| 1 | // RUN: %clang_cc1 -emit-llvm < %s -o - |
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| 2 | |
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| 3 | // A nice and complicated initialization example with unions from Python |
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| 4 | typedef int Py_ssize_t; |
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| 5 | |
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| 6 | typedef union _gc_head { |
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| 7 | struct { |
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| 8 | union _gc_head *gc_next; |
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| 9 | union _gc_head *gc_prev; |
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| 10 | Py_ssize_t gc_refs; |
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| 11 | } gc; |
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| 12 | long double dummy; /* force worst-case alignment */ |
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| 13 | } PyGC_Head; |
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| 14 | |
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| 15 | struct gc_generation { |
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| 16 | PyGC_Head head; |
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| 17 | int threshold; /* collection threshold */ |
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| 18 | int count; /* count of allocations or collections of younger |
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| 19 | generations */ |
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| 20 | }; |
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| 21 | |
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| 22 | #define NUM_GENERATIONS 3 |
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| 23 | #define GEN_HEAD(n) (&generations[n].head) |
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| 24 | |
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| 25 | /* linked lists of container objects */ |
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| 26 | struct gc_generation generations[NUM_GENERATIONS] = { |
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| 27 | /* PyGC_Head, threshold, count */ |
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| 28 | {{{GEN_HEAD(0), GEN_HEAD(0), 0}}, 700, 0}, |
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| 29 | {{{GEN_HEAD(1), GEN_HEAD(1), 0}}, 10, 0}, |
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| 30 | {{{GEN_HEAD(2), GEN_HEAD(2), 0}}, 10, 0}, |
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| 31 | }; |
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| 32 | |
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