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cleanups to the ValueTypeActions interface

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25785 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-01-29 08:42:06 +00:00
parent d9b55dd21a
commit 68a17febc7
1 changed files with 5 additions and 7 deletions

12
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

@ -41,18 +41,16 @@ class SelectionDAGLegalize {
TargetLowering &TLI;
SelectionDAG &DAG;
/// LegalizeAction - This enum indicates what action we should take for each
/// value type the can occur in the program.
enum LegalizeAction {
Legal, // The target natively supports this value type.
Promote, // This should be promoted to the next larger type.
Expand, // This integer type should be broken into smaller pieces.
Legal, // The target natively supports this operation.
Promote, // This operation should be executed in a larger type.
Expand, // Try to expand this to other ops, otherwise use a libcall.
};
/// ValueTypeActions - This is a bitvector that contains two bits for each
/// value type, where the two bits correspond to the LegalizeAction enum.
/// This can be queried with "getTypeAction(VT)".
unsigned long long ValueTypeActions;
TargetLowering::ValueTypeActionImpl ValueTypeActions;
/// LegalizedNodes - For nodes that are of legal width, and that have more
/// than one use, this map indicates what regularized operand to use. This
@ -91,7 +89,7 @@ public:
/// it is already legal or we need to expand it into multiple registers of
/// smaller integer type, or we need to promote it to a larger type.
LegalizeAction getTypeAction(MVT::ValueType VT) const {
return (LegalizeAction)((ValueTypeActions >> (2*VT)) & 3);
return (LegalizeAction)ValueTypeActions.getTypeAction(VT);
}
/// isTypeLegal - Return true if this type is legal on this target.