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authorWainer dos Santos Moschetta <wainersm@linux.vnet.ibm.com>2017-04-05 10:28:21 -0300
committerTulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>2017-04-05 10:28:41 -0300
commitff65c87443fe628d1e1e0106a5fcafc2104a5d7e (patch)
treefa559d38b01a60e8878418b9d08755546dc4833b /gshadow
parent18b6e2c86ce03c9be8ee0a53840fe5d533de22b3 (diff)
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Add page tests to string/test-strnlen.
May be tricky for otimized implementations to handle strings around
page boundary once, for instance, it is performed unaligned loads or
when maxlen is used as a hint for vectorized loops. The test cases
should unveil regression bugs on these cases.

To some extend do_random_tests in string/test-strnlen tests strings
placed at page end but it does not cover all cases. So this change
adds tests which consists of placing strings of varying sizes ending
at the page boundary. It also combines with different values of maxlen.

Tested on ppc64le and x86_64.

	* string/test-strnlen.c (do_page_tests): New function
	to check length of strings ending at the page boundary.
	(test_main): Added call to the do_page_tests function.
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