[PATCH][WIP] PR tree-optimization/101808 Boolean comparison simplification

Navid Rahimi navidrahimi@microsoft.com
Tue Nov 23 18:34:00 GMT 2021


Hi GCC community,

I wanted you take a quick look at this patch to solve this bug [1]. This is the code example for the optimization [2] which does include a link to proof of each different optimization.

I think it should be possible to use simpler approach than what Andrew has used here [3].

P.S. Tested and verified on Linux x86_64.

1) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101808 
2) https://compiler-explorer.com/z/Gc448eE3z
3) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101808#c1

Best wishes,
Navid.
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