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6a636a813f
This fixes PR16418, which reports that a function calling __builtin_unwind_init() asserts. The cause is that this generates a spill/restore for VRSAVE, and we support that only on Darwin (because VRSAVE is only really used on Darwin). The test case checks only that we don't crash. We can add correctness checks once someone verifies what behavior the function is supposed to have. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185235 91177308-0d34-0410-b5e6-96231b3b80d8
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