Jin Lin 7c2192b277 Add the use of register r for outlined function when register r is live in and defined later. ...

The compiler needs to mark register $x0 as live in for the following case.

    $x1 = ADDXri $sp, 16, 0
    BL @spam, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $x0, implicit killed $x1, implicit-def $sp, implicit-def dead $x0

Reviewed By: paquette

Differential Revision: https://reviews.llvm.org/D95267

2021-03-03 15:14:11 -08:00

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