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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Is it a sign of miscompilation?"
href="https://llvm.org/bugs/show_bug.cgi?id=26981">26981</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Is it a sign of miscompilation?
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>3.8
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</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: ARM
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tulipawn@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>After doing a Release+Assertions build on ARM with gcc-4.9.3 I'm seeing the
following error during the very first part of stage1, bootstrapping Rust:
src/llvm/lib/IR/Attributes.cpp:876: llvm::AttributeSet
llvm::AttributeSet::removeAttributes(llvm::LLVMContext&, unsigned int,
llvm::AttributeSet) const: Assertion `!Attrs.hasAttribute(Index,
Attribute::Alignment) && "Attempt to change alignment!"' failed.
(gdb) bt
#0 __libc_do_syscall () at
../ports/sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:44
#1 0xb6a30f0e in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#2 0xb6a33766 in __GI_abort () at abort.c:89
#3 0xb6a2c150 in __assert_fail_base (fmt=0x1 <error: Cannot access memory at
address 0x1>,
assertion=0xb41c8e88 "!Attrs.hasAttribute(Index, Attribute::Alignment) &&
\"Attempt to change alignment!\"", assertion@entry=0x0,
file=0xb41c8434 "/src/llvm/lib/IR/Attributes.cpp", file@entry=0xb244f2a0
"\001", line=876, line@entry=3064918188,
function=function@entry=0xb4c744f0 "llvm::AttributeSet
llvm::AttributeSet::removeAttributes(llvm::LLVMContext&, unsigned int,
llvm::AttributeSet) const") at assert.c:92
#4 0xb6a2c1e6 in __GI___assert_fail (assertion=0x0, file=0xb244f2a0 "\001",
line=3064918188,
function=0xb4c744f0 "llvm::AttributeSet
llvm::AttributeSet::removeAttributes(llvm::LLVMContext&, unsigned int,
llvm::AttributeSet) const") at assert.c:101
#5 0xb3dc95cc in llvm::AttributeSet::removeAttributes(llvm::LLVMContext&,
unsigned int, llvm::AttributeSet) const ()
from
/arm-unknown-linux-gnueabihf/stage1/bin/../lib/librustc_llvm-9026086f.so
#6 0xb3e09170 in LLVMRemoveFunctionAttr ()
from
/arm-unknown-linux-gnueabihf/stage1/bin/../lib/librustc_llvm-9026086f.so
#7 0xb628e5ec in trans::attributes::from_fn_attrs::h75cc605b937fa118Rlh ()
from
/arm-unknown-linux-gnueabihf/stage1/bin/../lib/librustc_trans-9026086f.so
#8 0xb6258b7c in ?? ()
from
/arm-unknown-linux-gnueabihf/stage1/bin/../lib/librustc_trans-9026086f.so</pre>
</div>
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