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clang-p2996/llvm/test/CodeGen/MIR/AMDGPU/machine-function-info-no-ir.mir
Lucas Ramirez 6206f5444f [AMDGPU] Occupancy w.r.t. workgroup size range is also a range (#123748) 
Occupancy (i.e., the number of waves per EU) depends, in addition to
register usage, on per-workgroup LDS usage as well as on the range of
possible workgroup sizes. Mirroring the latter, occupancy should
therefore be expressed as a range since different group sizes generally
yield different achievable occupancies.

`getOccupancyWithLocalMemSize` currently returns a scalar occupancy
based on the maximum workgroup size and LDS usage. With respect to the
workgroup size range, this scalar can be the minimum, the maximum, or
neither of the two of the range of achievable occupancies. This commit
fixes the function by making it compute and return the range of
achievable occupancies w.r.t. workgroup size and LDS usage; it also
renames it to `getOccupancyWithWorkGroupSizes` since it is the range of
workgroup sizes that produces the range of achievable occupancies.

Computing the achievable occupancy range is surprisingly involved.
Minimum/maximum workgroup sizes do not necessarily yield maximum/minimum
occupancies i.e., sometimes workgroup sizes inside the range yield the
occupancy bounds. The implementation finds these sizes in constant time;
heavy documentation explains the rationale behind the sometimes
relatively obscure calculations.

As a justifying example, consider a target with 10 waves / EU, 4 EUs/CU,
64-wide waves. Also consider a function with no LDS usage and a flat
workgroup size range of [513,1024].

- A group of 513 items requires 9 waves per group. Only 4 groups made up
of 9 waves each can fit fully on a CU at any given time, for a total of
36 waves on the CU, or 9 per EU. However, filling as much as possible
the remaining 40-36=4 wave slots without decreasing the number of groups
reveals that a larger group of 640 items yields 40 waves on the CU, or
10 per EU.
- Similarly, a group of 1024 items requires 16 waves per group. Only 2
groups made up of 16 waves each can fit fully on a CU ay any given time,
for a total of 32 waves on the CU, or 8 per EU. However, removing as
many waves as possible from the groups without being able to fit another
equal-sized group on the CU reveals that a smaller group of 896 items
yields 28 waves on the CU, or 7 per EU.

Therefore the achievable occupancy range for this function is not [8,9]
as the group size bounds directly yield, but [7,10].

Naturally this change causes a lot of test churn as instruction
scheduling is driven by achievable occupancy estimates. In most unit
tests the flat workgroup size range is the default [1,1024] which,
ignoring potential LDS limitations, would previously produce a scalar
occupancy of 8 (derived from 1024) on a lot of targets, whereas we now
consider the maximum occupancy to be 10 in such cases. Most tests are
updated automatically and checked manually for sanity. I also manually
changed some non-automatically generated assertions when necessary.

Fixes #118220.
