Mercurial > hg > CbC > CbC_llvm
diff llvm/test/CodeGen/AMDGPU/vgpr-spill-fi-skip-processing-stack-arg-dbg-value.mir @ 252:1f2b6ac9f198 llvm-original
LLVM16-1
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Fri, 18 Aug 2023 09:04:13 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/llvm/test/CodeGen/AMDGPU/vgpr-spill-fi-skip-processing-stack-arg-dbg-value.mir Fri Aug 18 09:04:13 2023 +0900 @@ -0,0 +1,56 @@ +# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -amdgpu-spill-vgpr-to-agpr=true -verify-machineinstrs -run-pass=prologepilog -o - %s | FileCheck %s + +# After handling the VGPR spill to AGPR copy, we replace the dead frame index in the DBG_VALUE instruction with reg 0. +# Skip looking for frame indices in the debug value instruction for incoming arguments passed via stack. The test would crash otherwise. +# It is safe to skip the fixed stack objects as they will never become the spill objects. + +--- | + 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 +fixedStack: + - { id: 0, type: default, offset: 4, size: 4, alignment: 4, stack-id: default } +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: DBG_VALUE $noreg, 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 %fixed-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