Run post-RA scheduling after branch folding, as it tends to
obscure tail-merging opportunities.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59967 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index e10be69..e687392 100644
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -225,6 +225,13 @@
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));
+
// Second pass scheduler.
if (!Fast && !DisablePostRAScheduler) {
PM.add(createPostRAScheduler());
@@ -233,10 +240,6 @@
PM.add(createMachineFunctionPrinterPass(cerr));
}
- // Branch folding must be run after regalloc and prolog/epilog insertion.
- if (!Fast)
- PM.add(createBranchFoldingPass(getEnableTailMergeDefault()));
-
PM.add(createGCMachineCodeAnalysisPass());
if (PrintMachineCode)