132083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani// RUN: %clang_cc1 -triple x86_64-pc-win32 -emit-llvm -O2 -o - %s | FileCheck %s 232083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani 332083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani// Under Windows 64, int and long are 32-bits. Make sure pointer math doesn't 432083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani// cause any sign extensions. 532083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani 6dae08c7a54acb159829c7d6ebc82eed2a3aba69aCameron Esfahani// CHECK: [[P:%.*]] = add i64 %param, -8 707080fc91dad9e4cd015ea43053d492b544904c5Benjamin Kramer// CHECK-NEXT: [[Q:%.*]] = inttoptr i64 [[P]] to [[R:%.*\*]] 8dae08c7a54acb159829c7d6ebc82eed2a3aba69aCameron Esfahani// CHECK-NEXT: {{%.*}} = getelementptr inbounds [[R]] [[Q]], i64 0, i32 0 932083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani 1032083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani#define CR(Record, TYPE, Field) \ 1132083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani ((TYPE *) ((unsigned char *) (Record) - (unsigned char *) &(((TYPE *) 0)->Field))) 1232083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani 1332083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahanitypedef struct _LIST_ENTRY { 1432083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani struct _LIST_ENTRY *ForwardLink; 1532083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani struct _LIST_ENTRY *BackLink; 1632083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani} LIST_ENTRY; 1732083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani 1832083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahanitypedef struct { 1932083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani unsigned long long Signature; 2032083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani LIST_ENTRY Link; 2132083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani} MEMORY_MAP; 2232083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani 2332083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahaniint test(unsigned long long param) 2432083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani{ 2532083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani LIST_ENTRY *Link; 2632083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani MEMORY_MAP *Entry; 2732083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani 2832083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani Link = (LIST_ENTRY *) param; 2932083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani 3032083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani Entry = CR (Link, MEMORY_MAP, Link); 3132083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani return (int) Entry->Signature; 3232083823fb50672a0df6b5e9a4dc728f4bc7e381Cameron Esfahani} 33