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Fix the remainder shifting in KnuthDiv.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34562 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1134,12 +1134,19 @@ static void KnuthDiv(uint32_t *u, uint32_t *v, uint32_t *q, uint32_t* r,
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// The value d is expressed by the "shift" value above since we avoided
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// multiplication by d by using a shift left. So, all we have to do is
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// shift right here. In order to mak
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uint32_t carry = 0;
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DEBUG(cerr << "KnuthDiv: remainder:");
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for (int i = n-1; i >= 0; i--) {
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r[i] = (u[i] >> shift) | carry;
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carry = u[i] << shift;
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DEBUG(cerr << " " << r[i]);
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if (shift) {
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uint32_t carry = 0;
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DEBUG(cerr << "KnuthDiv: remainder:");
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for (int i = n-1; i >= 0; i--) {
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r[i] = (u[i] >> shift) | carry;
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carry = u[i] << (32 - shift);
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DEBUG(cerr << " " << r[i]);
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}
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} else {
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for (int i = n-1; i >= 0; i--) {
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r[i] = u[i];
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DEBUG(cerr << " " << r[i]);
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}
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}
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DEBUG(cerr << '\n');
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}
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