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1// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm %s -o - | FileCheck %s2 3void f(int __attribute__((address_space(1))) * a, ...) {4  __builtin_prefetch(a, 0, 1);5  // CHECK: call void @llvm.prefetch.p1(ptr addrspace(1) {{%.+}}, i32 0, i32 1, i32 1)6}7