Changeset da3b790


Ignore:
Timestamp:
Aug 10, 2020, 2:23:29 PM (4 years ago)
Author:
Peter A. Buhr <pabuhr@…>
Branches:
ADT, arm-eh, ast-experimental, enum, forall-pointer-decay, jacob/cs343-translation, master, new-ast, new-ast-unique-expr, pthread-emulation, qualifiedEnum
Children:
fd24f8c
Parents:
c1f38e6c
Message:

add alignment verification to floor2 and ceiling2, add missing 'signed' qualifier to char alignment, rename ceiling to ceiling_div, add new ceiling that matches with floor

File:
1 edited

Legend:

Unmodified
Added
Removed

  • libcfa/src/bitmanip.hfa

    rc1f38e6c rda3b790  
    1111// Created On       : Sat Mar 14 18:12:27 2020
    1212// Last Modified By : Peter A. Buhr
    13 // Last Modified On : Tue Jun  9 15:14:04 2020
    14 // Update Count     : 123
     13// Last Modified On : Mon Aug 10 09:21:02 2020
     14// Update Count     : 139
    1515//
    1616
    … …  
    2121// Bits are numbered 1-N.
    2222
    23 //#include <assert.h>
     23#include <assert.h>
    2424
    2525#define __bitsizeof( n ) (sizeof(n) * __CHAR_BIT__)
    … …  
    8989
    9090        // Returns n aligned at the floor of align, clear bits above or equal to align, giving n % align.
    91         signed char floor2( signed char n, char align ) { /*assert( is_pow2( align ) );*/ return n & -align; }
    92         unsigned char floor2( unsigned char n, unsigned char align ) { /*assert( is_pow2( align ) );*/ return n & -align; }
    93         short int floor2( short int n, short int align ) { /*assert( is_pow2( align ) );*/ return n & -align; }
    94         unsigned short int floor2( unsigned short int n, unsigned short int align ) { /*assert( is_pow2( align ) );*/ return n & -align; }
    95         int floor2( int n, int align ) { /*assert( is_pow2( align ) );*/ return n & -align; }
    96         unsigned int floor2( unsigned int n, unsigned int align ) { /*assert( is_pow2( align ) );*/ return n & -align; }
    97         long int floor2( long int n, long int align ) { /*assert( is_pow2( align ) );*/ return n & -align; }
    98         unsigned long int floor2( unsigned long int n, unsigned long int align ) { /*assert( is_pow2( align ) );*/ return n & -align; }
    99         long long int floor2( long long int n, long long int align ) { /*assert( is_pow2( align ) );*/ return n & -align; }
    100         unsigned long long int floor2( unsigned long long int n, unsigned long long int align ) { /*assert( is_pow2( align ) );*/ return n & -align; }
     91        signed char floor2( signed char n, signed char align ) { verify( is_pow2( align ) ); return n & -align; }
     92        unsigned char floor2( unsigned char n, unsigned char align ) { verify( is_pow2( align ) ); return n & -align; }
     93        short int floor2( short int n, short int align ) { verify( is_pow2( align ) ); return n & -align; }
     94        unsigned short int floor2( unsigned short int n, unsigned short int align ) { verify( is_pow2( align ) ); return n & -align; }
     95        int floor2( int n, int align ) { verify( is_pow2( align ) ); return n & -align; }
     96        unsigned int floor2( unsigned int n, unsigned int align ) { verify( is_pow2( align ) ); return n & -align; }
     97        long int floor2( long int n, long int align ) { verify( is_pow2( align ) ); return n & -align; }
     98        unsigned long int floor2( unsigned long int n, unsigned long int align ) { verify( is_pow2( align ) ); return n & -align; }
     99        long long int floor2( long long int n, long long int align ) { verify( is_pow2( align ) ); return n & -align; }
     100        unsigned long long int floor2( unsigned long long int n, unsigned long long int align ) { verify( is_pow2( align ) ); return n & -align; }
    101101
    102102        // forall( otype T | { T ?&?( T, T ); T -?( T ); } )
    103         // T floor2( T n, T align ) { /* assert( is_pow2( align ) ); */ return n & -align; }
     103        // T floor2( T n, T align ) { verify( is_pow2( align ) ); return n & -align; }
    104104
