Make stdlib extensions backwards compatible

[vchuravy]

Fixes #508 (comment)

[github-actions]

Benchmark Results

	main	3d05201...	main/3d052019fac473...
saxpy/default/Float16/1024	2.77 ± 0.19 μs	2.77 ± 0.19 μs	1
saxpy/default/Float16/1048576	2.07 ± 0.015 ms	2.07 ± 0.012 ms	1
saxpy/default/Float16/16384	0.0327 ± 0.00013 ms	0.0327 ± 0.00014 ms	1
saxpy/default/Float16/2048	5.16 ± 0.065 μs	5.16 ± 0.062 μs	0.999
saxpy/default/Float16/256	0.96 ± 0.11 μs	1.03 ± 0.13 μs	0.933
saxpy/default/Float16/262144	0.515 ± 0.0014 ms	0.516 ± 0.0014 ms	1
saxpy/default/Float16/32768	0.0649 ± 0.00015 ms	0.0649 ± 0.00017 ms	1
saxpy/default/Float16/4096	10 ± 0.05 μs	10 ± 0.05 μs	1
saxpy/default/Float16/512	1.56 ± 0.089 μs	1.56 ± 0.079 μs	0.996
saxpy/default/Float16/64	0.611 ± 0.014 μs	0.628 ± 0.013 μs	0.974
saxpy/default/Float16/65536	0.129 ± 0.00027 ms	0.129 ± 0.00026 ms	1
saxpy/default/Float32/1024	1.02 ± 0.011 μs	1.04 ± 0.012 μs	0.983
saxpy/default/Float32/1048576	0.884 ± 0.014 ms	0.886 ± 0.014 ms	0.998
saxpy/default/Float32/16384	14.4 ± 0.11 μs	14.4 ± 0.12 μs	0.999
saxpy/default/Float32/2048	1.73 ± 0.02 μs	1.72 ± 0.016 μs	1
saxpy/default/Float32/256	0.525 ± 0.12 μs	0.529 ± 0.12 μs	0.992
saxpy/default/Float32/262144	0.221 ± 0.00079 ms	0.221 ± 0.0008 ms	0.998
saxpy/default/Float32/32768	28.3 ± 0.15 μs	28.3 ± 0.14 μs	1
saxpy/default/Float32/4096	3.03 ± 0.023 μs	3.02 ± 0.022 μs	1
saxpy/default/Float32/512	0.691 ± 0.11 μs	0.694 ± 0.11 μs	0.995
saxpy/default/Float32/64	0.404 ± 0.0053 μs	0.412 ± 0.0043 μs	0.981
saxpy/default/Float32/65536	0.056 ± 0.00031 ms	0.056 ± 0.0003 ms	1
saxpy/default/Float64/1024	1.07 ± 0.027 μs	1.08 ± 0.02 μs	0.997
saxpy/default/Float64/1048576	0.992 ± 0.049 ms	0.953 ± 0.046 ms	1.04
saxpy/default/Float64/16384	15.9 ± 0.12 μs	15.9 ± 0.94 μs	1
saxpy/default/Float64/2048	1.75 ± 0.018 μs	1.77 ± 0.024 μs	0.988
saxpy/default/Float64/256	0.528 ± 0.0064 μs	0.541 ± 0.0081 μs	0.977
saxpy/default/Float64/262144	0.244 ± 0.0059 ms	0.228 ± 0.013 ms	1.07
saxpy/default/Float64/32768	31.5 ± 0.53 μs	31.3 ± 2.1 μs	1
saxpy/default/Float64/4096	3.04 ± 0.034 μs	3.05 ± 0.031 μs	0.997
saxpy/default/Float64/512	0.708 ± 0.11 μs	0.714 ± 0.11 μs	0.992
saxpy/default/Float64/64	0.406 ± 0.0046 μs	0.423 ± 0.0052 μs	0.959
saxpy/default/Float64/65536	0.062 ± 0.0018 ms	0.0601 ± 0.0037 ms	1.03
saxpy/static workgroup=(1024,)/Float16/1024	2.07 ± 0.2 μs	2.09 ± 0.21 μs	0.99
saxpy/static workgroup=(1024,)/Float16/1048576	0.164 ± 0.011 ms	0.161 ± 0.0089 ms	1.02
saxpy/static workgroup=(1024,)/Float16/16384	4.33 ± 0.21 μs	4.39 ± 0.26 μs	0.987
saxpy/static workgroup=(1024,)/Float16/2048	2.1 ± 0.21 μs	2.12 ± 0.21 μs	0.993
