34 lines · c
1// RUN: %clang_cc1 -triple armv7-apple-darwin -emit-llvm %s -o - | FileCheck %s2 3// CHECK: call i32 asm "foo0", {{.*}} [[READNONE:#[0-9]+]]4// CHECK: call i32 asm "foo1", {{.*}} [[READNONE]]5// CHECK: call i32 asm "foo2", {{.*}} [[NOATTRS:#[0-9]+]]6// CHECK: call i32 asm sideeffect "foo3", {{.*}} [[NOATTRS]]7// CHECK: call i32 asm "foo4", {{.*}} [[READONLY:#[0-9]+]]8// CHECK: call i32 asm "foo5", {{.*}} [[READONLY]]9// CHECK: call i32 asm "foo6", {{.*}} [[NOATTRS]]10// CHECK: call void asm sideeffect "foo7", {{.*}} [[NOATTRS]]11// CHECK: call i32 asm "foo8", {{.*}} [[READNONE]]12 13// CHECK: attributes [[READNONE]] = { nounwind memory(none) }14// CHECK: attributes [[NOATTRS]] = { nounwind }15// CHECK: attributes [[READONLY]] = { nounwind memory(read) }16 17int g0, g1;18 19struct S {20 int i;21} g2;22 23void test_attrs(int a) {24 __asm__ ("foo0" : "=r"(g1) : "r"(a));25 __asm__ ("foo1" : "=r"(g1) : "r"(a) : "cc");26 __asm__ ("foo2" : "=r"(g1) : "r"(a) : "memory");27 __asm__ volatile("foo3" : "=r"(g1) : "r"(a));28 __asm__ ("foo4" : "=r"(g1) : "r"(a), "m"(g0));29 __asm__ ("foo5" : "=r"(g1) : "r"(a), "Q"(g0));30 __asm__ ("foo6" : "=r"(g1), "=m"(g0) : "r"(a));31 __asm__ ("foo7" : : "r"(a));32 __asm__ ("foo8" : "=r"(g2) : "r"(a));33}34