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weird-codegen
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3 Commits

Author SHA1 Message Date
Mike Ash
c085682099 [Runtime] Fix warnings in CustomRRABI when building for ARM64_32. 
Pointers are 32 bits there, so we need to use the 'w' modifier on our register substitutions.
 2022-12-15 17:04:44 -05:00
Mike Ash
fefe33fd7d [Runtime] Add missing bridgeObjectRR_xN entrypoints. 
We're supposed to expose bridgeObjectRetain/Release_xN variants, but they were missing. This fixes the custom_rr_abi.swift test. Also remove the redundant extern "C" on the entrypoint definitions, which fixes some warnings.

rdar://102793667 rdar://102783074
 2022-11-30 10:50:14 -05:00
Mike Ash
b677b5676a [Runtime] Add register-specific entrypoints for retain/release calls on ARM64. 
This will allow emitted code to condense a sequence like:

    mov x0, x21
    bl swift_retain

To:

    bl swift_retain_x21

Saving code size.

rdar://98884198
 2022-11-15 09:53:49 -05:00