2025-01-23 16:07:57 +01:00

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# RUN: llc -mtriple=amdgcn-amd-amdhsa -run-pass=none -verify-machineinstrs %s -o - | FileCheck -check-prefixes=FULL,ALL %s
# RUN: llc -mtriple=amdgcn-amd-amdhsa -run-pass=none -simplify-mir -verify-machineinstrs %s -o - | FileCheck -check-prefixes=SIMPLE,ALL %s
---
# ALL-LABEL: name: kernel0
# FULL: machineFunctionInfo:
# FULL-NEXT: explicitKernArgSize: 128
# FULL-NEXT: maxKernArgAlign: 64
# FULL-NEXT: ldsSize: 2048
# FULL-NEXT: gdsSize: 256
# FULL-NEXT: dynLDSAlign: 1
# FULL-NEXT: isEntryFunction: true
# FULL-NEXT: isChainFunction: false
# FULL-NEXT: noSignedZerosFPMath: false
# FULL-NEXT: memoryBound: true
# FULL-NEXT: waveLimiter: true
# FULL-NEXT: hasSpilledSGPRs: false
# FULL-NEXT: hasSpilledVGPRs: false
# FULL-NEXT: scratchRSrcReg: '$sgpr8_sgpr9_sgpr10_sgpr11'
# FULL-NEXT: frameOffsetReg: '$sgpr12'
# FULL-NEXT: stackPtrOffsetReg: '$sgpr13'
# FULL-NEXT: bytesInStackArgArea: 0
# FULL-NEXT: returnsVoid: true
# FULL-NEXT: argumentInfo:
# FULL-NEXT: privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
# FULL-NEXT: dispatchPtr: { reg: '$sgpr4_sgpr5' }
# FULL-NEXT: queuePtr: { reg: '$sgpr6_sgpr7' }
# FULL-NEXT: kernargSegmentPtr: { reg: '$sgpr4_sgpr5' }
# FULL-NEXT: dispatchID: { reg: '$sgpr10_sgpr11' }
# FULL-NEXT: workGroupIDX: { reg: '$sgpr6' }
# FULL-NEXT: workGroupIDY: { reg: '$sgpr13' }
# FULL-NEXT: workGroupIDZ: { reg: '$sgpr14' }
# FULL-NEXT: LDSKernelId: { reg: '$sgpr15' }
# FULL-NEXT: privateSegmentWaveByteOffset: { reg: '$sgpr7' }
# FULL-NEXT: implicitArgPtr: { reg: '$sgpr8_sgpr9' }
# FULL-NEXT: workItemIDX: { reg: '$vgpr0' }
# FULL-NEXT: workItemIDY: { reg: '$vgpr31', mask: 1047552 }
# FULL-NEXT: workItemIDZ: { reg: '$vgpr31', mask: 1072693248 }
# FULL-NEXT: psInputAddr: 0
# FULL-NEXT: psInputEnable: 0
# FULL-NEXT: maxMemoryClusterDWords: 8
# FULL-NEXT: mode:
# FULL-NEXT: ieee: true
# FULL-NEXT: dx10-clamp: true
# FULL-NEXT: fp32-input-denormals: true
# FULL-NEXT: fp32-output-denormals: true
# FULL-NEXT: fp64-fp16-input-denormals: true
# FULL-NEXT: fp64-fp16-output-denormals: true
# FULL-NEXT: highBitsOf32BitAddress: 0
# FULL-NEXT: occupancy: 8
# FULL-NEXT: vgprForAGPRCopy: ''
# FULL-NEXT: sgprForEXECCopy: ''
# FULL-NEXT: longBranchReservedReg: ''
# FULL-NEXT: hasInitWholeWave: false
# FULL-NEXT: body:
# SIMPLE: machineFunctionInfo:
# SIMPLE-NEXT: explicitKernArgSize: 128
# SIMPLE-NEXT: