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Add debug functions for REAL_VALUE_TYPE.

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We currently have no way of dumping REAL_VALUE_TYPEs when debugging.

Tested on a gdb session examining the real value 10.0:

(gdb) p min
$9 = {cl = 1, decimal = 0, sign = 0, signalling = 0, canonical = 0, uexp = 4, sig = {0, 0, 11529215046068469760}}
(gdb) p debug (min)
0x0.ap+4

gcc/ChangeLog:

	* real.cc (debug): New.
This commit is contained in:
Aldy Hernandez 2022-09-22 18:03:16 +02:00
parent 0706262498
commit 76dbbfe62c
1 changed files with 8 additions and 0 deletions
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8
gcc/real.cc
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@ -1900,6 +1900,14 @@ real_to_decimal (char *str, const REAL_VALUE_TYPE *r_orig, size_t buf_size,
digits, crop_trailing_zeros, VOIDmode);
}
DEBUG_FUNCTION void
debug (const REAL_VALUE_TYPE &r)
{
char s[60];
real_to_hexadecimal (s, &r, sizeof (s), 0, 1);
fprintf (stderr, "%s\n", s);
}
/* Render R as a hexadecimal floating point constant. Emit DIGITS
significant digits in the result, bounded by BUF_SIZE. If DIGITS is 0,
choose the maximum for the representation. If CROP_TRAILING_ZEROS,