[LLVMbugs] [Bug 17570] New: Assertion in getLastStmtLoc with "continue" in loop and -Wconsumed

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon Oct 14 04:46:28 PDT 2013


            Bug ID: 17570
           Summary: Assertion in getLastStmtLoc with "continue" in loop
                    and -Wconsumed
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: jonathan.sauer at gmx.de
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 11370
  --> http://llvm.org/bugs/attachment.cgi?id=11370&action=edit
Complete log of clang run

The following code crashes clang r192574 when compiling with -Wconsumed:

static void foo()
    while (true)
        if (false)

This results (full crash log attached):

% ~/LLVM/build/Release+Asserts/bin/clang++ -Wconsumed clang.cpp
Assertion failed: (Block->pred_size() == 1 && *Block->pred_begin() &&
Block->succ_size() != 0), function getLastStmtLoc, file
/Users/rynnsauer/LLVM/llvm/tools/clang/lib/Analysis/Consumed.cpp, line 70.

The code compiles successfully with clang r192096.

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