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re PR tree-optimization/52904 (-Wstrict-overflow false alarm with bounded loop)

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gcc/testsuite
2014-08-18  Kugan Vivekanandarajah  <kuganv@linaro.org>

	PR tree-optimization/52904
	* gcc.dg/pr52904.c: New test.

From-SVN: r214084
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Kugan Vivekanandarajah 2014-08-18 06:28:35 +00:00 committed by Kugan Vivekanandarajah
parent 86cde5ecfd
commit 495e77b35b
2 changed files with 25 additions and 0 deletions
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5
gcc/testsuite/ChangeLog
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2014-08-18 Kugan Vivekanandarajah <kuganv@linaro.org>
PR tree-optimization/52904
* gcc.dg/pr52904.c: New test.
2014-08-17 Tobias Burnus <burnus@net-b.de>
* gfortran.dg/finalize_27.f90: New.

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gcc/testsuite/gcc.dg/pr52904.c Normal file
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/* { dg-do compile } */
/* { dg-options "-Wstrict-overflow -O2" } */
extern int foo (int);
int
wait_reading_process_output (void)
{
int nfds = 0;
int channel;
for (channel = 0; channel < 1024; ++channel)
{
if (foo (channel))
nfds++;
}
if (nfds < 0) /* { dg-bogus "assuming signed overflow does not occur" } */
return 1;
return 0;
}