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Add support for multi-element vector swizzles. Issue #17.

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This commit adds support for swizzles like "foo.zy" (if "foo" is,
for example, a float<3> type) as rvalues.  (Still need support for
swizzles as lvalues.)
This commit is contained in:
Pete Couperus
2011-07-22 13:10:14 +01:00
committed by Matt Pharr
parent 98a2d69e72
commit 59036cdf5b
10 changed files with 397 additions and 140 deletions
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23
expr.h
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@@ -292,23 +292,28 @@ private:
/** @brief Expression representing member selection ("foo.bar").
*
* This will also be overloaded to deal with swizzles.
*/
class MemberExpr : public Expr {
public:
static MemberExpr* create(Expr *expr, const char *identifier,
SourcePos pos, SourcePos identifierPos);
MemberExpr(Expr *expr, const char *identifier, SourcePos pos,
SourcePos identifierPos);
llvm::Value *GetValue(FunctionEmitContext *ctx) const;
llvm::Value *GetLValue(FunctionEmitContext *ctx) const;
const Type *GetType() const;
Symbol *GetBaseSymbol() const;
void Print() const;
Expr *Optimize();
Expr *TypeCheck();
virtual llvm::Value *GetValue(FunctionEmitContext *ctx) const;
virtual llvm::Value *GetLValue(FunctionEmitContext *ctx) const;
virtual const Type *GetType() const;
virtual Symbol *GetBaseSymbol() const;
virtual void Print() const;
virtual Expr *Optimize();
virtual Expr *TypeCheck();
virtual int getElementNumber() const;
private:
protected:
std::string getCandidateNearMatches() const;
int getElementNumber() const;
Expr *expr;
std::string identifier;