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Fix arm64 build after llvm 18.1.3 upgrade

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Apparently clang 18 has become more strict about using floating point
registers in inline assembly when -mgeneral-regs-only is used. This
causes sys/arm64/arm64/vfp.c to fail to compile, with "error:
instruction requires: fp-armv8", and "error: expected readable system
register".

To fix it, similar to other files compiled for arm64, disable
-mgeneral-regs-only for this particular file.

PR:		276104
MFC after:	1 month

(cherry picked from commit f4d93b6761)
This commit is contained in:
Dimitry Andric 2024-04-07 02:07:38 +02:00
parent c9eafe9796
commit c7c33b213a
1 changed files with 2 additions and 1 deletions
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3
sys/conf/files.arm64
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@ -82,7 +82,8 @@ arm64/arm64/uma_machdep.c standard
arm64/arm64/undefined.c standard
arm64/arm64/unwind.c optional ddb | kdtrace_hooks | stack \
compile-with "${NORMAL_C:N-fsanitize*}"
arm64/arm64/vfp.c standard
arm64/arm64/vfp.c standard \
compile-with "${NORMAL_C:N-mgeneral-regs-only}"
arm64/arm64/vm_machdep.c standard
arm64/coresight/coresight.c standard