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target-ppc: Use ctpop helper

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Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2016-11-21 11:58:25 +01:00
parent de26a584d2
commit 7977000220
3 changed files with 9 additions and 18 deletions
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18
target/ppc/int_helper.c
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@ -272,6 +272,7 @@ target_ulong helper_srad(CPUPPCState *env, target_ulong value,
#if defined(TARGET_PPC64)
target_ulong helper_popcntb(target_ulong val)
{
/* Note that we don't fold past bytes */
val = (val & 0x5555555555555555ULL) + ((val >> 1) &
0x5555555555555555ULL);
val = (val & 0x3333333333333333ULL) + ((val >> 2) &
@ -283,6 +284,7 @@ target_ulong helper_popcntb(target_ulong val)
target_ulong helper_popcntw(target_ulong val)
{
/* Note that we don't fold past words. */
val = (val & 0x5555555555555555ULL) + ((val >> 1) &
0x5555555555555555ULL);
val = (val & 0x3333333333333333ULL) + ((val >> 2) &
@ -295,29 +297,15 @@ target_ulong helper_popcntw(target_ulong val)
0x0000ffff0000ffffULL);
return val;
}
target_ulong helper_popcntd(target_ulong val)
{
return ctpop64(val);
}
#else
target_ulong helper_popcntb(target_ulong val)
{
/* Note that we don't fold past bytes */
val = (val & 0x55555555) + ((val >> 1) & 0x55555555);
val = (val & 0x33333333) + ((val >> 2) & 0x33333333);
val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f);
return val;
}
target_ulong helper_popcntw(target_ulong val)
{
val = (val & 0x55555555) + ((val >> 1) & 0x55555555);
val = (val & 0x33333333) + ((val >> 2) & 0x33333333);
val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f);
val = (val & 0x00ff00ff) + ((val >> 8) & 0x00ff00ff);
val = (val & 0x0000ffff) + ((val >> 16) & 0x0000ffff);
return val;
}
#endif
/*****************************************************************************/