[llvm] [X86] Prefer 128-bit vectors for Bulldozer CPUs (PR #225838)

[Simon Pilgrim via llvm-commits]

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@@ -0,0 +1,36 @@
+; RUN: opt -mcpu=bdver2 -passes=loop-vectorize -S < %s | FileCheck %s --check-prefixes=CHECK,CHECK-PREFER-128
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RKSimon wrote:

rename to prefer-128-bit.ll as well

https://github.com/llvm/llvm-project/pull/225838