1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py 2# RUN: llc -mtriple=amdgcn-amd-amdhsa -start-before=greedy -stop-after=virtregrewriter -verify-machineinstrs -o - %s | FileCheck %s 3 4# The undef copy of %4 is allocated to $vgpr3, and the identity copy 5# was deleted, and $vgpr3 was considered undef. The code to replace 6# the undef copy with a kill was incorrectly checking the dest 7# operand, rather than the source. 8 9--- | 10 define amdgpu_kernel void @undef_identity_copy() { 11 ret void 12 } 13 14 declare hidden float @bar(<4 x float>) 15 declare hidden void @foo() 16 17... 18--- 19name: undef_identity_copy 20tracksRegLiveness: true 21frameInfo: 22 maxAlignment: 4 23 hasCalls: true 24machineFunctionInfo: 25 isEntryFunction: true 26 scratchRSrcReg: '$sgpr0_sgpr1_sgpr2_sgpr3' 27 frameOffsetReg: '$sgpr95' 28 stackPtrOffsetReg: '$sgpr32' 29body: | 30 bb.0: 31 ; CHECK-LABEL: name: undef_identity_copy 32 ; CHECK: renamable $vgpr40_vgpr41_vgpr42_vgpr43 = FLAT_LOAD_DWORDX4 undef renamable $vgpr0_vgpr1, 0, 0, 0, 0, implicit $exec, implicit $flat_scr :: (load 16, addrspace 1) 33 ; CHECK: renamable $sgpr6_sgpr7 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-rel32-lo) @foo + 4, target-flags(amdgpu-rel32-hi) @foo + 4, implicit-def dead $scc 34 ; CHECK: ADJCALLSTACKUP 0, 0, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr95 35 ; CHECK: $sgpr4 = COPY $sgpr95 36 ; CHECK: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr6_sgpr7, @foo, csr_amdgpu_highregs, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4 37 ; CHECK: ADJCALLSTACKDOWN 0, 4, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr95 38 ; CHECK: renamable $sgpr6_sgpr7 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-rel32-lo) @bar + 4, target-flags(amdgpu-rel32-hi) @bar + 4, implicit-def dead $scc 39 ; CHECK: ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr95 40 ; CHECK: $sgpr4 = COPY $sgpr95 41 ; CHECK: $vgpr0 = COPY renamable $vgpr40 42 ; CHECK: $vgpr1 = COPY renamable $vgpr41 43 ; CHECK: $vgpr2 = COPY renamable $vgpr42 44 ; CHECK: $vgpr3 = KILL undef renamable $vgpr3 45 ; CHECK: dead $sgpr30_sgpr31 = SI_CALL killed renamable $sgpr6_sgpr7, @bar, csr_amdgpu_highregs, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4, implicit $vgpr0, implicit killed $vgpr1, implicit killed $vgpr2, implicit killed $vgpr3, implicit-def $vgpr0 46 ; CHECK: ADJCALLSTACKDOWN 0, 4, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr95 47 ; CHECK: FLAT_STORE_DWORD undef renamable $vgpr0_vgpr1, killed renamable $vgpr0, 0, 0, 0, 0, implicit $exec, implicit $flat_scr :: (store 4, addrspace 1) 48 ; CHECK: S_ENDPGM 0 49 %0:vreg_128 = FLAT_LOAD_DWORDX4 undef %1:vreg_64, 0, 0, 0, 0, implicit $exec, implicit $flat_scr :: (load 16, addrspace 1) 50 %2:sreg_64 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-rel32-lo) @foo + 4, target-flags(amdgpu-rel32-hi) @foo + 4, implicit-def dead $scc 51 ADJCALLSTACKUP 0, 0, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr95, implicit-def $scc 52 $sgpr4 = COPY $sgpr95 53 dead $sgpr30_sgpr31 = SI_CALL %2, @foo, csr_amdgpu_highregs, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4 54 ADJCALLSTACKDOWN 0, 4, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr95 55 %3:sreg_64 = SI_PC_ADD_REL_OFFSET target-flags(amdgpu-rel32-lo) @bar + 4, target-flags(amdgpu-rel32-hi) @bar + 4, implicit-def dead $scc 56 ADJCALLSTACKUP 0, 0, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr95 57 $sgpr4 = COPY $sgpr95 58 $vgpr0 = COPY %0.sub0 59 $vgpr1 = COPY %0.sub1 60 $vgpr2 = COPY %0.sub2 61 $vgpr3 = COPY undef %4:vgpr_32 62 dead $sgpr30_sgpr31 = SI_CALL %3, @bar, csr_amdgpu_highregs, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4, implicit $vgpr0, implicit killed $vgpr1, implicit killed $vgpr2, implicit killed $vgpr3, implicit-def $vgpr0 63 %5:vgpr_32 = COPY $vgpr0 64 ADJCALLSTACKDOWN 0, 4, implicit-def $scc, implicit-def $sgpr32, implicit $sgpr32, implicit $sgpr95 65 FLAT_STORE_DWORD undef %6:vreg_64, %5, 0, 0, 0, 0, implicit $exec, implicit $flat_scr :: (store 4, addrspace 1) 66 S_ENDPGM 0 67 68... 69