<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [M68k] Code selection failed with string length greater than or equal to 4"
href="https://bugs.llvm.org/show_bug.cgi?id=52516">52516</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[M68k] Code selection failed with string length greater than or equal to 4
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</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>Backend: M68k
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>t104360003@ntut.org.tw
</td>
</tr>
<tr>
<th>CC</th>
<td>glaubitz@physik.fu-berlin.de, llvm-bugs@lists.llvm.org, minyihh@uci.edu
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=25450" name="attach_25450" title="Preprocessed source">attachment 25450</a> <a href="attachment.cgi?id=25450&action=edit" title="Preprocessed source">[details]</a></span>
Preprocessed source
This is the code that triggered this error:
void test(char *s)
{
}
int main()
{
char s[] = "123";
test(s);
return 0;
}
This is the error message:
$ clang -ccc-gcc-name linux-gnu-gcc --target=m68k tmp.c -o tmp
fatal error: error in backend: Cannot select: t47: i32,ch =
load<(dereferenceable load (s8) from `i8* getelementptr inbounds ([4 x i8], [4
x i8]* @__const.main.s, i32 0, i32 0)` + 1), zext from i8> t4, t46, undef:i32
t46: i32 = add nuw t34, Constant:i32<1>
t34: i32 = M68kISD::WrapperPC TargetGlobalAddress:i32<[4 x i8]*
@__const.main.s> 0
t33: i32 = TargetGlobalAddress<[4 x i8]* @__const.main.s> 0
t36: i32 = Constant<1>
t3: i32 = undef
In function: main
clang-14: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 14.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
7f7cab6bb1d48b53e1fa9ab5a4fd7bcf7f00f19b)
Target: m68k
Thread model: posix
InstalledDir: /home/sheng/project/compiler/llvm_m68k/build/bin
clang-14: note: diagnostic msg:
---
Here's my environment:
$ clang-v
clang version 14.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
7f7cab6bb1d48b53e1fa9ab5a4fd7bcf7f00f19b)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/sheng/project/compiler/llvm_m68k/build/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Candidate multilib: .;@m64
Selected multilib: .;@m64</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>