66cf995da7
https://bugs.llvm.org/show_bug.cgi?id=51559 https://github.com/llvm/llvm-project/issues/50901 IPSCCP pass removes the global variable and does not create a constant expression for the initializer value. Extend test coverage to include: - half, bfloat types. - checks for undef (int32 and ptr). There is no support for: - fp128, x86_fp80, ppc_fp128 types. https://github.com/llvm/llvm-project/issues/88102