[llvm-commits] CVS: llvm/lib/Target/Alpha/AlphaISelPattern.cpp

[Andrew Lenharth]

Changes in directory llvm/lib/Target/Alpha:

AlphaISelPattern.cpp updated: 1.102 -> 1.103
---
Log message:

Implement Value* tracking for loads and stores in the selection DAG.  This enables one to use alias analysis in the backends.

(TRUNK)Stores and (EXT|ZEXT|SEXT)Loads have an extra SDOperand which is a SrcValueSDNode which contains the Value*.  Note that if the operation is introduced by the backend, it will still have the operand, but the value* will be null.



---
Diffs of the changes:  (+3 -3)

 AlphaISelPattern.cpp |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)


Index: llvm/lib/Target/Alpha/AlphaISelPattern.cpp
diff -u llvm/lib/Target/Alpha/AlphaISelPattern.cpp:1.102 llvm/lib/Target/Alpha/AlphaISelPattern.cpp:1.103
--- llvm/lib/Target/Alpha/AlphaISelPattern.cpp:1.102	Fri Apr 22 12:50:14 2005
+++ llvm/lib/Target/Alpha/AlphaISelPattern.cpp	Wed Apr 27 15:10:01 2005
@@ -229,7 +229,7 @@
       //from this parameter
       SDOperand FIN = DAG.getFrameIndex(FI, MVT::i64);
       argt = newroot = DAG.getLoad(getValueType(I->getType()),
-                                   DAG.getEntryNode(), FIN);
+                                   DAG.getEntryNode(), FIN, DAG.getSrcValue(NULL));
     }
     ++count;
     LS.push_back(newroot.getValue(1));
@@ -245,14 +245,14 @@
       SDOperand argt = DAG.getCopyFromReg(Vreg, MVT::i64, Chain);
       int FI = MFI->CreateFixedObject(8, -8 * (6 - i));
       SDOperand SDFI = DAG.getFrameIndex(FI, MVT::i64);
-      LS.push_back(DAG.getNode(ISD::STORE, MVT::Other, Chain, argt, SDFI));
+      LS.push_back(DAG.getNode(ISD::STORE, MVT::Other, Chain, argt, SDFI, DAG.getSrcValue(NULL)));
 
       Vreg = MF.getSSARegMap()->createVirtualRegister(getRegClassFor(MVT::f64));
       BuildMI(&BB, Alpha::CPYS, 2, Vreg).addReg(args_float[i]).addReg(args_float[i]);
       argt = DAG.getCopyFromReg(Vreg, MVT::f64, Chain);
       FI = MFI->CreateFixedObject(8, - 8 * (12 - i));
       SDFI = DAG.getFrameIndex(FI, MVT::i64);
-      LS.push_back(DAG.getNode(ISD::STORE, MVT::Other, Chain, argt, SDFI));
+      LS.push_back(DAG.getNode(ISD::STORE, MVT::Other, Chain, argt, SDFI, DAG.getSrcValue(NULL)));
     }
 
   // If the function takes variable number of arguments, make a frame index for