[llvm-commits] CVS: llvm/lib/Target/SparcV9/SparcV9InstrInfo.cpp

[Brian Gaeke]

Changes in directory llvm/lib/Target/SparcV9:

SparcV9InstrInfo.cpp updated: 1.65 -> 1.66

---
Log message:

Turn loads of ConstantPointerNulls into loads of zero... don't spill
them into the constant pool.


---
Diffs of the changes:  (+6 -0)

Index: llvm/lib/Target/SparcV9/SparcV9InstrInfo.cpp
diff -u llvm/lib/Target/SparcV9/SparcV9InstrInfo.cpp:1.65 llvm/lib/Target/SparcV9/SparcV9InstrInfo.cpp:1.66
--- llvm/lib/Target/SparcV9/SparcV9InstrInfo.cpp:1.65	Wed Jun  2 00:54:42 2004
+++ llvm/lib/Target/SparcV9/SparcV9InstrInfo.cpp	Thu Jun 10 21:03:48 2004
@@ -74,6 +74,12 @@
     return (uint64_t) CB->getValue();
   }
 
+  // ConstantPointerNull: it's really just a big, shiny version of zero.
+  if (const ConstantPointerNull *CPN = dyn_cast<ConstantPointerNull>(V)) {
+    isValidConstant = true;
+    return 0;
+  }
+
   // For other types of constants, some conversion may be needed.
   // First, extract the constant operand according to its own type
   if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(V))