Remove getRegClassForInlineAsmConstraint from MBlaze. Add a TODO comment

for the port.

Part of rdar://9643582


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134085 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 29 deletions

diff --git a/lib/Target/MBlaze/MBlazeISelLowering.cpp b/lib/Target/MBlaze/MBlazeISelLowering.cpp
index c5e0a89..ba2de40 100644
--- a/lib/Target/MBlaze/MBlazeISelLowering.cpp
+++ b/lib/Target/MBlaze/MBlazeISelLowering.cpp
@@ -1114,15 +1114,19 @@ MBlazeTargetLowering::getSingleConstraintMatchWeight(
   return weight;
 }
 
-/// getRegClassForInlineAsmConstraint - Given a constraint letter (e.g. "r"),
-/// return a list of registers that can be used to satisfy the constraint.
-/// This should only be used for C_RegisterClass constraints.
+/// Given a register class constraint, like 'r', if this corresponds directly
+/// to an LLVM register class, return a register of 0 and the register class
+/// pointer.
 std::pair<unsigned, const TargetRegisterClass*> MBlazeTargetLowering::
 getRegForInlineAsmConstraint(const std::string &Constraint, EVT VT) const {
   if (Constraint.size() == 1) {
     switch (Constraint[0]) {
     case 'r':
       return std::make_pair(0U, MBlaze::GPRRegisterClass);
+      // TODO: These can't possibly be right, but match what was in
+      // getRegClassForInlineAsmConstraint.
+    case 'd':
+    case 'y':
     case 'f':
       if (VT == MVT::f32)
         return std::make_pair(0U, MBlaze::GPRRegisterClass);
@@ -1131,32 +1135,6 @@ getRegForInlineAsmConstraint(const std::string &Constraint, EVT VT) const {
   return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT);
 }
 
-/// Given a register class constraint, like 'r', if this corresponds directly
-/// to an LLVM register class, return a register of 0 and the register class
-/// pointer.
-std::vector<unsigned> MBlazeTargetLowering::
-getRegClassForInlineAsmConstraint(const std::string &Constraint, EVT VT) const {
-  if (Constraint.size() != 1)
-    return std::vector<unsigned>();
-
-  switch (Constraint[0]) {
-    default : break;
-    case 'r':
-    // GCC MBlaze Constraint Letters
-    case 'd':
-    case 'y':
-    case 'f':
-      return make_vector<unsigned>(
-        MBlaze::R3,  MBlaze::R4,  MBlaze::R5,  MBlaze::R6,
-        MBlaze::R7,  MBlaze::R9,  MBlaze::R10, MBlaze::R11,
-        MBlaze::R12, MBlaze::R19, MBlaze::R20, MBlaze::R21,
-        MBlaze::R22, MBlaze::R23, MBlaze::R24, MBlaze::R25,
-        MBlaze::R26, MBlaze::R27, MBlaze::R28, MBlaze::R29,
-        MBlaze::R30, MBlaze::R31, 0);
-  }
-  return std::vector<unsigned>();
-}
-
 bool MBlazeTargetLowering::
 isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const {
   // The MBlaze target isn't yet aware of offsets.