turn IPSCCP back on by default, try #3 or 4? Woo.

llvm-svn: 85929

include/llvm/Support/StandardPasses.h

@@ -99,8 +99,7 @@ namespace llvm {
     if (UnitAtATime) {
       PM->add(createGlobalOptimizerPass());     // Optimize out global vars
       
-      PM->add(createIPConstantPropagationPass());              // IP CP
-//      PM->add(createIPSCCPPass());              // IP SCCP
+      PM->add(createIPSCCPPass());              // IP SCCP
       PM->add(createDeadArgEliminationPass());  // Dead argument elimination
     }
     PM->add(createInstructionCombiningPass());  // Clean up after IPCP & DAE

test/FrontendC++/integration-O2.cpp

@@ -1,5 +1,4 @@
 // RUN: %llvmgxx %s -O2 -S -o - | FileCheck %s
-// XFAIL: *
 
 // This test verifies that we get expected codegen out of the -O2 optimization
 // level from the full optimizer.