[llvm-bugs] [Bug 39943] New: clang misbehaves with initializer lists longer than 2^32 elements

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=39943

            Bug ID: 39943
           Summary: clang misbehaves with initializer lists longer than
                    2^32 elements
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: LLVM Codegen
          Assignee: unassignedclangbugs at nondot.org
          Reporter: efriedma at codeaurora.org
                CC: llvm-bugs at lists.llvm.org, neeilans at live.com,
                    richard-llvm at metafoo.co.uk

The following C testcase:

char x[0x100000001] = {[0x100000000] = 1};

Produces the following IR:

@x = dso_local local_unnamed_addr global [1 x i8] c"\01", align 16


The following C testcase crashes:

char x[0x100000001] = {[0xffffffff] = 1,2,3};


I don't really care if this actually compiles correctly, but the miscompile is
confusing.

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