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| author | Nick Lewycky <nicholas@mxc.ca> | 2009-07-13 04:17:23 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2009-07-13 04:17:23 +0000 |
| commit | ff84de767a9baded740abd1e846938477a4b285a (patch) | |
| tree | ac55837ffd97afa396f19f7ac992b70e0e0167bd /lib/Support/ConstantRange.cpp | |
| parent | 0a5372ed3e8cda10d724feda3c1a1c998db05ca0 (diff) | |
| download | external_llvm-ff84de767a9baded740abd1e846938477a4b285a.zip external_llvm-ff84de767a9baded740abd1e846938477a4b285a.tar.gz external_llvm-ff84de767a9baded740abd1e846938477a4b285a.tar.bz2 | |
'i8 full-range' sign extended to i16 should equal [-128, 128) not [-128, 127).
Found by Daniel Dunbar and KLEE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75448 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/ConstantRange.cpp')
| -rw-r--r-- | lib/Support/ConstantRange.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Support/ConstantRange.cpp b/lib/Support/ConstantRange.cpp index d7a57bb..ca25491 100644 --- a/lib/Support/ConstantRange.cpp +++ b/lib/Support/ConstantRange.cpp @@ -505,7 +505,7 @@ ConstantRange ConstantRange::signExtend(uint32_t DstTySize) const { assert(SrcTySize < DstTySize && "Not a value extension"); if (isFullSet()) { return ConstantRange(APInt::getHighBitsSet(DstTySize,DstTySize-SrcTySize+1), - APInt::getLowBitsSet(DstTySize, SrcTySize-1)); + APInt::getLowBitsSet(DstTySize, SrcTySize-1) + 1); } APInt L = Lower; L.sext(DstTySize); |