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ARM jit: Prepare for joining vrot ops

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This commit is contained in:
Henrik Rydgard 2014-12-07 11:58:19 +01:00
parent 37413f8119
commit c2503b1406
2 changed files with 29 additions and 23 deletions
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51
Core/MIPS/ARM/ArmCompVFPU.cpp
View File

@ -1935,6 +1935,33 @@ namespace MIPSComp
return sincos.out;
}
void Jit::CompVrotShuffle(u8 *dregs, int imm, VectorSize sz, bool negSin) {
int n = GetNumVectorElements(sz);
char what[4] = {'0', '0', '0', '0'};
if (((imm >> 2) & 3) == (imm & 3)) {
for (int i = 0; i < 4; i++)
what[i] = 'S';
}
what[(imm >> 2) & 3] = 'S';
what[imm & 3] = 'C';
fpr.MapRegsAndSpillLockV(dregs, sz, MAP_DIRTY | MAP_NOINIT);
for (int i = 0; i < n; i++) {
switch (what[i]) {
case 'C': VMOV(fpr.V(dregs[i]), S1); break;
case 'S': VMOV(fpr.V(dregs[i]), S0); break;
case '0':
{
MOVI2F(fpr.V(dregs[i]), 0.0f, SCRATCHREG1);
break;
}
default:
ERROR_LOG(JIT, "Bad what in vrot");
break;
}
}
}
// Very heavily used by FF:CC. Should be replaced by a fast approximation instead of
// calling the math library.
// Apparently this may not work on hardfp. I don't think we have any platforms using this though.
@ -1977,30 +2004,8 @@ namespace MIPSComp
// Returns D0 on hardfp and R0,R1 on softfp due to union joining the two floats
VMOV(D0, R0, R1);
#endif
CompVrotShuffle(dregs, imm, sz, negSin);
char what[4] = {'0', '0', '0', '0'};
if (((imm >> 2) & 3) == (imm & 3)) {
for (int i = 0; i < 4; i++)
what[i] = 'S';
}
what[(imm >> 2) & 3] = 'S';
what[imm & 3] = 'C';
fpr.MapRegsAndSpillLockV(dregs, sz, MAP_DIRTY | MAP_NOINIT);
for (int i = 0; i < n; i++) {
switch (what[i]) {
case 'C': VMOV(fpr.V(dregs[i]), S1); break;
case 'S': VMOV(fpr.V(dregs[i]), S0); break;
case '0':
{
MOVI2F(fpr.V(dregs[i]), 0.0f, SCRATCHREG1);
break;
}
default:
ERROR_LOG(JIT, "Bad what in vrot");
break;
}
}
fpr.ReleaseSpillLocksAndDiscardTemps();
}

1
Core/MIPS/ARM/ArmJit.h
View File

@ -226,6 +226,7 @@ private:
void CompShiftImm(MIPSOpcode op, ArmGen::ShiftType shiftType, int sa);
void CompShiftVar(MIPSOpcode op, ArmGen::ShiftType shiftType);
void CompVrotShuffle(u8 *dregs, int imm, VectorSize sz, bool negSin);
void ApplyPrefixST(u8 *vregs, u32 prefix, VectorSize sz);
void ApplyPrefixD(const u8 *vregs, VectorSize sz);