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authorJoseph Myers <joseph@codesourcery.com>2016-06-09 18:04:30 +0000
committerJoseph Myers <joseph@codesourcery.com>2016-06-09 18:04:30 +0000
commitf00faa4a43706d85ad8d4d2c970d3f52f0f63bfb (patch)
tree3ab8e31041ab2f0cd87b4b1501c1570a10a2d7dd /sysdeps/unix/sysv/linux
parentb7519f61fe2c57981c69c0c65996968b9a4d9b62 (diff)
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Fix i386/x86_64 log2l (sNaN) (bug 20235).
The i386/x86_64 versions of log2l return sNaN for sNaN input.  This
patch fixes them to add NaN inputs to themselves so that qNaN is
returned in this case.

Tested for x86_64 and x86.

	[BZ #20235]
	* sysdeps/i386/fpu/e_log2l.S (__ieee754_log2l): Add NaN input to
	itself.
	* sysdeps/x86_64/fpu/e_log2l.S (__ieee754_log2l): Likewise.
	* math/libm-test.inc (log2_test_data): Add sNaN tests.
Diffstat (limited to 'sysdeps/unix/sysv/linux')
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