[llvm-commits] [llvm] r67692 - /llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp

[Dale Johannesen]

Author: johannes
Date: Wed Mar 25 12:36:08 2009
New Revision: 67692

URL: http://llvm.org/viewvc/llvm-project?rev=67692&view=rev
Log:
When optimizing with debug info, don't keep the
stoppoint nodes around until Legalize; doing this
imposed an ordering on a sequence of loads that
came from different lines, interfering with scheduling.


Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp?rev=67692&r1=67691&r2=67692&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp Wed Mar 25 12:36:08 2009
@@ -3895,10 +3895,11 @@
     DbgStopPointInst &SPI = cast<DbgStopPointInst>(I);
     if (DW && DW->ValidDebugInfo(SPI.getContext())) {
       MachineFunction &MF = DAG.getMachineFunction();
-      DAG.setRoot(DAG.getDbgStopPoint(getRoot(),
-                                      SPI.getLine(),
-                                      SPI.getColumn(),
-                                      SPI.getContext()));
+      if (Fast)
+        DAG.setRoot(DAG.getDbgStopPoint(getRoot(),
+                                        SPI.getLine(),
+                                        SPI.getColumn(),
+                                        SPI.getContext()));
       DICompileUnit CU(cast<GlobalVariable>(SPI.getContext()));
       std::string Dir, FN;
       unsigned SrcFile = DW->getOrCreateSourceID(CU.getDirectory(Dir),