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-rw-r--r--lib/CodeGen/SelectionDAG/TargetLowering.cpp18
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index d74ec7e2e5..1683d01bba 100644
--- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -540,6 +540,24 @@ TargetLowering::~TargetLowering() {
delete &TLOF;
}
+/// canOpTrap - Returns true if the operation can trap for the value type.
+/// VT must be a legal type.
+bool TargetLowering::canOpTrap(unsigned Op, EVT VT) const {
+ assert(isTypeLegal(VT));
+ switch (Op) {
+ default:
+ return false;
+ case ISD::FDIV:
+ case ISD::FREM:
+ case ISD::SDIV:
+ case ISD::UDIV:
+ case ISD::SREM:
+ case ISD::UREM:
+ return true;
+ }
+}
+
+
static unsigned getVectorTypeBreakdownMVT(MVT VT, MVT &IntermediateVT,
unsigned &NumIntermediates,
EVT &RegisterVT,