1fd842d36SHuihui Zhang // RUN: %clang_cc1 -triple arm-unknown-linux-gnueabi -emit-llvm %s -o - | FileCheck -check-prefix=LIBCALL %s
2fd842d36SHuihui Zhang // RUN: %clang_cc1 -triple armv8-eabi -emit-llvm %s -o - | FileCheck -check-prefix=NATIVE %s
303a9526fSEhud Katz // PR45476
403a9526fSEhud Katz 
503a9526fSEhud Katz // This test used to get into an infinite loop,
603a9526fSEhud Katz // which, in turn, caused clang to never finish execution.
703a9526fSEhud Katz 
803a9526fSEhud Katz struct s3 {
903a9526fSEhud Katz   char a, b, c;
1003a9526fSEhud Katz };
1103a9526fSEhud Katz 
1203a9526fSEhud Katz _Atomic struct s3 a;
1303a9526fSEhud Katz 
foo()1403a9526fSEhud Katz extern "C" void foo() {
15fd842d36SHuihui Zhang   // LIBCALL-LABEL: @foo
16fd842d36SHuihui Zhang   // LIBCALL: call void @__atomic_store
17fd842d36SHuihui Zhang   // NATIVE-LABEL: @foo
18*8043d5a9SJames Y Knight   // NATIVE: store atomic i32 {{.*}} seq_cst, align 4
1903a9526fSEhud Katz 
2003a9526fSEhud Katz   a = s3{1, 2, 3};
2103a9526fSEhud Katz }
22