Commit 73f283e3e2

@@ -6387,14 +6387,18 @@ fn zirCall(
         }
         resolved_args[arg_index] = resolved;
     }
-    if (sema.owner_func == null or !sema.owner_func.?.calls_or_awaits_errorable_fn)
+    if (sema.owner_func == null or !sema.owner_func.?.calls_or_awaits_errorable_fn) {
         input_is_error = false; // input was an error type, but no errorable fn's were actually called
+    }
+
+    // AstGen ensures that a call instruction is always preceded by a dbg_stmt instruction.
+    const call_dbg_node = inst - 1;
 
     if (sema.mod.backendSupportsFeature(.error_return_trace) and sema.mod.comp.bin_file.options.error_return_tracing and
         !block.is_comptime and !block.is_typeof and (input_is_error or pop_error_return_trace))
     {
         const call_inst: Air.Inst.Ref = if (modifier == .always_tail) undefined else b: {
-            break :b try sema.analyzeCall(block, func, func_src, call_src, modifier, ensure_result_used, resolved_args, bound_arg_src);
+            break :b try sema.analyzeCall(block, func, func_src, call_src, modifier, ensure_result_used, resolved_args, bound_arg_src, call_dbg_node);
         };
 
         const return_ty = sema.typeOf(call_inst);
@@ -6423,11 +6427,11 @@ fn zirCall(
         }
 
         if (modifier == .always_tail) // Perform the call *after* the restore, so that a tail call is possible.
-            return sema.analyzeCall(block, func, func_src, call_src, modifier, ensure_result_used, resolved_args, bound_arg_src);
+            return sema.analyzeCall(block, func, func_src, call_src, modifier, ensure_result_used, resolved_args, bound_arg_src, call_dbg_node);
 
         return call_inst;
     } else {
-        return sema.analyzeCall(block, func, func_src, call_src, modifier, ensure_result_used, resolved_args, bound_arg_src);
+        return sema.analyzeCall(block, func, func_src, call_src, modifier, ensure_result_used, resolved_args, bound_arg_src, call_dbg_node);
     }
 }
 
@@ -6511,6 +6515,7 @@ fn analyzeCall(
     ensure_result_used: bool,
     uncasted_args: []const Air.Inst.Ref,
     bound_arg_src: ?LazySrcLoc,
+    call_dbg_node: ?Zir.Inst.Index,
 ) CompileError!Air.Inst.Ref {
     const mod = sema.mod;
 
@@ -6628,6 +6633,7 @@ fn analyzeCall(
             uncasted_args,
             call_tag,
             bound_arg_src,
+            call_dbg_node,
         )) |some| {
             return some;
         } else |err| switch (err) {
@@ -7016,6 +7022,8 @@ fn analyzeCall(
             }
         }
 
+        if (call_dbg_node) |some| try sema.zirDbgStmt(block, some);
+
         try sema.queueFullTypeResolution(func_ty_info.return_type);
         if (sema.owner_func != null and func_ty_info.return_type.isError()) {
             sema.owner_func.?.calls_or_awaits_errorable_fn = true;
@@ -7252,6 +7260,7 @@ fn instantiateGenericCall(
     uncasted_args: []const Air.Inst.Ref,
     call_tag: Air.Inst.Tag,
     bound_arg_src: ?LazySrcLoc,
+    call_dbg_node: ?Zir.Inst.Index,
 ) CompileError!Air.Inst.Ref {
     const mod = sema.mod;
     const gpa = sema.gpa;
@@ -7508,6 +7517,8 @@ fn instantiateGenericCall(
         try sema.queueFullTypeResolution(new_fn_info.return_type);
     }
 
+    if (call_dbg_node) |some| try sema.zirDbgStmt(block, some);
+
     if (sema.owner_func != null and new_fn_info.return_type.isError()) {
         sema.owner_func.?.calls_or_awaits_errorable_fn = true;
     }
@@ -11822,7 +11833,7 @@ fn maybeErrorUnwrap(sema: *Sema, block: *Block, body: []const Zir.Inst.Index, op
                 const panic_fn = try sema.getBuiltin("panicUnwrapError");
                 const err_return_trace = try sema.getErrorReturnTrace(block);
                 const args: [2]Air.Inst.Ref = .{ err_return_trace, operand };
-                _ = try sema.analyzeCall(block, panic_fn, src, src, .auto, false, &args, null);
+                _ = try sema.analyzeCall(block, panic_fn, src, src, .auto, false, &args, null, null);
                 return true;
             },
             .panic => {
@@ -11833,7 +11844,7 @@ fn maybeErrorUnwrap(sema: *Sema, block: *Block, body: []const Zir.Inst.Index, op
                 const panic_fn = try sema.getBuiltin("panic");
                 const err_return_trace = try sema.getErrorReturnTrace(block);
                 const args: [3]Air.Inst.Ref = .{ msg_inst, err_return_trace, .null_value };
-                _ = try sema.analyzeCall(block, panic_fn, src, src, .auto, false, &args, null);
+                _ = try sema.analyzeCall(block, panic_fn, src, src, .auto, false, &args, null, null);
                 return true;
             },
             else => unreachable,
@@ -17279,7 +17290,7 @@ fn retWithErrTracing(
     const args: [1]Air.Inst.Ref = .{err_return_trace};
 
