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authorJoseph Myers <joseph@codesourcery.com>2015-06-18 23:27:41 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-06-18 23:27:41 +0000
commit8db3cdefefe39e9d42b05b1610a63190e9f7fba4 (patch)
treeb4ae0196406ac58ad51d28aacc95b074341c179c /ChangeLog
parenta7a3c24632904b5b1d7e47eaf6b955bba6246b8f (diff)
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Fix asinh missing underflows (bug 16350).
Similar to various other bugs in this area, some asinh implementations
do not raise the underflow exception for subnormal arguments, when the
result is tiny and inexact.  This patch forces the exception in a
similar way to previous fixes.

Tested for x86_64, x86 and mips64.

	[BZ #16350]
	* sysdeps/i386/fpu/s_asinh.S (__asinh): Force underflow exception
	for arguments with small absolute value.
	* sysdeps/i386/fpu/s_asinhf.S (__asinhf): Likewise.
	* sysdeps/i386/fpu/s_asinhl.S (__asinhl): Likewise.
	* sysdeps/ieee754/dbl-64/s_asinh.c: Include <float.h>.
	(__asinh): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/flt-32/s_asinhf.c: Include <float.h>.
	(__asinhf): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/ldbl-128/s_asinhl.c: Include <float.h>.
	(__asinhl): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/ldbl-128ibm/s_asinhl.c: Include <float.h>.
	(__asinhl): Force underflow exception for arguments with small
	absolute value.
	* sysdeps/ieee754/ldbl-96/s_asinhl.c: Include <float.h>.
	(__asinhl): Force underflow exception for arguments with small
	absolute value.
	* math/auto-libm-test-in: Do not mark underflow exceptions as
	possibly missing for bug 16350.
	* math/auto-libm-test-out: Regenerated.
Diffstat (limited to 'ChangeLog')
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diff --git a/ChangeLog b/ChangeLog
index 23d5b8da44..d218978307 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,29 @@
 2015-06-18  Joseph Myers  <joseph@codesourcery.com>
 
+	[BZ #16350]
+	* sysdeps/i386/fpu/s_asinh.S (__asinh): Force underflow exception
+	for arguments with small absolute value.
+	* sysdeps/i386/fpu/s_asinhf.S (__asinhf): Likewise.
+	* sysdeps/i386/fpu/s_asinhl.S (__asinhl): Likewise.
+	* sysdeps/ieee754/dbl-64/s_asinh.c: Include <float.h>.
+	(__asinh): Force underflow exception for arguments with small
+	absolute value.
+	* sysdeps/ieee754/flt-32/s_asinhf.c: Include <float.h>.
+	(__asinhf): Force underflow exception for arguments with small
+	absolute value.
+	* sysdeps/ieee754/ldbl-128/s_asinhl.c: Include <float.h>.
+	(__asinhl): Force underflow exception for arguments with small
+	absolute value.
+	* sysdeps/ieee754/ldbl-128ibm/s_asinhl.c: Include <float.h>.
+	(__asinhl): Force underflow exception for arguments with small
+	absolute value.
+	* sysdeps/ieee754/ldbl-96/s_asinhl.c: Include <float.h>.
+	(__asinhl): Force underflow exception for arguments with small
+	absolute value.
+	* math/auto-libm-test-in: Do not mark underflow exceptions as
+	possibly missing for bug 16350.
+	* math/auto-libm-test-out: Regenerated.
+
 	* include/bits/ipc.h: Remove file.
 	* conform/Makefile (test-xfail-XPG3/sys/msg.h/conform): Remove
 	variable.