Date: Thu, 7 Mar 2024 13:52:42 +0100 From: Paul Floyd <pjfloyd@wanadoo.fr> To: freebsd-arm@FreeBSD.org Subject: clang inline asm Message-ID: <c46f534a-7fc6-4660-8711-1cf683e9dd14@wanadoo.fr>
next in thread | raw e-mail | index | archive | help
Hi
I'm trying to port some tests from gcc to clang arm64.
I've found fixes for most of the things (though I haven't checked that
they still build with gcc).
I'm a bit stuck on one:
TESTINST3("add x21,x22,x23,uxtb #0", NN0, NN1, x21,x22,x23,0);
clang says
armv8-a clang 17.0.1 - cached
Output of armv8-a clang 17.0.1 (Compiler #1)
<source>:3:8: error: expected 'sxtx' 'uxtx' or 'lsl' with optional
integer in range [0, 4]
3 | asm("add x21,x22,x23,uxtb #0");
| ^
<inline asm>:1:18: note: instantiated into assembly here
1 | add x21,x22,x23,uxtb #0
https://godbolt.org/z/4j7q7r8M4
Is this a limitation of clang arm64?
The full source is here
https://github.com/paulfloyd/freebsdarm64_valgrind/blob/freebsdarm64_valgrind/none/tests/arm64/integer.c
A+
Paul
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?c46f534a-7fc6-4660-8711-1cf683e9dd14>