[llvm-commits] CVS: llvm/lib/Target/Sparc/Sparc.cpp

[Misha Brukman]

Changes in directory llvm/lib/Target/Sparc:

Sparc.cpp updated: 1.66 -> 1.67

---
Log message:

* Removed PreSelection pass because that is now done in the JIT
* Removed instruction scheduling as it is too slow to run in a JIT environment
* Removed other passes because they aren't necessary and can slow JIT down


---
Diffs of the changes:

Index: llvm/lib/Target/Sparc/Sparc.cpp
diff -u llvm/lib/Target/Sparc/Sparc.cpp:1.66 llvm/lib/Target/Sparc/Sparc.cpp:1.67
--- llvm/lib/Target/Sparc/Sparc.cpp:1.66	Wed Jun  4 17:07:12 2003
+++ llvm/lib/Target/Sparc/Sparc.cpp	Fri Jun  6 02:11:16 2003
@@ -198,34 +198,24 @@
 // generation for the UltraSparc.
 //
 bool UltraSparc::addPassesToJITCompile(PassManager &PM) {
+  const TargetData &TD = getTargetData();
+
+  PM.add(new TargetData("lli", TD.isLittleEndian(), TD.getPointerSize(),
+                        TD.getPointerAlignment(), TD.getDoubleAlignment()));
+
+  // Replace malloc and free instructions with library calls.
+  // Do this after tracing until lli implements these lib calls.
+  // For now, it will emulate malloc and free internally.
+  PM.add(createLowerAllocationsPass());
+
   // FIXME: implement the switch instruction in the instruction selector.
   PM.add(createLowerSwitchPass());
 
   // Construct and initialize the MachineFunction object for this fn.
   PM.add(createMachineCodeConstructionPass(*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 0
-  if (!DisablePreSelect) {
-    PM.add(createPreSelectionPass(*this));
-    PM.add(createReassociatePass());
-    PM.add(createLICMPass());
-    PM.add(createGCSEPass());
-  }
-#endif
-
   PM.add(createInstructionSelectionPass(*this));
 
-#if 0
-  if (!DisableSched)
-    PM.add(createInstructionSchedulingWithSSAPass(*this));
-#endif
-
   // new pass: convert Value* in MachineOperand to an unsigned register
   // this brings it in line with what the X86 JIT's RegisterAllocator expects
   //PM.add(createAddRegNumToValuesPass());
@@ -233,10 +223,8 @@
   PM.add(getRegisterAllocator(*this));
   PM.add(getPrologEpilogInsertionPass());
 
-#if 0
   if (!DisablePeephole)
     PM.add(createPeepholeOptsPass(*this));
-#endif
 
   return false; // success!
 }