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add F0 and F1 to the FP register class 

llvm-svn: 24151
This commit is contained in:
Duraid Madina 2005-11-02 07:30:39 +00:00
parent b5310bdbe9
commit 4480dcdcea
1 changed files with 19 additions and 3 deletions
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22
llvm/lib/Target/IA64/IA64RegisterInfo.td
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@ -226,7 +226,6 @@ def B6 : GR<0, "b6">;
//
// these are the scratch (+stacked) general registers
// ZERO (r0), GP (r1), SP (r12), ThreadP (r13) are not here...
// FIXME/XXX we also reserve a frame pointer (r15)
// FIXME/XXX we also reserve r2 for spilling/filling predicates
// in IA64RegisterInfo.cpp
@ -283,7 +282,6 @@ def GR : RegisterClass<"IA64", i64, 64,
// these are the scratch (+stacked) FP registers
// ZERO (F0) and ONE (F1) are not here
def FP : RegisterClass<"IA64", f64, 64,
[F6, F7,
F8, F9, F10, F11, F12, F13, F14, F15,
@ -298,7 +296,25 @@ def FP : RegisterClass<"IA64", f64, 64,
F96, F97, F98, F99, F100, F101, F102, F103,
F104, F105, F106, F107, F108, F109, F110, F111,
F112, F113, F114, F115, F116, F117, F118, F119,
F120, F121, F122, F123, F124, F125, F126, F127]>;
F120, F121, F122, F123, F124, F125, F126, F127,
F0, F1]> // these last two are hidden
{
let MethodProtos = [{
iterator allocation_order_begin(MachineFunction &MF) const;
iterator allocation_order_end(MachineFunction &MF) const;
}];
let MethodBodies = [{
FPClass::iterator
FPClass::allocation_order_begin(MachineFunction &MF) const {
return begin(); // we don't hide any FP regs from the start
}
FPClass::iterator
FPClass::allocation_order_end(MachineFunction &MF) const {
return end()-2; // we hide regs F0, F1 from the end
}
}];
}
// these are the predicate registers, p0 (1/TRUE) is not here
def PR : RegisterClass<"IA64", i1, 64,