43 lines
753 B
C++
43 lines
753 B
C++
// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
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// rdar://9894548
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typedef unsigned long word_t;
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typedef unsigned long u64_t;
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typedef unsigned int u32_t;
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class ioapic_redir_t {
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public:
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union {
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struct {
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word_t vector : 8;
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word_t delivery_mode : 3;
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word_t dest_mode : 1;
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word_t delivery_status : 1;
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word_t polarity : 1;
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word_t irr : 1;
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word_t trigger_mode : 1;
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word_t mask : 1;
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word_t _pad0 : 15;
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word_t dest : 8;
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};
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volatile u32_t raw[2];
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volatile u64_t raw64;
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};
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};
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struct ioapic_shadow_struct
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{
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ioapic_redir_t redirs[24];
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} ioapic_shadow[16];
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void init_ioapic(unsigned long ioapic_id)
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{
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ioapic_redir_t entry;
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ioapic_shadow[ioapic_id].redirs[3] = entry;
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}
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// CHECK: call void @llvm.memcpy
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