maxKernArgAlign: 64
# SIMPLE-NEXT: ldsSize: 2048
# SIMPLE-NEXT: gdsSize: 256
# SIMPLE-NEXT: isEntryFunction: true
# SIMPLE-NEXT: memoryBound: true
# SIMPLE-NEXT: waveLimiter: true
# SIMPLE-NEXT: scratchRSrcReg: '$sgpr8_sgpr9_sgpr10_sgpr11'
# SIMPLE-NEXT: frameOffsetReg: '$sgpr12'
# SIMPLE-NEXT: stackPtrOffsetReg: '$sgpr13'
# SIMPLE-NEXT: argumentInfo:
# SIMPLE-NEXT: privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
# SIMPLE-NEXT: dispatchPtr: { reg: '$sgpr4_sgpr5' }
# SIMPLE-NEXT: queuePtr: { reg: '$sgpr6_sgpr7' }
# SIMPLE-NEXT: kernargSegmentPtr: { reg: '$sgpr4_sgpr5' }
# SIMPLE-NEXT: dispatchID: { reg: '$sgpr10_sgpr11' }
# SIMPLE-NEXT: workGroupIDX: { reg: '$sgpr6' }
# SIMPLE-NEXT: workGroupIDY: { reg: '$sgpr13' }
# SIMPLE-NEXT: workGroupIDZ: { reg: '$sgpr14' }
# SIMPLE-NEXT: LDSKernelId: { reg: '$sgpr15' }
# SIMPLE-NEXT: privateSegmentWaveByteOffset: { reg: '$sgpr7' }
# SIMPLE-NEXT: implicitArgPtr: { reg: '$sgpr8_sgpr9' }
# SIMPLE-NEXT: workItemIDX: { reg: '$vgpr0' }
# SIMPLE-NEXT: workItemIDY: { reg: '$vgpr31', mask: 1047552 }
# SIMPLE-NEXT: workItemIDZ: { reg: '$vgpr31', mask: 1072693248 }
# SIMPLE-NEXT: occupancy: 8
# SIMPLE-NEXT: body:
name: kernel0
machineFunctionInfo:
explicitKernArgSize: 128
maxKernArgAlign: 64
ldsSize: 2048
gdsSize: 256
isEntryFunction: true
noSignedZerosFPMath: false
memoryBound: true
waveLimiter: true
scratchRSrcReg: '$sgpr8_sgpr9_sgpr10_sgpr11'
frameOffsetReg: '$sgpr12'
stackPtrOffsetReg: '$sgpr13'
argumentInfo:
privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
kernargSegmentPtr: { reg: '$sgpr4_sgpr5' }
workGroupIDX: { reg: '$sgpr6' }
privateSegmentWaveByteOffset: { reg: '$sgpr7' }
workItemIDX: { reg: '$vgpr0' }
body: |
bb.0:
S_ENDPGM 0
...
# FIXME: Should be able to not print section for simple
---
# ALL-LABEL: name: no_mfi
# FULL: machineFunctionInfo:
# FULL-NEXT: explicitKernArgSize: 0
# FULL-NEXT: maxKernArgAlign: 1
# FULL-NEXT: ldsSize: 0
# FULL-NEXT: gdsSize: 0
# FULL-NEXT: dynLDSAlign: 1
# FULL-NEXT: isEntryFunction: false
# FULL-NEXT: isChainFunction: false
# FULL-NEXT: noSignedZerosFPMath: false
# FULL-NEXT: memoryBound: false
# FULL-NEXT: waveLimiter: false
# FULL-NEXT: hasSpilledSGPRs: false
# FULL-NEXT: hasSpilledVGPRs: false
# FULL-NEXT: scratchRSrcReg: '$private_rsrc_reg'
# FULL-NEXT: frameOffsetReg: '$fp_reg'
# FULL-NEXT: stackPtrOffsetReg: '$sp_reg'
# FULL-NEXT: bytesInStackArgArea: 0
# FULL-NEXT: returnsVoid: