search for: b7yj7j

Displaying 2 results from an estimated 2 matches for "b7yj7j".

2020 Apr 05
2
Branch is not optimized because of right shift
Hi everyone, In a twitch chat someone redirected me to an example that is not optimized: https://godbolt.org/z/BL-4jL I included the original source code and this is after -O2. We both thought that the -8 branch could be optimized out. I added a nuw in the subtraction and it actually does it. Any thoughts on why that doesn't happen already? Best, Stefanos Baziotis -------------- next part
2020 Apr 05
2
Branch is not optimized because of right shift
...t was just lost. Στις Κυρ, 5 Απρ 2020 στις 7:12 π.μ., ο/η John Regehr via llvm-dev < llvm-dev at lists.llvm.org> έγραψε: > I'm not sure that I've captured what you mean here, but you can explore > these sorts of things using Alive2: > > http://volta.cs.utah.edu:8080/z/b7Yj7j > > John > > > > On 4/4/20 6:29 PM, Stefanos Baziotis via llvm-dev wrote: > > Hi everyone, > > > > In a twitch chat someone redirected me to an example that is not > > optimized: https://godbolt.org/z/BL-4jL > > > > I included the original sourc...