diff options
| author | Kenneth Zadeck <zadeck@naturalbridge.com> | 2013-04-03 20:24:07 +0000 |
|---|---|---|
| committer | Kenneth Zadeck <zadeck@gcc.gnu.org> | 2013-04-03 20:24:07 +0000 |
| commit | 5e0919f1eecbb00fdcf16ff7e064be122fd0bbfc (patch) | |
| tree | 98ffd8bc9a37f3b09621b894c7db0addd5423458 /gcc/hwint.h | |
| parent | be672e08bbe0d9f210285ec6f3eccf4ff0469d0e (diff) | |
hwint.c (sext_hwi, zext_hwi): New functions.
2013-04-03 Kenneth Zadeck <zadeck@naturalbridge.com>
* hwint.c (sext_hwi, zext_hwi): New functions.
* hwint.h (HOST_BITS_PER_HALF_WIDE_INT, HOST_HALF_WIDE_INT,
HOST_HALF_WIDE_INT_PRINT, HOST_HALF_WIDE_INT_PRINT_C,
HOST_HALF_WIDE_INT_PRINT_DEC, HOST_HALF_WIDE_INT_PRINT_DEC_C,
HOST_HALF_WIDE_INT_PRINT_UNSIGNED, HOST_HALF_WIDE_INT_PRINT_HEX,
HOST_HALF_WIDE_INT_PRINT_HEX_PURE): New symbols.
(sext_hwi, zext_hwi): New functions.
From-SVN: r197456
Diffstat (limited to 'gcc/hwint.h')
| -rw-r--r-- | gcc/hwint.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/gcc/hwint.h b/gcc/hwint.h index da62fadcc9e..dbf023975cb 100644 --- a/gcc/hwint.h +++ b/gcc/hwint.h @@ -76,6 +76,40 @@ extern char sizeof_long_long_must_be_8[sizeof(long long) == 8 ? 1 : -1]; # endif #endif +/* Print support for half a host wide int. */ +#define HOST_BITS_PER_HALF_WIDE_INT (HOST_BITS_PER_WIDE_INT / 2) +#if HOST_BITS_PER_HALF_WIDE_INT == HOST_BITS_PER_LONG +# define HOST_HALF_WIDE_INT long +# define HOST_HALF_WIDE_INT_PRINT HOST_LONG_FORMAT +# define HOST_HALF_WIDE_INT_PRINT_C "L" +# define HOST_HALF_WIDE_INT_PRINT_DEC "%" HOST_HALF_WIDE_INT_PRINT "d" +# define HOST_HALF_WIDE_INT_PRINT_DEC_C HOST_HALF_WIDE_INT_PRINT_DEC HOST_HALF_WIDE_INT_PRINT_C +# define HOST_HALF_WIDE_INT_PRINT_UNSIGNED "%" HOST_HALF_WIDE_INT_PRINT "u" +# define HOST_HALF_WIDE_INT_PRINT_HEX "%#" HOST_HALF_WIDE_INT_PRINT "x" +# define HOST_HALF_WIDE_INT_PRINT_HEX_PURE "%" HOST_HALF_WIDE_INT_PRINT "x" +#elif HOST_BITS_PER_HALF_WIDE_INT == HOST_BITS_PER_INT +# define HOST_HALF_WIDE_INT int +# define HOST_HALF_WIDE_INT_PRINT "" +# define HOST_HALF_WIDE_INT_PRINT_C "" +# define HOST_HALF_WIDE_INT_PRINT_DEC "%" HOST_HALF_WIDE_INT_PRINT "d" +# define HOST_HALF_WIDE_INT_PRINT_DEC_C HOST_HALF_WIDE_INT_PRINT_DEC HOST_HALF_WIDE_INT_PRINT_C +# define HOST_HALF_WIDE_INT_PRINT_UNSIGNED "%" HOST_HALF_WIDE_INT_PRINT "u" +# define HOST_HALF_WIDE_INT_PRINT_HEX "%#" HOST_HALF_WIDE_INT_PRINT "x" +# define HOST_HALF_WIDE_INT_PRINT_HEX_PURE "%" HOST_HALF_WIDE_INT_PRINT "x" +#elif HOST_BITS_PER_HALF_WIDE_INT == HOST_BITS_PER_SHORT +# define HOST_HALF_WIDE_INT short +# define HOST_HALF_WIDE_INT_PRINT "" +# define HOST_HALF_WIDE_INT_PRINT_C "" +# define HOST_HALF_WIDE_INT_PRINT_DEC "%" HOST_HALF_WIDE_INT_PRINT "d" +# define HOST_HALF_WIDE_INT_PRINT_DEC_C HOST_HALF_WIDE_INT_PRINT_DEC HOST_HALF_WIDE_INT_PRINT_C +# define HOST_HALF_WIDE_INT_PRINT_UNSIGNED "%" HOST_HALF_WIDE_INT_PRINT "u" +# define HOST_HALF_WIDE_INT_PRINT_HEX "%#" HOST_HALF_WIDE_INT_PRINT "x" +# define HOST_HALF_WIDE_INT_PRINT_HEX_PURE "%" HOST_HALF_WIDE_INT_PRINT "x" +#else +#error Please add support for HOST_HALF_WIDE_INT +#endif + + #define HOST_WIDE_INT_1 HOST_WIDE_INT_C(1) /* This is a magic identifier which allows GCC to figure out the type @@ -93,9 +127,13 @@ typedef HOST_WIDE_INT __gcc_host_wide_int__; # if HOST_BITS_PER_WIDE_INT == 64 # define HOST_WIDE_INT_PRINT_DOUBLE_HEX \ "0x%" HOST_LONG_FORMAT "x%016" HOST_LONG_FORMAT "x" +# define HOST_WIDE_INT_PRINT_PADDED_HEX \ + "%016" HOST_LONG_FORMAT "x" # else # define HOST_WIDE_INT_PRINT_DOUBLE_HEX \ "0x%" HOST_LONG_FORMAT "x%08" HOST_LONG_FORMAT "x" +# define HOST_WIDE_INT_PRINT_PADDED_HEX \ + "%08" HOST_LONG_FORMAT "x" # endif #else # define HOST_WIDE_INT_PRINT HOST_LONG_LONG_FORMAT @@ -103,6 +141,8 @@ typedef HOST_WIDE_INT __gcc_host_wide_int__; /* We can assume that 'long long' is at least 64 bits. */ # define HOST_WIDE_INT_PRINT_DOUBLE_HEX \ "0x%" HOST_LONG_LONG_FORMAT "x%016" HOST_LONG_LONG_FORMAT "x" +# define HOST_WIDE_INT_PRINT_PADDED_HEX \ + "%016" HOST_LONG_LONG_FORMAT "x" #endif /* HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG */ #define HOST_WIDE_INT_PRINT_DEC "%" HOST_WIDE_INT_PRINT "d" @@ -276,4 +316,36 @@ extern HOST_WIDE_INT pos_mul_hwi (HOST_WIDE_INT, HOST_WIDE_INT); extern HOST_WIDE_INT mul_hwi (HOST_WIDE_INT, HOST_WIDE_INT); extern HOST_WIDE_INT least_common_multiple (HOST_WIDE_INT, HOST_WIDE_INT); +/* Sign extend SRC starting from PREC. */ + +#ifdef ENABLE_CHECKING +extern HOST_WIDE_INT sext_hwi (HOST_WIDE_INT, unsigned int); +#else +static inline HOST_WIDE_INT +sext_hwi (HOST_WIDE_INT src, unsigned int prec) +{ + if (prec == HOST_BITS_PER_WIDE_INT) + return src; + else + { + int shift = HOST_BITS_PER_WIDE_INT - prec; + return (src << shift) >> shift; + } +} +#endif + +/* Zero extend SRC starting from PREC. */ +#ifdef ENABLE_CHECKING +extern unsigned HOST_WIDE_INT zext_hwi (unsigned HOST_WIDE_INT, unsigned int); +#else +static inline unsigned HOST_WIDE_INT +zext_hwi (unsigned HOST_WIDE_INT src, unsigned int prec) +{ + if (prec == HOST_BITS_PER_WIDE_INT) + return src; + else + return src & (((HOST_WIDE_INT)1 << prec) - 1); +} +#endif + #endif /* ! GCC_HWINT_H */ |