Sanjay Patel
|
dc813ccd3f
|
[ValueTracking] return zero when there's conflict in known bits of a shift (PR34838)
Poison allows us to return a better result than undef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315595 91177308-0d34-0410-b5e6-96231b3b80d8
|
2017-10-12 17:31:46 +00:00 |
|
Evgeny Stupachenko
|
2af858265d
|
The patch improves ValueTracking on left shift with nsw flag.
Summary:
The patch fixes PR28946.
Reviewers: majnemer, sanjoy
Differential Revision: http://reviews.llvm.org/D23296
From: Li Huang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279684 91177308-0d34-0410-b5e6-96231b3b80d8
|
2016-08-24 23:01:33 +00:00 |
|
Sanjoy Das
|
b4ca813e88
|
Revert "[ValueTracking] Improve ValueTracking on left shift with nsw flag"
This reverts commit r278172. It causes PR28946.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278740 91177308-0d34-0410-b5e6-96231b3b80d8
|
2016-08-15 21:01:31 +00:00 |
|
Andrew Kaylor
|
6c6978f931
|
[ValueTracking] Improve ValueTracking on left shift with nsw flag
Patch by Li Huang
Differential Revison: https://reviews.llvm.org/D23296
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278172 91177308-0d34-0410-b5e6-96231b3b80d8
|
2016-08-09 22:41:35 +00:00 |
|