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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 - [MergeFuncs] Shufflevectors with different mask merged"
href="https://bugs.llvm.org/show_bug.cgi?id=45773">45773</a>
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<th>Summary</th>
<td>[MergeFuncs] Shufflevectors with different mask merged
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</tr>
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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
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Interprocedural Optimizations
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>nikita.ppv@gmail.com
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</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<pre>opt -mergefunc
define internal <2 x i32> @test1(<2 x i32> %v1, <2 x i32> %v2) {
%x = shufflevector <2 x i32> %v1, <2 x i32> %v2, <2 x i32> <i32 0, i32 1>
ret <2 x i32> %x
}
define internal <2 x i32> @test2(<2 x i32> %v1, <2 x i32> %v2) {
%x = shufflevector <2 x i32> %v1, <2 x i32> %v2, <2 x i32> <i32 1, i32 0>
ret <2 x i32> %x
}
define void @caller(<2 x i32> %v1, <2 x i32> %v2) {
call <2 x i32> @test1(<2 x i32> %v1, <2 x i32> %v2)
call <2 x i32> @test2(<2 x i32> %v1, <2 x i32> %v2)
ret void
}
Results in:
define internal <2 x i32> @test1(<2 x i32> %v1, <2 x i32> %v2) {
%x = shufflevector <2 x i32> %v1, <2 x i32> %v2, <2 x i32> <i32 0, i32 1>
ret <2 x i32> %x
}
define void @caller(<2 x i32> %v1, <2 x i32> %v2) {
%1 = call <2 x i32> @test1(<2 x i32> %v1, <2 x i32> %v2)
%2 = call <2 x i32> @test1(<2 x i32> %v1, <2 x i32> %v2)
ret void
}
This is due to the recent migration from an operand to special state.</pre>
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