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Revert "host/i386: assume presence of SSE2"

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This reverts commit b18236897c.
The x86-64 instruction set can now be tuned down to x86-64 v1
or i386 Pentium Pro.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2024-06-18 17:34:48 +02:00
parent 39a367a42a
commit 87b8bde55d
3 changed files with 5 additions and 2 deletions
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1
util/cpuinfo-i386.c
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@ -34,6 +34,7 @@ unsigned __attribute__((constructor)) cpuinfo_init(void)
if (max >= 1) {
__cpuid(1, a, b, c, d);
info |= (d & bit_SSE2 ? CPUINFO_SSE2 : 0);
info |= (c & bit_MOVBE ? CPUINFO_MOVBE : 0);
info |= (c & bit_POPCNT ? CPUINFO_POPCNT : 0);
info |= (c & bit_PCLMUL ? CPUINFO_PCLMUL : 0);