[llvm-commits] [llvm] r92643 - /llvm/trunk/lib/Support/APInt.cpp
David Greene
greened at obbligato.org
Mon Jan 4 17:28:53 PST 2010
Author: greened
Date: Mon Jan 4 19:28:52 2010
New Revision: 92643
URL: http://llvm.org/viewvc/llvm-project?rev=92643&view=rev
Log:
Change errs() to dbgs().
Modified:
llvm/trunk/lib/Support/APInt.cpp
Modified: llvm/trunk/lib/Support/APInt.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/APInt.cpp?rev=92643&r1=92642&r2=92643&view=diff
==============================================================================
--- llvm/trunk/lib/Support/APInt.cpp (original)
+++ llvm/trunk/lib/Support/APInt.cpp Mon Jan 4 19:28:52 2010
@@ -1580,12 +1580,12 @@
uint64_t b = uint64_t(1) << 32;
#if 0
- DEBUG(errs() << "KnuthDiv: m=" << m << " n=" << n << '\n');
- DEBUG(errs() << "KnuthDiv: original:");
- DEBUG(for (int i = m+n; i >=0; i--) errs() << " " << u[i]);
- DEBUG(errs() << " by");
- DEBUG(for (int i = n; i >0; i--) errs() << " " << v[i-1]);
- DEBUG(errs() << '\n');
+ DEBUG(dbgs() << "KnuthDiv: m=" << m << " n=" << n << '\n');
+ DEBUG(dbgs() << "KnuthDiv: original:");
+ DEBUG(for (int i = m+n; i >=0; i--) dbgs() << " " << u[i]);
+ DEBUG(dbgs() << " by");
+ DEBUG(for (int i = n; i >0; i--) dbgs() << " " << v[i-1]);
+ DEBUG(dbgs() << '\n');
#endif
// D1. [Normalize.] Set d = b / (v[n-1] + 1) and multiply all the digits of
// u and v by d. Note that we have taken Knuth's advice here to use a power
@@ -1612,17 +1612,17 @@
}
u[m+n] = u_carry;
#if 0
- DEBUG(errs() << "KnuthDiv: normal:");
- DEBUG(for (int i = m+n; i >=0; i--) errs() << " " << u[i]);
- DEBUG(errs() << " by");
- DEBUG(for (int i = n; i >0; i--) errs() << " " << v[i-1]);
- DEBUG(errs() << '\n');
+ DEBUG(dbgs() << "KnuthDiv: normal:");
+ DEBUG(for (int i = m+n; i >=0; i--) dbgs() << " " << u[i]);
+ DEBUG(dbgs() << " by");
+ DEBUG(for (int i = n; i >0; i--) dbgs() << " " << v[i-1]);
+ DEBUG(dbgs() << '\n');
#endif
// D2. [Initialize j.] Set j to m. This is the loop counter over the places.
int j = m;
do {
- DEBUG(errs() << "KnuthDiv: quotient digit #" << j << '\n');
+ DEBUG(dbgs() << "KnuthDiv: quotient digit #" << j << '\n');
// D3. [Calculate q'.].
// Set qp = (u[j+n]*b + u[j+n-1]) / v[n-1]. (qp=qprime=q')
// Set rp = (u[j+n]*b + u[j+n-1]) % v[n-1]. (rp=rprime=r')
@@ -1632,7 +1632,7 @@
// value qp is one too large, and it eliminates all cases where qp is two
// too large.
