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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [Coverage] Assertion when using _Pragma("unroll()")"
href="https://bugs.llvm.org/show_bug.cgi?id=40971">40971</a>
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<th>Summary</th>
<td>[Coverage] Assertion when using _Pragma("unroll()")
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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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
</td>
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<th>Component</th>
<td>LLVM Codegen
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>Wolfgang_Pieb@playstation.sony.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>// Given the following source:
typedef float float4 __attribute__((ext_vector_type(4)));
typedef float4 float4Matrix[3][3];
void foo()
{
float4Matrix K;
for (int i=0; i<3; i++)
_Pragma("unroll(3)")
for (int j=0; j<=i; j++) K[i][j]=0;
}
// End of source
when compiled with
clang -cc1 -emit-obj -target-cpu btver2 -fprofile-instrument=clang
-fcoverage-mapping <file>
gets the following compile time error:
fatal error: error in backend: File exit not handled before popRegions
When the _Pragma() is removed the compilation succeeds.
This appears to have been introduced by r229748. Note that to reproduce with
that version you have to substitute '-fprofile-instrument=clang' with
'-fprofile-instr-generate'.</pre>
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