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Arithmetic overflow checks

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This commit is contained in:
Brian Fiete 2022-01-11 08:17:09 -05:00
parent 1f0d2dcc82
commit eb375362a1
29 changed files with 503 additions and 87 deletions
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35
IDEHelper/Compiler/BfIRBuilder.cpp
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@ -4248,7 +4248,7 @@ BfIRValue BfIRBuilder::CreateCmpGTE(BfIRValue lhs, BfIRValue rhs, bool isSigned)
return retVal;
}
BfIRValue BfIRBuilder::CreateAdd(BfIRValue lhs, BfIRValue rhs)
BfIRValue BfIRBuilder::CreateAdd(BfIRValue lhs, BfIRValue rhs, BfOverflowCheckKind overflowCheckKind)
{
mOpFailed = false;
if ((lhs.IsConst()) && (rhs.IsConst()))
@ -4260,12 +4260,19 @@ BfIRValue BfIRBuilder::CreateAdd(BfIRValue lhs, BfIRValue rhs)
}
}
auto retVal = WriteCmd(BfIRCmd_Add, lhs, rhs);
auto retVal = WriteCmd(BfIRCmd_Add, lhs, rhs, overflowCheckKind);
NEW_CMD_INSERTED_IRVALUE;
if ((overflowCheckKind != BfOverflowCheckKind_None) && (!mIgnoreWrites))
{
mInsertBlock = mActualInsertBlock = WriteCmd(BfIRCmd_GetInsertBlock);
NEW_CMD_INSERTED_IRVALUE;
}
return retVal;
}
BfIRValue BfIRBuilder::CreateSub(BfIRValue lhs, BfIRValue rhs)
BfIRValue BfIRBuilder::CreateSub(BfIRValue lhs, BfIRValue rhs, BfOverflowCheckKind overflowCheckKind)
{
mOpFailed = false;
if ((lhs.IsConst()) && (rhs.IsConst()))
@ -4273,12 +4280,19 @@ BfIRValue BfIRBuilder::CreateSub(BfIRValue lhs, BfIRValue rhs)
BINOPFUNC_APPLY(lhs, rhs, CheckedSub);
}
auto retVal = WriteCmd(BfIRCmd_Sub, lhs, rhs);
auto retVal = WriteCmd(BfIRCmd_Sub, lhs, rhs, overflowCheckKind);
NEW_CMD_INSERTED;
if ((overflowCheckKind != BfOverflowCheckKind_None) && (!mIgnoreWrites))
{
mInsertBlock = mActualInsertBlock = WriteCmd(BfIRCmd_GetInsertBlock);
NEW_CMD_INSERTED_IRVALUE;
}
return retVal;
}
BfIRValue BfIRBuilder::CreateMul(BfIRValue lhs, BfIRValue rhs)
BfIRValue BfIRBuilder::CreateMul(BfIRValue lhs, BfIRValue rhs, BfOverflowCheckKind overflowCheckKind)
{
mOpFailed = false;
if ((lhs.IsConst()) && (rhs.IsConst()))
@ -4286,8 +4300,15 @@ BfIRValue BfIRBuilder::CreateMul(BfIRValue lhs, BfIRValue rhs)
BINOPFUNC_APPLY(lhs, rhs, CheckedMul);
}
auto retVal = WriteCmd(BfIRCmd_Mul, lhs, rhs);
auto retVal = WriteCmd(BfIRCmd_Mul, lhs, rhs, overflowCheckKind);
NEW_CMD_INSERTED_IRVALUE;
if ((overflowCheckKind != BfOverflowCheckKind_None) && (!mIgnoreWrites))
{
mInsertBlock = mActualInsertBlock = WriteCmd(BfIRCmd_GetInsertBlock);
NEW_CMD_INSERTED_IRVALUE;
}
return retVal;
}
@ -5394,7 +5415,7 @@ void BfIRBuilder::CreateStatementStart()
}
void BfIRBuilder::CreateObjectAccessCheck(BfIRValue value, bool useAsm)
{
{
auto retBlock = WriteCmd(BfIRCmd_ObjectAccessCheck, value, useAsm);
NEW_CMD_INSERTED_IRBLOCK;
if (!mIgnoreWrites)