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       # If we have a REAL(KIND=10), it is always long double
  68       10) ctype="long double" ; cplxtype="complex long double" ; suffix="l" ;;
  69       # If we have a REAL(KIND=16), it is either long double or __float128
  70       16) if [ $long_double_kind -ne 16 ]; then
  71             ctype="__float128"
  72             cplxtype="_Complex float __attribute__((mode(TC)))"
  73             suffix="q"
  74             echo "#define GFC_REAL_16_IS_FLOAT128"
  75           else
  76             ctype="long double"
  77             cplxtype="complex long double"
  78             suffix="l"
  79             echo "#define GFC_REAL_16_IS_LONG_DOUBLE"
  80           fi ;;
  81       *) echo "$0: Unknown type" >&2 ; exit 1 ;;
  82     esac
  83
  84     # Check for the value of HUGE
  85     echo "print *, huge(0._$k) ; end" > tmq$$.f90
  86     huge=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  87                 | sed 's/ *TRANSFER *//' | sed 's/_.*//'`
  88     rm -f tmq$$.*
  89
  90     # Check for the value of TINY
  91     echo "print *, tiny(0._$k) ; end" > tmq$$.f90
  92     tiny=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  93                 | sed 's/ *TRANSFER *//' | sed 's/_.*//'`
  94     rm -f tmq$$.*
  95
  96     # Check for the value of DIGITS
  97     echo "print *, digits(0._$k) ; end" > tmq$$.f90
  98     digits=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  99                 | sed 's/ *TRANSFER *//'`
 100     rm -f tmq$$.*
 101
 102     # Check for the value of RADIX
 103     echo "print *, radix(0._$k) ; end" > tmq$$.f90
 104     radix=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
 105                 | sed 's/ *TRANSFER *//'`
 106     rm -f tmq$$.*
 107
 108     # Output the information we've gathered
 109     echo "typedef ${ctype} GFC_REAL_${k};"
 110     echo "typedef ${cplxtype} GFC_COMPLEX_${k};"
 111     echo "#define HAVE_GFC_REAL_${k}"
 112     echo "#define HAVE_GFC_COMPLEX_${k}"
 113     echo "#define GFC_REAL_${k}_HUGE ${huge}${suffix}"
 114     echo "#define GFC_REAL_${k}_TINY ${tiny}${suffix}"
 115     echo "#define GFC_REAL_${k}_LITERAL_SUFFIX ${suffix}"
 116     if [ "x$suffix" = "x" ]; then
 117       echo "#define GFC_REAL_${k}_LITERAL(X) (X)"
 118     else
 119       echo "#define GFC_REAL_${k}_LITERAL(X) (X ## ${suffix})"
 120     fi
 121     echo "#define GFC_REAL_${k}_DIGITS ${digits}"
 122     echo "#define GFC_REAL_${k}_RADIX ${radix}"
 123     echo ""
 124   fi
 125   rm -f tmp$$.*
 126 done
 127
 128
 129 # After this, we include a header that can override some of the
 130 # autodetected settings.
 131 echo '#include "kinds-override.h"'
 132
 133 exit 0