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

[Chris Lattner]

Changes in directory llvm/lib/Target/PowerPC:

PowerPCTargetMachine.cpp updated: 1.44 -> 1.45
---
Log message:

Add a temporary option for llc-beta: -enable-lsr-for-ppc, which turns on
Loop Strength Reduction.


---
Diffs of the changes:  (+10 -0)

 PowerPCTargetMachine.cpp |   10 ++++++++++
 1 files changed, 10 insertions(+)


Index: llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp
diff -u llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp:1.44 llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp:1.45
--- llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp:1.44	Sun Dec 12 11:40:24 2004
+++ llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp	Wed Mar  2 00:19:22 2005
@@ -33,6 +33,10 @@
   cl::opt<bool> AIX("aix", 
                     cl::desc("Generate AIX/xcoff instead of Darwin/MachO"), 
                     cl::Hidden);
+
+  cl::opt<bool> EnablePPCLSR("enable-lsr-for-ppc", 
+                             cl::desc("Enable LSR for PPC (beta option!)"), 
+                             cl::Hidden);
 }
 
 namespace {
@@ -70,6 +74,9 @@
 bool PowerPCTargetMachine::addPassesToEmitAssembly(PassManager &PM,
                                                    std::ostream &Out) {
   bool LP64 = (0 != dynamic_cast<PPC64TargetMachine *>(this));
+
+  if (EnablePPCLSR)
+    PM.add(createLoopStrengthReducePass());
   
   // FIXME: Implement efficient support for garbage collection intrinsics.
   PM.add(createLowerGCPass());
@@ -113,6 +120,9 @@
 }
 
 void PowerPCJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
+  if (EnablePPCLSR)
+    PM.add(createLoopStrengthReducePass());
+
   // FIXME: Implement efficient support for garbage collection intrinsics.
   PM.add(createLowerGCPass());