From: Tom Stellard <thomas.stellard@amd.com>
Date: Mon, 14 Nov 2016 21:50:13 +0000 (+0000)
Subject: RegAllocGreedy: Properly initialize this pass, so that -run-pass will work
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=107362cf5f2ce05e87e43cda247aa741137cedfe;p=llvm

RegAllocGreedy: Properly initialize this pass, so that -run-pass will work

Reviewers: qcolombet, MatzeB

Subscribers: wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D26572

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286895 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/CodeGen/Passes.h b/include/llvm/CodeGen/Passes.h
index 2862ec450b8..a9fd301691d 100644
--- a/include/llvm/CodeGen/Passes.h
+++ b/include/llvm/CodeGen/Passes.h
@@ -124,6 +124,9 @@ namespace llvm {
   // instruction and update the MachineFunctionInfo with that information.
   extern char &ShrinkWrapID;
 
+  /// Greedy register allocator.
+  extern char &RAGreedyID;
+
   /// VirtRegRewriter pass. Rewrite virtual registers to physical registers as
   /// assigned in VirtRegMap.
   extern char &VirtRegRewriterID;
diff --git a/include/llvm/InitializePasses.h b/include/llvm/InitializePasses.h
index 5d50abf8ea9..62d38ec6435 100644
--- a/include/llvm/InitializePasses.h
+++ b/include/llvm/InitializePasses.h
@@ -126,6 +126,7 @@ void initializeEarlyIfConverterPass(PassRegistry&);
 void initializeEdgeBundlesPass(PassRegistry&);
 void initializeEfficiencySanitizerPass(PassRegistry&);
 void initializeEliminateAvailableExternallyLegacyPassPass(PassRegistry &);
+void initializeRAGreedyPass(PassRegistry&);
 void initializeGVNHoistLegacyPassPass(PassRegistry &);
 void initializeExpandISelPseudosPass(PassRegistry&);
 void initializeExpandPostRAPass(PassRegistry&);
diff --git a/lib/CodeGen/CodeGen.cpp b/lib/CodeGen/CodeGen.cpp
index a1592d71a6b..4cf9b138f10 100644
--- a/lib/CodeGen/CodeGen.cpp
+++ b/lib/CodeGen/CodeGen.cpp
@@ -71,6 +71,7 @@ void llvm::initializeCodeGen(PassRegistry &Registry) {
   initializePostRASchedulerPass(Registry);
   initializePreISelIntrinsicLoweringLegacyPassPass(Registry);
   initializeProcessImplicitDefsPass(Registry);
+  initializeRAGreedyPass(Registry);
   initializeRegisterCoalescerPass(Registry);
   initializeRenameIndependentSubregsPass(Registry);
   initializeShrinkWrapPass(Registry);
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp
index 469ea67f0ac..9a0fc66a96b 100644
--- a/lib/CodeGen/RegAllocGreedy.cpp
+++ b/lib/CodeGen/RegAllocGreedy.cpp
@@ -423,6 +423,24 @@ private:
 } // end anonymous namespace
 
 char RAGreedy::ID = 0;
+char &llvm::RAGreedyID = RAGreedy::ID;
+
+INITIALIZE_PASS_BEGIN(RAGreedy, "greedy",
+                "Greedy Register Allocator", false, false)
+INITIALIZE_PASS_DEPENDENCY(LiveDebugVariables)
+INITIALIZE_PASS_DEPENDENCY(SlotIndexes)
+INITIALIZE_PASS_DEPENDENCY(LiveIntervals)
+INITIALIZE_PASS_DEPENDENCY(RegisterCoalescer)
+INITIALIZE_PASS_DEPENDENCY(MachineScheduler)
+INITIALIZE_PASS_DEPENDENCY(LiveStacks)
+INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
+INITIALIZE_PASS_DEPENDENCY(MachineLoopInfo)
+INITIALIZE_PASS_DEPENDENCY(VirtRegMap)
+INITIALIZE_PASS_DEPENDENCY(LiveRegMatrix)
+INITIALIZE_PASS_DEPENDENCY(EdgeBundles)
+INITIALIZE_PASS_DEPENDENCY(SpillPlacement)
+INITIALIZE_PASS_END(RAGreedy, "greedy",
+                "Greedy Register Allocator", false, false)
 
 #ifndef NDEBUG
 const char *const RAGreedy::StageName[] = {
@@ -446,19 +464,6 @@ FunctionPass* llvm::createGreedyRegisterAllocator() {
 }
 
 RAGreedy::RAGreedy(): MachineFunctionPass(ID) {
-  initializeLiveDebugVariablesPass(*PassRegistry::getPassRegistry());
-  initializeSlotIndexesPass(*PassRegistry::getPassRegistry());
-  initializeLiveIntervalsPass(*PassRegistry::getPassRegistry());
-  initializeSlotIndexesPass(*PassRegistry::getPassRegistry());
-  initializeRegisterCoalescerPass(*PassRegistry::getPassRegistry());
-  initializeMachineSchedulerPass(*PassRegistry::getPassRegistry());
-  initializeLiveStacksPass(*PassRegistry::getPassRegistry());
-  initializeMachineDominatorTreePass(*PassRegistry::getPassRegistry());
-  initializeMachineLoopInfoPass(*PassRegistry::getPassRegistry());
-  initializeVirtRegMapPass(*PassRegistry::getPassRegistry());
-  initializeLiveRegMatrixPass(*PassRegistry::getPassRegistry());
-  initializeEdgeBundlesPass(*PassRegistry::getPassRegistry());
-  initializeSpillPlacementPass(*PassRegistry::getPassRegistry());
 }
 
 void RAGreedy::getAnalysisUsage(AnalysisUsage &AU) const {
diff --git a/test/CodeGen/MIR/Generic/runPass.mir b/test/CodeGen/MIR/Generic/runPass.mir
new file mode 100644
index 00000000000..bf37bdd1836
--- /dev/null
+++ b/test/CodeGen/MIR/Generic/runPass.mir
@@ -0,0 +1,11 @@
+# RUN: llc -run-pass=greedy -debug-pass=Arguments -o - %s 2>&1 | FileCheck %s
+
+# Check that passes are initialized correctly, so that it's possible to
+# use -run-pass.
+
+---
+# CHECK: name: foo
+name: foo
+body: |
+  bb.0:
+...