[LLVMbugs] [Bug 15513] New: Assertion failure in template diffing code.

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=15513

            Bug ID: 15513
           Summary: Assertion failure in template diffing code.
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Keywords: crash-on-invalid
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: benny.kra at gmail.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu,
                    rtrieu at google.com
    Classification: Unclassified

This little beast crashes clang:

template <int x, int y = x+1>
class A {};

void foo(A<0> &M) {
  A<0, 0> N = M;
}

$ clang++ t.cc
Assertion failed: (0 && "Template arguments must be known at compile time."),
function IsEqualExpr, file llvm/tools/clang/lib/AST/ASTDiagnostic.cpp, line
1096.

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