diff options
| author | Zhou Sheng <zhousheng00@gmail.com> | 2008-06-05 13:27:38 +0000 |
|---|---|---|
| committer | Zhou Sheng <zhousheng00@gmail.com> | 2008-06-05 13:27:38 +0000 |
| commit | bfde7d6b9ea58a59edf61a5f93b2a86e5a9dae37 (patch) | |
| tree | 1344f9a6597100e992eb617bd28bffc880832f79 /lib/Support/APInt.cpp | |
| parent | ef7d2bb8d3b8f486d178440e9569e4f75f9c11a4 (diff) | |
As comments said, for negative value, the arithmetic
over-shift-right should return -1. So here it should be signed-extended,
when bitwidth larger than 64.
test case: llvm/test/ExecutionEngine/2008-06-05-APInt-OverAShr.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51999 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/APInt.cpp')
| -rw-r--r-- | lib/Support/APInt.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp index ef35e1c554..e13011faea 100644 --- a/lib/Support/APInt.cpp +++ b/lib/Support/APInt.cpp @@ -1113,7 +1113,7 @@ APInt APInt::ashr(uint32_t shiftAmt) const { // issues in the algorithm below. if (shiftAmt == BitWidth) { if (isNegative()) - return APInt(BitWidth, -1ULL); + return APInt(BitWidth, -1ULL, true); else return APInt(BitWidth, 0); } |