b877efa6d4
This change replaces the __attribute__ syntax with the now standard [[]] syntax. It also reorganizes compiler.hh so that all special macros have some explanatory text saying what they do, and each attribute which has a standard version can use that if available and what version of c++ it's standard in is put in a comment. Also, the requirements as far as where you put [[]] style attributes are a little more strict than the old school __attribute__ style. The use of the attribute macros was updated to fit these new, more strict requirements. Change-Id: Iace44306a534111f1c38b9856dc9e88cd9b49d2a Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/35219 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com>