| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck -enable-var-scope -check-prefix=GCN %s |
| |
| ; Load argument depends on waitcnt which should be skipped. |
| define amdgpu_kernel void @call_memory_arg_load(i32 addrspace(3)* %ptr, i32) #0 { |
| ; GCN-LABEL: call_memory_arg_load: |
| ; GCN: ; %bb.0: |
| ; GCN-NEXT: s_load_dword s4, s[4:5], 0x0 |
| ; GCN-NEXT: s_mov_b32 s33, s9 |
| ; GCN-NEXT: s_add_u32 flat_scratch_lo, s6, s33 |
| ; GCN-NEXT: s_addc_u32 flat_scratch_hi, s7, 0 |
| ; GCN-NEXT: s_mov_b32 s32, s33 |
| ; GCN-NEXT: s_waitcnt lgkmcnt(0) |
| ; GCN-NEXT: v_mov_b32_e32 v0, s4 |
| ; GCN-NEXT: ds_read_b32 v0, v0 |
| ; GCN-NEXT: s_getpc_b64 s[4:5] |
| ; GCN-NEXT: s_add_u32 s4, s4, func@rel32@lo+4 |
| ; GCN-NEXT: s_addc_u32 s5, s5, func@rel32@hi+4 |
| ; GCN-NEXT: s_swappc_b64 s[30:31], s[4:5] |
| ; GCN-NEXT: s_endpgm |
| %vgpr = load volatile i32, i32 addrspace(3)* %ptr |
| call void @func(i32 %vgpr) |
| ret void |
| } |
| |
| ; Memory waitcnt with no register dependence on the call |
| define amdgpu_kernel void @call_memory_no_dep(i32 addrspace(1)* %ptr, i32) #0 { |
| ; GCN-LABEL: call_memory_no_dep: |
| ; GCN: ; %bb.0: |
| ; GCN-NEXT: s_load_dwordx2 s[4:5], s[4:5], 0x0 |
| ; GCN-NEXT: s_mov_b32 s33, s9 |
| ; GCN-NEXT: s_add_u32 flat_scratch_lo, s6, s33 |
| ; GCN-NEXT: v_mov_b32_e32 v2, 0 |
| ; GCN-NEXT: s_addc_u32 flat_scratch_hi, s7, 0 |
| ; GCN-NEXT: s_waitcnt lgkmcnt(0) |
| ; GCN-NEXT: v_mov_b32_e32 v0, s4 |
| ; GCN-NEXT: v_mov_b32_e32 v1, s5 |
| ; GCN-NEXT: global_store_dword v[0:1], v2, off |
| ; GCN-NEXT: v_mov_b32_e32 v0, 0 |
| ; GCN-NEXT: s_getpc_b64 s[6:7] |
| ; GCN-NEXT: s_add_u32 s6, s6, func@rel32@lo+4 |
| ; GCN-NEXT: s_addc_u32 s7, s7, func@rel32@hi+4 |
| ; GCN-NEXT: s_mov_b32 s32, s33 |
| ; GCN-NEXT: s_swappc_b64 s[30:31], s[6:7] |
| ; GCN-NEXT: s_endpgm |
| store i32 0, i32 addrspace(1)* %ptr |
| call void @func(i32 0) |
| ret void |
| } |
| |
| ; Should not wait after the call before memory |
| define amdgpu_kernel void @call_no_wait_after_call(i32 addrspace(1)* %ptr, i32) #0 { |
| ; GCN-LABEL: call_no_wait_after_call: |
| ; GCN: ; %bb.0: |
| ; GCN-NEXT: s_load_dwordx2 s[34:35], s[4:5], 0x0 |
| ; GCN-NEXT: s_mov_b32 s33, s9 |
| ; GCN-NEXT: s_add_u32 flat_scratch_lo, s6, s33 |
| ; GCN-NEXT: s_addc_u32 flat_scratch_hi, s7, 0 |
| ; GCN-NEXT: v_mov_b32_e32 v0, 0 |
| ; GCN-NEXT: s_getpc_b64 s[4:5] |
| ; GCN-NEXT: s_add_u32 s4, s4, func@rel32@lo+4 |
| ; GCN-NEXT: s_addc_u32 s5, s5, func@rel32@hi+4 |
| ; GCN-NEXT: s_mov_b32 s32, s33 |
| ; GCN-NEXT: v_mov_b32_e32 v32, 0 |
| ; GCN-NEXT: s_swappc_b64 s[30:31], s[4:5] |
| ; GCN-NEXT: v_mov_b32_e32 v0, s34 |
| ; GCN-NEXT: v_mov_b32_e32 v1, s35 |
| ; GCN-NEXT: global_store_dword v[0:1], v32, off |
| ; GCN-NEXT: s_endpgm |
| call void @func(i32 0) |
| store i32 0, i32 addrspace(1)* %ptr |
| ret void |
| } |
| |
| define amdgpu_kernel void @call_no_wait_after_call_return_val(i32 addrspace(1)* %ptr, i32) #0 { |
