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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 - Invalid runtime error"
href="https://bugs.llvm.org/show_bug.cgi?id=36343">36343</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Invalid runtime error
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>5.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>-New Bugs
</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>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>/*
* Invalid runtime error: load of bad bool value.
* Using clang 5.0.1-1 on 64-bit Fedora Linux 27 on Intel core i5
# flags common to both compiler and linker
export CLFLAGS="-fsanitize=memory -fsanitize=undefined
-fno-sanitize=float-cast-overflow -fno-sanitize=float-divide-by-zero"
# flags for compiler
export CFLAGS="-std=c1x -m64 -mfpmath=sse -msse2 -O0 -fno-fast-math -pedantic
-fmath-errno"
*/
#include <stdbool.h> /* bool */
#include <complex.h> /* I */
static float complex f2cx;
static struct bit2 {
unsigned int uibf : 7;
signed int sibf : 7;
/*plain*/ int pibf : 7;
bool bobf : 1;
unsigned char after[16];
} bits
= {1u,1,1,(bool)1,{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
int main(void){
struct bit2 res;
res.bobf = (bool)1;
f2cx = 1.5f + I*1.5f;
res.bobf = bits.bobf += f2cx; /* incorrect error here */
return 0;
}</pre>
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