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simplify: Avoid calling fixup_hierarchy_flags on nullptr

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Compiling on GCC hid this bug as it optimized the nullptr call away as
undefined behavior, but running the SBY tests with a clang build hits
this error.
This commit is contained in:
Jannis Harder 2023-09-29 12:28:50 +02:00
parent 20024900d9
commit cc843d414f
1 changed files with 1 additions and 1 deletions
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2
frontends/ast/simplify.cc
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@ -3042,8 +3042,8 @@ skip_dynamic_range_lvalue_expansion:;
assign_check = new AstNode(AST_ASSIGN_LE, new AstNode(AST_IDENTIFIER), new AstNode(AST_REDUCE_BOOL, children[0]->clone())); assign_check = new AstNode(AST_ASSIGN_LE, new AstNode(AST_IDENTIFIER), new AstNode(AST_REDUCE_BOOL, children[0]->clone()));
assign_check->children[0]->str = id_check; assign_check->children[0]->str = id_check;
assign_check->children[0]->was_checked = true; assign_check->children[0]->was_checked = true;
}
assign_check->fixup_hierarchy_flags(); assign_check->fixup_hierarchy_flags();
}
if (current_always == nullptr || current_always->type != AST_INITIAL) { if (current_always == nullptr || current_always->type != AST_INITIAL) {
assign_en = new AstNode(AST_ASSIGN_LE, new AstNode(AST_IDENTIFIER), mkconst_int(1, false, 1)); assign_en = new AstNode(AST_ASSIGN_LE, new AstNode(AST_IDENTIFIER), mkconst_int(1, false, 1));