| ; GCN-LABEL: call_no_wait_after_call_return_val: |
| ; GCN: ; %bb.0: |
| ; GCN-NEXT: s_load_dwordx2 s[34:35], s[4:5], 0x0 |
| ; GCN-NEXT: s_mov_b32 s33, s9 |
| ; GCN-NEXT: s_add_u32 flat_scratch_lo, s6, s33 |
| ; GCN-NEXT: s_addc_u32 flat_scratch_hi, s7, 0 |
| ; GCN-NEXT: v_mov_b32_e32 v0, 0 |
| ; GCN-NEXT: s_getpc_b64 s[4:5] |
| ; GCN-NEXT: s_add_u32 s4, s4, func.return@rel32@lo+4 |
| ; GCN-NEXT: s_addc_u32 s5, s5, func.return@rel32@hi+4 |
| ; GCN-NEXT: s_mov_b32 s32, s33 |
| ; GCN-NEXT: s_swappc_b64 s[30:31], s[4:5] |
| ; GCN-NEXT: v_mov_b32_e32 v1, s34 |
| ; GCN-NEXT: v_mov_b32_e32 v2, s35 |
| ; GCN-NEXT: global_store_dword v[1:2], v0, off |
| ; GCN-NEXT: s_endpgm |
| %rv = call i32 @func.return(i32 0) |
| store i32 %rv, i32 addrspace(1)* %ptr |
| ret void |
| } |
| |
| ; Need to wait for the address dependency |
| define amdgpu_kernel void @call_got_load(i32 addrspace(1)* %ptr, i32) #0 { |
| ; GCN-LABEL: call_got_load: |
| ; GCN: ; %bb.0: |
| ; GCN-NEXT: s_mov_b32 s33, s9 |
| ; GCN-NEXT: s_add_u32 flat_scratch_lo, s6, s33 |
| ; GCN-NEXT: s_addc_u32 flat_scratch_hi, s7, 0 |
| ; GCN-NEXT: s_getpc_b64 s[4:5] |
| ; GCN-NEXT: s_add_u32 s4, s4, got.func@gotpcrel32@lo+4 |
| ; GCN-NEXT: s_addc_u32 s5, s5, got.func@gotpcrel32@hi+4 |
| ; GCN-NEXT: s_load_dwordx2 s[4:5], s[4:5], 0x0 |
| ; GCN-NEXT: v_mov_b32_e32 v0, 0 |
| ; GCN-NEXT: s_mov_b32 s32, s33 |
| ; GCN-NEXT: s_waitcnt lgkmcnt(0) |
| ; GCN-NEXT: s_swappc_b64 s[30:31], s[4:5] |
| ; GCN-NEXT: s_endpgm |
| call void @got.func(i32 0) |
| ret void |
| } |
| |
| ; Need to wait for the address dependency |
| define void @tailcall_got_load(i32 addrspace(1)* %ptr, i32) #0 { |
| ; GCN-LABEL: tailcall_got_load: |
| ; GCN: ; %bb.0: |
| ; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0) |
| ; GCN-NEXT: s_getpc_b64 s[4:5] |
| ; GCN-NEXT: s_add_u32 s4, s4, got.func@gotpcrel32@lo+4 |
| ; GCN-NEXT: s_addc_u32 s5, s5, got.func@gotpcrel32@hi+4 |
| ; GCN-NEXT: s_load_dwordx2 s[4:5], s[4:5], 0x0 |
| ; GCN-NEXT: v_mov_b32_e32 v0, 0 |
| ; GCN-NEXT: s_waitcnt lgkmcnt(0) |
| ; GCN-NEXT: s_setpc_b64 s[4:5] |
| tail call void @got.func(i32 0) |
| ret void |
| } |
| |
| ; No need to wait for the load. |
| define void @tail_call_memory_arg_load(i32 addrspace(3)* %ptr, i32) #0 { |
| ; GCN-LABEL: tail_call_memory_arg_load: |
| ; GCN: ; %bb.0: |
| ; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0) |
| ; GCN-NEXT: ds_read_b32 v0, v0 |
| ; GCN-NEXT: s_getpc_b64 s[4:5] |
| ; GCN-NEXT: s_add_u32 s4, s4, func@rel32@lo+4 |
| ; GCN-NEXT: s_addc_u32 s5, s5, func@rel32@hi+4 |
| ; GCN-NEXT: s_setpc_b64 s[4:5] |
| %vgpr = load volatile i32, i32 addrspace(3)* %ptr |
| tail call void @func(i32 %vgpr) |
| ret void |
| } |
| |
| declare hidden void @func(i32) #0 |
| declare hidden i32 @func.return(i32) #0 |
| declare void @got.func(i32) #0 |
| |
| attributes #0 = { nounwind } |