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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ARM isnormal(long double NaN) raises invalid"
href="https://bugs.llvm.org/show_bug.cgi?id=46811">46811</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>ARM isnormal(long double NaN) raises invalid
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>10.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tydeman@tybor.com
</td>
</tr>
<tr>
<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
</td>
</tr></table>
<p>
<div>
<pre>/*
* isnormal(long double NaN) raises invalid; it should not.
*/
#include <float.h>
#include <math.h>
#include <fenv.h>
#include <stdio.h>
int main(void){
long double ldnan = NAN;
long double ldinf = INFINITY;
int ex;
feclearexcept( FE_ALL_EXCEPT );
if( isnormal(ldnan) ){
(void)printf("<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Need to add product version numbers"
href="show_bug.cgi?id=1">bug 1</a>: NAN is not normal\n");
}
ex = fetestexcept( FE_ALL_EXCEPT );
if( 0 != ex ){
(void)printf("<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Customize Bugzilla to have some LLVM flavah"
href="show_bug.cgi?id=2">bug 2</a>: ex=%#x, FE_INVALID=%#x, ldnan=%Lg\n", ex, FE_INVALID,
ldnan);
}
feclearexcept( FE_ALL_EXCEPT );
if( isnormal(ldinf) ){
(void)printf("<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WORKSFORME - Linking two .a files explicitly on the command line fails"
href="show_bug.cgi?id=3">bug 3</a>: INFINITY is not normal\n");
}
ex = fetestexcept( FE_ALL_EXCEPT );
if( 0 != ex ){
(void)printf("<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - LLC Produced executables randomly crash"
href="show_bug.cgi?id=4">bug 4</a>: ex=%#x, FE_INVALID=%#x, ldinf=%Lg\n", ex, FE_INVALID,
ldinf);
}
return 0;
}
I am not sure if this is a compiler built-in or part of the math library.</pre>
</div>
</p>
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