[llvm] [Analysis] Only fold `trunc X` to `(X & Mask)` if `Mask == getLowBitsSet(bit width of original operands)` (PR #176589)

Tirthankar Mazumder via llvm-commits llvm-commits at lists.llvm.org
Sun Feb 15 11:53:50 PST 2026

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wermos wrote:

I'm closing this PR for now. I'll open a new one when I get around to investigating the regressions.

https://github.com/llvm/llvm-project/pull/176589

Previous message: [llvm] [Analysis] Only fold `trunc X` to `(X & Mask)` if `Mask == getLowBitsSet(bit width of original operands)` (PR #176589)
Next message: [llvm] 6f253e8 - Reapply "[VPlan] Run narrowInterleaveGroups during general VPlan optimizations. (#149706)"
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