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32-bit ARM: Emit lr instead of r14 when specified as an asm! output register. #82141

Merged
merged 1 commit into from
Feb 16, 2021
Merged

32-bit ARM: Emit lr instead of r14 when specified as an asm! output register. #82141

merged 1 commit into from
Feb 16, 2021

Commits on Feb 15, 2021

  1. 32-bit ARM: Emit lr instead of r14 when specified as an asm! ou… 

    …tput register.

On 32-bit ARM platforms, the register `r14` has the alias `lr`. When used as an output register in `asm!`, rustc canonicalizes the name to `r14`. LLVM only knows the register by the name `lr`, and rejects it. This changes rustc's LLVM code generation to output `lr` instead.
    @jrvanwhy
    jrvanwhy committed Feb 15, 2021
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