clang/test/Analysis/ctu-on-demand-parsing.cpp

   1 // RUN: rm -rf %t
   2 // RUN: mkdir -p %t/Inputs
   3 // RUN: cp %s %t/ctu-on-demand-parsing.cpp
   4 // RUN: cp %S/ctu-hdr.h %t/ctu-hdr.h
   5 // RUN: cp %S/Inputs/ctu-chain.cpp %t/Inputs/ctu-chain.cpp
   6 // RUN: cp %S/Inputs/ctu-other.cpp %t/Inputs/ctu-other.cpp
   7 //
   8 // Path substitutions on Windows platform could contain backslashes. These are escaped in the json file.
   9 // compile_commands.json is only needed for the extdef_mapping, not for the analysis itself.
  10 // RUN: echo '[{"directory":"%t/Inputs","command":"clang++ ctu-chain.cpp","file":"ctu-chain.cpp"},{"directory":"%t/Inputs","command":"clang++ ctu-other.cpp","file":"ctu-other.cpp"}]' | sed -e 's/\\/\\\\/g' > %t/compile_commands.json
  11 //
  12 // RUN: echo '{"%t/Inputs/ctu-chain.cpp": ["g++", "%t/Inputs/ctu-chain.cpp"], "%t/Inputs/ctu-other.cpp": ["g++", "%t/Inputs/ctu-other.cpp"]}' | sed -e 's/\\/\\\\/g' > %t/invocations.yaml
  13 //
  14 // RUN: cd "%t" && %clang_extdef_map Inputs/ctu-chain.cpp Inputs/ctu-other.cpp > externalDefMap.txt
  15 //
  16 // RUN: cd "%t" && %clang_analyze_cc1 \
  17 // RUN:   -analyzer-checker=core,debug.ExprInspection \
  18 // RUN:   -analyzer-config experimental-enable-naive-ctu-analysis=true \
  19 // RUN:   -analyzer-config ctu-dir=. \
  20 // RUN:   -analyzer-config ctu-invocation-list=invocations.yaml \
  21 // RUN:   -analyzer-config ctu-phase1-inlining=all \
  22 // RUN:   -verify ctu-on-demand-parsing.cpp
  23 // RUN: cd "%t" && %clang_analyze_cc1 \
  24 // RUN:   -analyzer-checker=core,debug.ExprInspection \
  25 // RUN:   -analyzer-config experimental-enable-naive-ctu-analysis=true \
  26 // RUN:   -analyzer-config ctu-dir=. \
  27 // RUN:   -analyzer-config ctu-invocation-list=invocations.yaml \
  28 // RUN:   -analyzer-config display-ctu-progress=true ctu-on-demand-parsing.cpp 2>&1 | FileCheck %t/ctu-on-demand-parsing.cpp
  29 //
  30 // CHECK: CTU loaded AST file: {{.*}}ctu-other.cpp
  31 // CHECK: CTU loaded AST file: {{.*}}ctu-chain.cpp
  32
  33 // FIXME: On-demand ctu should be tested in the same file that we have for the
  34 // PCH version, but with a different verify prefix (e.g. -verfiy=on-demand-ctu)
  35 //
  36 // FIXME: Path handling should work on all platforms.
  37 // REQUIRES: system-linux
  38
  39 #include "ctu-hdr.h"
  40
  41 void clang_analyzer_eval(int);
  42
  43 int f(int);
  44 int g(int);
  45 int h(int);
  46
  47 int callback_to_main(int x) { return x + 1; }
  48
  49 namespace myns {
  50 int fns(int x);
  51
  52 namespace embed_ns {
  53 int fens(int x);
  54 }
  55
  56 class embed_cls {
  57 public:
  58   int fecl(int x);
  59 };
  60 } // namespace myns
  61
  62 class mycls {
  63 public:
  64   int fcl(int x);
  65   virtual int fvcl(int x);
  66   static int fscl(int x);
  67
  68   class embed_cls2 {
  69   public:
  70     int fecl2(int x);
  71   };
  72 };
  73
  74 class derived : public mycls {
  75 public:
  76   virtual int fvcl(int x) override;
  77 };
  78
  79 namespace chns {
  80 int chf1(int x);
  81 }
  82
  83 int fun_using_anon_struct(int);
  84 int other_macro_diag(int);
  85
  86 void test_virtual_functions(mycls *obj) {
  87   // The dynamic type is known.
  88   clang_analyzer_eval(mycls().fvcl(1) == 8);   // expected-warning{{TRUE}}
  89   clang_analyzer_eval(derived().fvcl(1) == 9); // expected-warning{{TRUE}}
  90   // We cannot decide about the dynamic type.
  91   clang_analyzer_eval(obj->fvcl(1) == 8); // expected-warning{{FALSE}} expected-warning{{TRUE}}
  92   clang_analyzer_eval(obj->fvcl(1) == 9); // expected-warning{{FALSE}} expected-warning{{TRUE}}
  93 }
  94
  95 int main() {
  96   clang_analyzer_eval(f(3) == 2); // expected-warning{{TRUE}}
  97   clang_analyzer_eval(f(4) == 3); // expected-warning{{TRUE}}
  98   clang_analyzer_eval(f(5) == 3); // expected-warning{{FALSE}}
  99   clang_analyzer_eval(g(4) == 6); // expected-warning{{TRUE}}
 100   clang_analyzer_eval(h(2) == 8); // expected-warning{{TRUE}}
 101
 102   clang_analyzer_eval(myns::fns(2) == 9);                   // expected-warning{{TRUE}}
 103   clang_analyzer_eval(myns::embed_ns::fens(2) == -1);       // expected-warning{{TRUE}}
 104   clang_analyzer_eval(mycls().fcl(1) == 6);                 // expected-warning{{TRUE}}
 105   clang_analyzer_eval(mycls::fscl(1) == 7);                 // expected-warning{{TRUE}}
 106   clang_analyzer_eval(myns::embed_cls().fecl(1) == -6);     // expected-warning{{TRUE}}
 107   clang_analyzer_eval(mycls::embed_cls2().fecl2(0) == -11); // expected-warning{{TRUE}}
 108
 109   clang_analyzer_eval(chns::chf1(4) == 12);           // expected-warning{{TRUE}}
 110   clang_analyzer_eval(fun_using_anon_struct(8) == 8); // expected-warning{{TRUE}}
 111
 112   clang_analyzer_eval(other_macro_diag(1) == 1); // expected-warning{{TRUE}}
 113   // expected-warning@Inputs/ctu-other.cpp:93{{REACHABLE}}
 114   MACRODIAG(); // expected-warning{{REACHABLE}}
 115 }