# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 2 # RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -verify-machineinstrs -run-pass=prologepilog -o - %s | FileCheck -check-prefix=GCN %s --- | declare amdgpu_cs_chain void @callee() declare amdgpu_gfx void @gfx_callee() define amdgpu_cs_chain_preserve void @preserve_active_lanes_above_args() {ret void} define amdgpu_cs_chain_preserve void @preserve_all_lanes_wwm_above_args() {ret void} define amdgpu_cs_chain_preserve void @dont_preserve_args() {ret void} define amdgpu_cs_chain_preserve void @preserve_inactive_lanes_wwm_args() {ret void} define amdgpu_cs_chain_preserve void @dont_preserve_if_no_chain_calls() {ret void} define amdgpu_cs_chain_preserve void @dont_preserve_v0_v7() {ret void} define amdgpu_cs_chain_preserve void @dont_preserve_sgpr() {ret void} ... --- # NOTE: Since we don't know what the args are, we rely on the fact that we can't # call llvm.amdgcn.cs.chain with more parameters than we received - so anything # that is used by the SI_CS_CHAIN_TC_W32 is assumed to have been an arg and therefore # not preserved. --- name: preserve_active_lanes_above_args tracksRegLiveness: true frameInfo: hasTailCall: true machineFunctionInfo: stackPtrOffsetReg: '$sgpr32' isChainFunction: true returnsVoid: true body: | bb.0: liveins: $sgpr0, $vgpr8, $vgpr9 ; GCN-LABEL: name: preserve_active_lanes_above_args ; GCN: liveins: $sgpr0, $vgpr8, $vgpr9, $vgpr10 ; GCN-NEXT: {{ $}} ; GCN-NEXT: SCRATCH_STORE_DWORD_ST killed $vgpr10, 4, 0, implicit $exec, implicit $flat_scr :: (store (s32) into %stack.0, addrspace 5) ; GCN-NEXT: renamable $vgpr10 = V_MOV_B32_e32 10, implicit $exec ; GCN-NEXT: $vgpr8 = COPY killed renamable $vgpr10 ; GCN-NEXT: renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc ; GCN-NEXT: renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) ; GCN-NEXT: $vgpr10 = SCRATCH_LOAD_DWORD_ST 4, 0, implicit $exec, implicit $flat_scr :: (load (s32) from %stack.0, addrspace 5) ; GCN-NEXT: SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0, implicit $vgpr8, implicit $vgpr9 renamable $vgpr10 = V_MOV_B32_e32 10, implicit $exec $vgpr8 = COPY renamable killed $vgpr10 renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0, implicit $vgpr8, implicit $vgpr9 ... --- name: preserve_all_lanes_wwm_above_args tracksRegLiveness: true frameInfo: hasTailCall: true machineFunctionInfo: stackPtrOffsetReg: '$sgpr32' isChainFunction: true returnsVoid: true wwmReservedRegs: - '$vgpr11' body: | bb.0: liveins: $sgpr0, $sgpr35, $vgpr8, $vgpr9, $vgpr10 ; GCN-LABEL: name: preserve_all_lanes_wwm_above_args ; GCN: liveins: $sgpr0, $sgpr35, $vgpr8, $vgpr9, $vgpr10 ; GCN-NEXT: {{ $}} ; GCN-NEXT: $sgpr1 = S_OR_SAVEEXEC_B32 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec ; GCN-NEXT: SCRATCH_STORE_DWORD_ST $vgpr10, 4, 0, implicit $exec, implicit $flat_scr :: (store (s32) into %stack.0, addrspace 5) ; GCN-NEXT: SCRATCH_STORE_DWORD_ST killed $vgpr11, 8, 0, implicit $exec, implicit $flat_scr :: (store (s32) into %stack.1, addrspace 5) ; GCN-NEXT: $exec_lo = S_MOV_B32 killed $sgpr1 ; GCN-NEXT: renamable $vgpr10 = SI_SPILL_S32_TO_VGPR $sgpr35, 0, killed $vgpr10 ; GCN-NEXT: $sgpr35 = S_MOV_B32 5 ; GCN-NEXT: $sgpr35 = SI_RESTORE_S32_FROM_VGPR $vgpr10, 0 ; GCN-NEXT: renamable $vgpr10 = V_MOV_B32_e32 10, implicit $exec ; GCN-NEXT: $vgpr8 = COPY killed renamable $vgpr10 ; GCN-NEXT: renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc ; GCN-NEXT: renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) ; GCN-NEXT: $sgpr1 = S_OR_SAVEEXEC_B32 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec ; GCN-NEXT: $vgpr10 = SCRATCH_LOAD_DWORD_SADDR $sgpr32, 4, 0, implicit $exec, implicit $flat_scr :: (load (s32) from %stack.0, addrspace 5) ; GCN-NEXT: $vgpr11 = SCRATCH_LOAD_DWORD_SADDR $sgpr32, 8, 0, implicit $exec, implicit $flat_scr :: (load (s32) from %stack.1, addrspace 5) ; GCN-NEXT: $exec_lo = S_MOV_B32 killed $sgpr1 ; GCN-NEXT: SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0, implicit $vgpr8, implicit $vgpr9 renamable $vgpr10 = SI_SPILL_S32_TO_VGPR $sgpr35, 0, killed $vgpr10 $sgpr35 = S_MOV_B32 5 $sgpr35 = SI_RESTORE_S32_FROM_VGPR $vgpr10, 0 renamable $vgpr10 = V_MOV_B32_e32 10, implicit $exec $vgpr8 = COPY renamable killed $vgpr10 renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0, implicit $vgpr8, implicit $vgpr9 ... --- name: dont_preserve_args tracksRegLiveness: true frameInfo: hasTailCall: true machineFunctionInfo: stackPtrOffsetReg: '$sgpr32' isChainFunction: true returnsVoid: true body: | bb.0: liveins: $sgpr0, $vgpr8, $vgpr9 ; GCN-LABEL: name: dont_preserve_args ; GCN: liveins: $sgpr0, $vgpr8, $vgpr9 ; GCN-NEXT: {{ $}} ; GCN-NEXT: renamable $vgpr8 = V_MOV_B32_e32 10, implicit $exec ; GCN-NEXT: renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc ; GCN-NEXT: renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) ; GCN-NEXT: SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0, implicit $vgpr8, implicit $vgpr9 renamable $vgpr8 = V_MOV_B32_e32 10, implicit $exec renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0, implicit $vgpr8, implicit $vgpr9 ... --- name: preserve_inactive_lanes_wwm_args tracksRegLiveness: true frameInfo: hasTailCall: true machineFunctionInfo: stackPtrOffsetReg: '$sgpr32' isChainFunction: true returnsVoid: true wwmReservedRegs: - '$vgpr9' body: | bb.0: liveins: $sgpr0, $sgpr35, $vgpr8, $vgpr9, $vgpr10 ; GCN-LABEL: name: preserve_inactive_lanes_wwm_args ; GCN: liveins: $sgpr0, $sgpr35, $vgpr8, $vgpr9, $vgpr10 ; GCN-NEXT: {{ $}} ; GCN-NEXT: $sgpr1 = S_OR_SAVEEXEC_B32 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec ; GCN-NEXT: SCRATCH_STORE_DWORD_ST $vgpr8, 4, 0, implicit $exec, implicit $flat_scr :: (store (s32) into %stack.0, addrspace 5) ; GCN-NEXT: SCRATCH_STORE_DWORD_ST $vgpr9, 8, 0, implicit $exec, implicit $flat_scr :: (store (s32) into %stack.1, addrspace 5) ; GCN-NEXT: $exec_lo = S_MOV_B32 killed $sgpr1 ; GCN-NEXT: renamable $vgpr8 = SI_SPILL_S32_TO_VGPR $sgpr35, 0, killed $vgpr8 ; GCN-NEXT: $sgpr35 = S_MOV_B32 5 ; GCN-NEXT: $sgpr35 = SI_RESTORE_S32_FROM_VGPR $vgpr8, 0 ; GCN-NEXT: renamable $vgpr8 = V_MOV_B32_e32 10, implicit $exec ; GCN-NEXT: renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc ; GCN-NEXT: renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) ; GCN-NEXT: $sgpr1 = S_OR_SAVEEXEC_B32 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec ; GCN-NEXT: $vgpr8 = SCRATCH_LOAD_DWORD_SADDR $sgpr32, 4, 0, implicit $exec, implicit $flat_scr, implicit $vgpr8(tied-def 0) :: (load (s32) from %stack.0, addrspace 5) ; GCN-NEXT: $vgpr9 = SCRATCH_LOAD_DWORD_SADDR $sgpr32, 8, 0, implicit $exec, implicit $flat_scr, implicit $vgpr9(tied-def 0) :: (load (s32) from %stack.1, addrspace 5) ; GCN-NEXT: $exec_lo = S_MOV_B32 killed $sgpr1 ; GCN-NEXT: SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0, implicit $vgpr8, implicit $vgpr9 renamable $vgpr8 = SI_SPILL_S32_TO_VGPR $sgpr35, 0, killed $vgpr8 $sgpr35 = S_MOV_B32 5 $sgpr35 = SI_RESTORE_S32_FROM_VGPR $vgpr8, 0 renamable $vgpr8 = V_MOV_B32_e32 10, implicit $exec renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0, implicit $vgpr8, implicit $vgpr9 ... --- name: dont_preserve_if_no_chain_calls tracksRegLiveness: true frameInfo: