Aarch64: Make FPIMM0 qualifiers consistent
Standardize the FPIMM0 operand qualifier to `QLF_NIL` for consistency across the opcode table.
This patch addresses an inconsistency in the opcode table where two entries used QLF_S_H for the FPIMM0 operand, while the rest used QLF_NIL. By changing these two entries to also use QLF_NIL, the patch promotes consistency within the table, simplifying maintenance and reducing the risk of unexpected behavior due to the inconsistent qualifier. This change is purely for internal consistency and has no functional impact.
In Details
The AArch64 opcode table (opcodes/aarch64-tbl.h) defines instruction formats. The FPIMM0 operand represents a floating-point immediate value of zero. This patch changes the qualifier used for FPIMM0 in two table entries from QLF_S_H to QLF_NIL to match other entries, improving internal consistency.
For Context
When an assembler translates a program, it relies on tables that describe the valid structure of each instruction. This patch fixes a small inconsistency in one of these tables, ensuring that a particular type of operand (a floating-point zero) is handled the same way across all instructions. This makes the assembler's internal code more consistent and easier to maintain.