| commit | ce947366ec07ed3e9b017f0f4a07fa668a799119 | [log] [tgz] |
|---|---|---|
| author | Dan Gohman <gohman@apple.com> | Sun Feb 14 18:50:49 2010 +0000 |
| committer | Dan Gohman <gohman@apple.com> | Sun Feb 14 18:50:49 2010 +0000 |
| tree | 71f28ad57916ef92bac7c6d05648627482181163 | |
| parent | 44de6823fc36eb7151b4a3077db9b10ec8f14442 [diff] |
When complicated expressions are broken down into subexpressions with multiplication by constants distributed through, occasionally those subexpressions can include both x and -x. For now, if this condition is discovered within LSR, just prune such cases away, as they won't be profitable. This fixes a "zero allocated in a base register" assertion failure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96177 91177308-0d34-0410-b5e6-96231b3b80d8