1 // RUN: %clang_cc1 -triple x86_64 -target-cpu x86-64 -S -O1 -vectorize-loops -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK-ENABLE-VECT
2 // RUN: %clang_cc1 -triple x86_64 -target-cpu x86-64 -S -O1 -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK-DISABLE-VECT
3 // REQUIRES: x86-registered-target
4 
5 // CHECK-ENABLE-VECT-LABEL: @for_test()
6 // CHECK-ENABLE-VECT: fmul <{{[0-9]+}} x double>
7 
8 // CHECK-DISABLE-VECT-LABEL: @for_test()
9 // CHECK-DISABLE-VECT: fmul double
10 // CHECK-DISABLE-VECT-NOT: fmul <{{[0-9]+}} x double>
11 
12 int printf(const char * restrict format, ...);
13 
14 void for_test(void) {
15   double A[1000], B[1000];
16   int L = 500;
17   for (int i = 0; i < L; i++) {
18     A[i] = i;
19   }
20   for (int i = 0; i < L; i++) {
21     B[i] = A[i]*5;
22   }
23   printf("%lf %lf\n", A[0], B[0]);
24 }
25