Remove incorrect comments. These are not disassmebly only patterns.

[oota-llvm.git] / lib / Target / PTX / PTXRegisterInfo.cpp

diff --git a/lib/Target/PTX/PTXRegisterInfo.cpp b/lib/Target/PTX/PTXRegisterInfo.cpp
index 0f3e7bc2c3a779a2aeb2a187b226e78b4f6fe601..d19b63e317670b17de3196c75be712eaaf3ef939 100644 (file)
--- a/lib/Target/PTX/PTXRegisterInfo.cpp
+++ b/lib/Target/PTX/PTXRegisterInfo.cpp
@@ -13,7 +13,40 @@
 
 #include "PTX.h"
 #include "PTXRegisterInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
+
+#define GET_REGINFO_TARGET_DESC
+#include "PTXGenRegisterInfo.inc"
 
 using namespace llvm;
 
-#include "PTXGenRegisterInfo.inc"
+PTXRegisterInfo::PTXRegisterInfo(PTXTargetMachine &TM,
+                                 const TargetInstrInfo &TII)
+  // PTX does not have a return address register.
+  : PTXGenRegisterInfo(0) {
+}
+
+void PTXRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
+                                          int SPAdj,
+                                          RegScavenger *RS) const {
+  unsigned Index;
+  MachineInstr& MI = *II;
+
+  Index = 0;
+  while (!MI.getOperand(Index).isFI()) {
+    ++Index;
+    assert(Index < MI.getNumOperands() &&
+           "Instr does not have a FrameIndex operand!");
+  }
+
+  int FrameIndex = MI.getOperand(Index).getIndex();
+
+  DEBUG(dbgs() << "eliminateFrameIndex: " << MI);
+  DEBUG(dbgs() << "- SPAdj: " << SPAdj << "\n");
+  DEBUG(dbgs() << "- FrameIndex: " << FrameIndex << "\n");
+
+  // This frame index is post stack slot re-use assignments
+  MI.getOperand(Index).ChangeToImmediate(FrameIndex);
+}