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

[Alkis Evlogimenos]

Changes in directory llvm/lib/CodeGen:

TwoAddressInstructionPass.cpp updated: 1.2 -> 1.3

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Log message:

Update description.


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Diffs of the changes:  (+10 -5)

Index: llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
diff -u llvm/lib/CodeGen/TwoAddressInstructionPass.cpp:1.2 llvm/lib/CodeGen/TwoAddressInstructionPass.cpp:1.3
--- llvm/lib/CodeGen/TwoAddressInstructionPass.cpp:1.2	Thu Dec 18 16:40:23 2003
+++ llvm/lib/CodeGen/TwoAddressInstructionPass.cpp	Sun Jan  4 17:09:24 2004
@@ -7,11 +7,16 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This file implements the LiveInterval analysis pass which is used
-// by the Linear Scan Register allocator. This pass linearizes the
-// basic blocks of the function in DFS order and uses the
-// LiveVariables pass to conservatively compute live intervals for
-// each virtual and physical register.
+// This file implements the TwoAddress instruction pass which is used
+// by most register allocators. Two-Address instructions are rewritten
+// from:
+//
+//     A = B op C
+//
+// to:
+//
+//     A = B
+//     A = A op C
 //
 //===----------------------------------------------------------------------===//