1 // RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s 2 // rdar://9894548 3 4 typedef unsigned long word_t; 5 typedef unsigned long u64_t; 6 typedef unsigned int u32_t; 7 8 class ioapic_redir_t { 9 public: 10 union { 11 struct { 12 word_t vector : 8; 13 14 word_t delivery_mode : 3; 15 word_t dest_mode : 1; 16 17 word_t delivery_status : 1; 18 word_t polarity : 1; 19 word_t irr : 1; 20 word_t trigger_mode : 1; 21 22 word_t mask : 1; 23 word_t _pad0 : 15; 24 25 word_t dest : 8; 26 }; 27 volatile u32_t raw[2]; 28 volatile u64_t raw64; 29 }; 30 }; 31 32 struct ioapic_shadow_struct 33 { 34 ioapic_redir_t redirs[24]; 35 } ioapic_shadow[16]; 36 37 void init_ioapic(unsigned long ioapic_id) 38 { 39 ioapic_redir_t entry; 40 ioapic_shadow[ioapic_id].redirs[3] = entry; 41 } 42 43 // CHECK: call void @llvm.memcpy 44