true
# FULL-NEXT: argumentInfo:
# FULL-NEXT: privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
# FULL-NEXT: dispatchPtr: { reg: '$sgpr4_sgpr5' }
# FULL-NEXT: queuePtr: { reg: '$sgpr6_sgpr7' }
# FULL-NEXT: dispatchID: { reg: '$sgpr10_sgpr11' }
# FULL-NEXT: workGroupIDX: { reg: '$sgpr12' }
# FULL-NEXT: workGroupIDY: { reg: '$sgpr13' }
# FULL-NEXT: workGroupIDZ: { reg: '$sgpr14' }
# FULL-NEXT: LDSKernelId: { reg: '$sgpr15' }
# FULL-NEXT: implicitArgPtr: { reg: '$sgpr8_sgpr9' }
# FULL-NEXT: workItemIDX: { reg: '$vgpr31', mask: 1023 }
# FULL-NEXT: workItemIDY: { reg: '$vgpr31', mask: 1047552 }
# FULL-NEXT: workItemIDZ: { reg: '$vgpr31', mask: 1072693248 }
# FULL-NEXT: psInputAddr: 0
# FULL-NEXT: psInputEnable: 0
# FULL-NEXT: maxMemoryClusterDWords: 8
# FULL-NEXT: mode:
# FULL-NEXT: ieee: true
# FULL-NEXT: dx10-clamp: true
# FULL-NEXT: fp32-input-denormals: true
# FULL-NEXT: fp32-output-denormals: true
# FULL-NEXT: fp64-fp16-input-denormals: true
# FULL-NEXT: fp64-fp16-output-denormals: true
# FULL-NEXT: highBitsOf32BitAddress: 0
# FULL-NEXT: occupancy: 10
# FULL-NEXT: vgprForAGPRCopy: ''
# FULL-NEXT: sgprForEXECCopy: ''
# FULL-NEXT: longBranchReservedReg: ''
# FULL-NEXT: hasInitWholeWave: false
# FULL-NEXT: body:
# SIMPLE: machineFunctionInfo:
# SIMPLE-NEXT: maxKernArgAlign: 1
# SIMPLE-NEXT: argumentInfo:
# SIMPLE-NEXT: privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
# SIMPLE-NEXT: dispatchPtr: { reg: '$sgpr4_sgpr5' }
# SIMPLE-NEXT: queuePtr: { reg: '$sgpr6_sgpr7' }
# SIMPLE-NEXT: dispatchID: { reg: '$sgpr10_sgpr11' }
# SIMPLE-NEXT: workGroupIDX: { reg: '$sgpr12' }
# SIMPLE-NEXT: workGroupIDY: { reg: '$sgpr13' }
# SIMPLE-NEXT: workGroupIDZ: { reg: '$sgpr14' }
# SIMPLE-NEXT: LDSKernelId: { reg: '$sgpr15' }
# SIMPLE-NEXT: implicitArgPtr: { reg: '$sgpr8_sgpr9' }
# SIMPLE-NEXT: workItemIDX: { reg: '$vgpr31', mask: 1023 }
# SIMPLE-NEXT: workItemIDY: { reg: '$vgpr31', mask: 1047552 }
# SIMPLE-NEXT: workItemIDZ: { reg: '$vgpr31', mask: 1072693248 }
# SIMPLE-NEXT: occupancy: 10
# SIMPLE-NEXT: body:
name: no_mfi
body: |
bb.0:
S_ENDPGM 0
...
---