    105         signed char floor( signed char n, char align ) { return n / align * align; }
     105        signed char floor( signed char n, signed char align ) { return n / align * align; }
    106106        unsigned char floor( unsigned char n, unsigned char align ) { return n / align * align; }
    107107        short int floor( short int n, short int align ) { return n / align * align; }
    … …  
    118118
    119119        // Returns n aligned at the ceiling of align, negate, round down, negate is the same as round up.
    120         signed char ceiling2( signed char n, char align ) { /*assert( is_pow2( align ) );*/ return -floor2( -n, align ); }
    121         unsigned char ceiling2( unsigned char n, unsigned char align ) { /*assert( is_pow2( align ) );*/ return -floor2( -n, align ); }
    122         short int ceiling2( short int n, short int align ) { /*assert( is_pow2( align ) );*/ return -floor2( -n, align ); }
    123         unsigned short int ceiling2( unsigned short int n, unsigned short int align ) { /*assert( is_pow2( align ) );*/ return -floor2( -n, align ); }
    124         int ceiling2( int n, int align ) { /*assert( is_pow2( align ) );*/ return -floor2( -n, align ); }
    125         unsigned int ceiling2( unsigned int n, unsigned int align ) { /*assert( is_pow2( align ) );*/ return -floor2( -n, align ); }
    126         long int ceiling2( long int n, long int align ) { /*assert( is_pow2( align ) );*/ return -floor2( -n, align ); }
    127         unsigned long int ceiling2( unsigned long int n, unsigned long int align ) { /*assert( is_pow2( align ) );*/ return -floor2( -n, align ); }
    128         long long int ceiling2( long long int n, long long int align ) { /*assert( is_pow2( align ) );*/ return -floor2( -n, align ); }
    129         unsigned long long int ceiling2( unsigned long long int n, unsigned long long int align ) { /*assert( is_pow2( align ) );*/ return -floor2( -n, align ); }
     120        signed char ceiling2( signed char n, signed char align ) { verify( is_pow2( align ) ); return -floor2( -n, align ); }
     121        unsigned char ceiling2( unsigned char n, unsigned char align ) { verify( is_pow2( align ) ); return -floor2( -n, align ); }
     122        short int ceiling2( short int n, short int align ) { verify( is_pow2( align ) ); return -floor2( -n, align ); }
     123        unsigned short int ceiling2( unsigned short int n, unsigned short int align ) { verify( is_pow2( align ) ); return -floor2( -n, align ); }
     124        int ceiling2( int n, int align ) { verify( is_pow2( align ) ); return -floor2( -n, align ); }
     125        unsigned int ceiling2( unsigned int n, unsigned int align ) { verify( is_pow2( align ) ); return -floor2( -n, align ); }
     126        long int ceiling2( long int n, long int align ) { verify( is_pow2( align ) ); return -floor2( -n, align ); }
     127        unsigned long int ceiling2( unsigned long int n, unsigned long int align ) { verify( is_pow2( align ) ); return -floor2( -n, align ); }
     128        long long int ceiling2( long long int n, long long int align ) { verify( is_pow2( align ) ); return -floor2( -n, align ); }
     129        unsigned long long int ceiling2( unsigned long long int n, unsigned long long int align ) { verify( is_pow2( align ) ); return -floor2( -n, align ); }
    130130
    131131        // forall( otype T | { T floor2( T, T ); T -?( T ); } )
    132         // T ceiling2( T n, T align ) { /* assert( is_pow2( align ) ); */ return -floor2( -n, align ); }
     132        // T ceiling2( T n, T align ) { verify( is_pow2( align ) ); return -floor2( -n, align ); }
    133133
    134         signed char ceiling( signed char n, char align ) { return (n + (align - 1)) / align; }
    135         unsigned char ceiling( unsigned char n, unsigned char align ) { return (n + (align - 1)) / align; }
    136         short int ceiling( short int n, short int align ) { return (n + (align - 1)) / align; }
    137         unsigned short int ceiling( unsigned short int n, unsigned short int align ) { return (n + (align - 1)) / align; }
