[llvm] [llvm][ARM] Add a cortex-m4f alignment hazard recognizer (PR #126991)

[David Green via llvm-commits]

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@@ -213,6 +213,7 @@
 ; CHECK-NEXT:      Machine Natural Loop Construction
 ; CHECK-NEXT:      ReachingDefAnalysis
 ; CHECK-NEXT:      ARM Low Overhead Loops pass
+; CHECK-NEXT:      Post RA hazard recognizer
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davemgreen wrote:

The pipeline can't add instructions after ConstantIslandPass, without the risk of offsets going out of range.

https://github.com/llvm/llvm-project/pull/126991