[LLVMbugs] [Bug 19037] New: Missing nodes in ForStmt

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=19037

            Bug ID: 19037
           Summary: Missing nodes in ForStmt
           Product: clang
           Version: 3.4
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: libclang
          Assignee: unassignedclangbugs at nondot.org
          Reporter: vpozdyayev at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Since null nodes are skipped while traversing the tree, it is impossible to
detect which form of a reduced for statement is in effect:

    int main( int, char ** ) {
        for( 0; ; )
            break;
        for( ; 0; )
            break;
        for( ; ; 0 )
            break;
    } 

Quoting from a tree dump:

COMPOUND_STMT @ (1, 26) (id=6, can=6 ())
 FOR_STMT @ (2, 2) (id=7, can=7 ())
  INTEGER_LITERAL @ (2, 7) (id=8, can=8 (), type={INT, tid=5, tcan=5})
  BREAK_STMT @ (3, 3) (id=9, can=9 ())
 FOR_STMT @ (4, 2) (id=10, can=10 ())
  UNEXPOSED_EXPR @ (4, 9) (id=11, can=11 (), type={BOOL, tid=7, tcan=7})
   INTEGER_LITERAL @ (4, 9) (id=12, can=12 (), type={INT, tid=5, tcan=5})
  BREAK_STMT @ (5, 3) (id=13, can=13 ())
 FOR_STMT @ (6, 2) (id=14, can=14 ())
  INTEGER_LITERAL @ (6, 11) (id=15, can=15 (), type={INT, tid=5, tcan=5})
  BREAK_STMT @ (7, 3) (id=16, can=16 ())

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20140304/c9fc14af/attachment.html>