//
// The LLVM Compiler Infrastructure
//
-// This file was developed by a team from the Computer Systems Research
-// Department at The Aerospace Corporation.
-//
-// See README.txt for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
getCalleeSaveSpillSlots(unsigned &NumEntries) const;
//! Stack slot size (16 bytes)
- static const int stackSlotSize() {
+ static int stackSlotSize() {
return 16;
}
//! Maximum frame offset representable by a signed 10-bit integer
This is the maximum frame offset that can be expressed as a 10-bit
integer, used in D-form addresses.
*/
- static const int maxFrameOffset() {
+ static int maxFrameOffset() {
return ((1 << 9) - 1) * stackSlotSize();
}
//! Minimum frame offset representable by a signed 10-bit integer
- static const int minFrameOffset() {
+ static int minFrameOffset() {
return -(1 << 9) * stackSlotSize();
}
//! Minimum frame size (enough to spill LR + SP)
- static const int minStackSize() {
+ static int minStackSize() {
return (2 * stackSlotSize());
}
//! Frame size required to spill all registers plus frame info
- static const int fullSpillSize() {
+ static int fullSpillSize() {
return (SPURegisterInfo::getNumArgRegs() * stackSlotSize());
}
+ //! Convert frame index to stack offset
+ static int FItoStackOffset(int frame_index) {
+ return frame_index * stackSlotSize();
+ }
//! Number of instructions required to overcome hint-for-branch latency
/*!
HBR (hint-for-branch) instructions can be inserted when, for example,
of instructions occurs between the HBR and the target. Currently, HBRs
take 6 cycles, ergo, the magic number 6.
*/
- static const int branchHintPenalty() {
+ static int branchHintPenalty() {
return 6;
}
};