llvm-project

57fcde7d - [AArch64] Make width of stack protector guard value load configurable. (#195379)

[AArch64] Make width of stack protector guard value load configurable. (#195379) Certain embedded targets store the value of the stack protector global in an MMIO register, which requires a load of a specific width. Allow changing the backend to emit a 4-byte load for the value of the stack protector, instead of an 8-byte load. (Or vice versa for an ilp32 target.) The current version of the patch has a limitation: it still allocates a pointer-sized stack slot for the guard. This could be fixed in the future, if it becomes relevant.