gcc/testsuite/gcc.target/powerpc/prefix-ds-dq.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target powerpc_prefixed_addr } */
   3 /* { dg-require-effective-target lp64 } */
   4 /* { dg-options "-O2 -mdejagnu-cpu=power10" } */
   5 /* If -mstrict-align is enabled by default, we don't get the expected opcodes.
   6    { dg-additional-options "-mno-strict-align" { target opt_mstrict_align } } */
   7
   8 /* Tests whether we generate a prefixed load/store operation for addresses that
   9    don't meet DS/DQ offset constraints.  64-bit is needed for testing the use
  10    of the PLWA instruciton.  */
  11
  12 struct packed_struct
  13 {
  14   long long pad;                        /* offset  0 bytes.  */
  15   unsigned char pad_uc;                 /* offset  8 bytes.  */
  16   unsigned char uc;                     /* offset  9 bytes.  */
  17
  18   unsigned char pad_sc[sizeof (long long) - sizeof (unsigned char)];
  19   unsigned char sc;                     /* offset  17 bytes.  */
  20
  21   unsigned char pad_us[sizeof (long long) - sizeof (signed char)];
  22   unsigned short us;                    /* offset  25 bytes.  */
  23
  24   unsigned char pad_ss[sizeof (long long) - sizeof (unsigned short)];
  25   short ss;                             /* offset 33 bytes.  */
  26
  27   unsigned char pad_ui[sizeof (long long) - sizeof (short)];
  28   unsigned int ui;                      /* offset 41 bytes.  */
  29
  30   unsigned char pad_si[sizeof (long long) - sizeof (unsigned int)];
  31   unsigned int si;                      /* offset 49 bytes.  */
  32
  33   unsigned char pad_f[sizeof (long long) - sizeof (int)];
  34   float f;                              /* offset 57 bytes.  */
  35
  36   unsigned char pad_d[sizeof (long long) - sizeof (float)];
  37   double d;                             /* offset 65 bytes.  */
  38   __float128 f128;                      /* offset 73 bytes.  */
  39 } __attribute__((packed));
  40
  41 unsigned char
  42 load_uc (struct packed_struct *p)
  43 {
  44   return p->uc;                         /* LBZ 3,9(3).  */
  45 }
  46
  47 signed char
  48 load_sc (struct packed_struct *p)
  49 {
  50   return p->sc;                         /* LBZ 3,17(3) + EXTSB 3,3.  */
  51 }
  52
  53 unsigned short
  54 load_us (struct packed_struct *p)
  55 {
  56   return p->us;                         /* LHZ 3,25(3).  */
  57 }
  58
  59 short
  60 load_ss (struct packed_struct *p)
  61 {
  62   return p->ss;                         /* LHA 3,33(3).  */
  63 }
  64
  65 unsigned int
  66 load_ui (struct packed_struct *p)
  67 {
  68   return p->ui;                         /* LWZ 3,41(3).  */
  69 }
  70
  71 int
  72 load_si (struct packed_struct *p)
  73 {
  74   return p->si;                         /* PLWA 3,49(3).  */
  75 }
  76
  77 float
  78 load_float (struct packed_struct *p)
  79 {
  80   return p->f;                          /* LFS 1,57(3).  */
  81 }
  82
  83 double
  84 load_double (struct packed_struct *p)
  85 {
  86   return p->d;                          /* LFD 1,65(3).  */
  87 }
  88
  89 __float128
  90 load_float128 (struct packed_struct *p)
  91 {
  92   return p->f128;                       /* PLXV 34,73(3).  */
  93 }
  94
  95 void
  96 store_uc (struct packed_struct *p, unsigned char uc)
  97 {
  98   p->uc = uc;                           /* STB 4,9(3).  */
  99 }
 100
 101 void
 102 store_sc (struct packed_struct *p, signed char sc)
 103 {
 104   p->sc = sc;                           /* STB 4,17(3).  */
 105 }
 106
 107 void
 108 store_us (struct packed_struct *p, unsigned short us)
 109 {
 110   p->us = us;                           /* STH 4,25(3).  */
 111 }
 112
 113 void
 114 store_ss (struct packed_struct *p, signed short ss)
 115 {
 116   p->ss = ss;                           /* STH 4,33(3).  */
 117 }
 118
 119 void
 120 store_ui (struct packed_struct *p, unsigned int ui)
 121 {
 122   p->ui = ui;                           /* STW 4,41(3).  */
 123 }
 124
 125 void
 126 store_si (struct packed_struct *p, signed int si)
 127 {
 128   p->si = si;                           /* STW 4,49(3).  */
 129 }
 130
 131 void
 132 store_float (struct packed_struct *p, float f)
 133 {
 134   p->f = f;                             /* STFS 1,57(3).  */
 135 }
 136
 137 void
 138 store_double (struct packed_struct *p, double d)
 139 {
 140   p->d = d;                             /* STFD 1,65(3).  */
 141 }
 142
 143 void
 144 store_float128 (struct packed_struct *p, __float128 f128)
 145 {
 146   p->f128 = f128;                       /* PSTXV 34,1(3).  */
 147 }
 148
 149 /* { dg-final { scan-assembler-times {\mextsb\M} 1 } } */
 150 /* { dg-final { scan-assembler-times {\mlbz\M}   2 } } */
 151 /* { dg-final { scan-assembler-times {\mlfd\M}   1 } } */
 152 /* { dg-final { scan-assembler-times {\mlfs\M}   1 } } */
 153 /* { dg-final { scan-assembler-times {\mlha\M}   1 } } */
 154 /* { dg-final { scan-assembler-times {\mlhz\M}   1 } } */
 155 /* { dg-final { scan-assembler-times {\mlwz\M}   1 } } */
 156 /* { dg-final { scan-assembler-times {\mplwa\M}  1 } } */
 157 /* { dg-final { scan-assembler-times {\mplxv\M}  1 } } */
 158 /* { dg-final { scan-assembler-times {\mpstxv\M} 1 } } */
 159 /* { dg-final { scan-assembler-times {\mstb\M}   2 } } */
 160 /* { dg-final { scan-assembler-times {\mstfd\M}  1 } } */
 161 /* { dg-final { scan-assembler-times {\mstfs\M}  1 } } */
 162 /* { dg-final { scan-assembler-times {\msth\M}   2 } } */
 163 /* { dg-final { scan-assembler-times {\mstw\M}   2 } } */