Fix regression where "looping back to the head of" PathDiagnosticEvents

were not emitted.

Fixes <rdar://problem/12280665>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163683 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/StaticAnalyzer/Core/BugReporter.cpp b/lib/StaticAnalyzer/Core/BugReporter.cpp
index 80ece9a3b0ad923fddd433d356e072b18e454617..46acea78a8e430982ae2879dd52cccd2c26d5edf 100644 (file)
--- a/lib/StaticAnalyzer/Core/BugReporter.cpp
+++ b/lib/StaticAnalyzer/Core/BugReporter.cpp
@@ -1248,20 +1248,15 @@ static void GenerateExtensivePathDiagnostic(PathDiagnostic& PD,
           }
         }
        
-        const CFGBlock &Blk = *BE->getSrc();
-        const Stmt *Term = Blk.getTerminator();
-
         // Are we jumping to the head of a loop?  Add a special diagnostic.
-        if (const Stmt *Loop = BE->getDst()->getLoopTarget()) {
+        if (const Stmt *Loop = BE->getSrc()->getLoopTarget()) {
           PathDiagnosticLocation L(Loop, SM, PDB.LC);
           const CompoundStmt *CS = NULL;
 
-          if (!Term) {
-            if (const ForStmt *FS = dyn_cast<ForStmt>(Loop))
-              CS = dyn_cast<CompoundStmt>(FS->getBody());
-            else if (const WhileStmt *WS = dyn_cast<WhileStmt>(Loop))
-              CS = dyn_cast<CompoundStmt>(WS->getBody());
-          }
+          if (const ForStmt *FS = dyn_cast<ForStmt>(Loop))
+            CS = dyn_cast<CompoundStmt>(FS->getBody());
+          else if (const WhileStmt *WS = dyn_cast<WhileStmt>(Loop))
+            CS = dyn_cast<CompoundStmt>(WS->getBody());
 
           PathDiagnosticEventPiece *p =
             new PathDiagnosticEventPiece(L,
@@ -1277,8 +1272,8 @@ static void GenerateExtensivePathDiagnostic(PathDiagnostic& PD,
             EB.addEdge(BL);
           }
         }
-
-        if (Term)
+        
+        if (const Stmt *Term = BE->getSrc()->getTerminator())
           EB.addContext(Term);
 
         break;

diff --git a/test/Analysis/plist-output.m b/test/Analysis/plist-output.m
index 07cf7bf6edfca6b03d4f4f16a22f4b3cca099259..74923acca79a8befd75085e9c7c8da4185a74345 100644 (file)
--- a/test/Analysis/plist-output.m
+++ b/test/Analysis/plist-output.m
@@ -79,6 +79,16 @@ int test_cond_assign() {
 }
 @end
 
+// Test that loops are documented in the path.
+void rdar12280665() {
+  for (unsigned i = 0; i < 2; ++i) {
+         if (i == 1) {
+                 int *p = 0;
+                 *p = 0xDEADBEEF; // expected-warning {{dereference}}
+         }
+  }
+}
+
 // CHECK:  <key>diagnostics</key>
 // CHECK-NEXT:  <array>
 // CHECK-NEXT:   <dict>
@@ -111,7 +121,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Variable &apos;p&apos; initialized to a null pointer value</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Variable &apos;p&apos; initialized to a null pointer value</string>
+// CHECK-NEXT:      <string>Variable &apos;p&apos; initialized to a null pointer value</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>control</string>
@@ -174,7 +184,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
+// CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:    </array>
 // CHECK-NEXT:    <key>description</key><string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
@@ -254,7 +264,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Null pointer value stored to &apos;p&apos;</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Null pointer value stored to &apos;p&apos;</string>
+// CHECK-NEXT:      <string>Null pointer value stored to &apos;p&apos;</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>control</string>
@@ -317,7 +327,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
+// CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:    </array>
 // CHECK-NEXT:    <key>description</key><string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
@@ -397,7 +407,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Variable &apos;q&apos; initialized to a null pointer value</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Variable &apos;q&apos; initialized to a null pointer value</string>
+// CHECK-NEXT:      <string>Variable &apos;q&apos; initialized to a null pointer value</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>control</string>
