forked from OSchip/llvm-project
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
// RUN: %clang_cc1 -E %s > %t.src.cpp
|
|
// RUN: %clang_cc1 -E %s > %t.dst.cpp -DDEST
|
|
// RUN: clang-diff -dump-matches -s=0 %t.src.cpp %t.dst.cpp -- | FileCheck %s
|
|
//
|
|
// Test the bottom-up matching, with maxsize set to 0, so that the optimal matching will never be applied.
|
|
|
|
#ifndef DEST
|
|
|
|
void f1() { ; {{;}} }
|
|
void f2() { ;; {{;}} }
|
|
|
|
#else
|
|
|
|
// Jaccard similarity threshold is 0.5.
|
|
|
|
void f1() {
|
|
// CompoundStmt: 3 matched descendants, subtree sizes 4 and 5
|
|
// Jaccard similarity = 3 / (4 + 5 - 3) = 3 / 6 >= 0.5
|
|
// CHECK: Match FunctionDecl: f1(void ())(1) to FunctionDecl: f1(void ())(1)
|
|
// CHECK: Match CompoundStmt(2) to CompoundStmt(2)
|
|
// CHECK: Match CompoundStmt(4) to CompoundStmt(3)
|
|
// CHECK: Match CompoundStmt(5) to CompoundStmt(4)
|
|
// CHECK: Match NullStmt(6) to NullStmt(5)
|
|
{{;}} ;;
|
|
}
|
|
|
|
void f2() {
|
|
// CompoundStmt: 3 matched descendants, subtree sizes 4 and 5
|
|
// Jaccard similarity = 3 / (5 + 6 - 3) = 3 / 8 < 0.5
|
|
// CHECK-NOT: Match FunctionDecl(9)
|
|
// CHECK-NOT: Match CompoundStmt(10)
|
|
// CHECK: Match CompoundStmt(11) to CompoundStmt(10)
|
|
// CHECK: Match CompoundStmt(12) to CompoundStmt(11)
|
|
// CHECK: Match NullStmt(13) to NullStmt(12)
|
|
// CHECK-NOT: Match NullStmt(13)
|
|
{{;}} ;;;
|
|
}
|
|
|
|
#endif
|