlane_b32 s33, v40, 6
; GCN-NEXT: s_or_saveexec_b64 s[6:7], -1
; GCN-NEXT: buffer_load_dword v40, off, s[0:3], s32 ; 4-byte Folded Reload
; GCN-NEXT: s_mov_b64 exec, s[6:7]
; GCN-NEXT: s_waitcnt vmcnt(0)
; GCN-NEXT: s_setpc_b64 s[4:5]
%ret = call amdgpu_gfx i32 %fptr(i32 %i)
ret i32 %ret
}
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