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906e8ce469
The GNU assembler extends the generic notation for IMPLEMENTATION DEFINED system registers to support any system register, so that system registers defined by newer versions of the architecture can still be used by older versions of the toolchain. Clang before v3.6 supports the generic notation, but does not support this extension, nor does it need to in the particular case of the GICv3 support code, since it knows the GICv3 registers by their architectural names. So only redefine their real names to their generic aliases if we are not using clang. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> Tested-by: Leif Lindholm <leif.lindholm@linaro.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18192 6f19259b-4bc3-4df7-8a09-765794883524