diff options
| author | Dale Johannesen <dalej@apple.com> | 2009-02-11 19:19:41 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2009-02-11 19:19:41 +0000 |
| commit | 85b0edec4672f6ac6c15f757b119d04232a61861 (patch) | |
| tree | 1e4731af3bbc428927b3ce38e7fc4f5a4b626ad1 /lib/Transforms/Utils/InlineFunction.cpp | |
| parent | 905c7e9a0459ffdffbee3e6fffe0dbf5e5c9583c (diff) | |
Make a transformation added in 63266 a bit less aggressive.
It was transforming (x&y)==y to (x&y)!=0 in the case where
y is variable and known to have at most one bit set (e.g. z&1).
This is not correct; the expressions are not equivalent when y==0.
I believe this patch salvages what can be salvaged, including
all the cases in bt.ll. Dan, please review.
Fixes gcc.c-torture/execute/20040709-[12].c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64314 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/InlineFunction.cpp')
0 files changed, 0 insertions, 0 deletions