1 files changed, 85 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/isa-check.h b/gcc/testsuite/gcc.target/i386/isa-check.h
new file mode 100644
index 000000000..8ddbf4dfc
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/isa-check.h
@@ -0,0 +1,85 @@
+#include "cpuid.h"
+
+extern void exit (int) __attribute__((noreturn));
+
+/* Determine what instruction set we've been compiled for,
+   and detect that we're running with it.  */
+static void __attribute__((constructor))
+check_isa (void)
+{
+  int a, b, c, d;
+  int c1, d1, c1e, d1e;
+
+  c1 = d1 = c1e = d1e = 0;
+
+#ifdef __MMX__
+  d1 |= bit_MMX;
+#endif
+#ifdef __3dNOW__
+  d1e |= bit_3DNOW;
+#endif
+#ifdef __3dNOW_A__
+  d1e |= bit_3DNOWP;
+#endif
+#ifdef __SSE__
+  d1 |= bit_SSE;
+#endif
+#ifdef __SSE2__
+  d1 |= bit_SSE2;
+#endif
+#ifdef __SSE3__
+  c1 |= bit_SSE3;
+#endif
+#ifdef __SSSE3__
+  c1 |= bit_SSSE3;
+#endif
+#ifdef __SSE4_1__
+  c1 |= bit_SSE4_1;
+#endif
+#ifdef __SSE4_2__
+  c1 |= bit_SSE4_2;
+#endif
+#ifdef __AES__
+  c1 |= bit_AES;
+#endif
+#ifdef __PCLMUL__
+  c1 |= bit_PCLMUL;
+#endif
+#ifdef __AVX__
+  c1 |= bit_AVX;
+#endif
+#ifdef __FMA__
+  c1 |= bit_FMA;
+#endif
+#ifdef __SSE4A__
+  c1e |= bit_SSE4a;
+#endif
+#ifdef __FMA4__
+  c1e |= bit_FMA4;
+#endif
+#ifdef __XOP__
+  c1e |= bit_XOP;
+#endif
+#ifdef __LWP__
+  c1e |= bit_LWP;
+#endif
+
+  if (c1 | d1)
+    {
+      if (!__get_cpuid (1, &a, &b, &c, &d))
+	goto fail;
+      if ((c & c1) != c1 || (d & d1) != d1)
+	goto fail;
+    }
+  if (c1e | d1e)
+    {
+      if (!__get_cpuid (0x80000001, &a, &b, &c, &d))
+	goto fail;
+      if ((c & c1e) != c1e || (d & d1e) != d1e)
+	goto fail;
+    }
+  return;
+
+ fail:
+  exit (0);
+}