From fc7a0c4878dac2d721ec18cafe1b6bcff7faa771 Mon Sep 17 00:00:00 2001
From: Alex Rønne Petersen <alex@alexrp.com>
Date: Sat, 15 Feb 2025 02:44:58 +0100
Subject: Sema: Fix fnptr alignment safety checks to account for potential ISA
 tag.

As seen on e.g. Arm/Thumb and MIPS (MIPS16/microMIPS).

Fixes #22888.
---
 src/Type.zig | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/Type.zig')

diff --git a/src/Type.zig b/src/Type.zig
index 7ddd43b034..883c752ef1 100644
--- a/src/Type.zig
+++ b/src/Type.zig
@@ -2541,6 +2541,13 @@ pub fn fnIsVarArgs(ty: Type, zcu: *const Zcu) bool {
     return zcu.intern_pool.indexToKey(ty.toIntern()).func_type.is_var_args;
 }
 
+pub fn fnPtrMaskOrNull(ty: Type, zcu: *const Zcu) ?u64 {
+    return switch (ty.zigTypeTag(zcu)) {
+        .@"fn" => target_util.functionPointerMask(zcu.getTarget()),
+        else => null,
+    };
+}
+
 pub fn isNumeric(ty: Type, zcu: *const Zcu) bool {
     return switch (ty.toIntern()) {
         .f16_type,
-- 
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