diff options
| -rw-r--r-- | src/shader_recompiler/frontend/maxwell/structured_control_flow.cpp | 37 |
1 files changed, 21 insertions, 16 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/structured_control_flow.cpp b/src/shader_recompiler/frontend/maxwell/structured_control_flow.cpp index e63e25aa6..6021ac891 100644 --- a/src/shader_recompiler/frontend/maxwell/structured_control_flow.cpp +++ b/src/shader_recompiler/frontend/maxwell/structured_control_flow.cpp @@ -304,6 +304,23 @@ bool SearchNode(const Tree& tree, ConstNode stmt, size_t& offset) { return false; } +bool AreSiblings(Node goto_stmt, Node label_stmt) noexcept { + Node it{goto_stmt}; + do { + if (it == label_stmt) { + return true; + } + --it; + } while (it != goto_stmt->up->children.begin()); + while (it != goto_stmt->up->children.end()) { + if (it == label_stmt) { + return true; + } + ++it; + } + return false; +} + class GotoPass { public: explicit GotoPass(Flow::CFG& cfg, ObjectPool<IR::Inst>& inst_pool_, @@ -353,22 +370,10 @@ private: } } } - // TODO: Remove this - { - Node it{goto_stmt}; - bool sibling{false}; - do { - sibling |= it == label_stmt; - --it; - } while (it != goto_stmt->up->children.begin()); - while (it != goto_stmt->up->children.end()) { - sibling |= it == label_stmt; - ++it; - } - if (!sibling) { - throw LogicError("Not siblings"); - } - } + // Expensive operation: + // if (!AreSiblings(goto_stmt, label_stmt)) { + // throw LogicError("Goto is not a sibling with the label"); + // } // goto_stmt and label_stmt are guaranteed to be siblings, eliminate if (std::next(goto_stmt) == label_stmt) { // Simply eliminate the goto if the label is next to it |