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