| 1 | // RUN: %clang_cc1 -E %s > %t.src.cpp |
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| 2 | // RUN: %clang_cc1 -E %s > %t.dst.cpp -DDEST |
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| 3 | // RUN: clang-diff -dump-matches -s=0 %t.src.cpp %t.dst.cpp -- | FileCheck %s |
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| 4 | // |
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| 5 | // Test the bottom-up matching, with maxsize set to 0, so that the optimal matching will never be applied. |
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| 6 | |
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| 7 | #ifndef DEST |
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| 8 | |
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| 9 | void f1() { ; {{;}} } |
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| 10 | void f2() { ;; {{;}} } |
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| 11 | |
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| 12 | #else |
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| 13 | |
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| 14 | // Jaccard similarity threshold is 0.5. |
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| 15 | |
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| 16 | void f1() { |
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| 17 | // CompoundStmt: 3 matched descendants, subtree sizes 4 and 5 |
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| 18 | // Jaccard similarity = 3 / (4 + 5 - 3) = 3 / 6 >= 0.5 |
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| 19 | // CHECK: Match FunctionDecl: f1(void ())(1) to FunctionDecl: f1(void ())(1) |
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| 20 | // CHECK: Match CompoundStmt(2) to CompoundStmt(2) |
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| 21 | // CHECK: Match CompoundStmt(4) to CompoundStmt(3) |
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| 22 | // CHECK: Match CompoundStmt(5) to CompoundStmt(4) |
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| 23 | // CHECK: Match NullStmt(6) to NullStmt(5) |
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| 24 | {{;}} ;; |
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| 25 | } |
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| 26 | |
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| 27 | void f2() { |
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| 28 | // CompoundStmt: 3 matched descendants, subtree sizes 4 and 5 |
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| 29 | // Jaccard similarity = 3 / (5 + 6 - 3) = 3 / 8 < 0.5 |
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| 30 | // CHECK-NOT: Match FunctionDecl(9) |
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| 31 | // CHECK-NOT: Match CompoundStmt(10) |
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| 32 | // CHECK: Match CompoundStmt(11) to CompoundStmt(10) |
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| 33 | // CHECK: Match CompoundStmt(12) to CompoundStmt(11) |
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| 34 | // CHECK: Match NullStmt(13) to NullStmt(12) |
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| 35 | // CHECK-NOT: Match NullStmt(13) |
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| 36 | {{;}} ;;; |
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| 37 | } |
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| 38 | |
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| 39 | #endif |
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| 40 | |
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