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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Incorrect codegen for AArch64 -O0 -mllvm -global-isel"
href="https://bugs.llvm.org/show_bug.cgi?id=32733">32733</a>
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<th>Summary</th>
<td>Incorrect codegen for AArch64 -O0 -mllvm -global-isel
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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>All
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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>GlobalISel
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>kristof.beyls@gmail.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<pre>The following program miscompiles with globalisel:
extern int printf(const char *, ...);
int c = 0;
int *d = 0;
int main() {
printf("checksum = %x\n", ~(&c == d) ^ 1);
}
It should print "checksum = fffffffe", but instead prints "checksum = 1".
Command line used to reproduce this: clang -O0 t.c -mllvm -global-isel</pre>
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