# ALL-LABEL: name: empty_mfi
# FULL: machineFunctionInfo:
# FULL-NEXT: explicitKernArgSize: 0
# FULL-NEXT: maxKernArgAlign: 1
# FULL-NEXT: ldsSize: 0
# FULL-NEXT: gdsSize: 0
# FULL-NEXT: dynLDSAlign: 1
# FULL-NEXT: isEntryFunction: false
# FULL-NEXT: isChainFunction: false
# FULL-NEXT: noSignedZerosFPMath: false
# FULL-NEXT: memoryBound: false
# FULL-NEXT: waveLimiter: false
# FULL-NEXT: hasSpilledSGPRs: false
# FULL-NEXT: hasSpilledVGPRs: false
# FULL-NEXT: scratchRSrcReg: '$private_rsrc_reg'
# FULL-NEXT: frameOffsetReg: '$fp_reg'
# FULL-NEXT: stackPtrOffsetReg: '$sp_reg'
# FULL-NEXT: bytesInStackArgArea: 0
# FULL-NEXT: returnsVoid: true
# FULL-NEXT: argumentInfo:
# FULL-NEXT: privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
# FULL-NEXT: dispatchPtr: { reg: '$sgpr4_sgpr5' }
# FULL-NEXT: queuePtr: { reg: '$sgpr6_sgpr7' }
# FULL-NEXT: dispatchID: { reg: '$sgpr10_sgpr11' }
# FULL-NEXT: workGroupIDX: { reg: '$sgpr12' }
# FULL-NEXT: workGroupIDY: { reg: '$sgpr13' }
# FULL-NEXT: workGroupIDZ: { reg: '$sgpr14' }
# FULL-NEXT: LDSKernelId: { reg: '$sgpr15' }
# FULL-NEXT: implicitArgPtr: { reg: '$sgpr8_sgpr9' }
# FULL-NEXT: workItemIDX: { reg: '$vgpr31', mask: 1023 }
# FULL-NEXT: workItemIDY: { reg: '$vgpr31', mask: 1047552 }
# FULL-NEXT: workItemIDZ: { reg: '$vgpr31', mask: 1072693248 }
# FULL-NEXT: psInputAddr: 0
# FULL-NEXT: psInputEnable: 0
# FULL-NEXT: maxMemoryClusterDWords: 8
# FULL-NEXT: mode:
# FULL-NEXT: ieee: true
# FULL-NEXT: dx10-clamp: true
# FULL-NEXT: fp32-input-denormals: true
# FULL-NEXT: fp32-output-denormals: true
# FULL-NEXT: fp64-fp16-input-denormals: true
# FULL-NEXT: fp64-fp16-output-denormals: true
# FULL-NEXT: highBitsOf32BitAddress: 0
# FULL-NEXT: occupancy: 10
# FULL-NEXT: vgprForAGPRCopy: ''
# FULL-NEXT: sgprForEXECCopy: ''
# FULL-NEXT: longBranchReservedReg: ''
# FULL-NEXT: hasInitWholeWave: false
# FULL-NEXT: body:
# SIMPLE: machineFunctionInfo:
# SIMPLE-NEXT: maxKernArgAlign: 1
# SIMPLE-NEXT: argumentInfo:
# SIMPLE-NEXT: privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
# SIMPLE-NEXT: dispatchPtr: { reg: '$sgpr4_sgpr5' }
# SIMPLE-NEXT: queuePtr: { reg: '$sgpr6_sgpr7' }
# SIMPLE-NEXT: dispatchID: { reg: '$sgpr10_sgpr11' }
# SIMPLE-NEXT: workGroupIDX: { reg: '$sgpr12' }
# SIMPLE-NEXT: workGroupIDY: { reg: '$sgpr13' }
# SIMPLE-NEXT: workGroupIDZ: { reg: '$sgpr14' }
# SIMPLE-NEXT: LDSKernelId: { reg: '$sgpr15' }
# SIMPLE-NEXT: implicitArgPtr: { reg: '$sgpr8_sgpr9' }
# SIMPLE-NEXT: workItemIDX: { reg: '$vgpr31', mask: 1023 }
# SIMPLE-NEXT: workItemIDY: { reg: '$vgpr31', mask: 1047552 }
# SIMPLE-NEXT: workItemIDZ: { reg: '$vgpr31', mask: 1072693248 }
# SIMPLE-NEXT: occupancy: 10
# SIMPLE-NEXT: body:
name: empty_mfi
machineFunctionInfo:
body: |
bb.0:
S_ENDPGM 0
...
