[llvm-bugs] [Bug 46205] New: Missed optimization: unsigned remainder <= numerator

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=46205

            Bug ID: 46205
           Summary: Missed optimization: unsigned remainder <= numerator
           Product: libraries
           Version: trunk
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: tilkax at gmail.com
                CC: llvm-bugs at lists.llvm.org

n % d <= n is always true, but LLVM doesn't optimize it.

https://rise4fun.com/Alive/KDfC


%r = urem i32 %n, %d
%c = icmp ule i32 %r, %n

=>

%c = i1 true

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20200604/ecb1bca5/attachment-0001.html>