如何关闭GCC中「寄存器冲突」的不必要提示输出？

问题背景 #

我在N64游戏开发中使用汇编寄存器存储指针，该寄存器在不同线程中持有不同值且程序运行正常，但GCC输出大量如下冲突提示：

note: conflicts with 'gDisplayListHead' register Gfx *restrict gDisplayListHead asm("$fp");
note: conflicts with 'gCurrentObject' register struct Object *gCurrentObject asm("$fp");

已尝试查阅GCC文档寻找关闭标志，以及使用#pragma GCC system_header，但均无效。当前编译器标志如下：

WARNING_FLAGS:= -Werror=implicit-function-declaration -Wno-overflow
-Wno-stringop-overflow -Winline -Wno-implicit-function-declaration -Wno-pointer-compare -Wno-int-conversion -Wno-incompatible-pointer-types -Wduplicated-branches -Wsuggest-attribute=const -Wsuggest-attribute=noreturn -Wsuggest-attribute=format -Wsuggest-attribute=cold -Wsuggest-attribute=malloc -Wsuggest-attribute=pure -Wdouble-promotion -Wimplicit-int -Wno-shift-count-overflow -Wswitch-unreachable -Wunused-but-set-parameter -Wunused -Wunused-but-set-variable -Wunused-function -Wunused-parameter -Wno-unused-result -Wunused-variable -Wunused-const-variable=2 -Wunused-value -Wunknown-pragmas -Wno-aggressive-loop-optimizations -Wno-stringop-overread

OPT_FLAGS_SIZE:= $(WARNING_FLAGS) -Os -fsingle-precision-constant
--param max-completely-peeled-insns=4 -fno-unroll-loops -finline-functions-called-once -falign-functions=0 -fmerge-all-constants -fmodulo-sched -fmodulo-sched-allow-regmoves -fira-hoist-pressure -fipa-pta -floop-interchange -fsplit-paths -fallow-store-data-races -ffast-math -mframe-header-opt -nostdinc -I include/libc -DTARGET_N64 -D_LANGUAGE_C -mdivide-breaks
-mno-check-zero-division -march=vr4300 -mabi=eabi -mgp32 -mfp32 -mno-shared -mhard-float -fno-stack-protector -fno-common -mno-fix4300 -I include -I src/ -I $(BUILD_DIR)/include -fno-PIC -mno-abicalls -ffreestanding -fwrapv -mips3

无性能损耗的便捷解决方法 #

• 全局关闭警告：将-Wno-register添加到WARNING_FLAGS中。该标志专门关闭寄存器相关的警告，包括自定义寄存器变量的冲突提示，不会影响代码优化或运行性能。
• 局部范围抑制：如果不想全局关闭寄存器警告，可在定义冲突变量的代码块前后添加GCC警告抑制指令，仅在指定代码段内消除该警告：

  #pragma GCC diagnostic push
  #pragma GCC diagnostic ignored "-Wregister"
  register Gfx *restrict gDisplayListHead asm("$fp");
  register struct Object *gCurrentObject asm("$fp");
  #pragma GCC diagnostic pop
  

内容的提问来源于stack exchange，提问作者Kaze Emanuar