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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 - SVE ACLE prefetch functions in C++ result in compilation error"
href="https://bugs.llvm.org/show_bug.cgi?id=49797">49797</a>
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<th>Summary</th>
<td>SVE ACLE prefetch functions in C++ result in compilation error
</td>
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<th>Product</th>
<td>clang
</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>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>utsumi.yuichiro@fujitsu.com
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<p>
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<pre>When compiling the C++ program including SVE ACLE prefetch function e.g.
svprfb,
the following error occurs.
---------------------------------------------
$ cat test.cpp
#include "arm_sve.h"
void test(const void *a, svbool_t pg) {
svprfb(pg, a, SV_PLDL1KEEP);
}
$ clang++ -mcpu=generic+sve -S test.cpp
test.cpp:4:14: error: cannot initialize a parameter of type 'const signed char
*' with an lvalue of type 'const void *'
svprfb(pg, a, SV_PLDL1KEEP);
^
/work03/lang/utsumi/install_main/lib64/clang/13.0.0/include/arm_sve.h:3741:42:
note: expanded from macro 'svprfb'
#define svprfb(...) __builtin_sve_svprfb(__VA_ARGS__)
^~~~~~~~~~~
1 error generated.
---------------------------------------------
In "Arm C Language Extensions for SVE (Version 00bet6)" downloadble from
<a href="https://developer.arm.com/documentation/100987/latest">https://developer.arm.com/documentation/100987/latest</a> ,
the parameters of svprfb is as follows.
---------------------------------------------
void svprfb(svbool_t pg, const void *base, enum svprfop op)
---------------------------------------------</pre>
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