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llvm: Don't emit extra debug instructions for dbg_var_val in naked functions.

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Alex Rønne Petersen 2024-08-13 05:26:30 +02:00
parent acad2fae44
commit 7a8e86e46c
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1 changed files with 4 additions and 1 deletions
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5
src/codegen/llvm.zig
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@ -6743,7 +6743,10 @@ pub const FuncGen = struct {
},
"",
);
} else if (owner_mod.optimize_mode == .Debug) {
} else if (owner_mod.optimize_mode == .Debug and !self.is_naked) {
// We avoid taking this path for naked functions because there's no guarantee that such
// functions even have a valid stack pointer, making the `alloca` + `store` unsafe.
const alignment = operand_ty.abiAlignment(pt).toLlvm();
const alloca = try self.buildAlloca(operand.typeOfWip(&self.wip), alignment);
_ = try self.wip.store(.normal, operand, alloca, alignment);