[llvm-commits] CVS: llvm/lib/CodeGen/RegAllocSimple.cpp

[Misha Brukman]

Changes in directory llvm/lib/CodeGen:

RegAllocSimple.cpp updated: 1.3 -> 1.4

---
Log message:

Fun arithmetic with iterators aimed at fixing a bug: inserting instructions
after the *current* instruction while keeping the iterator in the same
'logical' place.


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Diffs of the changes:

Index: llvm/lib/CodeGen/RegAllocSimple.cpp
diff -u llvm/lib/CodeGen/RegAllocSimple.cpp:1.3 llvm/lib/CodeGen/RegAllocSimple.cpp:1.4
--- llvm/lib/CodeGen/RegAllocSimple.cpp:1.3	Tue Dec  3 17:15:19 2002
+++ llvm/lib/CodeGen/RegAllocSimple.cpp	Wed Dec  4 13:24:45 2002
@@ -29,7 +29,8 @@
     unsigned NumBytesAllocated, ByteAlignment;
     
     // Maps SSA Regs => offsets on the stack where these values are stored
-    std::map<unsigned, unsigned> RegMap; // FIXME: change name to VirtReg2OffsetMap
+    // FIXME: change name to VirtReg2OffsetMap
+    std::map<unsigned, unsigned> RegMap;
 
     // Maps SSA Regs => physical regs
     std::map<unsigned, unsigned> SSA2PhysRegMap;
@@ -235,7 +236,8 @@
           if (op.opIsDef()) {
             physReg = getFreeReg(virtualReg);
             MachineBasicBlock::iterator J = I;
-            I = saveVirtRegToStack(J, virtualReg, physReg);
+            J = saveVirtRegToStack(++J, virtualReg, physReg);
+            I = --J;
           } else {
             I = moveUseToReg(I, virtualReg, physReg);
           }