clang/test/Analysis/ctu-onego-indirect.cpp

   1 // RUN: rm -rf %t && mkdir %t
   2 // RUN: mkdir -p %t/ctudir
   3 // RUN: %clang_cc1 -std=c++14 -triple x86_64-pc-linux-gnu \
   4 // RUN:   -emit-pch -o %t/ctudir/ctu-onego-indirect-other.cpp.ast %S/Inputs/ctu-onego-indirect-other.cpp
   5 // RUN: cp %S/Inputs/ctu-onego-indirect-other.cpp.externalDefMap.ast-dump.txt %t/ctudir/externalDefMap.txt
   6
   7 int bar();
   8
   9 // Here we have a foreign function `bar` that is imported when we analyze
  10 // `adirectbaruser`. During the subsequent toplevel analysis of `baruser` we
  11 // should bifurcate on the call of `bar`.
  12
  13 //Ensure the order of the toplevel analyzed functions.
  14 // RUN: %clang_analyze_cc1 -std=c++14 -triple x86_64-pc-linux-gnu \
  15 // RUN:   -analyzer-checker=core,debug.ExprInspection \
  16 // RUN:   -analyzer-config eagerly-assume=false \
  17 // RUN:   -analyzer-config experimental-enable-naive-ctu-analysis=true \
  18 // RUN:   -analyzer-config ctu-dir=%t/ctudir \
  19 // RUN:   -analyzer-display-progress \
  20 // RUN:   -analyzer-inlining-mode=all \
  21 // RUN:   -analyzer-config ctu-phase1-inlining=none \
  22 // RUN:   -analyzer-config ctu-max-nodes-pct=100 \
  23 // RUN:   -analyzer-config ctu-max-nodes-min=1000 2>&1 %s | FileCheck %s
  24 // CHECK: ANALYZE (Path,  Inline_Regular):{{.*}}adirectbaruser(int)
  25 // CHECK: ANALYZE (Path,  Inline_Regular):{{.*}}baruser(int)
  26
  27 // RUN: %clang_analyze_cc1 -std=c++14 -triple x86_64-pc-linux-gnu \
  28 // RUN:   -analyzer-checker=core,debug.ExprInspection \
  29 // RUN:   -analyzer-config eagerly-assume=false \
  30 // RUN:   -analyzer-config experimental-enable-naive-ctu-analysis=true \
  31 // RUN:   -analyzer-config ctu-dir=%t/ctudir \
  32 // RUN:   -analyzer-display-progress \
  33 // RUN:   -analyzer-inlining-mode=all \
  34 // RUN:   -analyzer-config ctu-phase1-inlining=none \
  35 // RUN:   -verify %s \
  36 // RUN:   -analyzer-config ctu-max-nodes-pct=100 \
  37 // RUN:   -analyzer-config ctu-max-nodes-min=1000
  38
  39
  40 void other(); // Defined in the other TU.
  41
  42 void clang_analyzer_eval(int);
  43
  44 void baruser(int x) {
  45   if (x == 1)
  46     return;
  47   int y = bar();
  48   clang_analyzer_eval(y == 0); // expected-warning{{TRUE}}
  49                                // expected-warning@-1{{UNKNOWN}}
  50   other();
  51 }
  52
  53 void adirectbaruser(int) {
  54   int y = bar();
  55   (void)y;
  56   baruser(1);
  57 }
  58