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Added const evals for IsNull

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This commit is contained in:
Brian Fiete 2021-01-16 08:29:00 -08:00
parent df2c110de2
commit f04da6d826
1 changed files with 22 additions and 0 deletions
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22
IDEHelper/Compiler/BfIRBuilder.cpp
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@ -4237,6 +4237,17 @@ BfIRValue BfIRBuilder::CreateInBoundsGEP(BfIRValue val, BfIRValue idx0, BfIRValu
BfIRValue BfIRBuilder::CreateIsNull(BfIRValue val)
{
auto constant = GetConstant(val);
if (constant != NULL)
{
if (constant->mTypeCode == BfTypeCode_NullPtr)
return CreateConst(BfTypeCode_Boolean, 1);
if (constant->mConstType == BfConstType_BitCastNull)
return CreateConst(BfTypeCode_Boolean, 1);
if (constant->mConstType == BfConstType_GlobalVar)
return CreateConst(BfTypeCode_Boolean, 0);
}
BfIRValue retVal = WriteCmd(BfIRCmd_IsNull, val);
NEW_CMD_INSERTED_IRVALUE;
return retVal;
@ -4244,6 +4255,17 @@ BfIRValue BfIRBuilder::CreateIsNull(BfIRValue val)
BfIRValue BfIRBuilder::CreateIsNotNull(BfIRValue val)
{
auto constant = GetConstant(val);
if (constant != NULL)
{
if (constant->mTypeCode == BfTypeCode_NullPtr)
return CreateConst(BfTypeCode_Boolean, 0);
if (constant->mConstType == BfConstType_BitCastNull)
return CreateConst(BfTypeCode_Boolean, 0);
if (constant->mConstType == BfConstType_GlobalVar)
return CreateConst(BfTypeCode_Boolean, 1);
}
BfIRValue retVal = WriteCmd(BfIRCmd_IsNotNull, val);
NEW_CMD_INSERTED_IRVALUE;
return retVal;