[PATCH v1 11/28] bad-goto: catch labels with reserved names

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If a reserved name is used as the destination of a goto,
its associated label won't be valid and at linearization
time no BB will can be created for it, resulting in an
invalid IR.

So, catch such gotos at evaluation time and mark the
function to not be linearized.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
 evaluate.c                       | 2 ++
 validation/linear/goto-invalid.c | 1 -
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/evaluate.c b/evaluate.c
index c757fc82b204..21d5d761627f 100644
--- a/evaluate.c
+++ b/evaluate.c
@@ -3752,6 +3752,8 @@ static void evaluate_goto_statement(struct statement *stmt)
 		sparse_error(stmt->pos, "label '%s' was not declared", show_ident(label->ident));
 		current_fn->bogus_linear = 1;
 	}
+	if (label->namespace == NS_NONE)
+		current_fn->bogus_linear = 1;
 }
 
 struct symbol *evaluate_statement(struct statement *stmt)
diff --git a/validation/linear/goto-invalid.c b/validation/linear/goto-invalid.c
index 569d0b0d2db1..860b32a41ef9 100644
--- a/validation/linear/goto-invalid.c
+++ b/validation/linear/goto-invalid.c
@@ -11,7 +11,6 @@ void bar(void)
 /*
  * check-name: goto-invalid
  * check-command: test-linearize -Wno-decl $file
- * check-known-to-fail
  *
  * check-error-ignore
  * check-output-ignore
-- 
2.26.2




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