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| author | Chris Lattner <sabre@nondot.org> | 2006-02-09 07:38:58 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2006-02-09 07:38:58 +0000 |
| commit | 68d5ff2b83033d14468b13c5885d5d1fad25a764 (patch) | |
| tree | 6778a6e9bc8e7b406086c5ea23d3c99930967e4a /lib/CodeGen/MachineDebugInfo.cpp | |
| parent | 12f7de822262aab9400f6b400bff25e136d4f7d3 (diff) | |
Enhance MVIZ in three ways:
1. Teach it new tricks: in particular how to propagate through signed shr and sexts.
2. Teach it to return a bitset of known-1 and known-0 bits, instead of just zero.
3. Teach instcombine (AND X, C) to fold when we know all C bits of X.
This implements Regression/Transforms/InstCombine/bittest.ll, and allows
future things to be simplified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26087 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineDebugInfo.cpp')
0 files changed, 0 insertions, 0 deletions