1 # RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -amdgpu-spill-sgpr-to-vgpr=true -verify-machineinstrs -run-pass=si-lower-sgpr-spills -o - %s | FileCheck -check-prefix=SGPR_SPILL %s
2 # RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -amdgpu-spill-sgpr-to-vgpr=true -verify-machineinstrs --start-before=si-lower-sgpr-spills --stop-after=prologepilog -o - %s | FileCheck -check-prefix=PEI %s
4 # After handling the SGPR spill to VGPR in SILowerSGPRSpills pass, replace the dead frame index in the DBG_VALUE instruction with reg 0.
5 # Otherwise, the test would crash during PEI while trying to replace the dead frame index.
7 define amdgpu_kernel void @test() { ret void }
9 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !4, producer: "llvm", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !4)
10 !1 = !DILocalVariable(name: "a", scope: !2, file: !4, line: 126, type: !6)
11 !2 = distinct !DISubprogram(name: "test", scope: !4, file: !4, line: 1, type: !3, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !5)
12 !3 = !DISubroutineType(types: !4)
15 !6 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64, align: 32)
16 !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
18 !9 = !DILocation(line: 10, column: 9, scope: !2)
23 tracksRegLiveness: true
27 - { id: 0, type: spill-slot, size: 4, alignment: 4, stack-id: sgpr-spill }
32 scratchRSrcReg: '$sgpr96_sgpr97_sgpr98_sgpr99'
33 stackPtrOffsetReg: '$sgpr32'
34 frameOffsetReg: '$sgpr33'
37 privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
38 dispatchPtr: { reg: '$sgpr4_sgpr5' }
39 kernargSegmentPtr: { reg: '$sgpr6_sgpr7' }
40 workGroupIDX: { reg: '$sgpr8' }
41 privateSegmentWaveByteOffset: { reg: '$sgpr9' }
43 ; SGPR_SPILL-LABEL: name: test
45 ; SGPR_SPILL-NEXT: successors: %bb.1(0x80000000)
46 ; SGPR_SPILL-NEXT: {{ $}}
47 ; SGPR_SPILL-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
48 ; SGPR_SPILL-NEXT: renamable $sgpr10 = IMPLICIT_DEF
49 ; SGPR_SPILL-NEXT: [[V_WRITELANE_B32_:%[0-9]+]]:vgpr_32 = SI_SPILL_S32_TO_VGPR killed $sgpr10, 0, [[V_WRITELANE_B32_]]
50 ; SGPR_SPILL-NEXT: DBG_VALUE $noreg, 0
51 ; SGPR_SPILL-NEXT: {{ $}}
52 ; SGPR_SPILL-NEXT: bb.1:
53 ; SGPR_SPILL-NEXT: $sgpr10 = SI_RESTORE_S32_FROM_VGPR [[V_WRITELANE_B32_]], 0
54 ; SGPR_SPILL-NEXT: KILL [[V_WRITELANE_B32_]]
55 ; SGPR_SPILL-NEXT: S_ENDPGM 0
56 ; PEI-LABEL: name: test
58 ; PEI-NEXT: successors: %bb.1(0x80000000)
60 ; PEI-NEXT: renamable $vgpr0 = IMPLICIT_DEF
61 ; PEI-NEXT: renamable $sgpr10 = IMPLICIT_DEF
62 ; PEI-NEXT: renamable $vgpr0 = SI_SPILL_S32_TO_VGPR killed $sgpr10, 0, killed $vgpr0
65 ; PEI-NEXT: liveins: $vgpr0
67 ; PEI-NEXT: $sgpr10 = SI_RESTORE_S32_FROM_VGPR $vgpr0, 0
68 ; PEI-NEXT: KILL killed renamable $vgpr0
69 ; PEI-NEXT: S_ENDPGM 0
71 renamable $sgpr10 = IMPLICIT_DEF
72 SI_SPILL_S32_SAVE killed $sgpr10, %stack.0, implicit $exec, implicit $sgpr96_sgpr97_sgpr98_sgpr99, implicit $sgpr32
73 DBG_VALUE %stack.0, 0, !1, !8, debug-location !9
76 renamable $sgpr10 = SI_SPILL_S32_RESTORE %stack.0, implicit $exec, implicit $sgpr96_sgpr97_sgpr98_sgpr99, implicit $sgpr32