Source
pub fn stackAlignment(target: Target) u16 {
// Overrides for when the stack alignment is not equal to the pointer width.
switch (target.cpu.arch) {
.m68k,
=> return 2,
.amdgcn,
=> return 4,
.arm,
.armeb,
.thumb,
.thumbeb,
.lanai,
.mips,
.mipsel,
.sparc,
=> return 8,
.aarch64,
.aarch64_be,
.bpfeb,
.bpfel,
.loongarch32,
.loongarch64,
.mips64,
.mips64el,
.sparc64,
.ve,
.wasm32,
.wasm64,
=> return 16,
// Some of the following prongs should really be testing the ABI, but our current `Abi` enum
// can't handle that level of nuance yet.
.powerpc64,
.powerpc64le,
=> if (target.os.tag == .linux or target.os.tag == .aix) return 16,
.riscv32,
.riscv64,
=> if (!Target.riscv.featureSetHas(target.cpu.features, .e)) return 16,
.x86 => if (target.os.tag != .windows and target.os.tag != .uefi) return 16,
.x86_64 => return if (target.os.tag == .elfiamcu) 4 else 16,
else => {},
}
return @divExact(target.ptrBitWidth(), 8);
}