Address Spaces: Yeet address space on function prototypes

This is a property which solely belongs to pointers to functions,
not to the functions themselves. This cannot be properly represented by
stage 2 at the moment, as type with zigTypeTag() == .Fn is overloaded for
for function pointers and function prototypes.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/target.zig b/src/target.zig
index c9d7e1742b..09e65ff909 100644
--- a/src/target.zig
+++ b/src/target.zig
@@ -544,3 +544,21 @@ pub fn largestAtomicBits(target: std.Target) u32 {
         .x86_64 => 128,
     };
 }
+
+pub fn defaultAddressSpace(
+    target: std.Target,
+    context: enum {
+        /// Query the default address space for global constant values.
+        global_constant,
+        /// Query the default address space for global mutable values.
+        global_mutable,
+        /// Query the default address space for function-local values.
+        local,
+        /// Query the default address space for functions themselves.
+        function,
+    },
+) std.builtin.AddressSpace {
+    _ = target;
+    _ = context;
+    return .generic;
+}