[llvm] [LoopInterchange] Don't consider loops with BTC=0 (PR #167113)

[Ryotaro Kasuga via llvm-commits]

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@@ -1,5 +1,5 @@
 ; RUN: opt < %s -passes=loop-interchange -cache-line-size=64 -pass-remarks-missed='loop-interchange' -pass-remarks-output=%t -S \
-; RUN:     -verify-dom-info -verify-loop-info -verify-loop-lcssa -stats 2>&1 | FileCheck %s
+; RUN:     -loop-interchange-skip-zero-btc=false -verify-dom-info -verify-loop-info -verify-loop-lcssa -stats 2>&1 | FileCheck %s
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kasuga-fj wrote:

If I don't overlook anything, there are no cases where BTC=0 in this file.

https://github.com/llvm/llvm-project/pull/167113