* Remove the -stopraise option, which is no longer needed now that we have

  the -debug-pass=Arguments option
* Run instcombining BEFORE mem2reg so that getelementptr X, long 0's are
  cleaned up.  This is also important because scalar replacement of aggr.
  will want instcombine to run before it goes as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3879 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/gccas/gccas.cpp b/tools/gccas/gccas.cpp
index f66432899acfa22d480d0e5846c79336d16470f9..8d8950e29b50b9ce31ae00daffa3c0adb7757298 100644 (file)
--- a/tools/gccas/gccas.cpp
+++ b/tools/gccas/gccas.cpp
@@ -38,10 +38,6 @@ RunNPasses("stopAfterNPasses",
            cl::desc("Only run the first N passes of gccas"), cl::Hidden,
            cl::value_desc("# passes"));
 
-static cl::opt<bool> 
-StopAtLevelRaise("stopraise", cl::desc("Stop optimization before level raise"),
-                 cl::Hidden);
-
 static cl::opt<bool>   
 Verify("verify", cl::desc("Verify each pass result"));
 
@@ -76,16 +72,11 @@ void AddConfiguredTransformationPasses(PassManager &PM) {
   addPass(PM, createDeadInstEliminationPass());  // Remove Dead code/vars
   addPass(PM, createRaiseAllocationsPass());     // call %malloc -> malloc inst
   addPass(PM, createIndVarSimplifyPass());       // Simplify indvars
-
-  // Level raise is eternally buggy/in need of enhancements.  Allow
-  // transformation to stop right before it runs.
-  if (StopAtLevelRaise) return;
-
   addPass(PM, createRaisePointerReferencesPass(TD));// Recover type information
+  addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
   addPass(PM, createPromoteMemoryToRegister());  // Promote alloca's to regs
   // Disabling until this is fixed -- Vikram, 7/7/02.
   // addPass(PM, createReassociatePass());          // Reassociate expressions
-  addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
   addPass(PM, createCorrelatedExpressionEliminationPass());
   addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
   addPass(PM, createCFGSimplificationPass());    // Merge & remove BBs