[Bug target/86209] Peephole does not happen because the type of zero/sign extended operands is not the same.

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86209

ktkachov at gcc dot gnu.org changed:

           What    |Removed                     |Added
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                 CC|                            |ktkachov at gcc dot gnu.org

--- Comment #4 from ktkachov at gcc dot gnu.org ---
I see this effect too.
Note that if you want to combine two LDRHs into an LDR you will be creating an
unaligned access in a lot of cases, so it may not always be profitable.

Also, I think the GIMPLE store merging pass can also merge loads these days.
Would be good to check why it doesn't handle this case.