[llvm] [ARM] Remove `UnsafeFPMath` uses (PR #151275)

[David Green via llvm-commits]

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@@ -186,6 +186,9 @@ class ARMSubtarget : public ARMGenSubtargetInfo {
   /// IsLittle - The target is Little Endian
   bool IsLittle;
 
+  /// DM - Denormal mode
+  DenormalMode DM;
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davemgreen wrote:

Can you take these subtarget parts and commit them separately. If we find issues with part of it, we will not need to revert the whole thing and it might be clearer where the problem lies. Thanks

https://github.com/llvm/llvm-project/pull/151275