     if (!need_check) {
-        _ = try sema.analyzeCall(block, return_err_fn, src, src, .never_inline, false, &args, null);
+        _ = try sema.analyzeCall(block, return_err_fn, src, src, .never_inline, false, &args, null, null);
         _ = try block.addUnOp(ret_tag, operand);
         return always_noreturn;
     }
@@ -17290,7 +17301,7 @@ fn retWithErrTracing(
 
     var else_block = block.makeSubBlock();
     defer else_block.instructions.deinit(gpa);
-    _ = try sema.analyzeCall(&else_block, return_err_fn, src, src, .never_inline, false, &args, null);
+    _ = try sema.analyzeCall(&else_block, return_err_fn, src, src, .never_inline, false, &args, null, null);
     _ = try else_block.addUnOp(ret_tag, operand);
 
     try sema.air_extra.ensureUnusedCapacity(gpa, @typeInfo(Air.CondBr).Struct.fields.len +
@@ -21647,7 +21658,7 @@ fn zirBuiltinCall(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError
         }
     }
     const ensure_result_used = extra.flags.ensure_result_used;
-    return sema.analyzeCall(block, func, func_src, call_src, modifier, ensure_result_used, resolved_args, bound_arg_src);
+    return sema.analyzeCall(block, func, func_src, call_src, modifier, ensure_result_used, resolved_args, bound_arg_src, null);
 }
 
 fn zirFieldParentPtr(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Air.Inst.Ref {
@@ -23481,7 +23492,7 @@ fn panicWithMsg(
         Value.null,
     );
     const args: [3]Air.Inst.Ref = .{ msg_inst, null_stack_trace, .null_value };
-    _ = try sema.analyzeCall(block, panic_fn, src, src, .auto, false, &args, null);
+    _ = try sema.analyzeCall(block, panic_fn, src, src, .auto, false, &args, null, null);
 }
 
 fn panicUnwrapError(
@@ -23519,7 +23530,7 @@ fn panicUnwrapError(
             const err = try fail_block.addTyOp(unwrap_err_tag, Type.anyerror, operand);
             const err_return_trace = try sema.getErrorReturnTrace(&fail_block);
             const args: [2]Air.Inst.Ref = .{ err_return_trace, err };
-            _ = try sema.analyzeCall(&fail_block, panic_fn, sema.src, sema.src, .auto, false, &args, null);
+            _ = try sema.analyzeCall(&fail_block, panic_fn, sema.src, sema.src, .auto, false, &args, null, null);
         }
     }
     try sema.addSafetyCheckExtra(parent_block, ok, &fail_block);
@@ -23604,7 +23615,7 @@ fn panicSentinelMismatch(
     else {
         const panic_fn = try sema.getBuiltin("checkNonScalarSentinel");
         const args: [2]Air.Inst.Ref = .{ expected_sentinel, actual_sentinel };
-        _ = try sema.analyzeCall(parent_block, panic_fn, sema.src, sema.src, .auto, false, &args, null);
+        _ = try sema.analyzeCall(parent_block, panic_fn, sema.src, sema.src, .auto, false, &args, null, null);
         return;
     };
 
@@ -23641,7 +23652,7 @@ fn safetyCheckFormatted(
         _ = try fail_block.addNoOp(.trap);
     } else {
         const panic_fn = try sema.getBuiltin(func);
-        _ = try sema.analyzeCall(&fail_block, panic_fn, sema.src, sema.src, .auto, false, args, null);
+        _ = try sema.analyzeCall(&fail_block, panic_fn, sema.src, sema.src, .auto, false, args, null, null);
     }
     try sema.addSafetyCheckExtra(parent_block, ok, &fail_block);
 }