//===-- SparcV9RegClassInfo.h - Register class def'ns for SparcV9 -*- C++ -*-=//
-//
+//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+//
//===----------------------------------------------------------------------===//
//
// This file defines the register classes used by the SparcV9 target. It
//-----------------------------------------------------------------------------
struct SparcV9IntRegClass : public TargetRegClassInfo {
- SparcV9IntRegClass(unsigned ID)
+ SparcV9IntRegClass(unsigned ID)
: TargetRegClassInfo(ID, NumOfAvailRegs, NumOfAllRegs) { }
void colorIGNode(IGNode *Node,
const std::vector<bool> &IsColorUsedArr) const;
inline bool isRegVolatile(int Reg) const {
- return (Reg < (int)StartOfNonVolatileRegs);
+ return (Reg < (int)StartOfNonVolatileRegs);
}
inline bool modifiedByCall(int Reg) const {
enum { // colors possible for a LR (in preferred order)
// --- following colors are volatile across function calls
// %g0 can't be used for coloring - always 0
- o0, o1, o2, o3, o4, o5, o7, // %o0-%o5,
+ o0, o1, o2, o3, o4, o5, o7, // %o0-%o5,
- // %o6 is sp,
+ // %o6 is sp,
// all %0's can get modified by a call
// --- following colors are NON-volatile across function calls
l0, l1, l2, l3, l4, l5, l6, l7, // %l0-%l7
- i0, i1, i2, i3, i4, i5, // %i0-%i5: i's need not be preserved
-
+ i0, i1, i2, i3, i4, i5, // %i0-%i5: i's need not be preserved
+
// %i6 is the fp - so not allocated
// %i7 is the ret address by convention - can be used for others
// max # of colors reg coloring can allocate (NumOfAvailRegs)
// --- following colors are not available for allocation within this phase
- // --- but can appear for pre-colored ranges
+ // --- but can appear for pre-colored ranges
i6, i7, g0, g1, g2, g3, g4, g5, g6, g7, o6,
NumOfAllRegs, // Must be first AFTER registers...
-
+
//*** NOTE: If we decide to use some %g regs, they are volatile
// (see sparc64ABI)
// Move the %g regs from the end of the enumeration to just above the
StartOfNonVolatileRegs = l0,
StartOfAllRegs = o0,
-
+
ModifiedByCall = o7,
};
unsigned End,
const std::vector<bool> &IsColorUsedArr) const;
public:
- SparcV9FloatRegClass(unsigned ID)
+ SparcV9FloatRegClass(unsigned ID)
: TargetRegClassInfo(ID, NumOfAvailRegs, NumOfAllRegs) {}
// This method marks the registers used for a given register number.
// This marks a single register for Float regs, but the R,R+1 pair
// for double-precision registers.
- //
+ //
virtual void markColorsUsed(unsigned RegInClass,
int UserRegType,
int RegTypeWanted,
std::vector<bool> &IsColorUsedArr) const;
-
+
// This method finds unused registers of the specified register type,
// using the given "used" flag array IsColorUsedArr. It checks a single
// entry in the array directly for float regs, and checks the pair [R,R+1]
// for double-precision registers
// It returns -1 if no unused color is found.
- //
+ //
virtual int findUnusedColor(int RegTypeWanted,
const std::vector<bool> &IsColorUsedArr) const;
inline bool isRegVolatile(int Reg) const { return true; }
enum {
- f0, f1, f2, f3, f4, f5, f6, f7, f8, f9,
+ f0, f1, f2, f3, f4, f5, f6, f7, f8, f9,
f10, f11, f12, f13, f14, f15, f16, f17, f18, f19,
f20, f21, f22, f23, f24, f25, f26, f27, f28, f29,
f30, f31, f32, f33, f34, f35, f36, f37, f38, f39,
//-----------------------------------------------------------------------------
// Int CC Register Class
// Only one integer cc register is available. However, this register is
-// referred to as %xcc or %icc when instructions like subcc are executed but
+// referred to as %xcc or %icc when instructions like subcc are executed but
// referred to as %ccr (i.e., %xcc . %icc") when this register is moved
// into an integer register using RD or WR instrcutions. So, three ids are
// allocated for the three names.
//-----------------------------------------------------------------------------
struct SparcV9IntCCRegClass : public TargetRegClassInfo {
- SparcV9IntCCRegClass(unsigned ID)
+ SparcV9IntCCRegClass(unsigned ID)
: TargetRegClassInfo(ID, 1, 3) { }
-
+
void colorIGNode(IGNode *Node,
const std::vector<bool> &IsColorUsedArr) const;
//-----------------------------------------------------------------------------
struct SparcV9FloatCCRegClass : public TargetRegClassInfo {
- SparcV9FloatCCRegClass(unsigned ID)
+ SparcV9FloatCCRegClass(unsigned ID)
: TargetRegClassInfo(ID, 4, 4) { }
void colorIGNode(IGNode *Node,
const std::vector<bool> &IsColorUsedArr) const;
-
+
// according to the 64-bit SparcV9 ABI, all floating-point CC regs are
// volatile.
inline bool isRegVolatile(int Reg) const { return true; }
enum {
fcc0, fcc1, fcc2, fcc3
};
-
+
const char * const getRegName(unsigned reg) const;
};
//-----------------------------------------------------------------------------
struct SparcV9SpecialRegClass : public TargetRegClassInfo {
- SparcV9SpecialRegClass(unsigned ID)
+ SparcV9SpecialRegClass(unsigned ID)
: TargetRegClassInfo(ID, 0, 1) { }
void colorIGNode(IGNode *Node,
const std::vector<bool> &IsColorUsedArr) const {
assert(0 && "SparcV9SpecialRegClass should never be used for allocation");
}
-
+
// all currently included special regs are volatile
inline bool isRegVolatile(int Reg) const { return true; }
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