| commit | 822cb58d087ab67804037807e130273481b86137 | [log] [tgz] |
|---|---|---|
| author | Bob Wilson <bob.wilson@apple.com> | Fri Oct 29 22:03:05 2010 +0000 |
| committer | Bob Wilson <bob.wilson@apple.com> | Fri Oct 29 22:03:05 2010 +0000 |
| tree | 615e77dbe1edd2ba92973d3a4b39848a5d0094a9 | |
| parent | 46455096bea2b6c81bb4b0226701524d2a9eb242 [diff] |
Change instcombine's getShuffleMask to represent undef with negative values. This code had previously used 2*N, where N is the mask length, to represent undef. That is not safe because the shufflevector operands may have more than N elements -- they don't have to match the result type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117721 91177308-0d34-0410-b5e6-96231b3b80d8