gcc/testsuite/gcc.dg/torture/mips-hilo-1.c

   1 /* f1 checks that an mtlo is not moved before an mfhi.  f2 does the same
   2    for an mthi and an mflo.  */
   3 /* { dg-do run { target mips*-*-* } } */
   4 /* { dg-options "-mtune=rm7000" } */
   5
   6 extern void abort (void);
   7 extern void exit (int);
   8
   9 #define DECLARE(TYPE)                                                   \
  10   TYPE __attribute__ ((noinline)) __attribute__ ((nomips16))            \
  11   f1##TYPE (TYPE x1, TYPE x2, TYPE x3)                                  \
  12   {                                                                     \
  13     TYPE t1, t2;                                                        \
  14                                                                         \
  15     asm ("mult\t%1,%2" : "=h" (t1) : "d" (x1), "d" (x2) : "lo");        \
  16     asm ("mflo\t%0" : "=r" (t2) : "l" (x3) : "hi");                     \
  17     return t1 + t2;                                                     \
  18   }                                                                     \
  19                                                                         \
  20   TYPE __attribute__ ((noinline)) __attribute__ ((nomips16))            \
  21   f2##TYPE (TYPE x1, TYPE x2, TYPE x3)                                  \
  22   {                                                                     \
  23     TYPE t1, t2;                                                        \
  24                                                                         \
  25     asm ("mult\t%1,%2" : "=l" (t1) : "d" (x1), "d" (x2) : "hi");        \
  26     asm ("mfhi\t%0" : "=r" (t2) : "h" (x3) : "lo");                     \
  27     return t1 + t2;                                                     \
  28   }
  29
  30 #define TEST(TYPE)                                                      \
  31   if (f1##TYPE (1, 2, 10) != 10)                                        \
  32     abort ();                                                           \
  33   if (f2##TYPE (1, 2, 40) != 42)                                        \
  34     abort ()
  35
  36 typedef char c;
  37 typedef signed char sc;
  38 typedef unsigned char uc;
  39 typedef short s;
  40 typedef unsigned short us;
  41 typedef int i;
  42 typedef unsigned int ui;
  43 typedef long long ll;
  44 typedef unsigned long long ull;
  45
  46 DECLARE (c)
  47 DECLARE (sc)
  48 DECLARE (uc)
  49 DECLARE (s)
  50 DECLARE (us)
  51 DECLARE (i)
  52 DECLARE (ui)
  53 #if defined (__mips64)
  54 DECLARE (ll)
  55 DECLARE (ull)
  56 #endif
  57
  58 int
  59 main ()
  60 {
  61   TEST (c);
  62   TEST (sc);
  63   TEST (uc);
  64   TEST (s);
  65   TEST (us);
  66   TEST (i);
  67   TEST (ui);
  68 #if defined (__mips64)
  69   TEST (ll);
  70   TEST (ull);
  71 #endif
  72   exit (0);
  73 }