[llvm] [llvm-objdump] Add triple support to `mcpu=help` (PR #165661)

[James Henderson via llvm-commits]

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@@ -0,0 +1,64 @@
+# RUN: yaml2obj %s -o %t
+# REQUIRES: arm-registered-target,x86-registered-target
+
+
+# CHECK-HELP: Available CPUs for this target:
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jh7370 wrote:

We generally put our run lines before our check lines, to make it easier to follow what the test is actually intending to test.

https://github.com/llvm/llvm-project/pull/165661