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-rw-r--r--stdio-common/printf_fp.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/stdio-common/printf_fp.c b/stdio-common/printf_fp.c
index 5cf60f131c..009bdee0d5 100644
--- a/stdio-common/printf_fp.c
+++ b/stdio-common/printf_fp.c
@@ -625,11 +625,22 @@ __printf_fp (FILE *fp,
/* All factors but 10^-1 are tested now. */
if (exponent > 0)
{
+ int cnt_l;
+
cy = __mpn_mul_1 (tmp, frac, fracsize, 10);
tmpsize = fracsize;
assert (cy == 0 || tmp[tmpsize - 1] < 20);
- (void) __mpn_rshift (frac, tmp, tmpsize, MIN (4, exponent));
+ count_trailing_zeros (cnt_l, tmp[0]);
+ if (cnt_l < MIN (4, exponent))
+ {
+ cy = __mpn_lshift (frac, tmp, tmpsize,
+ BITS_PER_MP_LIMB - MIN (4, exponent));
+ if (cy != 0)
+ frac[tmpsize++] = cy;
+ }
+ else
+ (void) __mpn_rshift (frac, tmp, tmpsize, MIN (4, exponent));
fracsize = tmpsize;
exp10 |= 1;
assert (frac[fracsize - 1] < 10);