H. Peter Anvin 8dae3d681d insns.dat: fix broken XCHG pattern (BR 3392951) ...

A pattern for XCHG was incompletely macroized. This caused a
fallthrough to the next pattern, reversing the operands, but would
probably have had generated incorrect code in at least some cases.

Beef up the xchg test.

Reported-by: E. C. Masloch <pushbx@ulukai.org>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>

2025-09-19 12:56:19 -07:00

1.6 KiB

Raw History

View Raw