From e11ac026623f8d0f4895cddd6a9bf3c03a866c6d Mon Sep 17 00:00:00 2001
From: Alex Rønne Petersen <alex@alexrp.com>
Date: Thu, 5 Dec 2024 15:24:25 +0100
Subject: cbe: Implement support for -fno-builtin and @disableIntrinsics().

---
 src/codegen/c.zig | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

(limited to 'src/codegen/c.zig')

diff --git a/src/codegen/c.zig b/src/codegen/c.zig
index 5012f7e0e8..cd4573375d 100644
--- a/src/codegen/c.zig
+++ b/src/codegen/c.zig
@@ -1859,8 +1859,17 @@ pub const DeclGen = struct {
                 else => unreachable,
             }
         }
-        if (fn_val.getFunction(zcu)) |func| if (func.analysisUnordered(ip).branch_hint == .cold)
-            try w.writeAll("zig_cold ");
+
+        if (fn_val.getFunction(zcu)) |func| {
+            const func_analysis = func.analysisUnordered(ip);
+
+            if (func_analysis.branch_hint == .cold)
+                try w.writeAll("zig_cold ");
+
+            if (kind == .complete and func_analysis.disable_intrinsics or dg.mod.no_builtin)
+                try w.writeAll("zig_no_builtin ");
+        }
+
         if (fn_info.return_type == .noreturn_type) try w.writeAll("zig_noreturn ");
 
         var trailing = try renderTypePrefix(dg.pass, &dg.ctype_pool, zcu, w, fn_ctype, .suffix, .{});
-- 
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