@@ -460,7 +470,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;q&apos;)</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Dereference of null pointer (loaded from variable &apos;q&apos;)</string>
+// CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;q&apos;)</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:    </array>
 // CHECK-NEXT:    <key>description</key><string>Dereference of null pointer (loaded from variable &apos;q&apos;)</string>
@@ -540,7 +550,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Assuming &apos;p&apos; is null</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Assuming &apos;p&apos; is null</string>
+// CHECK-NEXT:      <string>Assuming &apos;p&apos; is null</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>event</string>
@@ -569,7 +579,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Assuming pointer value is null</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Assuming pointer value is null</string>
+// CHECK-NEXT:      <string>Assuming pointer value is null</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>control</string>
@@ -632,7 +642,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
+// CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:    </array>
 // CHECK-NEXT:    <key>description</key><string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
@@ -712,7 +722,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Assuming &apos;q&apos; is null</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Assuming &apos;q&apos; is null</string>
+// CHECK-NEXT:      <string>Assuming &apos;q&apos; is null</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>control</string>
@@ -775,7 +785,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Variable &apos;p&apos; initialized to a null pointer value</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Variable &apos;p&apos; initialized to a null pointer value</string>
+// CHECK-NEXT:      <string>Variable &apos;p&apos; initialized to a null pointer value</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>control</string>
@@ -838,7 +848,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
+// CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:    </array>
 // CHECK-NEXT:    <key>description</key><string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
@@ -952,7 +962,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Dereference of null pointer (loaded from field &apos;p&apos;)</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Dereference of null pointer (loaded from field &apos;p&apos;)</string>
+// CHECK-NEXT:      <string>Dereference of null pointer (loaded from field &apos;p&apos;)</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:    </array>
 // CHECK-NEXT:    <key>description</key><string>Dereference of null pointer (loaded from field &apos;p&apos;)</string>
@@ -1032,7 +1042,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Assuming &apos;a&apos; is not equal to 0</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Assuming &apos;a&apos; is not equal to 0</string>
+// CHECK-NEXT:      <string>Assuming &apos;a&apos; is not equal to 0</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>control</string>
@@ -1129,7 +1139,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Assuming &apos;b&apos; is equal to 0</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Assuming &apos;b&apos; is equal to 0</string>
+// CHECK-NEXT:      <string>Assuming &apos;b&apos; is equal to 0</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>control</string>
@@ -1192,7 +1202,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Variable &apos;p&apos; initialized to a null pointer value</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Variable &apos;p&apos; initialized to a null pointer value</string>
+// CHECK-NEXT:      <string>Variable &apos;p&apos; initialized to a null pointer value</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>control</string>
@@ -1255,7 +1265,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
+// CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:    </array>
 // CHECK-NEXT:    <key>description</key><string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