---
# ALL-LABEL: name: empty_mfi_entry_func
# FULL: machineFunctionInfo:
# FULL-NEXT: explicitKernArgSize: 0
# FULL-NEXT: maxKernArgAlign: 1
# FULL-NEXT: ldsSize: 0
# FULL-NEXT: gdsSize: 0
# FULL-NEXT: dynLDSAlign: 1
# FULL-NEXT: isEntryFunction: true
# FULL-NEXT: isChainFunction: false
# FULL-NEXT: noSignedZerosFPMath: false
# FULL-NEXT: memoryBound: false
# FULL-NEXT: waveLimiter: false
# FULL-NEXT: hasSpilledSGPRs: false
# FULL-NEXT: hasSpilledVGPRs: false
# FULL-NEXT: scratchRSrcReg: '$private_rsrc_reg'
# FULL-NEXT: frameOffsetReg: '$fp_reg'
# FULL-NEXT: stackPtrOffsetReg: '$sp_reg'
# FULL-NEXT: bytesInStackArgArea: 0
# FULL-NEXT: returnsVoid: true
# FULL-NEXT: argumentInfo:
# FULL-NEXT: privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
# FULL-NEXT: dispatchPtr: { reg: '$sgpr4_sgpr5' }
# FULL-NEXT: queuePtr: { reg: '$sgpr6_sgpr7' }
# FULL-NEXT: dispatchID: { reg: '$sgpr10_sgpr11' }
# FULL-NEXT: workGroupIDX: { reg: '$sgpr12' }
# FULL-NEXT: workGroupIDY: { reg: '$sgpr13' }
# FULL-NEXT: workGroupIDZ: { reg: '$sgpr14' }
# FULL-NEXT: LDSKernelId: { reg: '$sgpr15' }
# FULL-NEXT: implicitArgPtr: { reg: '$sgpr8_sgpr9' }
# FULL-NEXT: workItemIDX: { reg: '$vgpr31', mask: 1023 }
# FULL-NEXT: workItemIDY: { reg: '$vgpr31', mask: 1047552 }
# FULL-NEXT: workItemIDZ: { reg: '$vgpr31', mask: 1072693248 }
# FULL-NEXT: psInputAddr: 0
# FULL-NEXT: psInputEnable: 0
# FULL-NEXT: maxMemoryClusterDWords: 8
# FULL-NEXT: mode:
# FULL-NEXT: ieee: true
# FULL-NEXT: dx10-clamp: true
# FULL-NEXT: fp32-input-denormals: true
# FULL-NEXT: fp32-output-denormals: true
# FULL-NEXT: fp64-fp16-input-denormals: true
# FULL-NEXT: fp64-fp16-output-denormals: true
# FULL-NEXT: highBitsOf32BitAddress: 0
# FULL-NEXT: occupancy: 10
# FULL-NEXT: vgprForAGPRCopy: ''
# FULL-NEXT: sgprForEXECCopy: ''
# FULL-NEXT: longBranchReservedReg: ''
# FULL-NEXT: hasInitWholeWave: false
# FULL-NEXT: body:
# SIMPLE: machineFunctionInfo:
# SIMPLE-NEXT: maxKernArgAlign: 1
# SIMPLE-NEXT: isEntryFunction: true
# SIMPLE-NEXT: argumentInfo:
# SIMPLE-NEXT: privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
# SIMPLE-NEXT: dispatchPtr: { reg: '$sgpr4_sgpr5' }
# SIMPLE-NEXT: queuePtr: { reg: '$sgpr6_sgpr7' }
# SIMPLE-NEXT: dispatchID: { reg: '$sgpr10_sgpr11' }
# SIMPLE-NEXT: workGroupIDX: { reg: '$sgpr12' }
# SIMPLE-NEXT: workGroupIDY: { reg: '$sgpr13' }
# SIMPLE-NEXT: workGroupIDZ: { reg: '$sgpr14' }
# SIMPLE-NEXT: LDSKernelId: { reg: '$sgpr15' }
# SIMPLE-NEXT: implicitArgPtr: { reg: '$sgpr8_sgpr9' }
# SIMPLE-NEXT: workItemIDX: { reg: '$vgpr31', mask: 1023 }
# SIMPLE-NEXT: workItemIDY: { reg: '$vgpr31', mask: 1047552 }
# SIMPLE-NEXT: workItemIDZ: { reg: '$vgpr31', mask: 1072693248 }
# SIMPLE-NEXT: occupancy: 10
# SIMPLE-NEXT: body:
name: empty_mfi_entry_func
machineFunctionInfo:
isEntryFunction: true
body: |
bb.0:
S_ENDPGM 0
...