uint64_t dividend = ((uint64_t(u[j+n]) << 32) + u[j+n-1]);
- DEBUG(errs() << "KnuthDiv: dividend == " << dividend << '\n');
+ DEBUG(dbgs() << "KnuthDiv: dividend == " << dividend << '\n');
uint64_t qp = dividend / v[n-1];
uint64_t rp = dividend % v[n-1];
if (qp == b || qp*v[n-2] > b*rp + u[j+n-2]) {
@@ -1641,7 +1641,7 @@
if (rp < b && (qp == b || qp*v[n-2] > b*rp + u[j+n-2]))
qp--;
}
- DEBUG(errs() << "KnuthDiv: qp == " << qp << ", rp == " << rp << '\n');
+ DEBUG(dbgs() << "KnuthDiv: qp == " << qp << ", rp == " << rp << '\n');
// D4. [Multiply and subtract.] Replace (u[j+n]u[j+n-1]...u[j]) with
// (u[j+n]u[j+n-1]..u[j]) - qp * (v[n-1]...v[1]v[0]). This computation
@@ -1652,7 +1652,7 @@
uint64_t u_tmp = uint64_t(u[j+i]) | (uint64_t(u[j+i+1]) << 32);
uint64_t subtrahend = uint64_t(qp) * uint64_t(v[i]);
bool borrow = subtrahend > u_tmp;
- DEBUG(errs() << "KnuthDiv: u_tmp == " << u_tmp
+ DEBUG(dbgs() << "KnuthDiv: u_tmp == " << u_tmp
<< ", subtrahend == " << subtrahend
<< ", borrow = " << borrow << '\n');
@@ -1666,12 +1666,12 @@
k++;
}
isNeg |= borrow;
- DEBUG(errs() << "KnuthDiv: u[j+i] == " << u[j+i] << ", u[j+i+1] == " <<
+ DEBUG(dbgs() << "KnuthDiv: u[j+i] == " << u[j+i] << ", u[j+i+1] == " <<
u[j+i+1] << '\n');
}
- DEBUG(errs() << "KnuthDiv: after subtraction:");
- DEBUG(for (int i = m+n; i >=0; i--) errs() << " " << u[i]);
- DEBUG(errs() << '\n');
+ DEBUG(dbgs() << "KnuthDiv: after subtraction:");
+ DEBUG(for (int i = m+n; i >=0; i--) dbgs() << " " << u[i]);
+ DEBUG(dbgs() << '\n');
// The digits (u[j+n]...u[j]) should be kept positive; if the result of
// this step is actually negative, (u[j+n]...u[j]) should be left as the
// true value plus b**(n+1), namely as the b's complement of
@@ -1684,9 +1684,9 @@
carry = carry && u[i] == 0;
}
}
- DEBUG(errs() << "KnuthDiv: after complement:");
- DEBUG(for (int i = m+n; i >=0; i--) errs() << " " << u[i]);
- DEBUG(errs() << '\n');
+ DEBUG(dbgs() << "KnuthDiv: after complement:");
+ DEBUG(for (int i = m+n; i >=0; i--) dbgs() << " " << u[i]);
+ DEBUG(dbgs() << '\n');
// D5. [Test remainder.] Set q[j] = qp. If the result of step D4 was
// negative, go to step D6; otherwise go on to step D7.
@@ -1707,16 +1707,16 @@
}
u[j+n] += carry;
}
- DEBUG(errs() << "KnuthDiv: after correction:");
- DEBUG(for (int i = m+n; i >=0; i--) errs() <<" " << u[i]);
- DEBUG(errs() << "\nKnuthDiv: digit result = " << q[j] << '\n');
+ DEBUG(dbgs() << "KnuthDiv: after correction:");
+ DEBUG(for (int i = m+n; i >=0; i--) dbgs() <<" " << u[i]);
+ DEBUG(dbgs() << "\nKnuthDiv: digit result = " << q[j] << '\n');
// D7. [Loop on j.] Decrease j by one. Now if j >= 0, go back to D3.
} while (--j >= 0);
- DEBUG(errs() << "KnuthDiv: quotient:");
- DEBUG(for (int i = m; i >=0; i--) errs() <<" " << q[i]);
- DEBUG(errs() << '\n');
+ DEBUG(dbgs() << "KnuthDiv: quotient:");
+ DEBUG(for (int i = m; i >=0; i--) dbgs() <<" " << q[i]);
+ DEBUG(dbgs() << '\n');
// D8. [Unnormalize]. Now q[...] is the desired quotient, and the desired
// remainder may be obtained by dividing u[...] by d. If r is non-null we
@@ -1727,22 +1727,22 @@
// shift right here. In order to mak
if (shift) {
unsigned carry = 0;
- DEBUG(errs() << "KnuthDiv: remainder:");
+ DEBUG(dbgs() << "KnuthDiv: remainder:");
for (int i = n-1; i >= 0; i--) {
r[i] = (u[i] >> shift) | carry;
carry = u[i] << (32 - shift);
- DEBUG(errs() << " " << r[i]);
+ DEBUG(dbgs() << " " << r[i]);
}
} else {
for (int i = n-1; i >= 0; i--) {
r[i] = u[i];
- DEBUG(errs() << " " << r[i]);
+ DEBUG(dbgs() << " " << r[i]);
}
}
- DEBUG(errs() << '\n');
+ DEBUG(dbgs() << '\n');
}
#if 0
- DEBUG(errs() << '\n');
+ DEBUG(dbgs() << '\n');
#endif
}
@@ -2191,7 +2191,7 @@
SmallString<40> S, U;
this->toStringUnsigned(U);
this->toStringSigned(S);
- errs() << "APInt(" << BitWidth << "b, "
+ dbgs() << "APInt(" << BitWidth << "b, "
<< U.str() << "u " << S.str() << "s)";
}
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