zig

commit d208e59496a289c4a75ef417b025eb009ff2f66d (tree)
parent 6220c754cf3387aebbcba270789ec67e652398cb
Author: Jacob Young <jacobly0@users.noreply.github.com>
Date:   Fri, 14 Jun 2024 11:37:44 -0400

llvm: avoid debug info for naked function arguments

This is not supported by llvm.

Diffstat:
M
src/codegen/llvm.zig
 | 
5
++++-

1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig
@@ -1732,6 +1732,7 @@ pub const Object = struct {
             .liveness = liveness,
             .dg = &dg,
             .wip = wip,
+            .is_naked = fn_info.cc == .Naked,
             .ret_ptr = ret_ptr,
             .args = args.items,
             .arg_index = 0,
@@ -4801,6 +4802,7 @@ pub const FuncGen = struct {
     air: Air,
     liveness: Liveness,
     wip: Builder.WipFunction,
+    is_naked: bool,
 
     file: Builder.Metadata,
     scope: Builder.Metadata,
@@ -8846,7 +8848,8 @@ pub const FuncGen = struct {
         const arg_val = self.args[self.arg_index];
         self.arg_index += 1;
 
-        if (self.wip.strip) return arg_val;
+        // llvm does not support debug info for naked function arguments
+        if (self.wip.strip or self.is_naked) return arg_val;
 
         const inst_ty = self.typeOfIndex(inst);
         if (needDbgVarWorkaround(o)) return arg_val;