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-rw-r--r--include/llvm/Target/TargetLowering.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index acf0419510..b8c070bce7 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -107,6 +107,14 @@ public:
ZeroOrNegativeOneBooleanContent // All bits equal to bit 0.
};
+ enum SelectSupportKind {
+ ScalarValSelect, // The target supports scalar selects (ex: cmov).
+ ScalarCondVectorVal, // The target supports selects with a scalar condition
+ // and vector values (ex: cmov).
+ VectorMaskSelect // The target supports vector selects with a vector
+ // mask (ex: x86 blends).
+ };
+
static ISD::NodeType getExtendForContent(BooleanContent Content) {
switch (Content) {
case UndefinedBooleanContent:
@@ -140,6 +148,8 @@ public:
/// this target.
bool isSelectExpensive() const { return SelectIsExpensive; }
+ virtual bool isSelectSupported(SelectSupportKind kind) const { return true; }
+
/// isIntDivCheap() - Return true if integer divide is usually cheaper than
/// a sequence of several shifts, adds, and multiplies for this target.
bool isIntDivCheap() const { return IntDivIsCheap; }