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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 /math/auto-libm-test-in
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 'math/auto-libm-test-in')
-rw-r--r--math/auto-libm-test-in13
1 files changed, 6 insertions, 7 deletions
diff --git a/math/auto-libm-test-in b/math/auto-libm-test-in
index 7546cca98b..6ec4bc69af 100644
--- a/math/auto-libm-test-in
+++ b/math/auto-libm-test-in
@@ -218,13 +218,12 @@ asinh 0x7.d8e5a8p-4
 asinh -0x7.63a06320c42e4p-4
 asinh 0x6.f4a93p-4
 asinh -0x7.88bcc8p-4
-# Bug 16350: underflow exception may be missing.
-asinh 0x1p-500 missing-underflow
-asinh 0x1p-5000 missing-underflow
-asinh min missing-underflow
-asinh -min missing-underflow
-asinh min_subnorm missing-underflow
-asinh -min_subnorm missing-underflow
+asinh 0x1p-500
+asinh 0x1p-5000
+asinh min
+asinh -min
+asinh min_subnorm
+asinh -min_subnorm
 asinh max no-test-inline
 asinh -max no-test-inline