Source
pub fn cTypeBitSize(target: *const Target, c_type: CType) u16 {
switch (target.os.tag) {
.freestanding, .other => switch (target.cpu.arch) {
.msp430 => switch (c_type) {
.char => return 8,
.short, .ushort, .int, .uint => return 16,
.float, .long, .ulong => return 32,
.longlong, .ulonglong, .double, .longdouble => return 64,
},
.avr => switch (c_type) {
.char => return 8,
.short, .ushort, .int, .uint => return 16,
.long, .ulong, .float, .double, .longdouble => return 32,
.longlong, .ulonglong => return 64,
},
.mips64, .mips64el => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => switch (target.abi) {
.gnuabin32, .muslabin32 => return 32,
else => return 64,
},
.longlong, .ulonglong, .double => return 64,
.longdouble => return 128,
},
.x86_64 => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => switch (target.abi) {
.gnux32, .muslx32 => return 32,
else => return 64,
},
.longlong, .ulonglong, .double => return 64,
.longdouble => return 80,
},
else => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => return target.ptrBitWidth(),
.longlong, .ulonglong, .double => return 64,
.longdouble => switch (target.cpu.arch) {
.x86 => switch (target.abi) {
.android => return 64,
else => return 80,
},
.powerpc,
.powerpcle,
.powerpc64,
.powerpc64le,
=> switch (target.abi) {
.musl,
.muslabin32,
.muslabi64,
.musleabi,
.musleabihf,
.muslx32,
=> return 64,
else => return 128,
},
.riscv32,
.riscv32be,
.riscv64,
.riscv64be,
.aarch64,
.aarch64_be,
.s390x,
.sparc64,
.wasm32,
.wasm64,
.loongarch32,
.loongarch64,
.ve,
=> return 128,
else => return 64,
},
},
},
.fuchsia,
.hermit,
.aix,
.haiku,
.hurd,
.linux,
.plan9,
.rtems,
.serenity,
.zos,
.freebsd,
.dragonfly,
.netbsd,
.openbsd,
.illumos,
.solaris,
.wasi,
.emscripten,
=> switch (target.cpu.arch) {
.msp430 => switch (c_type) {
.char => return 8,
.short, .ushort, .int, .uint => return 16,
.long, .ulong, .float => return 32,
.longlong, .ulonglong, .double, .longdouble => return 64,
},
.avr => switch (c_type) {
.char => return 8,
.short, .ushort, .int, .uint => return 16,
.long, .ulong, .float, .double, .longdouble => return 32,
.longlong, .ulonglong => return 64,
},
.mips64, .mips64el => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => switch (target.abi) {
.gnuabin32, .muslabin32 => return 32,
else => return 64,
},
.longlong, .ulonglong, .double => return 64,
.longdouble => if (target.os.tag == .freebsd) return 64 else return 128,
},
.x86_64 => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => switch (target.abi) {
.gnux32, .muslx32 => return 32,
else => return 64,
},
.longlong, .ulonglong, .double => return 64,
.longdouble => return 80,
},
else => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => return target.ptrBitWidth(),
.longlong, .ulonglong, .double => return 64,
.longdouble => switch (target.cpu.arch) {
.x86 => switch (target.abi) {
.android => return 64,
else => return 80,
},
.powerpc,
.powerpcle,
=> switch (target.abi) {
.musl,
.muslabin32,
.muslabi64,
.musleabi,
.musleabihf,
.muslx32,
=> return 64,
else => switch (target.os.tag) {
.aix, .freebsd, .netbsd, .openbsd => return 64,
else => return 128,
},
},
.powerpc64,
.powerpc64le,
=> switch (target.abi) {
.musl,
.muslabin32,
.muslabi64,
.musleabi,
.musleabihf,
.muslx32,
=> return 64,
else => switch (target.os.tag) {
.aix, .freebsd, .openbsd => return 64,
else => return 128,
},
},
.riscv32,
.riscv32be,
.riscv64,
.riscv64be,
.aarch64,
.aarch64_be,
.s390x,
.mips64,
.mips64el,
.sparc64,
.wasm32,
.wasm64,
.loongarch32,
.loongarch64,
.ve,
=> return 128,
else => return 64,
},
},
},
.windows, .uefi => switch (target.cpu.arch) {
.x86 => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => return 32,
.longlong, .ulonglong, .double => return 64,
.longdouble => switch (target.abi) {
.gnu, .ilp32, .cygnus => return 80,
else => return 64,
},
},
.x86_64 => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => switch (target.abi) {
.cygnus => return 64,
else => return 32,
},
.longlong, .ulonglong, .double => return 64,
.longdouble => switch (target.abi) {
.gnu, .ilp32, .cygnus => return 80,
else => return 64,
},
},
else => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => return 32,
.longlong, .ulonglong, .double => return 64,
.longdouble => return 64,
},
},
.driverkit,
.ios,
.macos,
.tvos,
.visionos,
.watchos,
=> switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => switch (target.cpu.arch) {
.x86_64 => return 64,
else => switch (target.abi) {
.ilp32 => return 32,
else => return 64,
},
},
.longlong, .ulonglong, .double => return 64,
.longdouble => switch (target.cpu.arch) {
.x86_64 => return 80,
else => return 64,
},
},
.nvcl, .cuda => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => switch (target.cpu.arch) {
.nvptx => return 32,
.nvptx64 => return 64,
else => return 64,
},
.longlong, .ulonglong, .double => return 64,
.longdouble => return 64,
},
.amdhsa, .amdpal, .mesa3d => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong, .longlong, .ulonglong, .double => return 64,
.longdouble => return 128,
},
.opencl, .vulkan => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong, .double => return 64,
.longlong, .ulonglong => return 128,
// Note: The OpenCL specification does not guarantee a particular size for long double,
// but clang uses 128 bits.
.longdouble => return 128,
},
.@"3ds" => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float, .long, .ulong => return 32,
.longlong, .ulonglong, .double, .longdouble => return 64,
},
.ps4, .ps5 => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => return 64,
.longlong, .ulonglong, .double => return 64,
.longdouble => return 80,
},
.vita => switch (c_type) {
.char => return 8,
.short, .ushort => return 16,
.int, .uint, .float => return 32,
.long, .ulong => return 64,
.longlong, .ulonglong, .double, .longdouble => return 64,
},
.ps3,
.contiki,
.managarm,
.opengl,
=> @panic("specify the C integer and float type sizes for this OS"),
}
}