bc6d07ca46
This has been a very painful missing feature that has made producing reduced testcases difficult. In particular the various registers determined for stack access during function lowering were necessary to avoid undefined register errors in a large percentage of cases. Implement a subset of the important fields that need to be preserved for AMDGPU. Most of the changes are to support targets parsing register fields and properly reporting errors. The biggest sort-of bug remaining is for fields that can be initialized from the IR section will be overwritten by a default initialized machineFunctionInfo section. Another remaining bug is the machineFunctionInfo section is still printed even if empty. llvm-svn: 356215
152 lines
4.0 KiB
YAML
152 lines
4.0 KiB
YAML
# RUN: llc -mtriple=amdgcn-amd-amdhsa -run-pass=none -verify-machineinstrs %s -o - | FileCheck -check-prefixes=FULL,ALL %s
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# RUN: llc -mtriple=amdgcn-amd-amdhsa -run-pass=none -simplify-mir -verify-machineinstrs %s -o - | FileCheck -check-prefixes=SIMPLE,ALL %s
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---
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# ALL-LABEL: name: kernel0
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# FULL: machineFunctionInfo:
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# FULL-NEXT: explicitKernArgSize: 128
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# FULL-NEXT: maxKernArgAlign: 64
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# FULL-NEXT: ldsSize: 2048
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# FULL-NEXT: isEntryFunction: true
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# FULL-NEXT: noSignedZerosFPMath: false
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# FULL-NEXT: memoryBound: true
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# FULL-NEXT: waveLimiter: true
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# FULL-NEXT: scratchRSrcReg: '$sgpr8_sgpr9_sgpr10_sgpr11'
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# FULL-NEXT: scratchWaveOffsetReg: '$sgpr12'
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# FULL-NEXT: frameOffsetReg: '$sgpr12'
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# FULL-NEXT: stackPtrOffsetReg: '$sgpr13'
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# FULL-NEXT: body:
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# SIMPLE: machineFunctionInfo:
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# SIMPLE-NEXT: explicitKernArgSize: 128
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# SIMPLE-NEXT: maxKernArgAlign: 64
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# SIMPLE-NEXT: ldsSize: 2048
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# SIMPLE-NEXT: isEntryFunction: true
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# SIMPLE-NEXT: memoryBound: true
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# SIMPLE-NEXT: waveLimiter: true
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# SIMPLE-NEXT: scratchRSrcReg: '$sgpr8_sgpr9_sgpr10_sgpr11'
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# SIMPLE-NEXT: scratchWaveOffsetReg: '$sgpr12'
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# SIMPLE-NEXT: frameOffsetReg: '$sgpr12'
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# SIMPLE-NEXT: stackPtrOffsetReg: '$sgpr13'
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# SIMPLE-NEXT: body:
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name: kernel0
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machineFunctionInfo:
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explicitKernArgSize: 128
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maxKernArgAlign: 64
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ldsSize: 2048
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isEntryFunction: true
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noSignedZerosFPMath: false
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memoryBound: true
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waveLimiter: true
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scratchRSrcReg: '$sgpr8_sgpr9_sgpr10_sgpr11'
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scratchWaveOffsetReg: '$sgpr12'
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frameOffsetReg: '$sgpr12'
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stackPtrOffsetReg: '$sgpr13'
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body: |
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bb.0:
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S_ENDPGM 0
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...
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# FIXME: Should be able to not print section for simple
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---
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# ALL-LABEL: name: no_mfi
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# FULL: machineFunctionInfo:
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# FULL-NEXT: explicitKernArgSize: 0
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# FULL-NEXT: maxKernArgAlign: 0
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# FULL-NEXT: ldsSize: 0
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# FULL-NEXT: isEntryFunction: false
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# FULL-NEXT: noSignedZerosFPMath: false
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# FULL-NEXT: memoryBound: false
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# FULL-NEXT: waveLimiter: false
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# FULL-NEXT: scratchRSrcReg: '$private_rsrc_reg'
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# FULL-NEXT: scratchWaveOffsetReg: '$scratch_wave_offset_reg'
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# FULL-NEXT: frameOffsetReg: '$fp_reg'
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# FULL-NEXT: stackPtrOffsetReg: '$sp_reg'
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# SIMPLE: machineFunctionInfo:
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# SIMPLE-NEXT: body:
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name: no_mfi
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body: |
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bb.0:
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S_ENDPGM 0
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...
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---
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# ALL-LABEL: name: empty_mfi
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# FULL: machineFunctionInfo:
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# FULL-NEXT: explicitKernArgSize: 0
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# FULL-NEXT: maxKernArgAlign: 0
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# FULL-NEXT: ldsSize: 0
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# FULL-NEXT: isEntryFunction: false
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# FULL-NEXT: noSignedZerosFPMath: false
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# FULL-NEXT: memoryBound: false
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# FULL-NEXT: waveLimiter: false
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# FULL-NEXT: scratchRSrcReg: '$private_rsrc_reg'
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# FULL-NEXT: scratchWaveOffsetReg: '$scratch_wave_offset_reg'
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# FULL-NEXT: frameOffsetReg: '$fp_reg'
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# FULL-NEXT: stackPtrOffsetReg: '$sp_reg'
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# SIMPLE: machineFunctionInfo:
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# SIMPLE-NEXT: body:
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name: empty_mfi
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machineFunctionInfo:
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body: |
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bb.0:
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S_ENDPGM 0
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...
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---
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# ALL-LABEL: name: empty_mfi_entry_func
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# FULL: machineFunctionInfo:
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# FULL-NEXT: explicitKernArgSize: 0
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# FULL-NEXT: maxKernArgAlign: 0
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# FULL-NEXT: ldsSize: 0
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# FULL-NEXT: isEntryFunction: true
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# FULL-NEXT: noSignedZerosFPMath: false
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# FULL-NEXT: memoryBound: false
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# FULL-NEXT: waveLimiter: false
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# FULL-NEXT: scratchRSrcReg: '$private_rsrc_reg'
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# FULL-NEXT: scratchWaveOffsetReg: '$scratch_wave_offset_reg'
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# FULL-NEXT: frameOffsetReg: '$fp_reg'
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# FULL-NEXT: stackPtrOffsetReg: '$sp_reg'
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# SIMPLE: machineFunctionInfo:
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# SIMPLE-NEXT: isEntryFunction: true
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# SIMPLE-NEXT: body:
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name: empty_mfi_entry_func
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machineFunctionInfo:
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isEntryFunction: true
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body: |
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bb.0:
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S_ENDPGM 0
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...
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---
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# ALL-LABEL: name: default_regs_mfi
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# FULL: scratchRSrcReg: '$private_rsrc_reg'
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# FULL-NEXT: scratchWaveOffsetReg: '$scratch_wave_offset_reg'
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# FULL-NEXT: frameOffsetReg: '$fp_reg'
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# FULL-NEXT: stackPtrOffsetReg: '$sp_reg'
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# SIMPLE-NOT: scratchRSrcReg
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# SIMPLE-NOT: scratchWaveOffsetReg
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# SIMPLE-NOT:: stackPtrOffsetReg
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name: default_regs_mfi
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machineFunctionInfo:
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scratchRSrcReg: '$private_rsrc_reg'
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body: |
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bb.0:
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S_ENDPGM 0
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...
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