@@ -1369,7 +1379,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Value assigned to &apos;p&apos;</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Value assigned to &apos;p&apos;</string>
+// CHECK-NEXT:      <string>Value assigned to &apos;p&apos;</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>event</string>
@@ -1398,7 +1408,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Assuming &apos;p&apos; is null</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Assuming &apos;p&apos; is null</string>
+// CHECK-NEXT:      <string>Assuming &apos;p&apos; is null</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>event</string>
@@ -1427,7 +1437,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Assuming pointer value is null</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Assuming pointer value is null</string>
+// CHECK-NEXT:      <string>Assuming pointer value is null</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>control</string>
@@ -1524,7 +1534,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
+// CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:    </array>
 // CHECK-NEXT:    <key>description</key><string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
@@ -1604,7 +1614,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Variable &apos;p&apos; initialized to a null pointer value</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Variable &apos;p&apos; initialized to a null pointer value</string>
+// CHECK-NEXT:      <string>Variable &apos;p&apos; initialized to a null pointer value</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:     <dict>
 // CHECK-NEXT:      <key>kind</key><string>control</string>
@@ -1667,7 +1677,7 @@ int test_cond_assign() {
 // CHECK-NEXT:      <key>extended_message</key>
 // CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:      <key>message</key>
-// CHECK-NEXT: <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
+// CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
 // CHECK-NEXT:     </dict>
 // CHECK-NEXT:    </array>
 // CHECK-NEXT:    <key>description</key><string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
@@ -1683,4 +1693,312 @@ int test_cond_assign() {
 // CHECK-NEXT:    <key>file</key><integer>0</integer>
 // CHECK-NEXT:   </dict>
 // CHECK-NEXT:   </dict>
+// CHECK-NEXT:   <dict>
+// CHECK-NEXT:    <key>path</key>
+// CHECK-NEXT:    <array>
+// CHECK-NEXT:     <dict>
+// CHECK-NEXT:      <key>kind</key><string>control</string>
+// CHECK-NEXT:      <key>edges</key>
+// CHECK-NEXT:       <array>
+// CHECK-NEXT:        <dict>
+// CHECK-NEXT:         <key>start</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>84</integer>
+// CHECK-NEXT:            <key>col</key><integer>3</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>84</integer>
+// CHECK-NEXT:            <key>col</key><integer>5</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:         <key>end</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>85</integer>
+// CHECK-NEXT:            <key>col</key><integer>4</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>85</integer>
+// CHECK-NEXT:            <key>col</key><integer>5</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:        </dict>
+// CHECK-NEXT:       </array>
+// CHECK-NEXT:     </dict>
+// CHECK-NEXT:     <dict>
+// CHECK-NEXT:      <key>kind</key><string>control</string>
+// CHECK-NEXT:      <key>edges</key>
+// CHECK-NEXT:       <array>
+// CHECK-NEXT:        <dict>
+// CHECK-NEXT:         <key>start</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>85</integer>
+// CHECK-NEXT:            <key>col</key><integer>4</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>85</integer>
+// CHECK-NEXT:            <key>col</key><integer>5</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:         <key>end</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>89</integer>
+// CHECK-NEXT:            <key>col</key><integer>3</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>89</integer>
+// CHECK-NEXT:            <key>col</key><integer>3</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:        </dict>
+// CHECK-NEXT:       </array>
+// CHECK-NEXT:     </dict>
+// CHECK-NEXT:     <dict>
+// CHECK-NEXT:      <key>kind</key><string>control</string>
+// CHECK-NEXT:      <key>edges</key>
