[llvm-commits] [llvm] r84776 - in /llvm/trunk: lib/Target/MSP430/MSP430ISelDAGToDAG.cpp test/CodeGen/MSP430/Inst16mm.ll test/CodeGen/MSP430/Inst8mm.ll

[Anton Korobeynikov]

Author: asl
Date: Wed Oct 21 14:18:28 2009
New Revision: 84776

URL: http://llvm.org/viewvc/llvm-project?rev=84776&view=rev
Log:
Add DAG printing for RMW stuff debugging

Modified:
    llvm/trunk/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp
    llvm/trunk/test/CodeGen/MSP430/Inst16mm.ll
    llvm/trunk/test/CodeGen/MSP430/Inst8mm.ll

Modified: llvm/trunk/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp?rev=84776&r1=84775&r2=84776&view=diff

==============================================================================
--- llvm/trunk/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp Wed Oct 21 14:18:28 2009
@@ -26,6 +26,7 @@
 #include "llvm/CodeGen/SelectionDAG.h"
 #include "llvm/CodeGen/SelectionDAGISel.h"
 #include "llvm/Target/TargetLowering.h"
+#include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
@@ -34,6 +35,14 @@
 
 using namespace llvm;
 
+#ifndef NDEBUG
+static cl::opt<bool>
+ViewRMWDAGs("view-msp430-rmw-dags", cl::Hidden,
+          cl::desc("Pop up a window to show isel dags after RMW preprocess"));
+#else
+static const bool ViewRMWDAGs = false;
+#endif
+
 STATISTIC(NumLoadMoved, "Number of loads moved below TokenFactor");
 
 /// MSP430DAGToDAGISel - MSP430 specific code to select MSP430 machine
@@ -288,8 +297,15 @@
 /// InstructionSelect - This callback is invoked by
 /// SelectionDAGISel when it has created a SelectionDAG for us to codegen.
 void MSP430DAGToDAGISel::InstructionSelect() {
+  std::string BlockName;
+  if (ViewRMWDAGs)
+    BlockName = MF->getFunction()->getNameStr() + ":" +
+                BB->getBasicBlock()->getNameStr();
+
   PreprocessForRMW();
 
+  if (ViewRMWDAGs) CurDAG->viewGraph("RMW preprocessed:" + BlockName);
+
   DEBUG(errs() << "Selection DAG after RMW preprocessing:\n");
   DEBUG(CurDAG->dump());
 

Modified: llvm/trunk/test/CodeGen/MSP430/Inst16mm.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/MSP430/Inst16mm.ll?rev=84776&r1=84775&r2=84776&view=diff

==============================================================================
--- llvm/trunk/test/CodeGen/MSP430/Inst16mm.ll (original)
+++ llvm/trunk/test/CodeGen/MSP430/Inst16mm.ll Wed Oct 21 14:18:28 2009
@@ -1,5 +1,5 @@
 ; RUN: llc -march=msp430 < %s | FileCheck %s
-; XFAIL
+; XFAIL: *
 target datalayout = "e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8"
 target triple = "msp430-generic-generic"
 @foo = common global i16 0, align 2

Modified: llvm/trunk/test/CodeGen/MSP430/Inst8mm.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/MSP430/Inst8mm.ll?rev=84776&r1=84775&r2=84776&view=diff

==============================================================================
--- llvm/trunk/test/CodeGen/MSP430/Inst8mm.ll (original)
+++ llvm/trunk/test/CodeGen/MSP430/Inst8mm.ll Wed Oct 21 14:18:28 2009
@@ -1,5 +1,5 @@
 ; RUN: llc -march=msp430 < %s | FileCheck %s
-; XFAIL
+; XFAIL: *
 target datalayout = "e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8"
 target triple = "msp430-generic-generic"