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

Jim Laskey jlaskey at apple.com
Mon Dec 19 08:32:37 PST 2005



Changes in directory llvm/lib/CodeGen/SelectionDAG:

ScheduleDAG.cpp updated: 1.52 -> 1.53
---
Log message:

Amend comment.


---
Diffs of the changes:  (+2 -1)

 ScheduleDAG.cpp |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)


Index: llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp:1.52 llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp:1.53
--- llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp:1.52	Mon Dec 19 10:30:13 2005
+++ llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp	Mon Dec 19 10:32:26 2005
@@ -860,7 +860,8 @@
 /// isStrongDependency - Return true if node A has results used by node B. 
 /// I.E., B must wait for latency of A.
 bool SimpleSched::isStrongDependency(NodeInfo *A, NodeInfo *B) {
-  // If A defines for B then it's a strong dependency
+  // If A defines for B then it's a strong dependency or
+  // if a load follows a store (may be dependent but why take a chance.)
   return isDefiner(A, B) || (A->IsStore && B->IsLoad);
 }
 






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