xref: /llvm-project/clang/test/CodeGen/SystemZ/vec-abi-gnuattr-13.c (revision 481bb44baab5ce7a005b7d7eee6cafbde672695c)
1 // RUN: %clang_cc1 -triple s390x-ibm-linux -emit-llvm -fzvector -o - %s \
2 // RUN:   -Wno-undefined-internal 2>&1 | FileCheck  %s
3 //
4 // Test the emission of the "s390x-visible-vector-ABI" module flag.
5 
6 // Passing vector argument to varargs function between static functions. This
7 // also potentially exposes the vector ABI as the va_list may be passed on to
8 // another (global) function.
9 
10 typedef __attribute__((vector_size(16))) int v4i32;
11 
12 static int bar(int N, ...);
13 
foo()14 static void foo() {
15   v4i32 Var = {0, 0, 0, 0};
16   bar(0, Var);
17 }
18 
fun()19 void fun() { foo(); }
20 
21 //CHECK: !llvm.module.flags = !{!0, !1}
22 //CHECK: !0 = !{i32 2, !"s390x-visible-vector-ABI", i32 1}
23