We were using the default getScalarizationOverhead expansion for extraction costs, which adds up all the individual element extraction costs.
This is fine for 128-bit vectors, but for 256/512-bit vectors each element extraction also has to account for extracting the upper 128-bit subvector extraction before it can handle the element. For scalarization costs we only need to extract each demanded subvector once.
Differential Revision: https://reviews.llvm.org/D125527
The analysis passes output function name encapsulated in `'` braces,
but LV uses `"`. Harmonizing this may help in creating an update script
for the LV costmodel test checks.
Reviewed By: fhahn
Differential Revision: https://reviews.llvm.org/D121105
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3
For load we have:
https://godbolt.org/z/c1jjKqP7b - for intels `Block RThroughput: <=82.0`; for ryzens, `Block RThroughput: <=26.0`
So pick cost of `82`.
For store we have:
https://godbolt.org/z/YM4ErY8x7 - for intels `Block RThroughput: <=90.0`; for ryzens, `Block RThroughput: <=25.5`
So pick cost of `90`.
I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.
Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D111013
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3
For load we have:
https://godbolt.org/z/Gz8hhqfTM - for intels `Block RThroughput: <=43.0`; for ryzens, `Block RThroughput: <=14.0`
So pick cost of `43`.
For store we have:
https://godbolt.org/z/9vrdssYa8 - for intels `Block RThroughput: <=27.0`; for ryzens, `Block RThroughput: <=12.0`
So pick cost of `27`.
I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.
Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D111012
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3
For load we have:
https://godbolt.org/z/v98qPTTf6 - for intels `Block RThroughput: =18.0`; for ryzens, `Block RThroughput: =6.0`
So pick cost of `18`.
For store we have:
https://godbolt.org/z/rn5T9E8q6 - for intels `Block RThroughput: <=16.0`; for ryzens, `Block RThroughput: <=4.5`
So pick cost of `16`.
I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.
Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D111011
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3
For load we have:
https://godbolt.org/z/4sWhs396o - for intels `Block RThroughput: =14.0`; for ryzens, `Block RThroughput: <=7.0`
So pick cost of `14`.
For store we have:
https://godbolt.org/z/4sWhs396o - for intels `Block RThroughput: =9.0`; for ryzens, `Block RThroughput: <=3.0`
So pick cost of `9`.
I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.
Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D111010
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3
For load we have:
https://godbolt.org/z/jvj6jzns5 - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: <=3.0`
So pick cost of `6`.
For store we have:
https://godbolt.org/z/ros7eebMP - for intels `Block RThroughput: =7.0`; for ryzens, `Block RThroughput: <=3.0`
So pick cost of `7`.
I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.
Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D111008
Simon Pilgrim