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gimple-ssa-sprintf.c (format_floating): Test HAVE_XFmode and HAVE_DFmode before using XFmode or DFmode.

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gcc/ChangeLog:
	* gimple-ssa-sprintf.c (format_floating): Test HAVE_XFmode and
	HAVE_DFmode before using XFmode or DFmode.
	(parse_directive): Avoid using the z length modifier to avoid
	the ISO C++98 does not support the ‘z’ gnu_printf length modifier.

From-SVN: r244957
This commit is contained in:
Martin Sebor 2017-01-26 23:37:17 +00:00 • committed by Martin Sebor
parent 31c87a433c
commit 9976a81057
2 changed files with 21 additions and 7 deletions
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5
gcc/ChangeLog
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@ -1,5 +1,10 @@
2017-01-26 Martin Sebor <msebor@redhat.com>
* gimple-ssa-sprintf.c (format_floating): Test HAVE_XFmode and
HAVE_DFmode before using XFmode or DFmode.
(parse_directive): Avoid using the z length modifier to avoid
the ISO C++98 does not support the ‘z’ gnu_printf length modifier.
PR middle-end/78703
* gimple-ssa-sprintf.c (adjust_for_width_or_precision): Change
to accept adjustment as an array.

23
gcc/gimple-ssa-sprintf.c
View file

@ -1686,11 +1686,19 @@ format_floating (const directive &dir, tree arg)
prec[0] = -1;
if (prec[1] < 0)
{
#ifdef HAVE_XFmode
/* When L is specified use long double, otherwise double. */
unsigned fmtprec
= (dir.modifier == FMT_LEN_L
? REAL_MODE_FORMAT (XFmode)->p
: REAL_MODE_FORMAT (DFmode)->p);
#elif defined HAVE_DFmode
/* No long double support, use double precision for both. */
unsigned fmtprec = REAL_MODE_FORMAT (DFmode)->p;
#else
/* No long double or double support. */
unsigned fmtprec = 0;
#endif
/* The precision of the IEEE 754 double format is 53.
The precision of all other GCC binary double formats
is 56 or less. */
@ -2706,10 +2714,11 @@ parse_directive (pass_sprintf_length::call_info &info,
if (dump_file)
{
fprintf (dump_file, " Directive %u at offset %zu: \"%.*s\", "
"length = %zu\n",
dir.dirno, (size_t)(dir.beg - info.fmtstr),
(int)dir.len, dir.beg, dir.len);
fprintf (dump_file, " Directive %u at offset %llu: \"%.*s\", "
"length = %llu\n",
dir.dirno,
(unsigned long long)(size_t)(dir.beg - info.fmtstr),
(int)dir.len, dir.beg, (unsigned long long)dir.len);
}
return len - !*str;
@ -3029,8 +3038,8 @@ parse_directive (pass_sprintf_length::call_info &info,
if (dump_file)
{
fprintf (dump_file, " Directive %u at offset %zu: \"%.*s\"",
dir.dirno, (size_t)(dir.beg - info.fmtstr),
fprintf (dump_file, " Directive %u at offset %llu: \"%.*s\"",
dir.dirno, (unsigned long long)(size_t)(dir.beg - info.fmtstr),
(int)dir.len, dir.beg);
if (star_width)
{