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Unify all constant evaluations that depend on register size

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in TargetInstrInfo::ConvertConstantToIntType.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7398 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vikram S. Adve 2003-07-29 20:30:20 +00:00
parent b3b0414c87
commit 588668d468
1 changed files with 16 additions and 0 deletions
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16
include/llvm/Target/TargetInstrInfo.h
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@ -14,6 +14,7 @@
class MachineInstr;
class TargetMachine;
class Value;
class Type;
class Instruction;
class Constant;
class Function;
@ -300,6 +301,21 @@ public:
//
virtual MachineOpCode getNOPOpCode() const { abort(); }
// Get the value of an integral constant in the form that must
// be put into the machine register. The specified constant is interpreted
// as (i.e., converted if necessary to) the specified destination type. The
// result is always returned as an uint64_t, since the representation of
// int64_t and uint64_t are identical. The argument can be any known const.
//
// isValidConstant is set to true if a valid constant was found.
//
virtual uint64_t ConvertConstantToIntType(const TargetMachine &target,
const Value *V,
const Type *destType,
bool &isValidConstant) const {
abort();
}
// Create an instruction sequence to put the constant `val' into
// the virtual register `dest'. `val' may be a Constant or a
// GlobalValue, viz., the constant address of a global variable or function.