clang/test/CodeGen/X86/x86-vector-width.c

   1 // RUN: %clang_cc1 -triple i686-linux-gnu -target-cpu i686 -emit-llvm %s -o - | FileCheck %s
   2
   3 typedef signed long long V2LLi __attribute__((vector_size(16)));
   4 typedef signed long long V4LLi __attribute__((vector_size(32)));
   5
   6 V2LLi ret_128(void);
   7 V4LLi ret_256(void);
   8 void arg_128(V2LLi);
   9 void arg_256(V4LLi);
  10
  11 // Make sure return type forces a min-legal-width
  12 V2LLi foo(void) {
  13   return (V2LLi){ 0, 0 };
  14 }
  15
  16 V4LLi goo(void) {
  17   return (V4LLi){ 0, 0 };
  18 }
  19
  20 // Make sure return type of called function forces a min-legal-width
  21 void hoo(void) {
  22   V2LLi tmp_V2LLi;
  23   tmp_V2LLi = ret_128();
  24 }
  25
  26 void joo(void) {
  27   V4LLi tmp_V4LLi;
  28   tmp_V4LLi = ret_256();
  29 }
  30
  31 // Make sure arg type of called function forces a min-legal-width
  32 void koo(void) {
  33   V2LLi tmp_V2LLi;
  34   arg_128(tmp_V2LLi);
  35 }
  36
  37 void loo(void) {
  38   V4LLi tmp_V4LLi;
  39   arg_256(tmp_V4LLi);
  40 }
  41
  42 // Make sure arg type of our function forces a min-legal-width
  43 void moo(V2LLi x) {
  44
  45 }
  46
  47 void noo(V4LLi x) {
  48
  49 }
  50
  51 // CHECK: {{.*}}@foo{{.*}} #0
  52 // CHECK: {{.*}}@goo{{.*}} #1
  53 // CHECK: {{.*}}@hoo{{.*}} #0
  54 // CHECK: {{.*}}@joo{{.*}} #1
  55 // CHECK: {{.*}}@koo{{.*}} #0
  56 // CHECK: {{.*}}@loo{{.*}} #1
  57 // CHECK: {{.*}}@moo{{.*}} #0
  58 // CHECK: {{.*}}@noo{{.*}} #1
  59
  60 // CHECK: #0 = {{.*}}"min-legal-vector-width"="128"
  61 // CHECK: #1 = {{.*}}"min-legal-vector-width"="256"