More flexible TargetLowering LSR hooks for testing whether an immediate is a legal target address immediate or scale.

llvm-svn: 35076

1 files changed, 13 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 39f6fe79a97..faa50295690 100644
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -1931,15 +1931,25 @@ getRegForInlineAsmConstraint(const std::string &Constraint,
 //  Loop Strength Reduction hooks
 //===----------------------------------------------------------------------===//
 
-/// isLegalAddressImmediate - Return true if the integer value or
-/// GlobalValue can be used as the offset of the target addressing mode.
-bool TargetLowering::isLegalAddressImmediate(int64_t V) const {
+/// isLegalAddressImmediate - Return true if the integer value can be used as
+/// the offset of the target addressing mode for load / store of the given
+/// type.
+bool TargetLowering::isLegalAddressImmediate(int64_t V, const Type *Ty) const {
   return false;
 }
+
+/// isLegalAddressImmediate - Return true if the GlobalValue can be used as
+/// the offset of the target addressing mode.
 bool TargetLowering::isLegalAddressImmediate(GlobalValue *GV) const {
   return false;
 }
 
+/// isLegalAddressScale - Return true if the integer value can be used as the
+/// scale of the target addressing mode for load / store of the given type.
+bool TargetLowering::isLegalAddressScale(int64_t S, const Type *Ty) const {
+  return false;
+}
+
 
 // Magic for divide replacement