+// CHECK-NEXT:       <array>
+// CHECK-NEXT:        <dict>
+// CHECK-NEXT:         <key>start</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>89</integer>
+// CHECK-NEXT:            <key>col</key><integer>3</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>89</integer>
+// CHECK-NEXT:            <key>col</key><integer>3</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:         <key>end</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>84</integer>
+// CHECK-NEXT:            <key>col</key><integer>3</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>84</integer>
+// CHECK-NEXT:            <key>col</key><integer>5</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:        </dict>
+// CHECK-NEXT:       </array>
+// CHECK-NEXT:     </dict>
+// CHECK-NEXT:     <dict>
+// CHECK-NEXT:      <key>kind</key><string>event</string>
+// CHECK-NEXT:      <key>location</key>
+// CHECK-NEXT:      <dict>
+// CHECK-NEXT:       <key>line</key><integer>84</integer>
+// CHECK-NEXT:       <key>col</key><integer>3</integer>
+// CHECK-NEXT:       <key>file</key><integer>0</integer>
+// CHECK-NEXT:      </dict>
+// CHECK-NEXT:      <key>ranges</key>
+// CHECK-NEXT:      <array>
+// CHECK-NEXT:        <array>
+// CHECK-NEXT:         <dict>
+// CHECK-NEXT:          <key>line</key><integer>84</integer>
+// CHECK-NEXT:          <key>col</key><integer>3</integer>
+// CHECK-NEXT:          <key>file</key><integer>0</integer>
+// CHECK-NEXT:         </dict>
+// CHECK-NEXT:         <dict>
+// CHECK-NEXT:          <key>line</key><integer>84</integer>
+// CHECK-NEXT:          <key>col</key><integer>5</integer>
+// CHECK-NEXT:          <key>file</key><integer>0</integer>
+// CHECK-NEXT:         </dict>
+// CHECK-NEXT:        </array>
+// CHECK-NEXT:      </array>
+// CHECK-NEXT:      <key>depth</key><integer>0</integer>
+// CHECK-NEXT:      <key>extended_message</key>
+// CHECK-NEXT:      <string>Looping back to the head of the loop</string>
+// CHECK-NEXT:      <key>message</key>
+// CHECK-NEXT:      <string>Looping back to the head of the loop</string>
+// CHECK-NEXT:     </dict>
+// CHECK-NEXT:     <dict>
+// CHECK-NEXT:      <key>kind</key><string>control</string>
+// CHECK-NEXT:      <key>edges</key>
+// CHECK-NEXT:       <array>
+// CHECK-NEXT:        <dict>
+// CHECK-NEXT:         <key>start</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>84</integer>
+// CHECK-NEXT:            <key>col</key><integer>3</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>84</integer>
+// CHECK-NEXT:            <key>col</key><integer>5</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:         <key>end</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>85</integer>
+// CHECK-NEXT:            <key>col</key><integer>4</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>85</integer>
+// CHECK-NEXT:            <key>col</key><integer>5</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:        </dict>
+// CHECK-NEXT:       </array>
+// CHECK-NEXT:     </dict>
+// CHECK-NEXT:     <dict>
+// CHECK-NEXT:      <key>kind</key><string>control</string>
+// CHECK-NEXT:      <key>edges</key>
+// CHECK-NEXT:       <array>
+// CHECK-NEXT:        <dict>
+// CHECK-NEXT:         <key>start</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>85</integer>
+// CHECK-NEXT:            <key>col</key><integer>4</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>85</integer>
+// CHECK-NEXT:            <key>col</key><integer>5</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:         <key>end</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>86</integer>
+// CHECK-NEXT:            <key>col</key><integer>5</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>86</integer>
+// CHECK-NEXT:            <key>col</key><integer>7</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:        </dict>
+// CHECK-NEXT:       </array>
+// CHECK-NEXT:     </dict>
+// CHECK-NEXT:     <dict>
+// CHECK-NEXT:      <key>kind</key><string>event</string>
+// CHECK-NEXT:      <key>location</key>
+// CHECK-NEXT:      <dict>
+// CHECK-NEXT:       <key>line</key><integer>86</integer>
+// CHECK-NEXT:       <key>col</key><integer>5</integer>
+// CHECK-NEXT:       <key>file</key><integer>0</integer>
+// CHECK-NEXT:      </dict>
