r188682 - [analyzer] Don't run unreachable code checker on inlined functions.

[Jordan Rose]

Author: jrose
Date: Mon Aug 19 12:03:12 2013
New Revision: 188682

URL: http://llvm.org/viewvc/llvm-project?rev=188682&view=rev
Log:
[analyzer] Don't run unreachable code checker on inlined functions.

This is still an alpha checker, but we use it in certain tests to make sure
something is not being executed.

This should fix the buildbots.

Modified:
    cfe/trunk/lib/StaticAnalyzer/Checkers/UnreachableCodeChecker.cpp
    cfe/trunk/test/Analysis/unreachable-code-path.c

Modified: cfe/trunk/lib/StaticAnalyzer/Checkers/UnreachableCodeChecker.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/StaticAnalyzer/Checkers/UnreachableCodeChecker.cpp?rev=188682&r1=188681&r2=188682&view=diff
==============================================================================
--- cfe/trunk/lib/StaticAnalyzer/Checkers/UnreachableCodeChecker.cpp (original)
+++ cfe/trunk/lib/StaticAnalyzer/Checkers/UnreachableCodeChecker.cpp Mon Aug 19 12:03:12 2013
@@ -67,9 +67,12 @@ void UnreachableCodeChecker::checkEndAna
       I != E; ++I) {
     const ProgramPoint &P = I->getLocation();
     LC = P.getLocationContext();
+    if (!LC->inTopFrame())
+      continue;
 
     if (!D)
       D = LC->getAnalysisDeclContext()->getDecl();
+
     // Save the CFG if we don't have it already
     if (!C)
       C = LC->getAnalysisDeclContext()->getUnoptimizedCFG();

Modified: cfe/trunk/test/Analysis/unreachable-code-path.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Analysis/unreachable-code-path.c?rev=188682&r1=188681&r2=188682&view=diff
==============================================================================
--- cfe/trunk/test/Analysis/unreachable-code-path.c (original)
+++ cfe/trunk/test/Analysis/unreachable-code-path.c Mon Aug 19 12:03:12 2013
@@ -139,3 +139,22 @@ void test11(enum foobar fb) {
       error(); // expected-warning {{never executed}}
   }
 }
+
+void inlined(int condition) {
+  if (condition) {
+    foo(5); // no-warning
+  } else {
+    foo(6);
+  }
+}
+
+void testInlined() {
+  extern int coin();
+  int cond = coin();
+  if (!cond) {
+    inlined(0);
+    if (cond) {
+      foo(5); // expected-warning {{never executed}}
+    }
+  }
+}