[Ppc64le] binaryformatter and tensors tests fix

[alhad-deshpande]

Fixes #97296. This is a backport PR for release/9.0 branch.

Customer Impact

• Customer reported
• Found internally

The IBM team found issues related to float 32 bit load/store operations targeting their ppc64le architecture. This change alters the runtime to generate correct assembler code whenever float32 is used in C# applications.

Regression

• Yes
• No

[If yes, specify when the regression was introduced. Provide the PR or commit if known.]

Testing

Manual testing

Risk

Low - this change does not target anything we directly ship

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[alhad-deshpande]

@akoeplinger
Created this new PR for backporting changes of PR #107678 as directed by @leecow. This is a required PR to get merged in .NET9 release branch as changes are critical related to float32 load/store operations.. Added business case above. Can you please merge this PR?

Cc: @uweigand, @janani66

[jeffschwMSFT]

lgtm. we will take for consideration in 9 GA

[jeffschwMSFT]

@steveisok can you take a look at the PR failures?

[steveisok]

@steveisok can you take a look at the PR failures?

The builds no longer exist, so I'll have to kick it again.

[alhad-deshpande]

Hi @jeffschwMSFT @steveisok @lambdageek @akoeplinger

Added changes from PR #108429 which fixes assertion failure which was occurring while running System.Runtime.Serialization.Formatters.Tests tests. This was a very small change in description file. Hence thought to add in this PR instead of opening a new PR against .NET 9 release branch.

Can you please merge this PR now?

Cc: @leecow @uweigand @janani66

[steveisok]

Can you please merge this PR now?

Yeah, we'll merge after CI completes. I have no problem with the additional commit as it's ppc specific.

[alhad-deshpande]

Can you please merge this PR now?

Yeah, we'll merge after CI completes. I have no problem with the additional commit as it's ppc specific.

Thanks @steveisok.

[jeffschwMSFT]

@alhad-deshpande in the future, once things are approved any additional changes would cause us to go back through the approval process. in this case, it is OK just to have a new code review from @steveisok .

[alhad-deshpande]

@jeffschwMSFT
Thanks for considering a new change this time with a single review from @steveisok .