[llvm] [KnownBits] Remove `hasConflict()` assertions (PR #94568)

[Nikita Popov via llvm-commits]

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@@ -448,8 +433,7 @@ KnownBits KnownBits::ashr(const KnownBits &LHS, const KnownBits &RHS,
     MinShiftAmount = 1;
   if (LHS.isUnknown()) {
     if (MinShiftAmount == BitWidth) {
-      // Always poison. Return zero because we don't like returning conflict.
-      Known.setAllZero();
+      // Always poison.
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nikic wrote:

This one, and the next one as well.

https://github.com/llvm/llvm-project/pull/94568