From: Dan Gohman <gohman@apple.com>
Date: Thu, 18 Dec 2008 01:36:42 +0000 (+0000)
Subject: Move post-RA scheduling before branch folding for now, because branch
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=23b0d490cdf27b2cba7b497aceeb5c79b0d0c9fe;p=oota-llvm.git

Move post-RA scheduling before branch folding for now, because branch
folding's tail merging doesn't currently preserve liveness information
which post-RA scheduling requires.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61183 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index e6873923bcc..c9ff15d4947 100644
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -222,13 +222,6 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, bool Fast) {
   // Insert prolog/epilog code.  Eliminate abstract frame index references...
   PM.add(createPrologEpilogCodeInserter());
 
-  if (PrintMachineCode)
-    PM.add(createMachineFunctionPrinterPass(cerr));
-
-  // Branch folding must be run after regalloc and prolog/epilog insertion.
-  if (!Fast)
-    PM.add(createBranchFoldingPass(getEnableTailMergeDefault()));
-
   if (PrintMachineCode)
     PM.add(createMachineFunctionPrinterPass(cerr));
 
@@ -240,6 +233,13 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, bool Fast) {
       PM.add(createMachineFunctionPrinterPass(cerr));
   }
 
+  // Branch folding must be run after regalloc and prolog/epilog insertion.
+  if (!Fast)
+    PM.add(createBranchFoldingPass(getEnableTailMergeDefault()));
+
+  if (PrintMachineCode)
+    PM.add(createMachineFunctionPrinterPass(cerr));
+
   PM.add(createGCMachineCodeAnalysisPass());
 
   if (PrintMachineCode)