[PATCH] D152527: [NFC] Remove old README.txt under llvm/lib/Analysis/

[Shivam Gupta via Phabricator via llvm-commits]

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Github issue might be place to list them. 
I think these two optimization oppertunities are fulfilled now. 
Aleast for first testcase is not there and for second it seems fixed -
https://godbolt.org/z/KEzz4hafn


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D152527

Files:
  llvm/lib/Analysis/README.txt


Index: llvm/lib/Analysis/README.txt
===================================================================
--- llvm/lib/Analysis/README.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-Analysis Opportunities:
-
-//===---------------------------------------------------------------------===//
-
-In test/Transforms/LoopStrengthReduce/quadradic-exit-value.ll, the
-ScalarEvolution expression for %r is this:
-
-  {1,+,3,+,2}<loop>
-
-Outside the loop, this could be evaluated simply as (%n * %n), however
-ScalarEvolution currently evaluates it as
-
-  (-2 + (2 * (trunc i65 (((zext i64 (-2 + %n) to i65) * (zext i64 (-1 + %n) to i65)) /u 2) to i64)) + (3 * %n))
-
-In addition to being much more complicated, it involves i65 arithmetic,
-which is very inefficient when expanded into code.
-
-//===---------------------------------------------------------------------===//
-
-In formatValue in test/CodeGen/X86/lsr-delayed-fold.ll,
-
-ScalarEvolution is forming this expression:
-
-((trunc i64 (-1 * %arg5) to i32) + (trunc i64 %arg5 to i32) + (-1 * (trunc i64 undef to i32)))
-
-This could be folded to
-
-(-1 * (trunc i64 undef to i32))
-
-//===---------------------------------------------------------------------===//


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