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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - DeadArgElim does not generate debug info for insertval/extractval instrs"
href="https://bugs.llvm.org/show_bug.cgi?id=46350">46350</a>
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<th>Summary</th>
<td>DeadArgElim does not generate debug info for insertval/extractval instrs
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>DebugInfo
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>djordje.todorovic@syrmia.com
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<th>CC</th>
<td>jdevlieghere@apple.com, keith.walker@arm.com, llvm-bugs@lists.llvm.org, paul_robinson@playstation.sony.com
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<p>
<div>
<pre>NOTE: This is found by the LLVM DI Checker utility
(<a href="https://github.com/djolertrk/llvm-di-checker">https://github.com/djolertrk/llvm-di-checker</a>). I am preparing an RFC, so this
will be used as a reference in the proposal.
Basically, an example as:
define internal { i32 } @fn1() !dbg !4 {
entry:
unreachable
}
define void @fn2() personality i32 (i32)* undef !dbg !8 {
entry:
%tmp2 = invoke { i32 } @fn1()
to label %bb3 unwind label %bb4, !dbg !15
bb3:
%tmp3 = phi { i32 } [ %tmp2, %entry ], !dbg !15
unreachable
bb4:
%tmp4 = landingpad { i8*, i32 }
cleanup, !dbg !15
unreachable
}
will end up (after $ opt -deadargelim -S) having the 'insertvalue' with no
debug location attached after the DeadArgElim pass.
Proposed fix: <a href="https://reviews.llvm.org/D81939">https://reviews.llvm.org/D81939</a></pre>
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