---
# ALL-LABEL: name: default_regs_mfi
# FULL: scratchRSrcReg: '$private_rsrc_reg'
# FULL-NEXT: frameOffsetReg: '$fp_reg'
# FULL-NEXT: stackPtrOffsetReg: '$sp_reg'
# SIMPLE-NOT: scratchRSrcReg
# SIMPLE-NOT:: stackPtrOffsetReg
name: default_regs_mfi
machineFunctionInfo:
scratchRSrcReg: '$private_rsrc_reg'
body: |
bb.0:
S_ENDPGM 0
...
---
# ALL-LABEL: name: fake_stack_arginfo
# FULL: argumentInfo:
# FULL: privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
# FULL: flatScratchInit: { offset: 4 }
# FULL: workItemIDY: { reg: '$vgpr0', mask: 65280 }
# SIMPLE: argumentInfo:
# SIMPLE-NEXT: privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
# SIMPLE-NEXT: dispatchPtr: { reg: '$sgpr4_sgpr5' }
# SIMPLE-NEXT: queuePtr: { reg: '$sgpr6_sgpr7' }
# SIMPLE-NEXT: dispatchID: { reg: '$sgpr10_sgpr11' }
# SIMPLE-NEXT: flatScratchInit: { offset: 4 }
# SIMPLE-NEXT: workGroupIDX: { reg: '$sgpr12' }
# SIMPLE-NEXT: workGroupIDY: { reg: '$sgpr13' }
# SIMPLE-NEXT: workGroupIDZ: { reg: '$sgpr14' }
# SIMPLE-NEXT: LDSKernelId: { reg: '$sgpr15' }
# SIMPLE-NEXT: implicitArgPtr: { reg: '$sgpr8_sgpr9' }
# SIMPLE-NEXT: workItemIDX: { reg: '$vgpr31', mask: 1023 }
# SIMPLE-NEXT: workItemIDY: { reg: '$vgpr0', mask: 65280 }
# SIMPLE-NEXT: workItemIDZ: { reg: '$vgpr31', mask: 1072693248 }
name: fake_stack_arginfo
machineFunctionInfo:
argumentInfo:
flatScratchInit: { offset: 4 }
workItemIDY: { reg: '$vgpr0' , mask: 0xff00 }
body: |
bb.0:
S_ENDPGM 0
...
---
# ALL-LABEL: name: parse_mode
# ALL: mode:
# ALL-NEXT: ieee: false
# ALL-NEXT: dx10-clamp: false
# ALL-NEXT: fp32-input-denormals: false
# ALL-NEXT: fp32-output-denormals: false
# ALL-NEXT: fp64-fp16-input-denormals: false
# ALL-NEXT: fp64-fp16-output-denormals: false
name: parse_mode
machineFunctionInfo:
mode:
ieee: false
dx10-clamp: false
fp32-input-denormals: false
fp32-output-denormals: false
fp64-fp16-input-denormals: false
fp64-fp16-output-denormals: false
body: |
bb.0:
S_ENDPGM 0
...
---
# ALL-LABEL: name: parse_spilled_regs
# ALL: machineFunctionInfo:
# ALL: hasSpilledSGPRs: true
# ALL-NEXT: hasSpilledVGPRs: true
name: parse_spilled_regs
machineFunctionInfo:
hasSpilledSGPRs: true
hasSpilledVGPRs: true
body: |
bb.0:
S_ENDPGM 0
...
---
# ALL-LABEL: name: dyn_lds_with_alignment
# FULL: ldsSize: 0
# FULL-NEXT: gdsSize: 0
# FULL-NEXT: dynLDSAlign: 8
# SIMPLE: dynLDSAlign: 8
name: dyn_lds_with_alignment
machineFunctionInfo:
dynLDSAlign: 8
body: |
bb.0:
S_ENDPGM 0
...
