[clang] [llvm] Try to use non-volatile registers for `preserve_none` parameters (PR #88333)

[David Li via llvm-commits]

david-xl wrote:

> The Windows x64 Buildkite CI job is failing, but I can't find any failed tests in the downloaded logs. Any advice?

You can download the raw log file from the details view. From the log, it looks like not related to this change -- the flang build run out of heap space:

C:\BuildTools\VC\Tools\MSVC\14.29.30133\include\type_traits(1432): fatal error C1060: compiler is out of heap space

https://github.com/llvm/llvm-project/pull/88333