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re PR middle-end/19983 (__builtin_nan should allow 0X as well as 0x)

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PR middle-end/19983
	* real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.

	* gcc.c-torture/execute/ieee/builtin-nan-1.c: New test case.

From-SVN: r111470
This commit is contained in:
Roger Sayle 2006-02-27 02:25:57 +00:00 • committed by Roger Sayle
parent efa1cdf018
commit 53f1b560db
4 changed files with 33 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2006-02-26 Roger Sayle <roger@eyesopen.com>
PR middle-end/19983
* real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
2006-02-26 Zdenek Dvorak <dvorakz@suse.cz>
* opts.c (decode_options): Do not handle flag_strength_reduce.

8
gcc/real.c
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@ -2193,8 +2193,12 @@ real_nan (REAL_VALUE_TYPE *r, const char *str, int quiet,
str++;
if (*str == '0')
{
if (*++str == 'x')
str++, base = 16;
str++;
if (*str == 'x' || *str == 'X')
{
base = 16;
str++;
}
else
base = 8;
}

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2006-02-26 Roger Sayle <roger@eyesopen.com>
PR middle-end/19983
* gcc.c-torture/execute/ieee/builtin-nan-1.c: New test case.
2006-02-26 Zdenek Dvorak <dvorakz@suse.cz>
* gcc.target/i386/20000614-2.c: Do not use -fno-strength-reduce.

17
gcc/testsuite/gcc.c-torture/execute/ieee/builtin-nan-1.c Normal file
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@ -0,0 +1,17 @@
/* PR middle-end/19983 */
typedef __SIZE_TYPE__ size_t;
extern void abort(void);
extern int memcmp(const void *, const void *, size_t);
double n1 = __builtin_nan("0x1");
double n2 = __builtin_nan("0X1");
int main()
{
if (memcmp (&n1, &n2, sizeof(double)))
abort();
return 0;
}