saxpy/static workgroup=(1024,)/Float16/256	2.61 ± 0.032 μs	2.64 ± 0.034 μs	0.991
saxpy/static workgroup=(1024,)/Float16/262144	0.0439 ± 0.0028 ms	0.0436 ± 0.002 ms	1.01
saxpy/static workgroup=(1024,)/Float16/32768	6.78 ± 0.32 μs	6.66 ± 0.31 μs	1.02
saxpy/static workgroup=(1024,)/Float16/4096	2.42 ± 0.031 μs	2.42 ± 0.031 μs	0.997
saxpy/static workgroup=(1024,)/Float16/512	3.12 ± 0.06 μs	3.15 ± 0.07 μs	0.99
saxpy/static workgroup=(1024,)/Float16/64	2.23 ± 0.021 μs	2.26 ± 0.021 μs	0.984
saxpy/static workgroup=(1024,)/Float16/65536	12.9 ± 0.66 μs	12.8 ± 0.67 μs	1.01
saxpy/static workgroup=(1024,)/Float32/1024	1.95 ± 0.023 μs	1.93 ± 0.023 μs	1.01
saxpy/static workgroup=(1024,)/Float32/1048576	0.245 ± 0.014 ms	0.248 ± 0.016 ms	0.99
saxpy/static workgroup=(1024,)/Float32/16384	4.81 ± 0.75 μs	4.75 ± 0.83 μs	1.01
saxpy/static workgroup=(1024,)/Float32/2048	2.25 ± 0.2 μs	2.26 ± 0.2 μs	0.997
saxpy/static workgroup=(1024,)/Float32/256	2.72 ± 1.6 μs	2.61 ± 0.39 μs	1.04
saxpy/static workgroup=(1024,)/Float32/262144	0.066 ± 0.0038 ms	0.0656 ± 0.0043 ms	1.01
saxpy/static workgroup=(1024,)/Float32/32768	8.33 ± 1.6 μs	7.86 ± 1.3 μs	1.06
saxpy/static workgroup=(1024,)/Float32/4096	2.56 ± 0.082 μs	2.54 ± 0.087 μs	1.01
saxpy/static workgroup=(1024,)/Float32/512	2.48 ± 0.21 μs	2.46 ± 0.21 μs	1.01
saxpy/static workgroup=(1024,)/Float32/64	2.43 ± 0.048 μs	2.4 ± 0.047 μs	1.01
saxpy/static workgroup=(1024,)/Float32/65536	18.6 ± 1.9 μs	17.8 ± 1.6 μs	1.04
saxpy/static workgroup=(1024,)/Float64/1024	2.02 ± 0.026 μs	2.03 ± 0.026 μs	0.995
saxpy/static workgroup=(1024,)/Float64/1048576	0.536 ± 0.091 ms	0.519 ± 0.039 ms	1.03
saxpy/static workgroup=(1024,)/Float64/16384	8.3 ± 1.5 μs	7.78 ± 1.4 μs	1.07
saxpy/static workgroup=(1024,)/Float64/2048	2.5 ± 0.23 μs	2.5 ± 0.24 μs	0.998
saxpy/static workgroup=(1024,)/Float64/256	2.39 ± 0.049 μs	2.4 ± 0.046 μs	0.996
saxpy/static workgroup=(1024,)/Float64/262144	0.124 ± 0.0086 ms	0.124 ± 0.0087 ms	1
saxpy/static workgroup=(1024,)/Float64/32768	18.7 ± 2.3 μs	17.2 ± 1.6 μs	1.08
saxpy/static workgroup=(1024,)/Float64/4096	3.12 ± 0.34 μs	3.11 ± 0.35 μs	1
saxpy/static workgroup=(1024,)/Float64/512	2.36 ± 0.04 μs	2.38 ± 0.041 μs	0.99
saxpy/static workgroup=(1024,)/Float64/64	2.37 ± 0.075 μs	2.37 ± 0.076 μs	1
saxpy/static workgroup=(1024,)/Float64/65536	0.036 ± 0.0031 ms	0.0358 ± 0.0021 ms	1.01
time_to_load	0.311 ± 0.0012 s	0.311 ± 0.0019 s	1

Benchmark Plots

A plot of the benchmark results have been uploaded as an artifact to the workflow run for this PR.
Go to "Actions"->"Benchmark a pull request"->[the most recent run]->"Artifacts" (at the bottom).