hasTailCall: false machineFunctionInfo: stackPtrOffsetReg: '$sgpr32' isChainFunction: true returnsVoid: true wwmReservedRegs: - '$vgpr9' body: | bb.0: liveins: $sgpr0, $sgpr35, $vgpr0, $vgpr8, $vgpr9 ; GCN-LABEL: name: dont_preserve_if_no_chain_calls ; GCN: liveins: $sgpr0, $sgpr35, $vgpr0, $vgpr8, $vgpr9 ; GCN-NEXT: {{ $}} ; GCN-NEXT: renamable $vgpr8 = SI_SPILL_S32_TO_VGPR $sgpr35, 0, killed $vgpr8 ; GCN-NEXT: $sgpr35 = S_MOV_B32 5 ; GCN-NEXT: $sgpr35 = SI_RESTORE_S32_FROM_VGPR $vgpr8, 0 ; GCN-NEXT: renamable $vgpr8 = V_MOV_B32_e32 10, implicit $exec ; GCN-NEXT: $vgpr9 = V_MOV_B32_e32 20, implicit $exec ; GCN-NEXT: $vgpr10 = V_MOV_B32_e32 30, implicit $exec ; GCN-NEXT: S_ENDPGM 0 renamable $vgpr8 = SI_SPILL_S32_TO_VGPR $sgpr35, 0, killed $vgpr8 $sgpr35 = S_MOV_B32 5 $sgpr35 = SI_RESTORE_S32_FROM_VGPR $vgpr8, 0 renamable $vgpr8 = V_MOV_B32_e32 10, implicit $exec $vgpr9 = V_MOV_B32_e32 20, implicit $exec $vgpr10 = V_MOV_B32_e32 30, implicit $exec S_ENDPGM 0 ... --- name: dont_preserve_v0_v7 tracksRegLiveness: true frameInfo: hasTailCall: true machineFunctionInfo: stackPtrOffsetReg: '$sgpr32' isChainFunction: true returnsVoid: true wwmReservedRegs: - '$vgpr1' body: | bb.0: liveins: $sgpr0, $sgpr35, $vgpr0, $vgpr8 ; GCN-LABEL: name: dont_preserve_v0_v7 ; GCN: liveins: $sgpr0, $sgpr35, $vgpr0, $vgpr8 ; GCN-NEXT: {{ $}} ; GCN-NEXT: renamable $vgpr0 = SI_SPILL_S32_TO_VGPR $sgpr35, 0, killed $vgpr0 ; GCN-NEXT: $sgpr35 = S_MOV_B32 5 ; GCN-NEXT: $sgpr35 = SI_RESTORE_S32_FROM_VGPR $vgpr0, 0 ; GCN-NEXT: renamable $vgpr0 = V_MOV_B32_e32 10, implicit $exec ; GCN-NEXT: renamable $vgpr7 = V_MOV_B32_e32 16, implicit $exec ; GCN-NEXT: renamable $vgpr8 = COPY killed renamable $vgpr0 ; GCN-NEXT: renamable $vgpr9 = COPY killed renamable $vgpr7 ; GCN-NEXT: renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc ; GCN-NEXT: renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) ; GCN-NEXT: SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0, implicit $vgpr8, implicit $vgpr9 renamable $vgpr0 = SI_SPILL_S32_TO_VGPR $sgpr35, 0, killed $vgpr0 $sgpr35 = S_MOV_B32 5 $sgpr35 = SI_RESTORE_S32_FROM_VGPR $vgpr0, 0 renamable $vgpr0 = V_MOV_B32_e32 10, implicit $exec renamable $vgpr7 = V_MOV_B32_e32 16, implicit $exec renamable $vgpr8 = COPY killed renamable $vgpr0 renamable $vgpr9 = COPY killed renamable $vgpr7 renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0, implicit $vgpr8, implicit $vgpr9 ... --- name: dont_preserve_sgpr tracksRegLiveness: true frameInfo: hasTailCall: true machineFunctionInfo: stackPtrOffsetReg: '$sgpr32' isChainFunction: true returnsVoid: true body: | bb.0: liveins: $sgpr0 ; GCN-LABEL: name: dont_preserve_sgpr ; GCN: liveins: $sgpr0 ; GCN-NEXT: {{ $}} ; GCN-NEXT: renamable $sgpr1 = S_ADD_I32 killed renamable $sgpr0, renamable $sgpr0, implicit-def dead $scc ; GCN-NEXT: $sgpr0 = COPY killed renamable $sgpr1 ; GCN-NEXT: renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc ; GCN-NEXT: renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) ; GCN-NEXT: SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0 renamable $sgpr1 = S_ADD_I32 killed renamable $sgpr0, renamable $sgpr0, implicit-def dead $scc $sgpr0 = COPY killed renamable $sgpr1 renamable $sgpr4_sgpr5 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-gotprel32-lo) @callee + 4, target-flags(amdgpu-gotprel32-hi) @callee + 12, implicit-def dead $scc renamable $sgpr4_sgpr5 = S_LOAD_DWORDX2_IMM killed renamable $sgpr4_sgpr5, 0, 0 :: (dereferenceable invariant load (p0) from got, addrspace 4) SI_CS_CHAIN_TC_W32 killed renamable $sgpr4_sgpr5, @callee, 0, -1, amdgpu_allvgprs, implicit $sgpr0 ...