Move addPassesToEmitAssembly from TargetMachine to UltraSparc because it
really is sparc specific.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4308 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SparcV9/SparcV9TargetMachine.cpp b/lib/Target/SparcV9/SparcV9TargetMachine.cpp
index 2484ace..7ec0a34 100644
--- a/lib/Target/SparcV9/SparcV9TargetMachine.cpp
+++ b/lib/Target/SparcV9/SparcV9TargetMachine.cpp
@@ -8,7 +8,19 @@
#include "SparcInternals.h"
#include "llvm/Target/Sparc.h"
#include "llvm/Function.h"
+#include "llvm/PassManager.h"
+#include "llvm/Transforms/Scalar.h"
#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/PreSelection.h"
+#include "llvm/CodeGen/StackSlots.h"
+#include "llvm/CodeGen/PeepholeOpts.h"
+#include "llvm/CodeGen/InstrSelection.h"
+#include "llvm/CodeGen/InstrScheduling.h"
+#include "llvm/CodeGen/RegisterAllocation.h"
+#include "llvm/CodeGen/MachineCodeForInstruction.h"
+#include "llvm/Reoptimizer/Mapping/MappingInfo.h"
+#include "llvm/Reoptimizer/Mapping/FInfo.h"
+#include "Support/CommandLine.h"
using std::cerr;
// Build the MachineInstruction Description Array...
@@ -20,6 +32,19 @@
#include "SparcInstr.def"
};
+//---------------------------------------------------------------------------
+// Command line options to control choice of code generation passes.
+//---------------------------------------------------------------------------
+
+static cl::opt<bool> DisablePreSelect("nopreselect",
+ cl::desc("Disable preselection pass"));
+
+static cl::opt<bool> DisableSched("nosched",
+ cl::desc("Disable local scheduling pass"));
+
+static cl::opt<bool> DisablePeephole("nopeephole",
+ cl::desc("Disable peephole optimization pass"));
+
//----------------------------------------------------------------------------
// allocateSparcTargetMachine - Allocate and return a subclass of TargetMachine
// that implements the Sparc backend. (the llvm/CodeGen/Sparc.h interface)
@@ -88,6 +113,47 @@
return offset;
}
+//===---------------------------------------------------------------------===//
+// Default code generation passes.
+//
+// Native code generation for a specified target.
+//===---------------------------------------------------------------------===//
+
+class ConstructMachineCodeForFunction : public FunctionPass {
+ TargetMachine &Target;
+public:
+ ConstructMachineCodeForFunction(TargetMachine &T) : Target(T) {}
+
+ const char *getPassName() const {
+ return "ConstructMachineCodeForFunction";
+ }
+
+ bool runOnFunction(Function &F) {
+ MachineFunction::construct(&F, Target);
+ return false;
+ }
+};
+
+struct FreeMachineCodeForFunction : public FunctionPass {
+ const char *getPassName() const { return "FreeMachineCodeForFunction"; }
+
+ static void freeMachineCode(Instruction &I) {
+ MachineCodeForInstruction::destroy(&I);
+ }
+
+ bool runOnFunction(Function &F) {
+ for (Function::iterator FI = F.begin(), FE = F.end(); FI != FE; ++FI)
+ for (BasicBlock::iterator I = FI->begin(), E = FI->end(); I != E; ++I)
+ MachineCodeForInstruction::get(I).dropAllReferences();
+
+ for (Function::iterator FI = F.begin(), FE = F.end(); FI != FE; ++FI)
+ for_each(FI->begin(), FI->end(), freeMachineCode);
+
+ return false;
+ }
+};
+
+
//---------------------------------------------------------------------------
// class UltraSparcMachine
@@ -114,3 +180,56 @@
maxAtomicMemOpWordSize = 8;
}
+
+// addPassesToEmitAssembly - This method controls the entire code generation
+// process for the ultra sparc.
+//
+void UltraSparc::addPassesToEmitAssembly(PassManager &PM, std::ostream &Out)
+{
+ // Construct and initialize the MachineFunction object for this fn.
+ PM.add(new ConstructMachineCodeForFunction(*this));
+
+ //Insert empty stackslots in the stack frame of each function
+ //so %fp+offset-8 and %fp+offset-16 are empty slots now!
+ PM.add(createStackSlotsPass(*this));
+
+ // Specialize LLVM code for this target machine and then
+ // run basic dataflow optimizations on LLVM code.
+ if (!DisablePreSelect)
+ {
+ PM.add(createPreSelectionPass(*this));
+ /* PM.add(createReassociatePass()); */
+ PM.add(createLICMPass());
+ PM.add(createGCSEPass());
+ }
+
+ PM.add(createInstructionSelectionPass(*this));
+
+ if (!DisableSched)
+ PM.add(createInstructionSchedulingWithSSAPass(*this));
+
+ PM.add(getRegisterAllocator(*this));
+
+ PM.add(getPrologEpilogInsertionPass());
+
+ if (!DisablePeephole)
+ PM.add(createPeepholeOptsPass(*this));
+
+ PM.add(MappingInfoForFunction(Out));
+
+ // Output assembly language to the .s file. Assembly emission is split into
+ // two parts: Function output and Global value output. This is because
+ // function output is pipelined with all of the rest of code generation stuff,
+ // allowing machine code representations for functions to be free'd after the
+ // function has been emitted.
+ //
+ PM.add(getFunctionAsmPrinterPass(Out));
+ PM.add(new FreeMachineCodeForFunction()); // Free stuff no longer needed
+
+ // Emit Module level assembly after all of the functions have been processed.
+ PM.add(getModuleAsmPrinterPass(Out));
+
+ // Emit bytecode to the assembly file into its special section next
+ PM.add(getEmitBytecodeToAsmPass(Out));
+ PM.add(getFunctionInfo(Out));
+}