[llvm] [VPlan] Simplify Plan's entry in removeBranchOnConst. (PR #154510)

[David Sherwood via llvm-commits]

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@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -passes=loop-vectorize -S  %s | FileCheck %s --check-prefix=CHECK
-; RUN: opt -passes=loop-vectorize -debug-only=loop-vectorize -disable-output %s 2>&1 | FileCheck %s --check-prefix=CHECK-COST
+; RUN: opt -passes=loop-vectorize,instcombine,simplifycfg < %s -S -o - | FileCheck %s --check-prefix=CHECK
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david-arm wrote:

Why are we adding extra passes here? Can you not just simply check the vectoriser output? It adds lots of extra test changes that aren't related to the patch as well.

https://github.com/llvm/llvm-project/pull/154510