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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 --- - -inline will not inline a trivial function containing only unreachable"
href="https://llvm.org/bugs/show_bug.cgi?id=24851">24851</a>
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<th>Summary</th>
<td>-inline will not inline a trivial function containing only unreachable
</td>
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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>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Interprocedural Optimizations
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>david.majnemer@gmail.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>consider:
$ cat t.ll
define void @f() {
entry:
tail call void @g()
unreachable
}
define void @g() {
entry:
unreachable
}
$ opt -inline t.ll -S -debug
Inliner visiting SCC: g: 0 call sites.
Inliner visiting SCC: f: 1 call sites.
Analyzing call of g...
NumConstantArgs: 0
NumConstantOffsetPtrArgs: 0
NumAllocaArgs: 0
NumConstantPtrCmps: 0
NumConstantPtrDiffs: 0
NumInstructionsSimplified: 1
NumInstructions: 1
SROACostSavings: 0
SROACostSavingsLost: 0
ContainsNoDuplicateCall: 0
Cost: 0
Threshold: -337
NOT Inlining: cost=0, thres=-337, Call: tail call void @g()
Inliner visiting SCC: INDIRECTNODE: 0 call sites.
; ModuleID = 't.ll'
define void @f() {
entry:
tail call void @g()
unreachable
}
define void @g() {
entry:
unreachable
}</pre>
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