[LLVMbugs] [Bug 23380] New: Loop vectorizer crash

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=23380

            Bug ID: 23380
           Summary: Loop vectorizer crash
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
          Assignee: unassignedclangbugs at nondot.org
          Reporter: chfast at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

This code crashes clang 3.7:

void test(unsigned* out)
{
    #pragma clang loop vectorize(enable)
    for (unsigned i = 0; i != 256; ++i)
    {
        for (unsigned w = 0; w != 16; ++w)
            ++out[w];
    }
}

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