Changes in directory llvm/lib/Support:
APInt.cpp updated: 1.35 -> 1.36
---
Log message:
Fix the remainder shifting in KnuthDiv.
---
Diffs of the changes: (+13 -6)
APInt.cpp | 19 +++++++++++++------
1 files changed, 13 insertions(+), 6 deletions(-)
Index: llvm/lib/Support/APInt.cpp
diff -u llvm/lib/Support/APInt.cpp:1.35 llvm/lib/Support/APInt.cpp:1.36
--- llvm/lib/Support/APInt.cpp:1.35 Sat Feb 24 14:19:37 2007
+++ llvm/lib/Support/APInt.cpp Sat Feb 24 14:38:01 2007
@@ -1134,12 +1134,19 @@
// The value d is expressed by the "shift" value above since we avoided
// multiplication by d by using a shift left. So, all we have to do is
// shift right here. In order to mak
- uint32_t carry = 0;
- DEBUG(cerr << "KnuthDiv: remainder:");
- for (int i = n-1; i >= 0; i--) {
- r[i] = (u[i] >> shift) | carry;
- carry = u[i] << shift;
- DEBUG(cerr << " " << r[i]);
+ if (shift) {
+ uint32_t carry = 0;
+ DEBUG(cerr << "KnuthDiv: remainder:");
+ for (int i = n-1; i >= 0; i--) {
+ r[i] = (u[i] >> shift) | carry;
+ carry = u[i] << (32 - shift);
+ DEBUG(cerr << " " << r[i]);
+ }
+ } else {
+ for (int i = n-1; i >= 0; i--) {
+ r[i] = u[i];
+ DEBUG(cerr << " " << r[i]);
+ }
}
DEBUG(cerr << '\n');
}
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