Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

BUG: the concat builtin doesn't treat zero length BVs correctly #20

Open
ntc2 opened this issue May 24, 2019 · 0 comments
Open

BUG: the concat builtin doesn't treat zero length BVs correctly #20

ntc2 opened this issue May 24, 2019 · 0 comments

Comments

@ntc2
Copy link
Contributor

ntc2 commented May 24, 2019

See changes to concat wrapper here:

3e550be#diff-bdb3fbaccee9cbaf2b422b3b48835e18R849

The concats for zero length bit vectors arise from updateXER in semmc-ppc, which updates a bit in a bit vector by chopping off a prefix and suffix and then concatenating them around the updated bit:

semmc/semmc-ppc/src/SemMC/Architecture/PPC/Base/Core.hs

Line 371 in 626fae7

updateXER :: (HasCallStack, ?bitSize :: BitSize)

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
1 participant
@ntc2