    138         int ceiling( int n, int align ) { return (n + (align - 1)) / align; }
    139         unsigned int ceiling( unsigned int n, unsigned int align ) { return (n + (align - 1)) / align; }
    140         long int ceiling( long int n, long int align ) { return (n + (align - 1)) / align; }
    141         unsigned long int ceiling( unsigned long int n, unsigned long int align ) { return (n + (align - 1)) / align; }
    142         long long int ceiling( long long int n, long long int align ) { return (n + (align - 1)) / align; }
    143         unsigned long long int ceiling( unsigned long long int n, unsigned long long int align ) { return (n + (align - 1)) / align; }
     134        signed char ceiling_div( signed char n, char align ) { return (n + (align - 1)) / align; }
     135        unsigned char ceiling_div( unsigned char n, unsigned char align ) { return (n + (align - 1)) / align; }
     136        short int ceiling_div( short int n, short int align ) { return (n + (align - 1)) / align; }
     137        unsigned short int ceiling_div( unsigned short int n, unsigned short int align ) { return (n + (align - 1)) / align; }
     138        int ceiling_div( int n, int align ) { return (n + (align - 1)) / align; }
     139        unsigned int ceiling_div( unsigned int n, unsigned int align ) { return (n + (align - 1)) / align; }
     140        long int ceiling_div( long int n, long int align ) { return (n + (align - 1)) / align; }
     141        unsigned long int ceiling_div( unsigned long int n, unsigned long int align ) { return (n + (align - 1)) / align; }
     142        long long int ceiling_div( long long int n, long long int align ) { return (n + (align - 1)) / align; }
     143        unsigned long long int ceiling_div( unsigned long long int n, unsigned long long int align ) { return (n + (align - 1)) / align; }
     144
     145        // forall( otype T | { T ?+?( T, T ); T ?-?( T, T ); T ?%?( T, T ); } )
     146        // T ceiling_div( T n, T align ) { verify( is_pow2( align ) );return (n + (align - 1)) / align; }
     147       
     148        // gcc notices the div/mod pair and saves both so only one div.
     149        signed char ceiling( signed char n, signed char align ) { return floor( n + (n % align != 0 ? align - 1 : 0), align ); }
     150        unsigned char ceiling( unsigned char n, unsigned char align ) { return floor( n + (n % align != 0 ? align - 1 : 0), align ); }
     151        short int ceiling( short int n, short int align ) { return floor( n + (n % align != 0 ? align - 1 : 0), align ); }
     152        unsigned short int ceiling( unsigned short int n, unsigned short int align ) { return floor( n + (n % align != 0 ? align - 1 : 0), align ); }
     153        int ceiling( int n, int align ) { return floor( n + (n % align != 0 ? align - 1 : 0), align ); }
     154        unsigned int ceiling( unsigned int n, unsigned int align ) { return floor( n + (n % align != 0 ? align - 1 : 0), align ); }
     155        long int ceiling( long int n, long int align ) { return floor( n + (n % align != 0 ? align - 1 : 0), align ); }
     156        unsigned long int ceiling( unsigned long int n, unsigned long int align ) { return floor( n + (n % align != 0 ? align - 1 : 0) , align); }
     157        long long int ceiling( long long int n, long long int align ) { return floor( n + (n % align != 0 ? align - 1 : 0), align ); }
     158        unsigned long long int ceiling( unsigned long long int n, unsigned long long int align ) { return floor( n + (n % align != 0 ? align - 1 : 0), align ); }
    144159
    145160        // forall( otype T | { void ?{}( T &, one_t ); T ?+?( T, T ); T ?-?( T, T ); T ?/?( T, T ); } )
    146         // T ceiling( T n, T align ) { return (n + (align - (T){1})) / align; }
     161        // T ceiling( T n, T align ) { return return floor( n + (n % align != 0 ? align - 1 : 0), align ); *}
    147162} // distribution
    148163
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