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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - "fragment is larger than or outside of variable" error in Windows selfhost build"
href="https://bugs.llvm.org/show_bug.cgi?id=35447">35447</a>
</td>
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<tr>
<th>Summary</th>
<td>"fragment is larger than or outside of variable" error in Windows selfhost build
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</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>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>greg.bedwell@sony.com
</td>
</tr>
<tr>
<th>CC</th>
<td>aprantl@apple.com, llvm-bugs@lists.llvm.org, rnk@google.com, russell_gallop@sn.scee.net
</td>
</tr></table>
<p>
<div>
<pre>The fix from <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - "fragment covers entire variable" error in Windows selfhost build"
href="show_bug.cgi?id=35416">Bug 35416</a> resolved that issue, however it seems that the file in
question (lib/Support/FileOutputBuffer.cpp) is still refusing to compile with
TOT clang.
Here's another source-level reduced testcase (it only looks subtly different to
the one from <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - "fragment covers entire variable" error in Windows selfhost build"
href="show_bug.cgi?id=35416">Bug 35416</a>, so hopefully the fix is too):
$ type 1.cpp
// ======================================================
struct A {
int _Myval2;
A() : _Myval2() {}
};
struct B {
double buffer[];
};
struct C {
C(int) {}
A _Mypair;
};
int getPtr();
struct D {
C takePayload() {
C Tmp(getPtr());
return Tmp;
}
} Dd;
void *operator new(size_t, void *);
struct F {
F(D Err) : HasError() {
C *e = (C *)(ErrorStorage.buffer);
new (e) C(Err.takePayload());
}
B ErrorStorage;
bool HasError;
};
F fn2() { return Dd; }
void fn3() { fn2(); }
// ======================================================
$ clang.exe -target x86_64-windows-pc-msvc -c -w -g -O2 1.cpp
fragment is larger than or outside of variable
call void @llvm.dbg.value(metadata i8 0, metadata !72, metadata
!DIExpression(DW_OP_LLVM_fragment, 64, 8)), !dbg !105
!72 = !DILocalVariable(name: "Tmp", scope: !70, file: !3, line: 16, type: !7)
fragment is larger than or outside of variable
call void @llvm.dbg.value(metadata i8 0, metadata !72, metadata
!DIExpression(DW_OP_LLVM_fragment, 64, 8)), !dbg !105
!72 = !DILocalVariable(name: "Tmp", scope: !70, file: !3, line: 16, type: !7)
fatal error: error in backend: Broken module found, compilation aborted!
clang.exe: error: clang frontend command failed with exit code 70 (use -v to
see invocation)
clang version 6.0.0 (trunk 319007) (llvm/trunk 319177)
Target: x86_64-pc-windows-msvc
Thread model: posix
InstalledDir:
C:\work\public-git\upstream-llvm\build-vs2015-ps4-master\Release\bin
clang.exe: note: diagnostic msg: PLEASE submit a bug report to
<a href="http://llvm.org/bugs/">http://llvm.org/bugs/</a> and include the crash backtrace, preprocessed source, and
associated run script.
clang.exe: note: diagnostic msg:
********************</pre>
</div>
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