Uros Bizjak 3014dec3ad x86: Remove obsolete "*&" GCC asm memory operand workaround ...

GCC now accept plain variable names as valid lvalues for "m"
constraints, automatically spilling locals to memory if necessary.
The long-standing "*&" pattern was originally used as a defensive
workaround for older compiler versions that rejected operands
such as:

     asm ("incl %0" : "+m"(x));

with errors like "memory input is not directly addressable".

Modern compilers (GCC >= 9) reliably generate correct code
without the workaround, and the resulting assembly is identical.

No functional changes intended.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Reviewed-by: Florian Weimer <fweimer@redhat.com>
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>

2025-09-22 17:33:25 +02:00

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