---
# ALL-LABEL: name: occupancy_10
# ALL: occupancy: 10
name: occupancy_10
machineFunctionInfo:
occupancy: 10
body: |
bb.0:
S_ENDPGM 0
...
---
# ALL-LABEL: name: occupancy_3
# ALL: occupancy: 3
name: occupancy_3
machineFunctionInfo:
occupancy: 3
body: |
bb.0:
S_ENDPGM 0
...
---
# ALL-LABEL: name: scavenge_fi
# ALL: scavengeFI: '%stack.0'
name: scavenge_fi
stack:
- { id: 0, name: '', type: spill-slot, offset: 0, size: 4, alignment: 4 }
machineFunctionInfo:
scavengeFI: '%stack.0'
body: |
bb.0:
S_ENDPGM 0
...
---
# ALL-LABEL: name: bytes_in_stack_arg_area
# ALL: bytesInStackArgArea: 444
name: bytes_in_stack_arg_area
machineFunctionInfo:
bytesInStackArgArea: 444
body: |
bb.0:
SI_RETURN
...
---
# ALL-LABEL: name: returns_void_true
# FULL: returnsVoid: true
# SIMPLE-NOT: returnsVoid
name: returns_void_true
machineFunctionInfo:
returnsVoid: true
body: |
bb.0:
SI_RETURN
...
---
# ALL-LABEL: name: returns_void_false
# ALL: returnsVoid: false
name: returns_void_false
machineFunctionInfo:
returnsVoid: false
body: |
bb.0:
SI_RETURN
...
---
# ALL-LABEL: name: vgpr_for_agpr_copy
# ALL: vgprForAGPRCopy: '$vgpr2'
name: vgpr_for_agpr_copy
machineFunctionInfo:
vgprForAGPRCopy: '$vgpr2'
body: |
bb.0:
SI_RETURN
...
---
# ALL-LABEL: name: vgpr_for_agpr_copy_noreg
# FULL: vgprForAGPRCopy: ''
# SIMPLE-NOT: vgprForAGPRCopy
name: vgpr_for_agpr_copy_noreg
machineFunctionInfo:
vgprForAGPRCopy: '$noreg'
body: |
bb.0:
SI_RETURN
...
---
# ALL-LABEL: name: sgpr_for_exec_copy
# ALL: sgprForEXECCopy: '$sgpr2_sgpr3'
name: sgpr_for_exec_copy
machineFunctionInfo:
sgprForEXECCopy: '$sgpr2_sgpr3'
body: |
bb.0:
SI_RETURN
...
---
# ALL-LABEL: name: sgpr_for_exec_copy_noreg
# FULL: sgprForEXECCopy: ''
# SIMPLE-NOT: sgprForEXECCopy
name: sgpr_for_exec_copy_noreg
machineFunctionInfo:
sgprForEXECCopy: '$noreg'
body: |
bb.0:
SI_RETURN
...
---
name: vregs
# FULL: registers:
# FULL-NEXT: - { id: 0, class: vgpr_32, preferred-register: '$vgpr1', flags: [ WWM_REG ] }
# FULL-NEXT: - { id: 1, class: sgpr_64, preferred-register: '$sgpr0_sgpr1', flags: [ ] }
# FULL-NEXT: - { id: 2, class: sgpr_64, preferred-register: '', flags: [ ] }
registers:
- { id: 0, class: vgpr_32, preferred-register: $vgpr1, flags: [ WWM_REG ]}
- { id: 1, class: sgpr_64, preferred-register: $sgpr0_sgpr1 }
- { id: 2, class: sgpr_64, flags: [ ] }
body: |
bb.0:
%2:sgpr_64 = COPY %1
%1:sgpr_64 = COPY %0
...
---
# ALL-LABEL: name: max_memory_cluster_dwords
# ALL: maxMemoryClusterDWords: 16
name: max_memory_cluster_dwords
machineFunctionInfo:
maxMemoryClusterDWords: 16
body: |
bb.0:
SI_RETURN
...
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