Treat TargetGlobalAddress as a constant for the purpose of matching pre-inc stores...

[oota-llvm.git] / lib / Target / PowerPC / PPCRegisterInfo.cpp

diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 76402ef978a3f2e8d5b526314d69d0b3f0fbb6d4..ab8bf1f93a37eb23a328acfd3a82cc9635b72ff1 100644 (file)
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -199,6 +199,20 @@ PPCRegisterInfo::getRegPressureLimit(const TargetRegisterClass *RC,
   }
 }
 
+bool
+PPCRegisterInfo::avoidWriteAfterWrite(const TargetRegisterClass *RC) const {
+  switch (RC->getID()) {
+  case PPC::G8RCRegClassID:
+  case PPC::GPRCRegClassID:
+  case PPC::F8RCRegClassID:
+  case PPC::F4RCRegClassID:
+  case PPC::VRRCRegClassID:
+    return true;
+  default:
+    return false;
+  }
+}
+
 //===----------------------------------------------------------------------===//
 // Stack Frame Processing methods
 //===----------------------------------------------------------------------===//