[Bug rtl-optimization/101426] Wrong code redirecting IPA thunk parms to tail-call

[krebbel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101426

--- Comment #1 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
Created attachment 51136
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51136&action=edit
Experimental Fix

With this patch the address is copied to a pseudo first. That way the register
allocator will sort out the dependencies resulting in the following code being
generated:

        lgr     %r2,%r3
        lgr     %r3,%r4
        lgr     %r4,%r5
        jg     
_ZN1r6NSPACE6AShrOp5buildERNS_9OpBuilderERNS_14OperationStateENS_10ValueRangeEN6nspace8ArrayRefISt4pairINS_10IdentifierENS_9AttributeEEEE.constprop.0