+// CHECK-NEXT:      <key>ranges</key>
+// CHECK-NEXT:      <array>
+// CHECK-NEXT:        <array>
+// CHECK-NEXT:         <dict>
+// CHECK-NEXT:          <key>line</key><integer>86</integer>
+// CHECK-NEXT:          <key>col</key><integer>5</integer>
+// CHECK-NEXT:          <key>file</key><integer>0</integer>
+// CHECK-NEXT:         </dict>
+// CHECK-NEXT:         <dict>
+// CHECK-NEXT:          <key>line</key><integer>86</integer>
+// CHECK-NEXT:          <key>col</key><integer>10</integer>
+// CHECK-NEXT:          <key>file</key><integer>0</integer>
+// CHECK-NEXT:         </dict>
+// CHECK-NEXT:        </array>
+// CHECK-NEXT:      </array>
+// CHECK-NEXT:      <key>depth</key><integer>0</integer>
+// CHECK-NEXT:      <key>extended_message</key>
+// CHECK-NEXT:      <string>Variable &apos;p&apos; initialized to a null pointer value</string>
+// CHECK-NEXT:      <key>message</key>
+// CHECK-NEXT:      <string>Variable &apos;p&apos; initialized to a null pointer value</string>
+// CHECK-NEXT:     </dict>
+// CHECK-NEXT:     <dict>
+// CHECK-NEXT:      <key>kind</key><string>control</string>
+// CHECK-NEXT:      <key>edges</key>
+// CHECK-NEXT:       <array>
+// CHECK-NEXT:        <dict>
+// CHECK-NEXT:         <key>start</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>86</integer>
+// CHECK-NEXT:            <key>col</key><integer>5</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>86</integer>
+// CHECK-NEXT:            <key>col</key><integer>7</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:         <key>end</key>
+// CHECK-NEXT:          <array>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>87</integer>
+// CHECK-NEXT:            <key>col</key><integer>5</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:           <dict>
+// CHECK-NEXT:            <key>line</key><integer>87</integer>
+// CHECK-NEXT:            <key>col</key><integer>5</integer>
+// CHECK-NEXT:            <key>file</key><integer>0</integer>
+// CHECK-NEXT:           </dict>
+// CHECK-NEXT:          </array>
+// CHECK-NEXT:        </dict>
+// CHECK-NEXT:       </array>
+// CHECK-NEXT:     </dict>
+// CHECK-NEXT:     <dict>
+// CHECK-NEXT:      <key>kind</key><string>event</string>
+// CHECK-NEXT:      <key>location</key>
+// CHECK-NEXT:      <dict>
+// CHECK-NEXT:       <key>line</key><integer>87</integer>
+// CHECK-NEXT:       <key>col</key><integer>5</integer>
+// CHECK-NEXT:       <key>file</key><integer>0</integer>
+// CHECK-NEXT:      </dict>
+// CHECK-NEXT:      <key>ranges</key>
+// CHECK-NEXT:      <array>
+// CHECK-NEXT:        <array>
+// CHECK-NEXT:         <dict>
+// CHECK-NEXT:          <key>line</key><integer>87</integer>
+// CHECK-NEXT:          <key>col</key><integer>6</integer>
+// CHECK-NEXT:          <key>file</key><integer>0</integer>
+// CHECK-NEXT:         </dict>
+// CHECK-NEXT:         <dict>
+// CHECK-NEXT:          <key>line</key><integer>87</integer>
+// CHECK-NEXT:          <key>col</key><integer>6</integer>
+// CHECK-NEXT:          <key>file</key><integer>0</integer>
+// CHECK-NEXT:         </dict>
+// CHECK-NEXT:        </array>
+// CHECK-NEXT:      </array>
+// CHECK-NEXT:      <key>depth</key><integer>0</integer>
+// CHECK-NEXT:      <key>extended_message</key>
+// CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
+// CHECK-NEXT:      <key>message</key>
+// CHECK-NEXT:      <string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
+// CHECK-NEXT:     </dict>
+// CHECK-NEXT:    </array>
+// CHECK-NEXT:    <key>description</key><string>Dereference of null pointer (loaded from variable &apos;p&apos;)</string>
+// CHECK-NEXT:    <key>category</key><string>Logic error</string>
+// CHECK-NEXT:    <key>type</key><string>Dereference of null pointer</string>
+// CHECK-NEXT:   <key>issue_context_kind</key><string>function</string>
+// CHECK-NEXT:   <key>issue_context</key><string>rdar12280665</string>
+// CHECK-NEXT:   <key>issue_hash</key><integer>4</integer>
+// CHECK-NEXT:   <key>location</key>
+// CHECK-NEXT:   <dict>
+// CHECK-NEXT:    <key>line</key><integer>87</integer>
+// CHECK-NEXT:    <key>col</key><integer>5</integer>
+// CHECK-NEXT:    <key>file</key><integer>0</integer>
+// CHECK-NEXT:   </dict>
+// CHECK-NEXT:   </dict>
 // CHECK-NEXT:  </array>