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| author | Chris Lattner <sabre@nondot.org> | 2004-10-17 21:25:56 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-10-17 21:25:56 +0000 |
| commit | 7e40f63428fbdf64fdea5aa84459d7b3072a9a65 (patch) | |
| tree | f4078d4de9a3443ad5ad79511e28a68fa32b9d34 /lib/Support/ToolRunner.cpp | |
| parent | 41b2dc4133b3673f5b1779aa712f39f037d3c63d (diff) | |
When inserting PHI nodes, don't insert any phi nodes that are obviously
unneccesary. This allows us to delete several hundred phi nodes of the
form PHI(x,x,x,undef) from 253.perlbmk and probably other programs as well.
This implements Mem2Reg/UndefValuesMerge.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17098 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/ToolRunner.cpp')
0 files changed, 0 insertions, 0 deletions