https://sourceware.org/bugzilla/show_bug.cgi?id=31323
Bug ID: 31323
Summary: [x86] GAS does not error out instruction that exceed
16 bytes
Product: binutils
Version: 2.43 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: wwwhhhyyy333 at gmail dot com
Target Milestone: ---
With APX NDD add, the instruction length would exceed 16byte when segment
prefix was used, e.g.
addq $0xe0, %fs:0, %rdx
Assembler only throws warning for such instruction unless manually turned on
--fatal-warnings. For general use it is better to error out such illegal
instruction by default, otherwise we only know it until runtime.
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