[xen staging] x86emul: fix SIMD test overriding of VBROADCASTS{S,D}

[patchbot@xxxxxxx]

commit 94334d854bd358bd1d9c61d5e3306e4d903b120b
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Mon Feb 14 10:09:15 2022 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Feb 14 10:09:15 2022 +0100

    x86emul: fix SIMD test overriding of VBROADCASTS{S,D}
    
    Despite their suffixes these aren't scalar instructions, and hence the
    128- and 256-bit EVEX forms may not be used without AVX512VL. Gcc11 ends
    up generating such instances for simd-sg.c.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 tools/tests/x86_emulator/simd.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/tests/x86_emulator/simd.h b/tools/tests/x86_emulator/simd.h
index 5b3b852a07..685d78d84b 100644
--- a/tools/tests/x86_emulator/simd.h
+++ b/tools/tests/x86_emulator/simd.h
@@ -250,7 +250,9 @@ asm ( ".macro override insn    \n\t"
 # define OVR_INT(n) OVR_BW(n); OVR_DQ(n)
 
 OVR_INT(broadcast);
+# ifdef __AVX512VL__
 OVR_SFP(broadcast);
+# endif
 OVR_SFP(comi);
 OVR_VFP(cvtdq2);
 OVR_INT(abs);
--
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