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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - fast-isel cannot handle strlen"
href="http://llvm.org/bugs/show_bug.cgi?id=22277">22277</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>fast-isel cannot handle strlen
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</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>LLVM Codegen
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>rkotler@mips.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>~/llvmw/build/Deb~/llvmw/build/Debug+Asserts/bin/clang -O0 -mllvm
-fast-isel-verbose -mllvm -fast-isel strlen1.c
strlen1.c:12:3: warning: implicitly declaring library function 'printf' with
type 'int (const char *, ...)'
printf("%i\n", len);
^
strlen1.c:12:3: note: include the header <stdio.h> or explicitly provide a
declaration for 'printf'
FastISel missed call: %call = call i64 @strlen(i8* %0) #3
1 warning generated.
#include <string.h>
char *hello = "hello";
int len;
void foo() {
len = strlen(hello);
}
int main() {
foo();
printf("%i\n", len);
}</pre>
</div>
</p>
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