1 // RUN: %clang_cc1 -triple i686-linux-gnu -target-cpu i686 -emit-llvm %s -o - | FileCheck %s
2 
3 typedef double V2LLi __attribute__((vector_size(16)));
4 typedef double V4LLi __attribute__((vector_size(32)));
5 
6 // Make sure builtin forces a min-legal-width attribute
foo(void)7 void foo(void) {
8   V2LLi  tmp_V2LLi;
9 
10   tmp_V2LLi = __builtin_ia32_undef128();
11 }
12 
13 // Make sure explicit attribute larger than builtin wins.
goo(void)14 void goo(void) __attribute__((__min_vector_width__(256))) {
15   V2LLi  tmp_V2LLi;
16 
17   tmp_V2LLi = __builtin_ia32_undef128();
18 }
19 
20 // Make sure builtin larger than explicit attribute wins.
hoo(void)21 void hoo(void) __attribute__((__min_vector_width__(128))) {
22   V4LLi  tmp_V4LLi;
23 
24   tmp_V4LLi = __builtin_ia32_undef256();
25 }
26 
27 // CHECK: foo{{.*}} #0
28 // CHECK: goo{{.*}} #1
29 // CHECK: hoo{{.*}} #1
30 
31 // CHECK: #0 = {{.*}}"min-legal-vector-width"="128"
32 // CHECK: #1 = {{.*}}"min-legal-vector-width"="256"
33