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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [WinEH] assertion when inlining function into cleanuppad"
href="https://llvm.org/bugs/show_bug.cgi?id=26263">26263</a>
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<th>Summary</th>
<td>[WinEH] assertion when inlining function into cleanuppad
</td>
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<th>Product</th>
<td>new-bugs
</td>
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<th>Version</th>
<td>3.8
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
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<th>Reporter</th>
<td>r.sagitario@gmx.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=15696" name="attach_15696" title="original IR before reduction by bugpoint">attachment 15696</a> <a href="attachment.cgi?id=15696&action=edit" title="original IR before reduction by bugpoint">[details]</a></span>
original IR before reduction by bugpoint
The attached IR produces an assertion when optimized with -O2:
Assertion failed: isa<X>(Val) && "cast<Ty>() argument of incompatible type!",
file C:\s\d\ldc\llvm\include\llvm/Support/Casting.h, line 223
bugpoint reduces this to:
; ModuleID = 'bugpoint-reduced-simplified.bc'
target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
target triple = "i386-pc-windows-msvc"
define x86_stdcallcc void @"\01__D5sdt123S126__dtorMFZv"() {
ret void
}
define x86_stdcallcc void @"\01__D5sdt125foo12FS5sdt123S12Zv"() {
ret void
}
define x86_stdcallcc void @"\01__D5sdt126test12FZv"() personality i32 (i8*,
i8*, i8*, i8*)* @__CxxFrameHandler3 {
invoke x86_stdcallcc void @"\01__D5sdt125foo12FS5sdt123S12Zv"()
to label %postinvoke unwind label %cleanuppad
postinvoke: ; preds = %0
br i1 undef, label %assertPassed, label %assertFailed
cleanuppad: ; preds = %0
%1 = cleanuppad within none []
br i1 undef, label %finally1, label %cleanupret
finally1: ; preds = %cleanuppad
br label %cleanupret
cleanupret: ; preds = %finally1,
%cleanuppad
cleanupret from %1 unwind to caller
assertPassed: ; preds = %postinvoke
ret void
assertFailed: ; preds = %postinvoke
unreachable
}
declare i32 @__CxxFrameHandler3(i8*, i8*, i8*, i8*)
!llvm.ident = !{!0}
!0 = !{!"ldc version 1598c4"}
and blames the -prune-eh pass. "opt -prune-eh" prints:
CleanupReturnInst needs to be provided a CleanupPad
cleanupret from undef unwind to caller
token undef
LLVM ERROR: Broken function found, compilation aborted!</pre>
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