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Removing REM, adding MUL_HI, renaming MULADD/MULSUB.

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This commit is contained in:
Ben Vanik
2014-01-06 22:17:49 -08:00
parent 3dcbcce38d
commit d1528e24bb
10 changed files with 315 additions and 114 deletions
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53
src/alloy/frontend/ppc/ppc_emit_alu.cc
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@@ -212,8 +212,8 @@ XEEMITTER(divdux, 0x7C000392, XO )(PPCHIRBuilder& f, InstrData& i) {
// TODO(benvanik): check if zero
// if OE=1, set XER[OV] = 1
// else skip the divide
Value* v = f.Div(f.LoadGPR(i.XO.RA), divisor);
f.StoreGPR(i.XO.RT, v);
Value* v = f.Div(f.LoadGPR(i.XO.RA), divisor, ARITHMETIC_UNSIGNED);
f.StoreGPR(i.XO.RT, v);
if (i.XO.OE) {
// If we are OE=1 we need to clear the overflow bit.
//e.update_xer_with_overflow(e.get_uint64(0));
@@ -240,7 +240,7 @@ XEEMITTER(divwx, 0x7C0003D6, XO )(PPCHIRBuilder& f, InstrData& i) {
// if OE=1, set XER[OV] = 1
// else skip the divide
Value* v = f.Div(f.Truncate(f.LoadGPR(i.XO.RA), INT32_TYPE), divisor);
v = f.ZeroExtend(v, INT64_TYPE);
v = f.SignExtend(v, INT64_TYPE);
f.StoreGPR(i.XO.RT, v);
if (i.XO.OE) {
// If we are OE=1 we need to clear the overflow bit.
@@ -267,7 +267,8 @@ XEEMITTER(divwux, 0x7C000396, XO )(PPCHIRBuilder& f, InstrData& i) {
// TODO(benvanik): check if zero
// if OE=1, set XER[OV] = 1
// else skip the divide
Value* v = f.Div(f.Truncate(f.LoadGPR(i.XO.RA), INT32_TYPE), divisor);
Value* v = f.Div(f.Truncate(f.LoadGPR(i.XO.RA), INT32_TYPE), divisor,
ARITHMETIC_UNSIGNED);
v = f.ZeroExtend(v, INT64_TYPE);
f.StoreGPR(i.XO.RT, v);
if (i.XO.OE) {
@@ -283,13 +284,34 @@ XEEMITTER(divwux, 0x7C000396, XO )(PPCHIRBuilder& f, InstrData& i) {
}
XEEMITTER(mulhdx, 0x7C000092, XO )(PPCHIRBuilder& f, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// RT <- ((RA) × (RB) as 128)[0:63]
if (i.XO.OE) {
// With XER update.
XEINSTRNOTIMPLEMENTED();
return 1;
}
Value* v = f.MulHi(f.LoadGPR(i.XO.RA), f.LoadGPR(i.XO.RB));
f.StoreGPR(i.XO.RT, v);
if (i.XO.Rc) {
f.UpdateCR(0, v);
}
return 0;
}
XEEMITTER(mulhdux, 0x7C000012, XO )(PPCHIRBuilder& f, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// RT <- ((RA) × (RB) as 128)[0:63]
if (i.XO.OE) {
// With XER update.
XEINSTRNOTIMPLEMENTED();
return 1;
}
Value* v = f.MulHi(
f.LoadGPR(i.XO.RA), f.LoadGPR(i.XO.RB), ARITHMETIC_UNSIGNED);
f.StoreGPR(i.XO.RT, v);
if (i.XO.Rc) {
f.UpdateCR(0, v);
}
return 0;
}
XEEMITTER(mulhwx, 0x7C000096, XO )(PPCHIRBuilder& f, InstrData& i) {
@@ -299,10 +321,9 @@ XEEMITTER(mulhwx, 0x7C000096, XO )(PPCHIRBuilder& f, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
}
Value* v = f.Mul(
f.ZeroExtend(f.Truncate(f.LoadGPR(i.XO.RA), INT32_TYPE), INT64_TYPE),
f.ZeroExtend(f.Truncate(f.LoadGPR(i.XO.RB), INT32_TYPE), INT64_TYPE));
v = f.Shr(v, 32);
Value* v = f.SignExtend(f.MulHi(
f.Truncate(f.LoadGPR(i.XO.RA), INT32_TYPE),
f.Truncate(f.LoadGPR(i.XO.RB), INT32_TYPE)), INT64_TYPE);
f.StoreGPR(i.XO.RT, v);
if (i.XO.Rc) {
f.UpdateCR(0, v);
@@ -317,10 +338,10 @@ XEEMITTER(mulhwux, 0x7C000016, XO )(PPCHIRBuilder& f, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
}
Value* v = f.Mul(
f.ZeroExtend(f.Truncate(f.LoadGPR(i.XO.RA), INT32_TYPE), INT64_TYPE),
f.ZeroExtend(f.Truncate(f.LoadGPR(i.XO.RB), INT32_TYPE), INT64_TYPE));
v = f.Shr(v, 32);
Value* v = f.ZeroExtend(f.MulHi(
f.Truncate(f.LoadGPR(i.XO.RA), INT32_TYPE),
f.Truncate(f.LoadGPR(i.XO.RB), INT32_TYPE),
ARITHMETIC_UNSIGNED), INT64_TYPE);
f.StoreGPR(i.XO.RT, v);
if (i.XO.Rc) {
f.UpdateCR(0, v, false);