[llvm] r285422 - TargetPassConfig: Move addPass of IPRA RegUsageInfoProp down.

[Matthias Braun via llvm-commits]

Author: matze
Date: Fri Oct 28 13:05:05 2016
New Revision: 285422

URL: http://llvm.org/viewvc/llvm-project?rev=285422&view=rev
Log:
TargetPassConfig: Move addPass of IPRA RegUsageInfoProp down.

TargetPassConfig::addMachinePasses() does some housekeeping first:
Handling the -print-machineinstrs flag and doing an initial printing
"After Instruction Selection". There is no reason for RegUsageInfoProp
to run before those two steps.

Modified:
    llvm/trunk/lib/CodeGen/TargetPassConfig.cpp

Modified: llvm/trunk/lib/CodeGen/TargetPassConfig.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/TargetPassConfig.cpp?rev=285422&r1=285421&r2=285422&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/TargetPassConfig.cpp (original)
+++ llvm/trunk/lib/CodeGen/TargetPassConfig.cpp Fri Oct 28 13:05:05 2016
@@ -570,9 +570,6 @@ void TargetPassConfig::addISelPrepare()
 void TargetPassConfig::addMachinePasses() {
   AddingMachinePasses = true;
 
-  if (TM->Options.EnableIPRA)
-    addPass(createRegUsageInfoPropPass());
-
   // Insert a machine instr printer pass after the specified pass.
   if (!StringRef(PrintMachineInstrs.getValue()).equals("") &&
       !StringRef(PrintMachineInstrs.getValue()).equals("option-unspecified")) {
@@ -588,6 +585,9 @@ void TargetPassConfig::addMachinePasses(
   // Print the instruction selected machine code...
   printAndVerify("After Instruction Selection");
 
+  if (TM->Options.EnableIPRA)
+    addPass(createRegUsageInfoPropPass());
+
   // Expand pseudo-instructions emitted by ISel.
   addPass(&ExpandISelPseudosID);