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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 - [llvm-cov] wrong coverage after executing exit(0) statement"
href="https://bugs.llvm.org/show_bug.cgi?id=51003">51003</a>
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<th>Summary</th>
<td>[llvm-cov] wrong coverage after executing exit(0) statement
</td>
</tr>
<tr>
<th>Product</th>
<td>Runtime Libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>12.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>libprofile library
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>byone.heng@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>$./clang -v
clang version 12.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
b6c8feb29fce39121884f7e08ec6eb0f58da3fb7)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/x/project/llvm-project/build/install/bin/.
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.5.0
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$cat test.c
const volatile long int true_var = 1;
volatile signed char false_var = 0;
extern void exit(int);
extern void abort(void);
int a[10];
int foo()
{
exit (0);
return 0;
}
int main()
{
if (&a[foo()])
abort ();
return 0;
}
$gcc -O0 --coverage test.c;./a.out;gcov test;cat test.c.gcov
1| |/* { dg-do run } */
2| |
3| |const volatile long int true_var = 1;
4| |volatile signed char false_var = 0;
5| |
6| |extern void exit(int);
7| |extern void abort(void);
8| |int a[10];
9| |int foo()
10| 1|{
11| 1| exit (0);
12| 0| return 0;
13| 1|}
14| |int main()
15| 1|{
16| 1| if (&a[foo()])
17| 0| abort ();
18| 1| return 0;
19| 1|}
>From my perspective, the function exit(0) in line 11 has been executed, so the
program should terminate, line 18 should not be executed.</pre>
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