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-rw-r--r--include/llvm/ADT/APInt.h53
-rw-r--r--lib/Analysis/ValueTracking.cpp5
-rw-r--r--lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp5
-rw-r--r--lib/Support/APInt.cpp9
4 files changed, 39 insertions, 33 deletions
diff --git a/include/llvm/ADT/APInt.h b/include/llvm/ADT/APInt.h
index 560a4a4..569df02 100644
--- a/include/llvm/ADT/APInt.h
+++ b/include/llvm/ADT/APInt.h
@@ -379,12 +379,17 @@ public:
/// @{
/// @brief Gets maximum unsigned value of APInt for specific bit width.
static APInt getMaxValue(unsigned numBits) {
- return APInt(numBits, 0).set();
+ APInt API(numBits, 0);
+ API.set();
+ return API;
}
/// @brief Gets maximum signed value of APInt for a specific bit width.
static APInt getSignedMaxValue(unsigned numBits) {
- return APInt(numBits, 0).set().clear(numBits - 1);
+ APInt API(numBits, 0);
+ API.set();
+ API.clear(numBits - 1);
+ return API;
}
/// @brief Gets minimum unsigned value of APInt for a specific bit width.
@@ -394,7 +399,9 @@ public:
/// @brief Gets minimum signed value of APInt for a specific bit width.
static APInt getSignedMinValue(unsigned numBits) {
- return APInt(numBits, 0).set(numBits - 1);
+ APInt API(numBits, 0);
+ API.set(numBits - 1);
+ return API;
}
/// getSignBit - This is just a wrapper function of getSignedMinValue(), and
@@ -407,7 +414,9 @@ public:
/// @returns the all-ones value for an APInt of the specified bit-width.
/// @brief Get the all-ones value.
static APInt getAllOnesValue(unsigned numBits) {
- return APInt(numBits, 0).set();
+ APInt API(numBits, 0);
+ API.set();
+ return API;
}
/// @returns the '0' value for an APInt of the specified bit-width.
@@ -1035,51 +1044,49 @@ public:
/// @name Bit Manipulation Operators
/// @{
/// @brief Set every bit to 1.
- APInt &set() {
- if (isSingleWord()) {
+ void set() {
+ if (isSingleWord())
VAL = -1ULL;
- return clearUnusedBits();
+ else {
+ // Set all the bits in all the words.
+ for (unsigned i = 0; i < getNumWords(); ++i)
+ pVal[i] = -1ULL;
}
-
- // Set all the bits in all the words.
- for (unsigned i = 0; i < getNumWords(); ++i)
- pVal[i] = -1ULL;
// Clear the unused ones
- return clearUnusedBits();
+ clearUnusedBits();
}
/// Set the given bit to 1 whose position is given as "bitPosition".
/// @brief Set a given bit to 1.
- APInt &set(unsigned bitPosition);
+ void set(unsigned bitPosition);
/// @brief Set every bit to 0.
- APInt &clear() {
+ void clear() {
if (isSingleWord())
VAL = 0;
else
memset(pVal, 0, getNumWords() * APINT_WORD_SIZE);
- return *this;
}
/// Set the given bit to 0 whose position is given as "bitPosition".
/// @brief Set a given bit to 0.
- APInt &clear(unsigned bitPosition);
+ void clear(unsigned bitPosition);
/// @brief Toggle every bit to its opposite value.
- APInt &flip() {
- if (isSingleWord()) {
+ void flip() {
+ if (isSingleWord())
VAL ^= -1ULL;
- return clearUnusedBits();
+ else {
+ for (unsigned i = 0; i < getNumWords(); ++i)
+ pVal[i] ^= -1ULL;
}
- for (unsigned i = 0; i < getNumWords(); ++i)
- pVal[i] ^= -1ULL;
- return clearUnusedBits();
+ clearUnusedBits();
}
/// Toggle a given bit to its opposite value whose position is given
/// as "bitPosition".
/// @brief Toggles a given bit to its opposite value.
- APInt& flip(unsigned bitPosition);
+ void flip(unsigned bitPosition);
/// @}
/// @name Value Characterization Functions
diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp
index 181c9b0..9d6459d 100644
--- a/lib/Analysis/ValueTracking.cpp
+++ b/lib/Analysis/ValueTracking.cpp
@@ -875,8 +875,9 @@ bool llvm::ComputeMultiple(Value *V, unsigned Base, Value *&Multiple,
// Turn Op0 << Op1 into Op0 * 2^Op1
APInt Op1Int = Op1CI->getValue();
uint64_t BitToSet = Op1Int.getLimitedValue(Op1Int.getBitWidth() - 1);
- Op1 = ConstantInt::get(V->getContext(),
- APInt(Op1Int.getBitWidth(), 0).set(BitToSet));
+ APInt API(Op1Int.getBitWidth(), 0);
+ API.set(BitToSet);
+ Op1 = ConstantInt::get(V->getContext(), API);
}
Value *Mul0 = NULL;
diff --git a/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
index 28a9389..1ac5c45 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
@@ -133,8 +133,9 @@ SDValue DAGTypeLegalizer::SoftenFloatRes_FABS(SDNode *N) {
unsigned Size = NVT.getSizeInBits();
// Mask = ~(1 << (Size-1))
- SDValue Mask = DAG.getConstant(APInt::getAllOnesValue(Size).clear(Size-1),
- NVT);
+ APInt API = APInt::getAllOnesValue(Size);
+ API.clear(Size-1);
+ SDValue Mask = DAG.getConstant(API, NVT);
SDValue Op = GetSoftenedFloat(N->getOperand(0));
return DAG.getNode(ISD::AND, N->getDebugLoc(), NVT, Op, Mask);
}
diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp
index 6bbe9ab..4c2254e 100644
--- a/lib/Support/APInt.cpp
+++ b/lib/Support/APInt.cpp
@@ -584,22 +584,20 @@ bool APInt::slt(const APInt& RHS) const {
return lhs.ult(rhs);
}
-APInt& APInt::set(unsigned bitPosition) {
+void APInt::set(unsigned bitPosition) {
if (isSingleWord())
VAL |= maskBit(bitPosition);
else
pVal[whichWord(bitPosition)] |= maskBit(bitPosition);
- return *this;
}
/// Set the given bit to 0 whose position is given as "bitPosition".
/// @brief Set a given bit to 0.
-APInt& APInt::clear(unsigned bitPosition) {
+void APInt::clear(unsigned bitPosition) {
if (isSingleWord())
VAL &= ~maskBit(bitPosition);
else
pVal[whichWord(bitPosition)] &= ~maskBit(bitPosition);
- return *this;
}
/// @brief Toggle every bit to its opposite value.
@@ -607,11 +605,10 @@ APInt& APInt::clear(unsigned bitPosition) {
/// Toggle a given bit to its opposite value whose position is given
/// as "bitPosition".
/// @brief Toggles a given bit to its opposite value.
-APInt& APInt::flip(unsigned bitPosition) {
+void APInt::flip(unsigned bitPosition) {
assert(bitPosition < BitWidth && "Out of the bit-width range!");
if ((*this)[bitPosition]) clear(bitPosition);
else set(bitPosition);
- return *this;
}
unsigned APInt::getBitsNeeded(StringRef str, uint8_t radix) {
generated by cgit v1.1 at 2025-02-19 10:54:39 +0000