float parsing benchmarks have regressed on 32 bit platforms #66838
Description
System.Text.Json.Tests.Perf_Get.GetSingle has regressed20-35% on 32 bit platforms.
Looking at the commit diff it's most likely caused by #62301 (cc @tannergooding )
Repro:
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 net7.0 --filter System.Text.Json.Tests.Perf_Get.GetSingle --architecture x86Details
| Result | Base | Diff | Ratio | Operating System | Bit |
|---|---|---|---|---|---|
| Same | 4212.28 | 4309.12 | 0.98 | Windows 11 | X64 |
| Same | 3148.27 | 3090.19 | 1.02 | Windows 11 | X64 |
| Same | 6700.49 | 6771.64 | 0.99 | Windows 11 | X64 |
| Same | 4020.62 | 3911.91 | 1.03 | Windows 10 | X64 |
| Same | 4762.67 | 4713.94 | 1.01 | Windows 11 | X64 |
| Same | 6261.90 | 6353.20 | 0.99 | Windows 11 | X64 |
| Same | 3296.56 | 3302.37 | 1.00 | ubuntu 18.04 | X64 |
| Same | 3239.55 | 3279.82 | 0.99 | ubuntu 20.04 | X64 |
| Same | 4849.07 | 4823.87 | 1.01 | ubuntu 18.04 | X64 |
| Faster | 8014.18 | 7156.92 | 1.12 | ubuntu 18.04 | X64 |
| Same | 5664.32 | 5763.96 | 0.98 | pop 20.04 | X64 |
| Same | 4093.16 | 4155.46 | 0.99 | alpine 3.13 | X64 |
| Same | 4142.95 | 4086.97 | 1.01 | debian 11 | X64 |
| Same | 3019.47 | 2769.70 | 1.09 | macOS Monterey 12.2.1 | Arm64 |
| Same | 5855.04 | 6198.09 | 0.94 | Windows 10 | Arm64 |
| Same | 5835.18 | 6237.83 | 0.94 | Windows 11 | Arm64 |
| Slower | 6937.67 | 9177.62 | 0.76 | Windows 10 | X86 |
| Slower | 6132.79 | 7625.77 | 0.80 | Windows 10 | X86 |
| Slower | 5636.96 | 7136.83 | 0.79 | Windows 10 | X86 |
| Slower | 7610.08 | 11632.67 | 0.65 | Windows 10 | Arm |
| Same | 6309.44 | 6450.41 | 0.98 | macOS Big Sur 11.6.3 | X64 |
| Same | 5345.03 | 5463.62 | 0.98 | macOS Monterey 12.2.1 | X64 |
| Same | 5618.79 | 5573.90 | 1.01 | macOS Monterey 12.2.1 | X64 |