xref: /aosp_15_r20/external/clang/test/Analysis/traversal-path-unification.c (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.DumpTraversal %s | FileCheck %s
2*67e74705SXin Li // RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.DumpTraversal -DUSE_EXPR %s | FileCheck %s
3*67e74705SXin Li 
4*67e74705SXin Li int a();
5*67e74705SXin Li int b();
6*67e74705SXin Li int c();
7*67e74705SXin Li 
8*67e74705SXin Li #ifdef USE_EXPR
9*67e74705SXin Li #define CHECK(x) ((x) & 1)
10*67e74705SXin Li #else
11*67e74705SXin Li #define CHECK(x) (x)
12*67e74705SXin Li #endif
13*67e74705SXin Li 
14*67e74705SXin Li // CHECK: --BEGIN FUNCTION--
testRemoveDeadBindings()15*67e74705SXin Li void testRemoveDeadBindings() {
16*67e74705SXin Li   int i = a();
17*67e74705SXin Li   if (CHECK(i))
18*67e74705SXin Li     a();
19*67e74705SXin Li   else
20*67e74705SXin Li     b();
21*67e74705SXin Li 
22*67e74705SXin Li   // At this point the symbol bound to 'i' is dead.
23*67e74705SXin Li   // The effects of a() and b() are identical (they both invalidate globals).
24*67e74705SXin Li   // We should unify the two paths here and only get one end-of-path node.
25*67e74705SXin Li   c();
26*67e74705SXin Li }
27*67e74705SXin Li 
28*67e74705SXin Li // CHECK: --END FUNCTION--
29*67e74705SXin Li // CHECK-NOT: --END FUNCTION--
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