gcc/testsuite/gcc.target/i386/prefetchi-2.c


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/* { dg-do compile { target { ia32 } } } */
/* { dg-options "-mprefetchi -O2" } */
/* { dg-final { scan-assembler-not "\[ \\t\]+prefetchit0" } } */
/* { dg-final { scan-assembler-not "\[ \\t\]+prefetchit1" } } */

#include <x86intrin.h>

int
bar (int a)
{
  return a + 1;
}

int
foo1 (int b)
{
  __builtin_ia32_prefetch (bar, 0, 3, 1); /* { dg-warning "instruction prefetch applies when in 64-bit mode with RIP-relative addressing and option '-mprefetchi'; they stay NOPs otherwise" } */
  return bar (b) + 1;
}

int
foo2 (int b)
{
  __builtin_ia32_prefetchi (bar, 2); /* { dg-warning "instruction prefetch applies when in 64-bit mode with RIP-relative addressing and option '-mprefetchi'; they stay NOPs otherwise" } */
  return bar (b) + 1;
}