| commit | ee5a094ccf1f04d3fcc92ac4d2fc8a2926cbb232 | [log] [tgz] |
|---|---|---|
| author | Duncan Sands <baldrick@free.fr> | Wed Jun 13 09:42:13 2012 +0000 |
| committer | Duncan Sands <baldrick@free.fr> | Wed Jun 13 09:42:13 2012 +0000 |
| tree | e4bba8613607c38aa947509b4cf6f9e501af678a | |
| parent | cc95b57d42a4af1cbb0a0e4a4efc2133116dd21c [diff] |
When linearizing a multiplication, return at once if we see a factor of zero, since then the entire expression must equal zero (similarly for other operations with an absorbing element). With this in place a bunch of reassociate code for handling constants is dead since it is all taken care of when linearizing. No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158398 91177308-0d34-0410-b5e6-96231b3b80d8