libgfortran/mk-kinds-h.sh

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