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ARM: Make sure macroops aren't interrupted midinstruction.

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Do this by setting the delayed commit flag for all but the last microop.
This commit is contained in:
Gabe Black 2010-06-02 12:58:12 -05:00
parent 67766cbf17
commit 1fcd389fa3
2 changed files with 32 additions and 2 deletions
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14
src/arch/arm/insts/macromem.cc
View file

@ -128,6 +128,13 @@ MacroMemOp::MacroMemOp(const char *mnem, ExtMachInst machInst,
}
(*uop)->setLastMicroop();
for (StaticInstPtr *curUop = microOps;
!(*curUop)->isLastMicroop(); curUop++) {
MicroOp * uopPtr = dynamic_cast<MicroOp *>(curUop->get());
assert(uopPtr);
uopPtr->setDelayedCommit();
}
}
MacroVFPMemOp::MacroVFPMemOp(const char *mnem, ExtMachInst machInst,
@ -198,6 +205,13 @@ MacroVFPMemOp::MacroVFPMemOp(const char *mnem, ExtMachInst machInst,
assert(numMicroops == i);
microOps[numMicroops - 1]->setLastMicroop();
for (StaticInstPtr *curUop = microOps;
!(*curUop)->isLastMicroop(); curUop++) {
MicroOp * uopPtr = dynamic_cast<MicroOp *>(curUop->get());
assert(uopPtr);
uopPtr->setDelayedCommit();
}
}
}

20
src/arch/arm/insts/macromem.hh
View file

@ -60,10 +60,26 @@ number_of_ones(int32_t val)
return ones;
}
class MicroOp : public PredOp
{
protected:
MicroOp(const char *mnem, ExtMachInst machInst, OpClass __opClass)
: PredOp(mnem, machInst, __opClass)
{
}
public:
void
setDelayedCommit()
{
flags[IsDelayedCommit] = true;
}
};
/**
* Microops of the form IntRegA = IntRegB op Imm
*/
class MicroIntOp : public PredOp
class MicroIntOp : public MicroOp
{
protected:
RegIndex ura, urb;
@ -71,7 +87,7 @@ class MicroIntOp : public PredOp
MicroIntOp(const char *mnem, ExtMachInst machInst, OpClass __opClass,
RegIndex _ura, RegIndex _urb, uint8_t _imm)
: PredOp(mnem, machInst, __opClass),
: MicroOp(mnem, machInst, __opClass),
ura(_ura), urb(_urb), imm(_imm)
{
}