[llvm-commits] CVS: llvm-poolalloc/lib/PoolAllocate/PointerCompress.cpp

[Chris Lattner]

Changes in directory llvm-poolalloc/lib/PoolAllocate:

PointerCompress.cpp updated: 1.16 -> 1.17
---
Log message:

Implement compression of return instructions.  This allows us to pointer
compress Olden/treeadd successfully.


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

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


Index: llvm-poolalloc/lib/PoolAllocate/PointerCompress.cpp
diff -u llvm-poolalloc/lib/PoolAllocate/PointerCompress.cpp:1.16 llvm-poolalloc/lib/PoolAllocate/PointerCompress.cpp:1.17
--- llvm-poolalloc/lib/PoolAllocate/PointerCompress.cpp:1.16	Wed Feb 16 12:11:12 2005
+++ llvm-poolalloc/lib/PoolAllocate/PointerCompress.cpp	Wed Feb 16 12:19:42 2005
@@ -410,6 +410,7 @@
     // Visitation methods.  These do all of the heavy lifting for the various
     // cases we have to handle.
 
+    void visitReturnInst(ReturnInst &RI);
     void visitCastInst(CastInst &CI);
     void visitPHINode(PHINode &PN);
     void visitSetCondInst(SetCondInst &SCI);
@@ -460,6 +461,15 @@
   }
 }
 
+void InstructionRewriter::visitReturnInst(ReturnInst &RI) {
+  if (RI.getNumOperands() && isa<PointerType>(RI.getOperand(0)->getType()))
+    if (!isa<PointerType>(RI.getParent()->getParent()->getReturnType())) {
+      // Compressing the return value.  
+      new ReturnInst(getTransformedValue(RI.getOperand(0)), &RI);
+      RI.eraseFromParent();
+    }
+}
+
 
 void InstructionRewriter::visitCastInst(CastInst &CI) {
   if (!isa<PointerType>(CI.getType())) return;