Author: void
Date: Fri Jan 4 14:54:55 2008
New Revision: 45596
URL: http://llvm.org/viewvc/llvm-project?rev=45596&view=rev
Log:
Don't recalculate the loop info and loop dominators analyses if they're
preserved.
Modified:
llvm/trunk/include/llvm/CodeGen/Passes.h
llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp
llvm/trunk/lib/CodeGen/MachineDominators.cpp
llvm/trunk/lib/CodeGen/MachineLoopInfo.cpp
llvm/trunk/lib/CodeGen/PHIElimination.cpp
llvm/trunk/lib/CodeGen/RegAllocLinearScan.cpp
llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp
llvm/trunk/lib/CodeGen/TwoAddressInstructionPass.cpp
Modified: llvm/trunk/include/llvm/CodeGen/Passes.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/Passes.h?rev=45596&r1=45595&r2=45596&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/Passes.h (original)
+++ llvm/trunk/include/llvm/CodeGen/Passes.h Fri Jan 4 14:54:55 2008
@@ -38,6 +38,14 @@
FunctionPass *createMachineFunctionPrinterPass(std::ostream *OS,
const std::string &Banner
="");
+ /// MachineLoopInfo pass - This pass is a loop analysis pass.
+ ///
+ extern const PassInfo *MachineLoopInfoID;
+
+ /// MachineDominators pass - This pass is a machine dominators analysis pass.
+ ///
+ extern const PassInfo *MachineDominatorsID;
+
/// PHIElimination pass - This pass eliminates machine instruction PHI nodes
/// by inserting copy instructions. This destroys SSA information, but is
the
/// desired input for some register allocators. This pass is "required" by
Modified: llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp?rev=45596&r1=45595&r2=45596&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp (original)
+++ llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp Fri Jan 4 14:54:55 2008
@@ -60,6 +60,8 @@
void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addPreserved<LiveVariables>();
AU.addRequired<LiveVariables>();
+ AU.addPreservedID(MachineLoopInfoID);
+ AU.addPreservedID(MachineDominatorsID);
AU.addPreservedID(PHIEliminationID);
AU.addRequiredID(PHIEliminationID);
AU.addRequiredID(TwoAddressInstructionPassID);
Modified: llvm/trunk/lib/CodeGen/MachineDominators.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineDominators.cpp?rev=45596&r1=45595&r2=45596&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/MachineDominators.cpp (original)
+++ llvm/trunk/lib/CodeGen/MachineDominators.cpp Fri Jan 4 14:54:55 2008
@@ -13,12 +13,17 @@
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineDominators.h"
+#include "llvm/CodeGen/Passes.h"
using namespace llvm;
TEMPLATE_INSTANTIATION(class DomTreeNodeBase<MachineBasicBlock>);
TEMPLATE_INSTANTIATION(class DominatorTreeBase<MachineBasicBlock>);
-char MachineDominatorTree::ID = 0;
-static RegisterPass<MachineDominatorTree>
-E("machinedomtree", "MachineDominator Tree Construction", true);
+namespace {
+ char MachineDominatorTree::ID = 0;
+ RegisterPass<MachineDominatorTree>
+ E("machinedomtree", "MachineDominator Tree Construction", true);
+}
+
+const PassInfo *llvm::MachineDominatorsID = E.getPassInfo();
Modified: llvm/trunk/lib/CodeGen/MachineLoopInfo.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineLoopInfo.cpp?rev=45596&r1=45595&r2=45596&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/MachineLoopInfo.cpp (original)
+++ llvm/trunk/lib/CodeGen/MachineLoopInfo.cpp Fri Jan 4 14:54:55 2008
@@ -16,15 +16,20 @@
#include "llvm/CodeGen/MachineLoopInfo.h"
#include "llvm/CodeGen/MachineDominators.h"
+#include "llvm/CodeGen/Passes.h"
using namespace llvm;
TEMPLATE_INSTANTIATION(class LoopBase<MachineBasicBlock>);
TEMPLATE_INSTANTIATION(class LoopInfoBase<MachineBasicBlock>);
-char MachineLoopInfo::ID = 0;
-static RegisterPass<MachineLoopInfo>
-X("machine-loops", "Machine Natural Loop Construction", true);
+namespace {
+ char MachineLoopInfo::ID = 0;
+ RegisterPass<MachineLoopInfo>
+ X("machine-loops", "Machine Natural Loop Construction", true);
+}
+
+const PassInfo *llvm::MachineLoopInfoID = X.getPassInfo();
bool MachineLoopInfo::runOnMachineFunction(MachineFunction &) {
releaseMemory();
Modified: llvm/trunk/lib/CodeGen/PHIElimination.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/PHIElimination.cpp?rev=45596&r1=45595&r2=45596&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/PHIElimination.cpp (original)
+++ llvm/trunk/lib/CodeGen/PHIElimination.cpp Fri Jan 4 14:54:55 2008
@@ -51,6 +51,8 @@
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.addPreserved<LiveVariables>();
+ AU.addPreservedID(MachineLoopInfoID);
+ AU.addPreservedID(MachineDominatorsID);
MachineFunctionPass::getAnalysisUsage(AU);
}
Modified: llvm/trunk/lib/CodeGen/RegAllocLinearScan.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/RegAllocLinearScan.cpp?rev=45596&r1=45595&r2=45596&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/RegAllocLinearScan.cpp (original)
+++ llvm/trunk/lib/CodeGen/RegAllocLinearScan.cpp Fri Jan 4 14:54:55 2008
@@ -104,6 +104,8 @@
// to coalescing and which analyses coalescing invalidates.
AU.addRequiredTransitive<RegisterCoalescer>();
AU.addRequired<MachineLoopInfo>();
+ AU.addPreserved<MachineLoopInfo>();
+ AU.addPreservedID(MachineDominatorsID);
MachineFunctionPass::getAnalysisUsage(AU);
}
Modified: llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp?rev=45596&r1=45595&r2=45596&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp (original)
+++ llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp Fri Jan 4 14:54:55 2008
@@ -67,6 +67,8 @@
void SimpleRegisterCoalescing::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addPreserved<LiveIntervals>();
+ AU.addPreserved<MachineLoopInfo>();
+ AU.addPreservedID(MachineDominatorsID);
AU.addPreservedID(PHIEliminationID);
AU.addPreservedID(TwoAddressInstructionPassID);
AU.addRequired<LiveVariables>();
Modified: llvm/trunk/lib/CodeGen/TwoAddressInstructionPass.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/TwoAddressInstructionPass.cpp?rev=45596&r1=45595&r2=45596&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/TwoAddressInstructionPass.cpp (original)
+++ llvm/trunk/lib/CodeGen/TwoAddressInstructionPass.cpp Fri Jan 4 14:54:55
2008
@@ -69,6 +69,8 @@
void TwoAddressInstructionPass::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<LiveVariables>();
AU.addPreserved<LiveVariables>();
+ AU.addPreservedID(MachineLoopInfoID);
+ AU.addPreservedID(MachineDominatorsID);
AU.addPreservedID(PHIEliminationID);
MachineFunctionPass::getAnalysisUsage(AU);
}
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