| # RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -amdgpu-spill-vgpr-to-agpr=true -verify-machineinstrs -run-pass=si-lower-sgpr-spills,prologepilog -o - %s | FileCheck %s |
| |
| # After handling the VGPR spill to AGPR copy in SILowerSGPRSpills pass, replace the dead frame index in the DBG_VALUE instruction with reg 0. |
| # Otherwise, the test would crash during PEI while trying to replace the dead frame index. |
| --- | |
| define amdgpu_kernel void @test() { ret void } |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !4, producer: "llvm", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !4) |
| !1 = !DILocalVariable(name: "a", scope: !2, file: !4, line: 126, type: !6) |
| !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) |
| !3 = !DISubroutineType(types: !4) |
| !4 = !{null} |
| !5 = !{!1} |
| !6 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64, align: 32) |
| !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !8 = !DIExpression() |
| !9 = !DILocation(line: 10, column: 9, scope: !2) |
| |
| ... |
| --- |
| name: test |
| tracksRegLiveness: true |
| frameInfo: |
| maxAlignment: 4 |
| stack: |
| - { id: 0, type: spill-slot, size: 4, alignment: 4 } |
| machineFunctionInfo: |
| maxKernArgAlign: 4 |
| isEntryFunction: true |
| waveLimiter: true |
| scratchRSrcReg: '$sgpr96_sgpr97_sgpr98_sgpr99' |
| stackPtrOffsetReg: '$sgpr32' |
| frameOffsetReg: '$sgpr33' |
| hasSpilledVGPRs: true |
| argumentInfo: |
| privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' } |
| dispatchPtr: { reg: '$sgpr4_sgpr5' } |
| kernargSegmentPtr: { reg: '$sgpr6_sgpr7' } |
| workGroupIDX: { reg: '$sgpr8' } |
| privateSegmentWaveByteOffset: { reg: '$sgpr9' } |
| body: | |
| ; CHECK-LABEL: name: test |
| ; CHECK: bb.0: |
| ; CHECK: $agpr0 = V_ACCVGPR_WRITE_B32_e64 $vgpr2, implicit $exec |
| ; CHECK: DBG_VALUE $noreg, 0 |
| ; CHECK: bb.1: |
| ; CHECK: $vgpr2 = V_ACCVGPR_READ_B32_e64 $agpr0, implicit $exec |
| ; CHECK: S_ENDPGM 0 |
| bb.0: |
| $vgpr2 = IMPLICIT_DEF |
| SI_SPILL_V32_SAVE $vgpr2, %stack.0, $sgpr32, 0, implicit $exec :: (store (s32) into %stack.0, align 4, addrspace 5) |
| DBG_VALUE %stack.0, 0, !1, !8, debug-location !9 |
| |
| bb.1: |
| renamable $vgpr2 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, align 4, addrspace 5) |
| S_ENDPGM 0 |