clang/test/CodeGen/Nontemporal.cpp

   1 // Test frontend handling of nontemporal builtins.
   2 // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm %s -o - | FileCheck %s
   3
   4 signed char sc;
   5 unsigned char uc;
   6 signed short ss;
   7 unsigned short us;
   8 signed int si;
   9 unsigned int ui;
  10 signed long long sll;
  11 unsigned long long ull;
  12 float f1, f2;
  13 double d1, d2;
  14 float __attribute__((vector_size(16))) vf1, vf2;
  15 char __attribute__((vector_size(8))) vc1, vc2;
  16 bool b1, b2;
  17
  18 void test_all_sizes(void)                 // CHECK-LABEL: test_all_sizes
  19 {
  20   __builtin_nontemporal_store(true, &b1); // CHECK: store i8 1, ptr @b1, align 1, !nontemporal
  21   __builtin_nontemporal_store(b1, &b2);   // CHECK: store i8{{.*}}, align 1, !nontemporal
  22   __builtin_nontemporal_store(1, &uc);    // CHECK: store i8{{.*}}align 1, !nontemporal
  23   __builtin_nontemporal_store(1, &sc);    // CHECK: store i8{{.*}}align 1, !nontemporal
  24   __builtin_nontemporal_store(1, &us);    // CHECK: store i16{{.*}}align 2, !nontemporal
  25   __builtin_nontemporal_store(1, &ss);    // CHECK: store i16{{.*}}align 2, !nontemporal
  26   __builtin_nontemporal_store(1, &ui);    // CHECK: store i32{{.*}}align 4, !nontemporal
  27   __builtin_nontemporal_store(1, &si);    // CHECK: store i32{{.*}}align 4, !nontemporal
  28   __builtin_nontemporal_store(1, &ull);   // CHECK: store i64{{.*}}align 8, !nontemporal
  29   __builtin_nontemporal_store(1, &sll);   // CHECK: store i64{{.*}}align 8, !nontemporal
  30   __builtin_nontemporal_store(1.0, &f1);  // CHECK: store float{{.*}}align 4, !nontemporal
  31   __builtin_nontemporal_store(1.0, &d1);  // CHECK: store double{{.*}}align 8, !nontemporal
  32   __builtin_nontemporal_store(vf1, &vf2); // CHECK: store <4 x float>{{.*}}align 16, !nontemporal
  33   __builtin_nontemporal_store(vc1, &vc2); // CHECK: store <8 x i8>{{.*}}align 8, !nontemporal
  34
  35   b1 = __builtin_nontemporal_load(&b2);   // CHECK: load i8{{.*}}align 1, !nontemporal
  36   uc = __builtin_nontemporal_load(&sc);   // CHECK: load i8{{.*}}align 1, !nontemporal
  37   sc = __builtin_nontemporal_load(&uc);   // CHECK: load i8{{.*}}align 1, !nontemporal
  38   us = __builtin_nontemporal_load(&ss);   // CHECK: load i16{{.*}}align 2, !nontemporal
  39   ss = __builtin_nontemporal_load(&us);   // CHECK: load i16{{.*}}align 2, !nontemporal
  40   ui = __builtin_nontemporal_load(&si);   // CHECK: load i32{{.*}}align 4, !nontemporal
  41   si = __builtin_nontemporal_load(&ui);   // CHECK: load i32{{.*}}align 4, !nontemporal
  42   ull = __builtin_nontemporal_load(&sll); // CHECK: load i64{{.*}}align 8, !nontemporal
  43   sll = __builtin_nontemporal_load(&ull); // CHECK: load i64{{.*}}align 8, !nontemporal
  44   f1 = __builtin_nontemporal_load(&f2);   // CHECK: load float{{.*}}align 4, !nontemporal
  45   d1 = __builtin_nontemporal_load(&d2);   // CHECK: load double{{.*}}align 8, !nontemporal
  46   vf2 = __builtin_nontemporal_load(&vf1); // CHECK: load <4 x float>{{.*}}align 16, !nontemporal
  47   vc2 = __builtin_nontemporal_load(&vc1); // CHECK: load <8 x i8>{{.*}}align 8, !nontemporal
  48 }