6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-30 19:35:54 +00:00
Code Issues Projects Releases Wiki Activity

Factor several methods, including getInversePredicate and

Browse Source 
getSwappedPredicate, from ICmpInst and FCmpInst into common
methods in CmpInst. This allows CmpInsts to be manipulated
generically.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51810 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2008-05-31 02:47:54 +00:00
parent e4c67cdab4
commit 7e2dd6628e
3 changed files with 63 additions and 115 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
include/llvm/InstrTypes.h
View File

@ -656,17 +656,41 @@ public:
return static_cast<OtherOps>(Instruction::getOpcode());
}
/// The predicate for CmpInst is defined by the subclasses but stored in
/// the SubclassData field (see Value.h). We allow it to be fetched here
/// as the predicate but there is no enum type for it, just the raw unsigned
/// short. This facilitates comparison of CmpInst instances without delving
/// into the subclasses since predicate values are distinct between the
/// CmpInst subclasses.
/// @brief Return the predicate for this instruction.
unsigned short getPredicate() const {
return SubclassData;
Predicate getPredicate() const { return Predicate(SubclassData); }
/// @brief Set the predicate for this instruction to the specified value.
void setPredicate(Predicate P) { SubclassData = P; }
/// For example, EQ -> NE, UGT -> ULE, SLT -> SGE,
/// OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc.
/// @returns the inverse predicate for the instruction's current predicate.
/// @brief Return the inverse of the instruction's predicate.
Predicate getInversePredicate() const {
return getInversePredicate(getPredicate());
}
/// For example, EQ -> NE, UGT -> ULE, SLT -> SGE,
/// OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc.
/// @returns the inverse predicate for predicate provided in \p pred.
/// @brief Return the inverse of a given predicate
static Predicate getInversePredicate(Predicate pred);
/// For example, EQ->EQ, SLE->SGE, ULT->UGT,
/// OEQ->OEQ, ULE->UGE, OLT->OGT, etc.
/// @returns the predicate that would be the result of exchanging the two
/// operands of the CmpInst instruction without changing the result
/// produced.
/// @brief Return the predicate as if the operands were swapped
Predicate getSwappedPredicate() const {
return getSwappedPredicate(getPredicate());
}
/// This is a static version that you can use without an instruction
/// available.
/// @brief Return the predicate as if the operands were swapped.
static Predicate getSwappedPredicate(Predicate pred);
/// @brief Provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);

64
include/llvm/Instructions.h
View File

@ -650,38 +650,6 @@ public:
"Invalid operand types for ICmp instruction");
}
/// @brief Return the predicate for this instruction.
Predicate getPredicate() const { return Predicate(SubclassData); }
/// @brief Set the predicate for this instruction to the specified value.
void setPredicate(Predicate P) { SubclassData = P; }
/// For example, EQ -> NE, UGT -> ULE, SLT -> SGE, etc.
/// @returns the inverse predicate for the instruction's current predicate.
/// @brief Return the inverse of the instruction's predicate.
Predicate getInversePredicate() const {
return getInversePredicate(getPredicate());
}
/// For example, EQ -> NE, UGT -> ULE, SLT -> SGE, etc.
/// @returns the inverse predicate for predicate provided in \p pred.
/// @brief Return the inverse of a given predicate
static Predicate getInversePredicate(Predicate pred);
/// For example, EQ->EQ, SLE->SGE, ULT->UGT, etc.
/// @returns the predicate that would be the result of exchanging the two
/// operands of the ICmpInst instruction without changing the result
/// produced.
/// @brief Return the predicate as if the operands were swapped
Predicate getSwappedPredicate() const {
return getSwappedPredicate(getPredicate());
}
/// This is a static version that you can use without an instruction
/// available.
/// @brief Return the predicate as if the operands were swapped.
static Predicate getSwappedPredicate(Predicate pred);
/// For example, EQ->EQ, SLE->SLE, UGT->SGT, etc.
/// @returns the predicate that would be the result if the operand were
/// regarded as signed.
@ -830,38 +798,6 @@ public:
"Invalid operand types for FCmp instruction");
}
/// @brief Return the predicate for this instruction.
Predicate getPredicate() const { return Predicate(SubclassData); }
/// @brief Set the predicate for this instruction to the specified value.
void setPredicate(Predicate P) { SubclassData = P; }
/// For example, OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc.
/// @returns the inverse predicate for the instructions current predicate.
/// @brief Return the inverse of the predicate
Predicate getInversePredicate() const {
return getInversePredicate(getPredicate());
}
/// For example, OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc.
/// @returns the inverse predicate for \p pred.
/// @brief Return the inverse of a given predicate
static Predicate getInversePredicate(Predicate pred);
/// For example, OEQ->OEQ, ULE->UGE, OLT->OGT, etc.
/// @returns the predicate that would be the result of exchanging the two
/// operands of the ICmpInst instruction without changing the result
/// produced.
/// @brief Return the predicate as if the operands were swapped
Predicate getSwappedPredicate() const {
return getSwappedPredicate(getPredicate());
}
/// This is a static version that you can use without an instruction
/// available.
/// @brief Return the predicate as if the operands were swapped.
static Predicate getSwappedPredicate(Predicate Opcode);
/// This also tests for commutativity. If isEquality() returns true then
/// the predicate is also commutative. Only the equality predicates are
/// commutative.

