[Bug target/59833] ARM soft-float extendsfdf2 fails to quiet signaling NaN

[aurelien at aurel32 dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59833

--- Comment #5 from Aurelien Jarno <aurelien at aurel32 dot net> ---
(In reply to Ramana Radhakrishnan from comment #4)
> Need to apply Aurelien's patch - looks like that's slipped through the
> cracks.

What was missing to the patch was a testcase which compiles on all platform.
This has happened recently, as part of the testcase for PR61441. I therefore
guess this patch can now be applied.