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target/sparc: Implement FPCMPEQ8, FPCMPNE8, FPCMPULE8, FPCMPUGT8

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Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-11-04 16:53:28 -07:00
parent 0d1d3aaf64
commit 669e077437
4 changed files with 58 additions and 0 deletions
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40
target/sparc/vis_helper.c
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@ -238,6 +238,46 @@ VIS_CMPHELPER(helper_fcmpeq, FCMPEQ)
VIS_CMPHELPER(helper_fcmple, FCMPLE)
VIS_CMPHELPER(helper_fcmpne, FCMPNE)
uint64_t helper_fcmpeq8(uint64_t src1, uint64_t src2)
{
uint64_t a = src1 ^ src2;
uint64_t m = 0x7f7f7f7f7f7f7f7fULL;
uint64_t c = ~(((a & m) + m) | a | m);
/* a.......b.......c.......d.......e.......f.......g.......h....... */
c |= c << 7;
/* ab......bc......cd......de......ef......fg......gh......h....... */
c |= c << 14;
/* abcd....bcde....cdef....defg....efgh....fgh.....gh......h....... */
c |= c << 28;
/* abcdefghbcdefgh.cdefgh..defgh...efgh....fgh.....gh......h....... */
return c >> 56;
}
uint64_t helper_fcmpne8(uint64_t src1, uint64_t src2)
{
return helper_fcmpeq8(src1, src2) ^ 0xff;
}
uint64_t helper_fcmpule8(uint64_t src1, uint64_t src2)
{
VIS64 s1, s2;
uint64_t r = 0;
s1.ll = src1;
s2.ll = src2;
for (int i = 0; i < 8; ++i) {
r |= (s1.VIS_B64(i) <= s2.VIS_B64(i)) << i;
}
return r;
}
uint64_t helper_fcmpugt8(uint64_t src1, uint64_t src2)
{
return helper_fcmpule8(src1, src2) ^ 0xff;
}
uint64_t helper_pdist(uint64_t sum, uint64_t src1, uint64_t src2)
{
int i;