74
lib/VMCore/Instructions.cpp
View File

@ -2497,10 +2497,9 @@ bool CmpInst::isEquality() {
}
ICmpInst::Predicate ICmpInst::getInversePredicate(Predicate pred) {
CmpInst::Predicate CmpInst::getInversePredicate(Predicate pred) {
switch (pred) {
default:
assert(!"Unknown icmp predicate!");
default: assert(!"Unknown cmp predicate!");
case ICMP_EQ: return ICMP_NE;
case ICMP_NE: return ICMP_EQ;
case ICMP_UGT: return ICMP_ULE;
@ -2511,22 +2510,23 @@ ICmpInst::Predicate ICmpInst::getInversePredicate(Predicate pred) {
case ICMP_SLT: return ICMP_SGE;
case ICMP_SGE: return ICMP_SLT;
case ICMP_SLE: return ICMP_SGT;
}
}
ICmpInst::Predicate ICmpInst::getSwappedPredicate(Predicate pred) {
switch (pred) {
default: assert(! "Unknown icmp predicate!");
case ICMP_EQ: case ICMP_NE:
return pred;
case ICMP_SGT: return ICMP_SLT;
case ICMP_SLT: return ICMP_SGT;
case ICMP_SGE: return ICMP_SLE;
case ICMP_SLE: return ICMP_SGE;
case ICMP_UGT: return ICMP_ULT;
case ICMP_ULT: return ICMP_UGT;
case ICMP_UGE: return ICMP_ULE;
case ICMP_ULE: return ICMP_UGE;
case FCMP_OEQ: return FCMP_UNE;
case FCMP_ONE: return FCMP_UEQ;
case FCMP_OGT: return FCMP_ULE;
case FCMP_OLT: return FCMP_UGE;
case FCMP_OGE: return FCMP_ULT;
case FCMP_OLE: return FCMP_UGT;
case FCMP_UEQ: return FCMP_ONE;
case FCMP_UNE: return FCMP_OEQ;
case FCMP_UGT: return FCMP_OLE;
case FCMP_ULT: return FCMP_OGE;
case FCMP_UGE: return FCMP_OLT;
case FCMP_ULE: return FCMP_OGT;
case FCMP_ORD: return FCMP_UNO;
case FCMP_UNO: return FCMP_ORD;
case FCMP_TRUE: return FCMP_FALSE;
case FCMP_FALSE: return FCMP_TRUE;
}
}
@ -2602,32 +2602,20 @@ ICmpInst::makeConstantRange(Predicate pred, const APInt &C) {
return ConstantRange(Lower, Upper);
}
FCmpInst::Predicate FCmpInst::getInversePredicate(Predicate pred) {
CmpInst::Predicate CmpInst::getSwappedPredicate(Predicate pred) {
switch (pred) {
default:
assert(!"Unknown icmp predicate!");
case FCMP_OEQ: return FCMP_UNE;
case FCMP_ONE: return FCMP_UEQ;
case FCMP_OGT: return FCMP_ULE;
case FCMP_OLT: return FCMP_UGE;
case FCMP_OGE: return FCMP_ULT;
case FCMP_OLE: return FCMP_UGT;
case FCMP_UEQ: return FCMP_ONE;
case FCMP_UNE: return FCMP_OEQ;
case FCMP_UGT: return FCMP_OLE;
case FCMP_ULT: return FCMP_OGE;
case FCMP_UGE: return FCMP_OLT;
case FCMP_ULE: return FCMP_OGT;
case FCMP_ORD: return FCMP_UNO;
case FCMP_UNO: return FCMP_ORD;
case FCMP_TRUE: return FCMP_FALSE;
case FCMP_FALSE: return FCMP_TRUE;
}
}
FCmpInst::Predicate FCmpInst::getSwappedPredicate(Predicate pred) {
switch (pred) {
default: assert(!"Unknown fcmp predicate!");
default: assert(!"Unknown cmp predicate!");
case ICMP_EQ: case ICMP_NE:
return pred;
case ICMP_SGT: return ICMP_SLT;
case ICMP_SLT: return ICMP_SGT;
case ICMP_SGE: return ICMP_SLE;
case ICMP_SLE: return ICMP_SGE;
case ICMP_UGT: return ICMP_ULT;
case ICMP_ULT: return ICMP_UGT;
case ICMP_UGE: return ICMP_ULE;
case ICMP_ULE: return ICMP_UGE;
case FCMP_FALSE: case FCMP_TRUE:
case FCMP_OEQ: case FCMP_ONE:
case FCMP_UEQ: case FCMP_UNE: