[Bug target/88734] [8/9 Regression] AArch64's ACLE intrinsics give an ICE instead of compile error when option mismatch.

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88734

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Actually, with -Wsystem-headers we do warn about that:
include/arm_neon.h:33073:9: warning: ‘#pragma GCC option’ is not a string
[-Wpragmas]
33073 | #pragma GCC target(("arch=armv8.2-a+sm4"))
      |         ^~~
include/arm_neon.h:33140:9: warning: ‘#pragma GCC option’ is not a string
[-Wpragmas]
33140 | #pragma GCC target(("arch=armv8.2-a+crypto"))
      |         ^~~
include/arm_neon.h:33302:9: warning: ‘#pragma GCC option’ is not a string
[-Wpragmas]
33302 | #pragma GCC target(("arch=armv8.3-a"))
      |         ^~~
include/arm_neon.h:33305:9: warning: ‘#pragma GCC option’ is not a string
[-Wpragmas]
33305 | #pragma GCC target(("+fp16"))
      |         ^~~
include/arm_neon.h:33776:9: warning: ‘#pragma GCC option’ is not a string
[-Wpragmas]
33776 | #pragma GCC target(("arch=armv8.2-a+fp16fml"))
      |         ^~~
So it is just that nobody tried -Wsystem-headers with the arm and aarch64
intrinsic headers.