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

[via llvm-commits]

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@@ -695,7 +710,9 @@ void ARMAsmPrinter::emitAttributes() {
                                              DenormalMode::getPositiveZero()))
     ATS.emitAttribute(ARMBuildAttrs::ABI_FP_denormal,
                       ARMBuildAttrs::PositiveZero);
-  else if (!TM.Options.UnsafeFPMath)
+  else if (checkDenormalAttributeInconsistency(*MMI->getModule()) ||
+           checkDenormalAttributeConsistency(
+               *MMI->getModule(), "denormal-fp-math", DenormalMode::getIEEE()))
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paperchalice wrote:

Is a llvm module flag with behavior value 1 or 2 suitable here? 

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