summaryrefslogtreecommitdiffstats
path: root/contrib/llvm/lib/Support/APInt.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/llvm/lib/Support/APInt.cpp')
-rw-r--r--contrib/llvm/lib/Support/APInt.cpp52
1 files changed, 46 insertions, 6 deletions
diff --git a/contrib/llvm/lib/Support/APInt.cpp b/contrib/llvm/lib/Support/APInt.cpp
index 38cfaed..e853475 100644
--- a/contrib/llvm/lib/Support/APInt.cpp
+++ b/contrib/llvm/lib/Support/APInt.cpp
@@ -23,9 +23,9 @@
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include <cmath>
-#include <limits>
-#include <cstring>
#include <cstdlib>
+#include <cstring>
+#include <limits>
using namespace llvm;
/// A utility function for allocating memory, checking for allocation failures,
@@ -559,12 +559,12 @@ bool APInt::slt(const APInt& RHS) const {
if (lhsNeg) {
// Sign bit is set so perform two's complement to make it positive
lhs.flipAllBits();
- lhs++;
+ ++lhs;
}
if (rhsNeg) {
// Sign bit is set so perform two's complement to make it positive
rhs.flipAllBits();
- rhs++;
+ ++rhs;
}
// Now we have unsigned values to compare so do the comparison if necessary
@@ -1876,6 +1876,17 @@ APInt APInt::udiv(const APInt& RHS) const {
return Quotient;
}
+APInt APInt::sdiv(const APInt &RHS) const {
+ if (isNegative()) {
+ if (RHS.isNegative())
+ return (-(*this)).udiv(-RHS);
+ return -((-(*this)).udiv(RHS));
+ }
+ if (RHS.isNegative())
+ return -(this->udiv(-RHS));
+ return this->udiv(RHS);
+}
+
APInt APInt::urem(const APInt& RHS) const {
assert(BitWidth == RHS.BitWidth && "Bit widths must be the same");
if (isSingleWord()) {
@@ -1913,6 +1924,17 @@ APInt APInt::urem(const APInt& RHS) const {
return Remainder;
}
+APInt APInt::srem(const APInt &RHS) const {
+ if (isNegative()) {
+ if (RHS.isNegative())
+ return -((-(*this)).urem(-RHS));
+ return -((-(*this)).urem(RHS));
+ }
+ if (RHS.isNegative())
+ return this->urem(-RHS);
+ return this->urem(RHS);
+}
+
void APInt::udivrem(const APInt &LHS, const APInt &RHS,
APInt &Quotient, APInt &Remainder) {
// Get some size facts about the dividend and divisor
@@ -1953,6 +1975,24 @@ void APInt::udivrem(const APInt &LHS, const APInt &RHS,
divide(LHS, lhsWords, RHS, rhsWords, &Quotient, &Remainder);
}
+void APInt::sdivrem(const APInt &LHS, const APInt &RHS,
+ APInt &Quotient, APInt &Remainder) {
+ if (LHS.isNegative()) {
+ if (RHS.isNegative())
+ APInt::udivrem(-LHS, -RHS, Quotient, Remainder);
+ else {
+ APInt::udivrem(-LHS, RHS, Quotient, Remainder);
+ Quotient = -Quotient;
+ }
+ Remainder = -Remainder;
+ } else if (RHS.isNegative()) {
+ APInt::udivrem(LHS, -RHS, Quotient, Remainder);
+ Quotient = -Quotient;
+ } else {
+ APInt::udivrem(LHS, RHS, Quotient, Remainder);
+ }
+}
+
APInt APInt::sadd_ov(const APInt &RHS, bool &Overflow) const {
APInt Res = *this+RHS;
Overflow = isNonNegative() == RHS.isNonNegative() &&
@@ -2076,7 +2116,7 @@ void APInt::fromString(unsigned numbits, StringRef str, uint8_t radix) {
}
// If its negative, put it in two's complement form
if (isNeg) {
- (*this)--;
+ --(*this);
this->flipAllBits();
}
}
@@ -2157,7 +2197,7 @@ void APInt::toString(SmallVectorImpl<char> &Str, unsigned Radix,
// Flip the bits and add one to turn it into the equivalent positive
// value and put a '-' in the result.
Tmp.flipAllBits();
- Tmp++;
+ ++Tmp;
Str.push_back('-');
}
OpenPOWER on IntegriCloud