[clang] [llvm] [ARM][Clang] Make `+nosimd` functional for AArch32 Targets (PR #130623)

[David Green via llvm-commits]

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@@ -38,6 +38,9 @@ Potentially Breaking Changes
 - Fix missing diagnostics for uses of declarations when performing typename access,
   such as when performing member access on a '[[deprecated]]' type alias.
   (#GH58547)
+- For ARM targets, when using cc1as, the features included in the selected CPU or
+  Arch's FPU are now loaded and utilized. If you wish not to use a specific feature,
+  this will need appending to the command line used.
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davemgreen wrote:

What, from a user facing point of view, changes with the new patch? My understanding is that we pass the fpu features from the driver->cc1as now as opposed to calulcating them in cc1as, but it doesn't alter the behaviour otherwise? The examples I tried all work as before, but there are a lot of different possibilities so I might be missing one again.

https://github.com/llvm/llvm-project/pull/130623