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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - llvm-objdump cannot identify the arm jump instruction."
href="https://bugs.llvm.org/show_bug.cgi?id=46701">46701</a>
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<th>Summary</th>
<td>llvm-objdump cannot identify the arm jump instruction.
</td>
</tr>
<tr>
<th>Product</th>
<td>tools
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</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>llvm-objdump
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>2077213809@qq.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>I have the following code
extern void *memcpy(void *dst, const void *src, unsigned int size);
void test(char *a, const char *b, int c)
{
memcpy(a, b, c);
}
Compiling
clang -meabi gnu --target=arm-none-eabi -Oz -c test.c
disassembly
llvm-objdump -d test.o
00000000 <test>:
0: fe ff ff ea b #-8 <test>
the b instruction is not correct
when use gnu binutils, it's correct
arm-none-eabi-objdump -d test.o
00000000 <test>:
0: eafffffe b 0 <memcpy></pre>
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