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Fix #2329: don't use invalid initializers.

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This commit is contained in:
John Kessenich
2020-07-13 00:35:58 -06:00
parent 206886948a
commit 4e13c90944
6 changed files with 176 additions and 2 deletions
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7
SPIRV/SpvBuilder.h
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@@ -248,6 +248,13 @@ public:
{ return module.getInstruction(resultId)->getImmediateOperand(0); }
StorageClass getStorageClass(Id resultId) const { return getTypeStorageClass(getTypeId(resultId)); }
bool isVariableOpCode(Op opcode) const { return opcode == OpVariable; }
bool isVariable(Id resultId) const { return isVariableOpCode(getOpCode(resultId)); }
bool isGlobalStorage(Id resultId) const { return getStorageClass(resultId) != StorageClassFunction; }
bool isGlobalVariable(Id resultId) const { return isVariable(resultId) && isGlobalStorage(resultId); }
// See if a resultId is valid for use as an initializer.
bool isValidInitializer(Id resultId) const { return isConstant(resultId) || isGlobalVariable(resultId); }
int getScalarTypeWidth(Id typeId) const
{
Id scalarTypeId = getScalarTypeId(typeId);