1# RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs -run-pass greedy,amdgpu-nsa-reassign,virtregrewriter,si-shrink-instructions -o - %s | FileCheck -check-prefix=GCN %s 2 3--- | 4 define amdgpu_kernel void @nsa_reassign() #0 { ret void } 5 define amdgpu_kernel void @do_not_reassign_spill() #0 { ret void } 6 7 attributes #0 = { "amdgpu-num-vgpr"="8" } 8... 9 10# GCN-LABEL: name: nsa_reassign 11# GCN: IMAGE_SAMPLE_C_L_V1_V5_gfx10 12--- 13name: nsa_reassign 14tracksRegLiveness: true 15machineFunctionInfo: 16 stackPtrOffsetReg: $sgpr32 17stack: 18 - { id: 0, type: default, offset: 0, size: 4, alignment: 4 } 19registers: 20 - { id: 0, class: vgpr_32, preferred-register: '$vgpr0' } 21 - { id: 1, class: vgpr_32, preferred-register: '$vgpr1' } 22 - { id: 2, class: vgpr_32, preferred-register: '$vgpr2' } 23 - { id: 3, class: vgpr_32, preferred-register: '$vgpr3' } 24 - { id: 4, class: vgpr_32, preferred-register: '$vgpr4' } 25 - { id: 5, class: vgpr_32, preferred-register: '$vgpr5' } 26 - { id: 6, class: vgpr_32, preferred-register: '$vgpr6' } 27 - { id: 7, class: vgpr_32, preferred-register: '$vgpr7' } 28body: | 29 bb.0: 30 %0 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 31 %1 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 32 %2 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 33 %3 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 34 %4 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 35 %5 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 36 %6 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 37 %7:vgpr_32 = IMAGE_SAMPLE_C_L_V1_V5_nsa_gfx10 %0, %2, %4, %5, %6, undef $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, undef $sgpr8_sgpr9_sgpr10_sgpr11, 1, 2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "ImageResource") 38 S_ENDPGM 0, implicit %7 39... 40 41# GCN-LABEL: do_not_reassign_spill 42# GCN: IMAGE_SAMPLE_C_L_V1_V5_nsa_gfx10 43--- 44name: do_not_reassign_spill 45tracksRegLiveness: true 46machineFunctionInfo: 47 stackPtrOffsetReg: $sgpr32 48stack: 49 - { id: 0, type: default, offset: 0, size: 4, alignment: 4 } 50registers: 51 - { id: 0, class: vgpr_32, preferred-register: '$vgpr0' } 52 - { id: 1, class: vgpr_32, preferred-register: '$vgpr1' } 53 - { id: 2, class: vgpr_32, preferred-register: '$vgpr2' } 54 - { id: 3, class: vgpr_32, preferred-register: '$vgpr3' } 55 - { id: 4, class: vgpr_32, preferred-register: '$vgpr4' } 56 - { id: 5, class: vgpr_32, preferred-register: '$vgpr5' } 57 - { id: 6, class: vgpr_32, preferred-register: '$vgpr6' } 58 - { id: 7, class: vgpr_32, preferred-register: '$vgpr7' } 59body: | 60 bb.0: 61 %0 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 62 %1 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 63 %2 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 64 %3 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 65 %4 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 66 %5 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 67 %6 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) 68 S_NOP 0, implicit-def dead $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 69 S_NOP 0, implicit %0, implicit %1, implicit %2, implicit %3, implicit %4, implicit %5, implicit %6 70 %7:vgpr_32 = IMAGE_SAMPLE_C_L_V1_V5_nsa_gfx10 %0, %2, %4, %5, %6, undef $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, undef $sgpr8_sgpr9_sgpr10_sgpr11, 1, 2, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "ImageResource") 71 S_ENDPGM 0, implicit %7 72... 73