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GNU C Library master sources branch, master, updated. glibc-2.15-1129-gc5bfe3d
- From: jsm28 at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 1 Jun 2012 19:05:57 -0000
- Subject: GNU C Library master sources branch, master, updated. glibc-2.15-1129-gc5bfe3d
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http://sources.redhat.com/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=c5bfe3d5ba29d36563f1e4bd4f8d7336093ee6fc
commit c5bfe3d5ba29d36563f1e4bd4f8d7336093ee6fc
Author: Joseph Myers <joseph@codesourcery.com>
Date: Fri Jun 1 19:05:46 2012 +0000
Fix fmod for subnormals (bug 14048).
diff --git a/ChangeLog b/ChangeLog
index deb1c0a..a005bd7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
2012-06-01 Joseph Myers <joseph@codesourcery.com>
+ [BZ #14048]
+ * sysdeps/ieee754/dbl-64/wordsize-64/e_fmod.c (__ieee754_fmod):
+ Use int64_t for variable i.
+ * math/libm-test.inc (fmod_test): Add more tests.
+
* sysdeps/ieee754/dbl-64/s_fmaf.c (__fmaf): Ensure temp + (double)
z computation is not scheduled after fetestexcept.
* sysdeps/ieee754/ldbl-128/s_fmal.c: Include <math_private.h>.
diff --git a/math/libm-test.inc b/math/libm-test.inc
index bb19dee..2b2ca32 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -4123,6 +4123,14 @@ fmod_test (void)
TEST_ff_f (fmod, 6.5, -2.25L, 2.0L);
TEST_ff_f (fmod, -6.5, -2.25L, -2.0L);
+ TEST_ff_f (fmod, 0x0.fffffep-126L, 0x1p-149L, plus_zero);
+#ifndef TEST_FLOAT
+ TEST_ff_f (fmod, 0x0.fffffffffffffp-1022L, 0x1p-1074L, plus_zero);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MIN_EXP <= -16381
+ TEST_ff_f (fmod, 0x0.fffffffffffffffep-16382L, 0x1p-16445L, plus_zero);
+#endif
+
END (fmod);
}
diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/e_fmod.c b/sysdeps/ieee754/dbl-64/wordsize-64/e_fmod.c
index 6d25404..a630d10 100644
--- a/sysdeps/ieee754/dbl-64/wordsize-64/e_fmod.c
+++ b/sysdeps/ieee754/dbl-64/wordsize-64/e_fmod.c
@@ -24,8 +24,8 @@ static const double one = 1.0, Zero[] = {0.0, -0.0,};
double
__ieee754_fmod (double x, double y)
{
- int32_t n,i,ix,iy;
- int64_t hx,hy,hz,sx;
+ int32_t n,ix,iy;
+ int64_t hx,hy,hz,sx,i;
EXTRACT_WORDS64(hx,x);
EXTRACT_WORDS64(hy,y);
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 5 +++++
math/libm-test.inc | 8 ++++++++
sysdeps/ieee754/dbl-64/wordsize-64/e_fmod.c | 4 ++--
3 files changed, 15 insertions(+), 2 deletions(-)
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