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[X86][MC][NFC] Refine code in X86MCCodeEmitter.cpp about opcode prefix
authorShengchen Kan <shengchen.kan@intel.com>
Tue, 7 Feb 2023 08:04:05 +0000 (16:04 +0800)
committerShengchen Kan <shengchen.kan@intel.com>
Fri, 10 Feb 2023 03:11:21 +0000 (11:11 +0800)
commita22e8c9dadea290b4b2d675f60b27428e420b16f
tree2cf5cccd6e03485d78a2951a2f737d40beb86494tree | snapshot
parent32b3f13337ef0bf747705d058f4772c7fdabd736commit | diff
[X86][MC][NFC] Refine code in X86MCCodeEmitter.cpp about opcode prefix

1. Make code clearer by separating the logic of setting bits from the
   logic of how a prefix is encoded
2. Extract common code into functions to avoid code duplication
3. Return a enum rather a boolean to ehance scalability and uniform
   the behavior of functions

Reviewed By: pengfei, craig.topper

Differential Revision: https://reviews.llvm.org/D143471
llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp diff | blob | history
Domain: System / Toolchain;