libgfortran/mk-kinds-h.sh

   1 #!/bin/sh
   2 LC_ALL=C
   3 export LC_ALL
   4
   5 if test "$#" -ne 3; then
   6   echo "Usage $0 int_kinds real_kinds compile"
   7   exit 1
   8 fi
   9
  10 # Possible kinds must be listed in ascending order
  11 possible_integer_kinds="$1"
  12 possible_real_kinds="$2"
  13 compile="$3"
  14
  15 largest=""
  16 smallest=""
  17 for k in $possible_integer_kinds; do
  18   echo "  integer (kind=$k) :: i" > tmp$$.f90
  19   echo "  i = 1_$k" >> tmp$$.f90
  20   echo "  end" >> tmp$$.f90
  21   if $compile -S tmp$$.f90 > /dev/null 2>&1; then
  22     s=`expr 8 \* $k`
  23     largest="$k"
  24
  25     if [ $s -eq 128 ]; then
  26       prefix="__"
  27     else
  28       prefix=""
  29     fi
  30
  31     if [ "$smallest" = "" ]; then
  32         smallest="$k"
  33     fi
  34
  35     echo "typedef ${prefix}int${s}_t GFC_INTEGER_${k};"
  36     echo "typedef ${prefix}uint${s}_t GFC_UINTEGER_${k};"
  37     echo "typedef GFC_INTEGER_${k} GFC_LOGICAL_${k};"
  38     echo "#define HAVE_GFC_LOGICAL_${k}"
  39     echo "#define HAVE_GFC_INTEGER_${k}"
  40     echo ""
  41   fi
  42   rm -f tmp$$.*
  43 done
  44
  45 echo "#define GFC_INTEGER_LARGEST GFC_INTEGER_${largest}"
  46 echo "#define GFC_UINTEGER_LARGEST GFC_UINTEGER_${largest}"
  47 echo "#define GFC_DEFAULT_CHAR ${smallest}"
  48 echo ""
  49
  50
  51 # Get the kind value for long double, so we may disambiguate it
  52 # from __float128.
  53 echo "use iso_c_binding; print *, c_long_double ; end" > tmq$$.f90
  54 long_double_kind=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  55                         | sed 's/ *TRANSFER *//'`
  56 rm -f tmq$$.*
  57
  58
  59 for k in $possible_real_kinds; do
  60   echo "  real (kind=$k) :: x" > tmp$$.f90
  61   echo "  x = 1.0_$k" >> tmp$$.f90
  62   echo "  end" >> tmp$$.f90
  63   if $compile -S tmp$$.f90 > /dev/null 2>&1; then
  64     case $k in
  65       4) ctype="float" ; cplxtype="complex float" ; suffix="f" ;;
  66       8) ctype="double" ; cplxtype="complex double" ; suffix="" ;;
  67       10) ctype="long double" ; cplxtype="complex long double" ; suffix="l" ;;
  68       16) if [ $long_double_kind -eq 10 ]; then
  69             ctype="__float128"
  70             cplxtype="_Complex float __attribute__((mode(TC)))"
  71             suffix="q"
  72           else
  73             ctype="long double"
  74             cplxtype="complex long double"
  75             suffix="l"
  76           fi ;;
  77       *) echo "$0: Unknown type" >&2 ; exit 1 ;;
  78     esac
  79
  80     # Check for the value of HUGE
  81     echo "print *, huge(0._$k) ; end" > tmq$$.f90
  82     huge=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  83                 | sed 's/ *TRANSFER *//' | sed 's/_.*//'`
  84     rm -f tmq$$.*
  85
  86     # Check for the value of DIGITS
  87     echo "print *, digits(0._$k) ; end" > tmq$$.f90
  88     digits=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  89                 | sed 's/ *TRANSFER *//'`
  90     rm -f tmq$$.*
  91
  92     # Check for the value of RADIX
  93     echo "print *, radix(0._$k) ; end" > tmq$$.f90
  94     radix=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  95                 | sed 's/ *TRANSFER *//'`
  96     rm -f tmq$$.*
  97
  98     # Output the information we've gathered
  99     echo "typedef ${ctype} GFC_REAL_${k};"
 100     echo "typedef ${cplxtype} GFC_COMPLEX_${k};"
 101     echo "#define HAVE_GFC_REAL_${k}"
 102     echo "#define HAVE_GFC_COMPLEX_${k}"
 103     echo "#define GFC_REAL_${k}_HUGE ${huge}${suffix}"
 104     echo "#define GFC_REAL_${k}_LITERAL_SUFFIX ${suffix}"
 105     if [ "x$suffix" = "x" ]; then
 106       echo "#define GFC_REAL_${k}_LITERAL(X) (X)"
 107     else
 108       echo "#define GFC_REAL_${k}_LITERAL(X) (X ## ${suffix})"
 109     fi
 110     echo "#define GFC_REAL_${k}_DIGITS ${digits}"
 111     echo "#define GFC_REAL_${k}_RADIX ${radix}"
 112     echo ""
 113   fi
 114   rm -f tmp$$.*
 115 done
 116
 117
 118 # After this, we include a header that can override some of the
 119 # autodetected settings.
 120 echo '#include "kinds-override.h"'
 121
 122 exit 0