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encode size information into each ValueType

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Add new RegisterInfo class


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7469 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-08-01 05:18:03 +00:00
parent accd8abeeb
commit de04dd746f
1 changed files with 33 additions and 11 deletions
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44
lib/Target/Target.td
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@ -11,18 +11,18 @@
// Value types - These values correspond to the register types defined in the
// ValueTypes.h file.
//
class ValueType { string Namespace = "MVT"; }
class ValueType<int size> { string Namespace = "MVT"; int Size = size; }
def i1 : ValueType; // One bit boolean value
def i8 : ValueType; // 8-bit integer value
def i16 : ValueType; // 16-bit integer value
def i32 : ValueType; // 32-bit integer value
def i64 : ValueType; // 64-bit integer value
def i128 : ValueType; // 128-bit integer value
def f32 : ValueType; // 32-bit floating point value
def f64 : ValueType; // 64-bit floating point value
def f80 : ValueType; // 80-bit floating point value
def f128 : ValueType; // 128-bit floating point value
def i1 : ValueType<1>; // One bit boolean value
def i8 : ValueType<8>; // 8-bit integer value
def i16 : ValueType<16>; // 16-bit integer value
def i32 : ValueType<32>; // 32-bit integer value
def i64 : ValueType<64>; // 64-bit integer value
def i128 : ValueType<128>; // 128-bit integer value
def f32 : ValueType<32>; // 32-bit floating point value
def f64 : ValueType<64>; // 64-bit floating point value
def f80 : ValueType<80>; // 80-bit floating point value
def f128 : ValueType<128>; // 128-bit floating point value
//===----------------------------------------------------------------------===//
@ -61,6 +61,7 @@ class RegisterClass<ValueType regType, int alignment, list<Register> regList> {
// Alignment - Specify the alignment required of the registers when they are
// stored or loaded to memory.
//
int Size = RegType.Size;
int Alignment = alignment;
// MemberList - Specify which registers are in this class. If the
@ -76,6 +77,27 @@ class RegisterClass<ValueType regType, int alignment, list<Register> regList> {
code allocation_order_end;
}
// RegisterInfo - This class should only be instantiated once to provide
// parameters which are global to the the target machine, such as callee safed
// registers.
//
class RegisterInfo {
// ClassName - Specify the name of the class that should be generated by the
// register info emitter. This class may be further subclasses by custom
// target code to implement virtual methods as necessary. Targets must
// specify a value for this.
//
string ClassName;
// CalleeSavedRegisters - As you might guess, this is a list of the callee
// saved registers for a target.
list<Register> CalleeSavedRegisters = [];
// PointerType - Specify the value type to be used to represent pointers in
// this target. Typically this is an i32 or i64 type.
ValueType PointerType;
}
//===----------------------------------------------------------------------===//
// Instruction set description -