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1/* RUN: %clang_cc1 %s -emit-llvm -triple x86_64-apple-darwin -o - | FileCheck %s2/* RUN: %clang_cc1 %s -emit-llvm -triple x86_64-apple-darwin -o - -fexperimental-new-constant-interpreter | FileCheck %s3 4The FE must generate padding here both at the end of each PyG_Head and5between array elements. Reduced from Python. */6 7typedef union _gc_head {8 struct {9 union _gc_head *gc_next;10 union _gc_head *gc_prev;11 long gc_refs;12 } gc;13 int dummy __attribute__((aligned(16)));14} PyGC_Head;15 16struct gc_generation {17 PyGC_Head head;18 int threshold;19 int count;20};21 22#define GEN_HEAD(n) (&generations[n].head)23 24// The idea is that there are 6 zeroinitializers in this structure initializer to cover25// the padding between elements.26// CHECK: @generations ={{.*}} global [3 x %struct.gc_generation] [%struct.gc_generation { %union._gc_head { %struct.anon { ptr @generations, ptr @generations, i64 0 }, [8 x i8] zeroinitializer }, i32 700, i32 0, [8 x i8] zeroinitializer }, %struct.gc_generation { %union._gc_head { %struct.anon { ptr getelementptr (i8, ptr @generations, i64 48), ptr getelementptr (i8, ptr @generations, i64 48), i64 0 }, [8 x i8] zeroinitializer }, i32 10, i32 0, [8 x i8] zeroinitializer }, %struct.gc_generation { %union._gc_head { %struct.anon { ptr getelementptr (i8, ptr @generations, i64 96), ptr getelementptr (i8, ptr @generations, i64 96), i64 0 }, [8 x i8] zeroinitializer }, i32 10, i32 0, [8 x i8] zeroinitializer }]27/* linked lists of container objects */28struct gc_generation generations[3] = {29 /* PyGC_Head, threshold, count */30 {{{GEN_HEAD(0), GEN_HEAD(0), 0}}, 700, 0},31 {{{GEN_HEAD(1), GEN_HEAD(1), 0}}, 10, 0},32 {{{GEN_HEAD(2), GEN_HEAD(2), 0}}, 10, 0},33};34