17e0afd9976b0c121d17a1f7b60837bd2be5d7cc5Eric Christopher/* RUN: %clang_cc1 %s -emit-llvm -triple x86_64-apple-darwin -o - | FileCheck %s 23883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher 33883e66cfd55de70d89831cf26f9ae53931d11d3Eric ChristopherThe FE must generate padding here both at the end of each PyG_Head and 43883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopherbetween array elements. Reduced from Python. */ 53883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher 63883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christophertypedef union _gc_head { 73883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher struct { 83883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher union _gc_head *gc_next; 93883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher union _gc_head *gc_prev; 103883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher long gc_refs; 113883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher } gc; 123883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher int dummy __attribute__((aligned(16))); 133883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher} PyGC_Head; 143883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher 153883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopherstruct gc_generation { 163883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher PyGC_Head head; 173883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher int threshold; 183883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher int count; 193883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher}; 203883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher 213883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher#define GEN_HEAD(n) (&generations[n].head) 223883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher 233883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher// The idea is that there are 6 undefs in this structure initializer to cover 243883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher// the padding between elements. 253ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar// CHECK: @generations = global [3 x %struct.gc_generation] [%struct.gc_generation { %union._gc_head { %struct.anon { %union._gc_head* getelementptr inbounds ([3 x %struct.gc_generation], [3 x %struct.gc_generation]* @generations, i32 0, i32 0, i32 0), %union._gc_head* getelementptr inbounds ([3 x %struct.gc_generation], [3 x %struct.gc_generation]* @generations, i32 0, i32 0, i32 0), i64 0 }, [8 x i8] undef }, i32 700, i32 0, [8 x i8] undef }, %struct.gc_generation { %union._gc_head { %struct.anon { %union._gc_head* bitcast (i8* getelementptr (i8, i8* bitcast ([3 x %struct.gc_generation]* @generations to i8*), i64 48) to %union._gc_head*), %union._gc_head* bitcast (i8* getelementptr (i8, i8* bitcast ([3 x %struct.gc_generation]* @generations to i8*), i64 48) to %union._gc_head*), i64 0 }, [8 x i8] undef }, i32 10, i32 0, [8 x i8] undef }, %struct.gc_generation { %union._gc_head { %struct.anon { %union._gc_head* bitcast (i8* getelementptr (i8, i8* bitcast ([3 x %struct.gc_generation]* @generations to i8*), i64 96) to %union._gc_head*), %union._gc_head* bitcast (i8* getelementptr (i8, i8* bitcast ([3 x %struct.gc_generation]* @generations to i8*), i64 96) to %union._gc_head*), i64 0 }, [8 x i8] undef }, i32 10, i32 0, [8 x i8] undef }] 263883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher/* linked lists of container objects */ 273883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopherstruct gc_generation generations[3] = { 283883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher /* PyGC_Head, threshold, count */ 293883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher {{{GEN_HEAD(0), GEN_HEAD(0), 0}}, 700, 0}, 303883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher {{{GEN_HEAD(1), GEN_HEAD(1), 0}}, 10, 0}, 313883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher {{{GEN_HEAD(2), GEN_HEAD(2), 0}}, 10, 0}, 323883e66cfd55de70d89831cf26f9ae53931d11d3Eric Christopher}; 33