[llvm-commits] [llvm] r134086 - in /llvm/trunk/lib/Target/Blackfin: BlackfinISelLowering.cpp BlackfinISelLowering.h BlackfinRegisterInfo.td

[Eric Christopher]

Author: echristo
Date: Wed Jun 29 14:30:29 2011
New Revision: 134086

URL: http://llvm.org/viewvc/llvm-project?rev=134086&view=rev
Log:
Move the Blackfin port away from getRegClassForInlineAsmConstraint by
creating a few specific register classes.

Part of rdar://9643582

Modified:
    llvm/trunk/lib/Target/Blackfin/BlackfinISelLowering.cpp
    llvm/trunk/lib/Target/Blackfin/BlackfinISelLowering.h
    llvm/trunk/lib/Target/Blackfin/BlackfinRegisterInfo.td

Modified: llvm/trunk/lib/Target/Blackfin/BlackfinISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Blackfin/BlackfinISelLowering.cpp?rev=134086&r1=134085&r2=134086&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Blackfin/BlackfinISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/Blackfin/BlackfinISelLowering.cpp Wed Jun 29 14:30:29 2011
@@ -621,39 +621,21 @@
   case 'w': return Pair(0U, ALLRegisterClass);
   case 'Z': return Pair(P3, PRegisterClass);
   case 'Y': return Pair(P1, PRegisterClass);
+  case 'z': return Pair(0U, zConsRegisterClass);
+  case 'D': return Pair(0U, DConsRegisterClass);
+  case 'W': return Pair(0U, WConsRegisterClass);
+  case 'c': return Pair(0U, cConsRegisterClass);
+  case 't': return Pair(0U, tConsRegisterClass);
+  case 'u': return Pair(0U, uConsRegisterClass);
+  case 'k': return Pair(0U, kConsRegisterClass);
+  case 'y': return Pair(0U, yConsRegisterClass);
   }
 
   // Not implemented: q0-q7, qA. Use {R2} etc instead.
-  // Constraints z, D, W, c, t, u, k, and y use non-existing classes, defer to
-  // getRegClassForInlineAsmConstraint()
 
   return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT);
 }
 
-std::vector<unsigned> BlackfinTargetLowering::
-getRegClassForInlineAsmConstraint(const std::string &Constraint, EVT VT) const {
-  using namespace BF;
-
-  if (Constraint.size() != 1)
-    return std::vector<unsigned>();
-
-  switch (Constraint[0]) {
-  case 'z': return make_vector<unsigned>(P0, P1, P2, 0);
-  case 'D': return make_vector<unsigned>(R0, R2, R4, R6, 0);
-  case 'W': return make_vector<unsigned>(R1, R3, R5, R7, 0);
-  case 'c': return make_vector<unsigned>(I0, I1, I2, I3,
-                                         B0, B1, B2, B3,
-                                         L0, L1, L2, L3, 0);
-  case 't': return make_vector<unsigned>(LT0, LT1, 0);
-  case 'u': return make_vector<unsigned>(LB0, LB1, 0);
-  case 'k': return make_vector<unsigned>(LC0, LC1, 0);
-  case 'y': return make_vector<unsigned>(RETS, RETN, RETI, RETX, RETE,
-                                         ASTAT, SEQSTAT, USP, 0);
-  }
-
-  return std::vector<unsigned>();
-}
-
 bool BlackfinTargetLowering::
 isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const {
   // The Blackfin target isn't yet aware of offsets.

Modified: llvm/trunk/lib/Target/Blackfin/BlackfinISelLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Blackfin/BlackfinISelLowering.h?rev=134086&r1=134085&r2=134086&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Blackfin/BlackfinISelLowering.h (original)
+++ llvm/trunk/lib/Target/Blackfin/BlackfinISelLowering.h Wed Jun 29 14:30:29 2011
@@ -48,9 +48,6 @@
 
     std::pair<unsigned, const TargetRegisterClass*>
     getRegForInlineAsmConstraint(const std::string &Constraint, EVT VT) const;
-    std::vector<unsigned>
-    getRegClassForInlineAsmConstraint(const std::string &Constraint,
-                                      EVT VT) const;
     virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
     const char *getTargetNodeName(unsigned Opcode) const;
 

Modified: llvm/trunk/lib/Target/Blackfin/BlackfinRegisterInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Blackfin/BlackfinRegisterInfo.td?rev=134086&r1=134085&r2=134086&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Blackfin/BlackfinRegisterInfo.td (original)
+++ llvm/trunk/lib/Target/Blackfin/BlackfinRegisterInfo.td Wed Jun 29 14:30:29 2011
@@ -261,3 +261,17 @@
 
 // Should be i40, but that isn't defined. It is not a legal type yet anyway.
 def Accu : RegisterClass<"BF", [i64], 64, (add A0, A1)>;
+
+// Register classes to match inline asm constraints.
+def zCons : RegisterClass<"BF", [i32], 32, (add P0, P1, P2)>;
+def DCons : RegisterClass<"BF", [i32], 32, (add R0, R2, R4, R6)>;
+def WCons : RegisterClass<"BF", [i32], 32, (add R1, R3, R5, R7)>;
+def cCons : RegisterClass<"BF", [i32], 32, (add I0, I1, I2, I3,
+    	    			       	   	B0, B1, B2, B3,
+						L0, L1, L2, L3)>;
+def tCons : RegisterClass<"BF", [i32], 32, (add LT0, LT1)>;
+def uCons : RegisterClass<"BF", [i32], 32, (add LB0, LB1)>;
+def kCons : RegisterClass<"BF", [i32], 32, (add LC0, LC1)>;
+def yCons : RegisterClass<"BF", [i32], 32, (add RETS, RETN, RETI, RETX,
+    	    			       	   	RETE, ASTAT, SEQSTAT,
+						USP)>;